CN104684478A

CN104684478A - Needle guard

Info

Publication number: CN104684478A
Application number: CN201380045114.1A
Authority: CN
Inventors: T·C·库拉辛纳; T·L·基钦
Original assignee: Injectimed Inc
Current assignee: Injectimed Inc
Priority date: 2012-08-27
Filing date: 2013-08-27
Publication date: 2015-06-03
Anticipated expiration: 2033-08-27
Also published as: CN108187181A; JP6147344B2; JP2017185250A; EP2887979A4; AU2013308991B2; CN104684478B; MX2015002672A; CA2881423A1; EP2887979A1; JP2016137230A; AU2018200868B2; WO2014035970A1; JP2015530150A; BR112015004357A2; BR112015004357A8; AU2018200868A1; JP6019184B2; CA2881423C; AU2013308991A1

Abstract

A needle guard assembly having a resilient arm extending from a base situated to slide along the shaft of a needle. In one implementation the needle guard has an elongate containment member that rides with the resilient arm and is co-operable with the resilient arm to effectuate a covering of the entire distal tip of the needle upon the needle being retracted into the needle guard.

Description

Needle guard

Inventor: Carson City, state of Nevada Thomas C.Kuracina and Barcelona, ESP Tim L.Kitchen; Two inventors are United States citizen.

The cross reference of related application

The application is the serial number submitted on February 28th, 2011 is No.13/037, the application that continues of the U. S. application of 164.

Technical field

Disclosed hereinly the present invention relates to a kind of safety needle device.

Background technology

Many United States Patent (USP)s describe safe vein injection (IV) conduit, and described conduit provides protection to a certain degree at the needle point place of far-end after usage, and described patent includes but not limited to: McLees, U.S.Pat.No.5, and 135,504; Erskine, U.S.Pat.No.5,797,880; Woehr, et al., U.S.Pat.No.6,287,278; Bialecki, et al., U.S.Pat.No.6,652,486; McGurk, U.S.Pat.No.7,291,130; Rhad, et al., U.S.Pat.No.7,303,548; Menzi, et al., U.S.Pat.No.7,731,687; And Harding, et al., U.S.Pat.No.7,828,774.

The conduit of the safety of these prior aries all demonstrates one or more shortcoming: after needle point is covered by release mechanism, likely medical worker or other people is placed in the risk under blood that is that be exposed to percutaneous or non-percutaneous or body fluid.Although needle point itself is capped after using on many safe vein injection catheters, but whole needle point is not fully received after usage, thus causes the blood of the end being present in pin inner chamber or fluid leakage or otherwise spill into working space and contact healthcare givers.Such as, the blood of splashing can enter the mucosal areas of the eyes of any medical personnel very pressing close to splashing place, nose or mouth.So described exposure will be reported, and will occur the treatment exposed, prevention and tracking, cause medical institutions to incur loss and to the worry of individual exposure in blood.In addition, unintentional happenstance can make the needle guard that some markets have been bought lose efficacy easily, and Needle hub assembly no longer protects or protects contaminated needle point.

Fig. 1-5 shows and United States Patent (USP) 6, and 287, the safe needle sleeve 10 that needle guard disclosed in 278 is similar.Needle guard 10 is constructed by the single piece of material shown in Fig. 1 and forms the structure shown in Fig. 2-5 in use.Fig. 2 and Fig. 3 shows the different side view of the needle guard 10 being in ready position, wherein, and the needle point 18 place unprotect of the far-end of pin 15.Fig. 4 and Fig. 5 shows after described needle guard has been activated to cover the needle point 18 of described far-end, the different side view of described needle guard 10.As shown in Figure 4 and Figure 5, although the needle point 18 of the far-end farthest of described pin 15 is protected, the open lumen 17 in the chamfered region of pin is still exposed.Another problem relevant to described needle guard 10 is the position that power may be applied to needle guard arm 11 and 12, causes Distal arm portion 13 and 14 pushed outwards dynamic.This causes the risk that described tip arm section 13 and/or 14 is left from the needle point 18 of protected described far-end.

Summary of the invention

According to some embodiments, provide a kind of IV conduit tube component, described IV conduit tube component comprises: conduit lining, the conduit with near-end and far-end, the pin with the needle point of shank and far-end and needle guard, described conduit lining comprises the hollow body with near-end and far-end, and described hollow body limits an inner space, the near-end of described conduit is connected on the near-end of described conduit lining, described pin can move between ready position and retracted position, at described ready position, the needle point of the far-end of described pin distad extends from the far-end of described conduit, in described retracted position, the needle point of the far-end of described pin is positioned at one close to the position of the near-end of described conduit, and described shank has profile variations place, described needle guard comprises arm, described arm distad extends from bottom, be shaped in described bottom porose, described needle guard is slidably mounted on described shank, described shank is through the hole forming in described bottom, and the size in described hole makes it engage with the profile variations place of described shank to limit the motion of described pin relative to described needle guard proximad, described arm comprises elastomeric material and has proximal part, middle part and distal portions, and when described pin is in described ready position, the distal portions of described arm is positioned at the side edge of described shank and is resisted against on the side of described shank, described needle guard comprises elongated member further, described elongated member has the through passage extended between the near-end and far-end of described elongated member, described elongated member is from the position of described bottom or distad extend close to the position of described bottom, and along with described needle guard moves at described ready position and described enabling between position, described elongated member can move along described shank, the length that described elongated member has makes substantially while described profile variations place engages the hole in described bottom, the whole distal needle of described pin is arranged to the through passage being positioned at described elongated member, and the distal portions of described arm departs from described shank radially-inwardly to move to the far-end covering described elongated member at least in part, described elongated member is enough hard so that pin is relative to the lengthwise movement of described needle guard described in the far-end limit covering described elongated member at the distal portions of described arm at least in part.

According to other embodiment, provide a kind of IV conduit tube component, described IV conduit tube component comprises: conduit lining, the conduit with near-end and far-end, the pin with the needle point of shank and far-end and needle guard, described conduit lining comprises the hollow body with near-end and far-end, and described hollow body limits an inner space; The near-end of described conduit is connected on the near-end of described conduit lining; Described pin can move between ready position and retracted position, at described ready position, the needle point of the far-end of described pin distad extends from the far-end of described conduit, in described retracted position, the needle point of the far-end of described pin is positioned at one close to the position of the near-end of described conduit, and described shank has profile variations place; Described needle guard comprises the first arm and the second arm, described first arm and the second arm distad extend from bottom, described bottom has the hole formed in wherein, described needle guard is slidably mounted on described shank, described shank is through the hole forming in described bottom, and the size in described hole engages with the profile variations place of described shank to limit described pin relative to the motion proximally of described needle guard; Each in described first arm and the second arm comprises elastomeric material and has proximal part, middle part and distal portions; Described first arm and described second arm to extend and described middle part along them intersects, mutually so the first arm and the distal portions of the second arm described in when described pin is in described ready position are positioned at the side edge of described shank and are pushed against on the relative side of described shank from the diverse location of bottom; Described needle guard comprises elongated member further, and described elongated member has the through passage extended between the near-end and far-end of described elongated member.Described elongated member distad extends from described bottom or near the position of described bottom, and along with described pin moves between described ready position and described retracted position, described elongated member can slide along described shank, the length that described elongated member has makes substantially while described profile variations place engages the hole in described bottom, the needle point of the whole far-end of described pin is positioned at the through passage of described elongated member, and the distal portions of at least one in described first arm and the second arm and described shank depart from and radially move to the inside thus cover the far-end of described elongated member at least in part, described in the far-end limit that the enough hard so that distal portions of at least one in described first arm and the second arm of described elongated member covers described elongated member at least in part, pin is relative to the lengthwise movement of described needle guard.

According to some embodiments, described needle guard comprises the bottom of described needle guard and the integrally formed overall structure of elongated member.

According to some embodiments, make described pin by backstop in described retracted position by assembly or features, described features is by the far-end of described elongated member or merge near the far-end of described elongated member or otherwise make described characteristic portion in the far-end of described elongated member or the far-end near described elongated member.

According to some embodiments, the proximal part of described elongated member comprises the part of reduced and/or can be used for auxiliary described pin self centering frusto-conical portions on described needle guard.

Provide a kind of safety needle device according to another embodiment of the present invention, comprising: pin, described needle set has shank and distal needle, and shank has profile variations place near described distal needle, needle guard, described needle guard can change between SBR and initiate mode, at described SBR, the distal needle of described pin is in unprotect state, in described initiate mode, the distal needle of described pin is in guard mode, described needle guard comprises the arm distad extended from bottom, be shaped in described bottom porose, described needle guard is slidably mounted on described shank, described shank is through the described hole formed in described bottom, described arm comprises elastomeric material and has proximal part, described needle guard comprises elongated member further, described elongated member is from the position of described bottom or distad extend close to the position of described bottom, and along with described needle guard moves at described ready position and described enabling between position, described elongated member can move along described shank, described elongated member has near-end, far-end and the through passage extended between the near-end and far-end of described elongated member, being positioned at or making described Part I engage to limit described pin with the profile variations place of described shank close to the size of the Part I of the near-end of described elongated member of described through passage is moved relative to described needle guard proximad, the while that the length that described elongated member has making to engage the Part I of described through passage at described profile variations place substantially, the whole distal needle of described pin is positioned at the through passage of described elongated member, described elongated member comprises proximal part and distal portions, the proximal part of described elongated member is arranged in the hole of described bottom, and can ready position on the proximal part of described elongated member when described needle guard is in SBR and described needle guard enabling between position when being in initiate mode slide in described bottom, when needle guard is in SBR, the distal portions of described arm is positioned on the distal portions of the far-end close to this elongated member of described elongated member, described arm at least partially against the outside of described elongated member, described needle guard is configured to: along with it is converted to described initiate mode from described SBR, described bottom is relied on to make the distal portions of described arm to move to the far-end of described elongated member along the distally, lateral of described distal portions from described primary importance to the movement of the described second position, the distal portions of described arm is radially moved at the far-end of described elongated member the far-end covering described elongated member at least in part, described elongated member is enough hard so that pin is relative to the lengthwise movement of described needle guard described in the far-end limit covering described elongated member at the distal portions of described arm at least in part.

In further embodiments, in provided needle guard, as when being in SBR when needle guard, to contribute to promoting described arm against shank or elongated member on one or more arms that biasing member acts on described needle guard.

Disclose herein and consider other embodiments many.In addition, the emphasis that should be noted that is, the invention is not restricted to safe vein injection catheter, but is applicable to the pin goods of any kind.

Accompanying drawing explanation

Fig. 1 to Fig. 5 shows the needle guard of prior art;

Fig. 6 A to Fig. 6 C shows the embodiment of flat material, and described flat material can be used for being formed and discloses herein and the needle guard of expecting;

Fig. 7 to Figure 10 shows the Needle hub assembly according to an embodiment;

Figure 11 to Figure 17 shows the elongated member of the protection according to various embodiment;

Figure 18 and Figure 19 shows the Needle hub assembly according to another embodiment;

Figure 20 to Figure 23 shows the Needle hub assembly according to another embodiment;

Figure 24 shows the Needle hub assembly according to another embodiment;

Figure 25 A-D shows the needle guard elongated member according to various embodiments;

Figure 26 to Figure 31 shows the Needle hub assembly according to another embodiment;

Figure 32 to Figure 34 shows the Needle hub assembly according to another embodiment;

Figure 35 to Figure 37 shows the Needle hub assembly according to another embodiment;

Figure 38 shows the safe vein injection catheter assembly according to an embodiment;

Figure 39 and Figure 40 shows the safe vein injection catheter assembly according to another embodiment;

Figure 41 shows the Needle hub assembly according to another embodiment;

Figure 42 A-42D shows the safe vein injection catheter assembly according to another embodiment;

The mode that the needle guard that Figure 43 A-43D shows Figure 42 can be activated;

Figure 44 A-44D shows the needle guard according to another embodiment be used in intravenous injection catheter assembly;

Figure 45 A-45D shows the needle guard according to another embodiment be used in intravenous injection catheter assembly;

Figure 46 shows the elongated member according to an embodiment;

Figure 47 shows the elongated member according to an embodiment;

Figure 48 shows the elongated member according to an embodiment;

Figure 49 A-49D shows the safe vein injection catheter assembly according to another embodiment;

Figure 50 shows the elongated member according to an embodiment;

Figure 51 shows the elongated member according to an embodiment;

Figure 52 shows the elongated member according to an embodiment;

Figure 53 shows the elongated member according to an embodiment;

Figure 54 shows the elongated member according to an embodiment;

Figure 55 B shows the bottom of the alligator clamp according to embodiment, and the bottom of described alligator clamp has the keyhole of the near-end of the elongated member for holding Figure 55 A;

Figure 56 A shows the elongated member according to an embodiment;

Figure 56 B shows the bottom of the alligator clamp according to embodiment, and the bottom of described alligator clamp has the keyhole of the near-end of the elongated member for holding Figure 56 A;

Figure 57 A and Figure 57 B shows bottom the alligator clamp according to other embodiment;

Figure 58 A-58C shows the elongated member with the seal member being positioned at its far-end;

Figure 59 shows the seal member according to another embodiment;

Figure 60 A-60C shows the Needle hub assembly according to another embodiment be incorporated in guide wire introducer;

Figure 61 shows the Needle hub assembly according to another embodiment;

Figure 62 A-62D illustrates the Needle hub assembly according to another embodiment, wherein, spring assembly and alligator clamp integral;

Figure 63 A-63D shows the needle guard according to another embodiment;

Figure 64 A-64C shows the needle guard according to another embodiment;

Figure 65 shows the needle guard according to another embodiment;

Figure 66 A-66C shows the needle guard according to another embodiment;

Figure 67 A-67B shows the needle guard according to another embodiment;

Figure 68 A-68B shows the needle guard according to another embodiment;

Figure 69 A-69C shows the needle guard according to another embodiment;

Figure 70 A-70C shows the needle guard according to another embodiment;

Figure 71 shows the needle guard according to another embodiment.

Detailed description of the invention

Fig. 6 to Figure 11 shows the needle guard 100 according to some embodiments.According to an embodiment, as shown in Figure 6 A and 6B, the Part I 110 of needle guard 100 is by having elastic flat material manufacture, and be shaped as the use structure presented in Fig. 7-10, the Part II 150 (see Figure 11 and Figure 12) of needle guard 100 limits elongated member 152, and described elongated member 152 has the through passage 153 extended between near-end 154 and far-end 156.Fig. 7 and Fig. 8 shows the different side view that the needle guard 100 be positioned on entry needle 130 is in the first axial location, and the far-end 134 of described pin is not protected.Fig. 9 and Figure 10 shows the different side view of the needle guard 100 being positioned at the second axial location on pin 130, and the described far-end 134 comprising whole inclined-plane 136 is all protected.

In one embodiment, the Part I 110 of needle guard 100 has the first elastic arm 101 and the second elastic arm 102, and each described arm comprises proximal part 103,104 separately; Middle part 105,106 and distal portions 107,108.Described first arm 101 and the second arm 102 distally to extend and along their middle part 105 from the diverse location of bottom 118,106 cross one another, so when described needle guard is positioned at described first axial location described distal portions 107, the lip portion 111,112 of 108 is positioned at the offside of shank 131 and the offside against described shank 131 is pushed.The Part I 110 of described needle guard 100 is slidably mounted on described shank 131, and described shank is through the hole 119 be formed in described bottom 118.In one embodiment, when described needle guard is positioned at the second axial location, the size in hole 119 engages to limit moving along first direction between described pin 130 and described needle guard 100 with the profile variations place 132 on described pin.The change of described profile 132 can comprise the enlarged (as described in Figure 33 and Figure 35) of curling or other form any on described shank 131.

As shown in Figure 7, when described needle guard is in ready position, described elongated member 152 is arranged in described needle guard 100, and the near-end 154 of described elongated member 152 is placed on described bottom 118 place or near described bottom 118 and the far-end 156 of described elongated member 152 is placed on lip portion 111 place of described arm 101 or the lip portion 111 near described arm 101.In certain embodiments, described elongated member 152 is coaxial with described pin 130 substantially, and the diameter of described through passage 153 or enough large of cross-sectional area are slided to allow described elongated member to circumvent described profile variations place 132.In other embodiments, described elongated member 152 is coaxial with described pin 130 substantially, and described all parts of through passage 153 or the diameter of proximal part or cross-sectional area are less than the cross-sectional area at described profile variations place 132.Such as shown in Fig. 9, in an embodiment, wherein said all parts of through passage 153 or the cross-sectional area of a part are less than the cross-sectional area at described profile variations place 132, and described through passage 153 is expandable is overlying on (example as shown in Figure 9) on described change place profile 132.In certain embodiments, described elongated member 152 is elastic with lower part: the part that namely described through passage 153 is less than the cross-sectional area at described profile variations place 132 is elastic, so just make the elastic part of described through passage pass through place's profile of described change after cause the cross-sectional area of described through passage 153 inwardly to shrink.In certain embodiments, as discussed in more detail, only the proximal part of described expandable member 152 has the transverse cross-sectional area reduced, described in the transverse cross-sectional area that reduces can elasticity be overlying on described profile variations place 132 with expanding.In use, described elongated member 152 is axially advanced along described shank together with the Part I 110 of described needle guard 100.In certain embodiments, utilize the near-end 154 of adjacent described bottom 118, described elongated member 152 drives the Part I 110 of described needle guard.In other embodiments, the near-end 154 of described elongated member 152 is attached on described bottom 118.In other embodiments, the proximal part of described elongated member 152 or whole described elongated member 152 integral with described bottom 118.

Fig. 9 and Figure 10 shows needle guard 100 and is in the second axial location on described pin 130, and the described needle point 134 comprising whole inclined-plane 136 is all protected.In one embodiment, along with described needle guard advances and described lip portion 111 and 112 described needle point 134 distally moves on described pin 130, by the joint of profile variations place on described pin 132 with the hole 119 of described bottom 118, described needle guard 100 by backstop at described second axial location.Hereafter the embodiment of other backstop will be disclosed.The length of described elongated member 152 is chosen to be: while the hole 119 substantially at described profile variations place 132 in bottom 118 described with (such as) engages, the needle point 134 of the whole far-end of described pin 130 and chamfered region 136 are placed as and are positioned at described through passage 153, and at least one making in the distal portions 107,108 of described arm 101,102 departs from described pin and advance to the far-end 156 fully or at least in part covering described elongated member 152.

In one embodiment, as shown in Figure 7, the distal portions 107 of described arm 101 is configured to become first jiao when described needle guard 100 is in ready position with the axis of described pin, and the distal portions 108 of described arm 102 is configured to become second jiao when described needle guard 100 is in described ready position with the axis of described pin, described second jiao is greater than described first jiao.In addition, as shown in Figure 9, when described needle guard 100 is in described second axial location, the distal portions 107 of described arm 101 is directed and biased, to present vertical relation with the longitudinal axis of described elongated member 152 substantially.In certain embodiments, the cross-sectional area of described distal portions 107 enough covers the whole far-end 156 of described elongated member 152.In other embodiments, described elongated member 152 is less than whole far-end 156 by the part that described distal portions 107 covers.

As mentioned above, the distal portions 107 of described arm 101 can be biased, makes when described needle guard 100 is in described second axial location described distal portions 107 apply the active force of downwards/proximad to the far-end 156 of described elongated member 152.In one embodiment, described bias voltage is produced by the resilient hinge in described region 117.Being applied with of active force of downwards/bottom helps be formed completely or sealing partly, and described sealing can hinder or prevent the pollutant of intracavity in described pin 130 and described elongated member 152 from leaking from described needle guard 100 after described needle guard 100 is in described second axial location.In certain embodiments, the distal portions 108 of described arm 102 is directed and biased, to apply towards the power in the direction of the far-end 156 of described elongated member 152 on described distal portions 107 with described distal portions 107 one-tenth one oblique angle.

As shown in figure 38, in an embodiment, wherein said needle guard 100 forms a part for intravenous injection catheter 700, ledge 116 and 117 can be formed on described arm 101 and 102, when conduit tube component 700 is in ready position, described ledge 117 and 117 engages with the one or more features 703 in the inside of conduit lining 702 respectively, to be fixed on releasedly in described conduit lining by described needle guard 100.

As mentioned above, relevant with the spring clip type needle guard device of prior art problem be power may be applied to spring jig arm parts on and cause described Distal arm portion pushed outwards dynamic.This causes after described needle guard has been in protective position, described Distal arm portion by from the needle point protected remove.In order to solve described problem, in certain embodiments, the Part I 110 of described needle guard 100 comprises straight or straight substantially arm section 113 and 114, and described arm section 113 and 114 is configured to respectively close to described Distal arm portion 107 and 108.As shown in Figure 9, described arm section 113 and 114 is set to when described needle guard 100 is in described second axial location on described pin 130, described arm section 113 and 114 near described elongated member 152 outer surface and be configured on the offside of the outer surface of described elongated member 152.Described arm section 113 and 114 is configured to the position occupied when described needle guard is in described second axial location between the cross point 126 of described distal portions 107,108 and described arm 101 and 102.In one embodiment, described arm section 113 and 114 is positioned at and is respectively adjacent to described distal portions 107 and 108 place, and is configured to the cross point 126 of described distal portions and described arm 101 and 102 to separate.In one embodiment, by distance (D that part 113 and described cross point 126 distally separate ₁) be more than or equal to L ₁sin β, L ₁for the approximate distance between described cross point 126 and described arm 101 position crossing with the excircle of described elongated member 152, β be described arm 101 and perpendicular to the longitudinal axis of described elongated member 152 line between angle at described cross point 126 place.Although not requirement, preferably, described part 114 distally separates with described cross point 126, aims at described part 113 so that longitudinally upper substantially.

In certain embodiments, described part 113 and 114 has the width identical substantially with the width of 108 with described distal portions 107 respectively.In other embodiments, as shown in Figure 6B, the width that described part 113 and 114 has is less than the width of distal portions 107 and 108 respectively.In other embodiments, described part 113 can comprise arcuate section consistent with the outer curvature of described elongated member 152 at least in part with 114 or in both one.The advantage of described configuration is that power is if inappropriate applied to described arm 101 and/or 102, and the outer surface of described part 113,114 and described elongated member 152 at least part of consistent serves and make described part 13,114 be stabilized in effect around described elongated member.In other words, when unsuitable power is applied on described arm 101 and/or 102, described at least partly unanimously decrease described arm 101 and/or 102 on the outer surface of described elongated member 152 towards the probability of a Slideslip.As example, with reference Fig. 6 A, the outer rim 121 and 122 of described part 113 and 114 can curve inwardly by line of cut 123 and 124, respectively to present the configuration of bend portions.

The Part I 110 of described needle guard 100 and Part II 150 can present any various structure.Get back to Fig. 6 A and Fig. 6 B again, in one embodiment, when described Part I 110 forms the alligator clamp that example as is seen in figs 7-10 goes out, the middle part 105 and 106 of described arm is enough narrow to use the gap between described middle part 105 and 106 and the outer surface of described elongated member to hold described elongated member 152.Dotted line in Fig. 6 A and Fig. 6 B depicts the folding position for the manufacture of bending section and/or articulated section during alligator clamp manufacture process.

In certain embodiments, described elongated member 152 comprises that to have one or more material of enough hardness bending to resist during use.One or more material described can comprise the material of any kind or the combination of material, such as, and metal, elastomer/plastics, braiding structure, any strand structure, their combination etc.Elongated member 152 can comprise multiple part of being linked together and portion's section, to form this elongated member.

Such as, described elongated member 152 is manufactured by using deep-draw manufacturing process, and wherein, metal, in drawing process, work hardening occurs, therefore without the need to carrying out secondary heat treatment on completed part.Described elongated member 152 also can comprise, such as, and the part that elastomer/plastic tube is extruded.

According to some embodiments, contiguous or close to the through passage 153 in the proximal part of the elongated member 152 of described bottom 118, there is the cross-sectional area/diameter reduced, described in cross-sectional area/diameter of reducing the proximal part of described through passage 153 is engaged with the profile variations place 132 on described shank 131.In one embodiment, the part that the diameter of described through passage 153 reduces replaces the hole 119 in described bottom 118 to act as stop, to limit the motion of the needle guard 100 on described pin 130 towards described second axial location.In other embodiments, the lining or the sleeve that reduce diameter can be placed on near-end 154 place of described elongated member 152 or be connected with the near-end 154 of described elongated member 152, to play spacing effect.

According to other embodiment, the proximal part of described elongated member 152 comprises the material that the mode that can describe with Fig. 9 expands or shrinks in profile variations place 132.In one embodiment, the proximal part of described elongated member comprise allow described elongated member to expand in described profile variations place 132 and while to the elastomeric material of described profile variations place 132 power of imposing restriction/radial force.The advantage of described embodiment is after described needle guard 100 is placed to cover the distal portions of described pin, and the elastic restraint power be applied in described profile variations place 132 plays the effect of the transverse movement of the described elongated member 152 of restriction.When being sealing wholly or in part between the far-end 156 requiring described distal portions 107 or described arm 101 and described elongated member 152, this embodiment is advantageous particularly.According to other embodiment, elongated member 152 entirety comprises flexible material, and slide along with described elongated member or move to the distal portions of described pin, described flexible material allows described elongated member expand in the profile variations place 132 of described pin 130 or shrink.

Figure 13 is the cross-sectional side view of the embodiment of the elongated member 152 of the proximal part 155 with reduced inner diameter.Described elongated member 152 also can have absorbability or infiltrative undercoating/Bao Mo/liner or like 158, along with described pin to slide through described elongated member or mobile, the size of described absorbability or permeability parts 158 makes its external diameter contacting described pin 130 and absorbs or the blood eliminated from the outer surface of described pin or body fluid.Described absorbability or permeability parts 158 go back blood or the body fluid that Absorbable rod is present in pin inner chamber.In certain embodiments, described absorbability or permeability parts 158 comprise medicine, described medicine, such as antibacterial or antibiotic.

Figure 14 is the cross-sectional side view of an embodiment of elongated member 152, and described elongated member 152 comprises the part of the reduced at near-end 154 place being positioned at described elongated member 152 or frusto-conical portions 159 and is positioned at the distal flange 157 at far-end 156 place of described elongated member 152.According to an embodiment, described distal flange 157 provides larger contact surface 179, is easier to be formed to make the sealing between the distal portions 107 of described arm 101 and the far-end 156 of described elongated member when being in the second axial location on described pin 130 when described needle guard.In other embodiments, the antelabium 111 of described distal flange 157 and described arm 101 is constructed to make when described needle guard 100 is in the second axial location on described pin 130, and described antelabium 111 engages with described bead 157 to help the distal portions 107 of described arm 101 to be fixed on the far-end 156 of described elongated member 152.In the described embodiment, institute's distal flange 157 can be annular, continuous print or segmentation.

Figure 15 is the cross-sectional view strength of another embodiment of elongated member 152, and described elongated member 152 comprises the proximal part of part or the frusto-conical portions 160 with reduced, and described part 160 is transitioned into the part or sleeve 161 place that terminate reduced.Described elongated member 152 also can comprise distal flange 157.In one embodiment, described proximal part 161 is used to the near-end of described elongated member 152 to be attached on described bottom 118.Describedly attachedly to come by punching press, hot pressing or other mechanical fasteners technique.Such as, described proximal part 161 can be segmented to be formed and be fixed to jut on hole 119 or other opening being provided in described bottom 118 or analog.In other embodiments, to allow described proximal part 161 to be pressed in described hole 119 fixing for the shape and size of described proximal part 161.The emphasis that should be noted that is, the combination of other various attachment method any or method can be used to be attached on the bottom 118 of described needle guard by the elongated member 152 of and expection open at this.These methods can comprise use binding agent, soldering, welding, mechanical attachment etc.As hereafter will discussed in more detail, in certain embodiments, described elongated member 152 is integrally once-forming with the Part I 110 of described needle guard 100.

The advantage providing the length along described elongated member 152 to reduce the region/part of diameter is: these region/parts contribute to safeguarding by the described elongated member be configured in coaxially on described pin 130, when described elongated member 152 moves along described shank 131, the resistance that these regions described decrease frictional force or exist in other forms.These region/parts also contribute to the elongated member 152 that promotion or maintenance and described shank 131 are in coaxial relation.

Figure 16 is the axis side view such as grade of an embodiment of elongated member 152, and described elongated member 152 has the distal portions 164 of diameter increase and the proximal part 163 of minor diameter.Figure 17 is the viewgraph of cross-section of an embodiment of elongated member according to Figure 16, described elongated member comprises inner ring or the lining 165 of the intracavity remaining on the large diameter part 164 of described increasing, described inner ring or lining 165 are arranged to described pin 130 to be positioned in described elongated member 152 coaxially, and along with described pin slides or axially moves through described elongated member 152, described inner ring or lining 165 wipe blood from the outer surface of described pin 130 or body fluid.An advantage of the distal portions 164 that described diameter increases is: described distal portions 164 provides a reservoir, and described reservoir is for collecting blood or the body fluid of inner chamber that is that wipe from the outer surface of described pin and/or that come from described pin.In one embodiment, described reservoir comprises coating for absorbing blood or body fluid or material.In one embodiment, absorbent material occupies all parts or the major part of described reservoir, and described reservoir for deformable maybe can pierce thus in the reservoir region of described elongated member, provide space for the distal portions inserting described pin.In an embodiment, wherein sealing is configured between the far-end of described elongated member and described Distal arm portion 107, to suppress the formation of hydraulic locking on the wall that one or more openings can be configured in institute's reservoir.In one embodiment, enough little of to prevent or to suppress blood or body fluid to pass from described opening of the one or more opening on the wall of described reservoir.

In certain embodiments, seal member that is inner or outside is configured in the position of near-end 154 place of described elongated member or the near-end 154 close to described elongated member.

In other embodiments, described elongated member 152 comprises one or more inclosure inner annular ring, floor or segment, and annular ring, floor or segment can be gone forward and then distortion or contraction in described profile variations place 132 at described pin 130 along with described needle guard 100.In certain embodiments, described elongated member 152 comprises the part of elongated inclosure inside that all parts or a part along described elongated member extend.In the described embodiment, the structure of described inclosure can utilize extrusion process to be shaped.The parts of described inclosure can comprise chemical substance, along with the parts of described one or more inclosure expand in described profile variations place 132, make to interact between described chemical substance and solidify to be locked in the profile variations place 132 of described pin 130 by the near-end 154 of described elongated member 152.

As mentioned above, when described needle guard 100 is in described second axial location, be desirably in the place's of joining forming section of the distal portions 107 of described arm 101 and the far-end 156 of described elongated member 152 or seal completely.According to some embodiments, the inner surface coating of described distal portions 107 or lamination have a kind of material, compound or reagent, and when described distal portions 107 contacts with described far-end 156, described material, compound or reagent are conducive to the far-end 156 formed described elongated member 152 and seal.On the contrary, or carry out applying with the described inner surface at Distal arm portion 107 or lamination combines, the far-end 156 of described elongated member 152 also can apply or lamination is conducive to being formed the material of sealing, compound or reagent.Such as, in certain embodiments, described distal portions 107 and/or described far-end 156 comprise for realize between described parts completely or the formable material of sealing of part, such as elastomer.Other example comprise coating, lamination or otherwise processed by sticky matter or binding agent described distal portions 107 and described far-end 156 a contact surface or two contact surfaces.Other example can comprise elastomeric O-type circle is fixed on described elongated member 152 far-end 156 on, make distad extending at least partially on described end 156 of described O type circle, make O type circle far away can closely cooperate with the contact surface of described Distal arm portion 107.Also can consider other encapsulating method.

Figure 18 and Figure 19 shows the needle guard 200 according to another embodiment.Except arm 102 part 114 place stop and on the outer surface being attached to elongated member 152 at described part 114 place except, described needle guard 200 is similar with above-described needle guard 100.In one embodiment, described part 114 is bent to produce the attachment surface identical or approximate with the curvature of the outer surface of described elongated member 152.In other sides all substantially, the Part I 110 of described needle guard 200 and the embodiment of Part II 150 are to realize the covering of the far-end to described pin 130 with identical mode mentioned above.It is important to note that described arm 102 can be fixed in nearer position on the outer surface of described elongated member 152.Such as, described arm 102 can comprise the shorter end section of the length of described arm 102, and described end section is attached to any position of the length along described elongated member 152.In other embodiments, described arm 102 is removed by whole removing together with being secured to the far-end 154 of the elongated member 152 on bottom 118.

According to other embodiment, Part I 110 and the elongated member 152 of described needle guard 100 construct with being integrally formed.In one embodiment, described monolithic molding realizes to form described elongated member 152 by carrying out deep-draw processing to the bottom 118 of described needle guard.By this way, described elongated member 152 can be described to the extension in the hole 119 in bottom 118.According to an embodiment, monolithic molding construction process starts from the bonding jumper 50 with region 52 formed as shown in Figure 6 C, and described region 52 is designated as the bottom 118 for the formation of needle guard 100.In certain embodiments, described bonding jumper 50 has uniform thickness, but in other embodiments, described bar 50 is configured to the gauge at least at region 54 place with increase, deep-draw processing will be used in described region 54 and sentence the described elongated member 152 of formation.In certain embodiments, such as shown in FIG, described arm section 101 and/or 102 was formed before elongated member described in deep-draw 152, but in other embodiments, described part 101 and/or 102 is formed after described elongated member 152 is shaped.In certain embodiments, manufacture process is from having the metallic plate of uniform and gauge increase, and be next the processing of metallic plate described in flattening area 56 and 58, described arm section 101 and/or 102 is designated as and is positioned at described region 56 and 58.Described pressing processing can occur before or after use deep-draw is processed to form described elongated member 152.Carry out flattening processing with while the one or more regions producing thickness and reduce or after this, being cut off at least partially of the region of described thickness minimizing produces described arm section 101 and/or 102 at least partially.

Referring to figs. 13 through Figure 17, by using size and dimension to be suitable for the one or more moulds forming one or more features, one or more features 155,159,160,161,163 can be shaped in described elongated member 152 between deep-draw processing period.Such as, in one embodiment, the frusto-conical portions 160 of described elongated member 152 and reduced end portion 161 are formed during described stretch process.By the advantage that described features 160 and/or 161 is merged in described elongated member 152 be: described features 160 and 161 causes the proximal part of described elongated member 152 during assembling process to be assembled on described pin 130 with self centering method.

According to another manufacturing process, in order to form the Part I 110 of described needle guard 100, by before described metallic plate segmentation, first multiple elongated member 152 is deep-drawn from metallic plate described in monolithic or is deep-drawn at least in part.

Figure 20 to Figure 23 shows the Needle hub assembly 300 according to another embodiment.Except arm section 113 and 114 has been modified, described needle guard 300 is similar with above-described needle guard 100, and described arm section 113 and 114 is modified to comprise and is configured to arc-shaped recess 313 and 314 consistent with the curvature of the outer surface of described elongated member 152 at least in part.In one embodiment, described arc-shaped recess 313 and/or 314 is configured to semicircle, and when described needle guard 300 is in described second axial location to protect the far-end of described pin 130, the shape of described semicircle is consistent with the outline of described elongated member 152.When unsuitable power be applied to two described arms or on one of them, on the outer surface that the circumferential edges of described arc-shaped recess 313 and 314 is resisted against described elongated member 152 when described needle guard 300 is in described second axial location (Figure 23) with suppress the distal portions 107 and 108 of described arm 101 and 102 from the position of the far-end covering described pin 130 pushed outwards from.

As shown in figure 21, the method manufacturing needle guard according to embodiment that is open at this and that consider is: the Part I 310 of first punching press, cutting or the described needle guard that is otherwise shaped from one block of example as shown in figure 20 flat flexible material.After described Part I 310 is formed, described elongated member 152 can be placed through passage 153 is axially aligned with the hole 119 in bottom 118.Described elongated member 152 can be used to support through described hole 119 and through the fixture extended at least partially of described through passage 153.According to other method, as shown in figure 21, the near-end 154 of described elongated member 152 is configured to the part 169 with reduced diameter, described part 169 extends through described hole 119 or is otherwise installed on described hole 119, completely or partially to support the elongated member 152 being in vertical relation with described Part I 310.In one embodiment, the annular ring being arranged in the reduced of the near-end 154 near described elongated member 152 provides a kind of method be fixed to by described elongated member 152 on described bottom 118: the near-end by described elongated member slides into described base apertures 119 and fixes thus be fixed on described bottom 118 by described elongated member 152.In other embodiments, the seam in described hole 119 is extended to from the side of described bottom or groove is configured in described bottom 118.By this way, described elongated member 152 can be configured to the annular ring of the reduced of the near-end 154 had near described elongated member 152, and annular ring allows described elongated member side direction to load and is fixed in described hole 119 to realize described elongated member 152 to be attached to described bottom 118.Be supported on described Part I 310 rightly at described elongated member 152 or be attached on the basis on described Part I 310, described Part I can be bent or bend portions with produce or partly produce required arm section and articulated section.In this stage, described Part I 310 and described elongated member 152 can be loaded onto on described pin 130, and described Part I 310 is bent (if necessary) further and is disposed on described pin 130 in the mode that Figure 22 describes.

According to some embodiments, described Part I 310 and the described elongated member 152 of described needle guard 300 construct with being integrally formed.

Figure 24 shows the needle guard 350 according to another embodiment.Except arm 102 just in time to end at the far-end of recess 314 along dotted line 320, described needle guard 350 is similar with needle guard 300 mentioned above.In the described embodiment, when described needle guard 350 is positioned at the second axial location on described pin 130, described recess portions 314 is pushed into the exterior surface with described elongated member 152 constantly, and the distal portions 107 being positioned at described arm 101 covers the far-end 156 of described elongated member individually.Dissimilar feature routine as shown in figure 24 can be comprised at the arm 101 and 102 of this needle guard disclosing and consider, wherein arm 102 comprises the recess 314 of the outer surface for adjacent described elongated member 152, and wherein arm 101 comprises the elongate surface 113 of the outer surface for adjacent described elongated member 152.

According to some embodiments, the Part I of the needle guard of Figure 24 and elongated member construct with being integrally formed.

According to some embodiments, as shown in fig. 25 a, described elongated member 152 comprises elastic construction 170, described elastic construction 170 has overlapping longitudinal component 171 and 172, the longitudinal component 171 and 172 of described overlap is separable with the seam or the groove that form temporary transient longitudinal direction along the length of described elongated member, is loaded on described pin 130 to allow described elastic construction 170 side direction.Figure 25 A depicts the top view of described elongated member 152.After described elongated member 152 side direction is loaded on described shank, described elastic construction 170 recovers or recovers substantially its initial structure with fully around the circumference of described shank 131.In one embodiment, described elastic construction 170 comprises a kind of elastomeric material, and when the contact surface of the longitudinal component 171 and 172 of described overlap contacts with each other, the surface characteristic of described elastomeric material is conducive to forming sealing along the longitudinal component 171 and 172 of described overlap.In other embodiments, institute's elastic construction 170 comprises a kind of metal.In certain embodiments, the contact surface of the overlap of described part 171 and/or 172, through process or otherwise coating substance, forms sealing to make the length along described elongated member 152.In other embodiments, ultrasonic welding process or similar technique is utilized to form sealing between the part 171 and 172 of described overlap.

In other embodiments, as shown in Figure 25 B-D, described elongated member 152 comprises one or more seam 175a, 175b, and described seam 175a, 175b are that described elongated member side direction is loaded on described shank by separable being beneficial to.As some embodiments in Figure 25 A, described elongated member 152 can comprise a kind of elastomeric material, and when the mating surface of described seam contacts with each other, the characteristic of described elastomeric material is conducive to forming sealing between the mating surface of described seam.In other embodiments, a contact surface of described seam or two contact surfaces, through process or otherwise coating substance, form sealing to make the length along described elongated member 152.In other embodiments, ultrasonic welding process or similar technique is utilized to form sealing between the mating surface of described seam.

Figure 26 to Figure 31 shows the Needle hub assembly 400 according to another embodiment.Except arm section 113 and 114 has been modified, described needle guard 400 is similar with needle guard 100 mentioned above, and arm section 113 and 114 is modified to comprise the part 413 and 414 being configured to shaping consistent with the curvature of the outer surface of described elongated member 152 at least in part.The proximal part of described elongated member 152 also comprises the part 161 with the similar frusto-conical portions 160 in Figure 15 and reduced.In one embodiment; when described needle guard 400 is in described second axial location to protect the far-end of described pin 130; the proximal edge 415 and 416 of the part 413,414 of described shaping or the shape of in both consistent with the outline of described elongated member 152.As shown in figure 29, in fact, when unsuitable power is applied on described arm 101 and/or 102, when described needle guard 400 is in described second axial location, the inner surface of the part 413 and 414 of described shaping leans against on the outer surface of described elongated member 152, to suppress the distal portions 107 and 108 of described arm 101 and 102 pushed outwards dynamic from the position of the far-end of the described pin 130 covered.Figure 30 is the axis side view such as grade of the Needle hub assembly 400 being in the first axial location be positioned on described pin 130.Figure 31 is the axis side view such as grade of the Needle hub assembly 400 being in the second axial location be positioned on described pin 130.

According to some embodiments, described Part I 410 and the described elongated member 152 of described needle guard 400 construct with being integrally formed.

As the embodiment above as described in composition graphs 24, will be appreciated that, described needle guard 400 can be modified to arm 102 is stopped in the remote location of the part 414 be shaped.In the described embodiment, when described needle guard is positioned at the second axial location on described pin 130, the part 414 of described shaping is pushed to the exterior surface with described elongated member 152 constantly, and the distal portions 107 being positioned at described arm 101 covers the far-end 156 of described elongated member individually.

Figure 61 shows and similar Needle hub assembly in Figure 30, but there is multiple distinguishing characteristics.First distinguishing characteristics is the structure of pin.In the assembly of Figure 30 a, discrete profile variations place 132 is configured to: the stopping means being positioned at the distal portion office near distal needle of pin; And in the assembly of Figure 61, the proximal shoulder 402 of the elongated portion 401 that the diameter that stopping means comprises the far-end being positioned at pin increases.Another distinguishing characteristics is the structure of elongated member.In the embodiment of Figure 30, the proximal part of elongated member 152 comprises the part 161 of reduced, the part 161 of described reduced is configured to: the profile variations place 132 when needle guard has been enabled as the distal needle 134 covering pin and on pin acts on, to carry out backstop to the needle guard on pin.In the embodiment of Figure 61, elongated member 408 comprises uniform diameter structure, and tongue piece 409 is cut in the proximal part of elongated member.Once be formed, tongue piece 409 is by inside bending or bend, to make the inside being positioned at elongated member 408 at least partially of tongue piece.The part being positioned at elongated member inside of tongue piece 409 is configured to engage with the shoulder 402 of pin, to carry out backstop when needle guard is enabled as the distal needle 403 covering pin to the needle guard on pin.In certain embodiments, two or more tongue pieces are provided with.

It is important to note that the feature of needle guards a large amount of disclosed in this (above and below), can openly and between a large amount of embodiment considered exchange in the text.Such as, although some embodiments disclose features 113,114 and the use in further feature portion 313,314 and further feature portion 413,414, will be appreciated that, the combination of these features can form the part according to needle guard of the present invention disclosed herein.In addition, exemplarily, the kind of elongated member 152 disclosed herein and elongated features can openly and between a large amount of embodiment considered be exchanged in the text.

Figure 32 to Figure 34 shows Needle hub assembly 500, described Needle hub assembly 500 is similar with Needle hub assembly 300 mentioned above, the difference of described Needle hub assembly 500 and described Needle hub assembly 300 is: the far-end 502 of described elongated member 152 comprises the inclined-plane of the inclined orientation of the longitudinal axis relative to described elongated member, and the distal portions 107 of described arm 101 is directed the far-end 502 of the inclined orientation adapting to described elongated member angularly when described Needle hub assembly 500 is in the second axial location as shown in figure 34.The proximal part of described elongated member 152 also comprises the part 161 with the similar frusto-conical portions 160 in Figure 15 and reduced.Preferably, distal portions 107 to be configured to when described needle guard is in described second axial location applying power on the far-end 502 of described elongated member 152.The antelabium 504 being positioned at the far-end of described part 107 is also oriented in the face of downward position and the position of described antelabium 504 makes it across the opening bevel of the far-end of described elongated member 152 to provide mechanical position limitation, when pressure or " extruding " are applied on arm 101 and/or 102, described mechanical position limitation suppresses being separated of the far-end 502 of described Distal arm portion 107 and described elongated member.

According to some embodiments, Part I and the elongated member 152 of described needle guard 500 construct with being integrally formed.

In disclosed in the text various embodiments, when pressure or " extruding " are applied on arm 101 and/or 102, the far-end that the antelabium downwards can be configured in described distal portions 107 is to suppress being separated of the far-end of described Distal arm portion 107 and described elongated member 152.In certain embodiments, the far-end of described elongated member 152 is configured to have depression or otch to interlock with the antelabium of the far-end being configured in described part 107.

Figure 35 to Figure 37 shows the needle guard 600 according to another embodiment.Described needle guard comprises Part I 610, and Part I 610 has the elongated member 652 be integrated in wherein.In one embodiment, described Part I 610 comprises respectively from the first arm 601 and the second arm 602 that the offside of bottom 618 extends.Preferably, described Part I is made up of piece of elastic material, and described piece of elastic material is bent to form described bottom 618, arm 601,602 and Distal arm portion 607,608.Hole (not shown) in described bottom 618 becomes certain size to hold the proximal part 136 of described pin 130, and along with described needle guard is transitioned into the second axial location with the far-end 134 (as shown in figure 37) of pin as described in holding from the first axial location (as shown in Figure 35 and Figure 36), lead along shank to described needle guard in described hole.Described arm 601,602 is hinged on described bottom 618 place, and is configured to when described needle guard 600 is in not protected the first axial location of the far-end 134 of described pin and the outer surface of described pin 130 presents syntopy.The elongated member 652 respectively with near-end 654 and far-end 656 is configured to have the through inner passage 653 extended between described two ends.Described pin 130 comprises the outwards thicker gradually distal rod portion 138 having proximal stem portion 136 and diameter and increase gradually.In use, described elongated member 652 is positioned as being located in Part I 610, and described Part I 610 is between described bottom 618 and described Distal arm portion 608.In one embodiment, hole dimension in bottom 618 make its engage with distal rod portion 118 thicker gradually with by needle guard 600 as Figure 37 the second axial positions of describing, wherein, the diameter that the whole inner passage 653 of elongated member 652 has is enough to make the far-end 656 of elongated member extend the needle point of the far-end of described pin or cross the needle point of far-end of described pin.In other embodiments, the near-end of described elongated member 652 is configured to have the part that internal diameter reduces, and the part that described internal diameter reduces plays a part described needle guard backstop in described second axial location.In another embodiment, sleeve or lining are positioned at near-end 654 place of described elongated member 652 and comprise endoporus, and described endoporus has the diameter being enough to the stop taking on the second axial location.

As shown in figure 37, be positioned as covering the far-end 134 of described pin 130 substantially at the far-end 656 with described elongated member 652 while, described arm 601 and 602 to depart from and the energy be stored inwardly promotes to cover the far-end of described elongated member from described shank.According to an embodiment, described Distal arm portion 608 is hinged to provide downward/lower reaction power on the far-end 656 of described elongated member 652 at position 620 place.In one embodiment, described arm 601 and 602 is configured to have protuberance 619 and 620, the function of described protuberance 619 and 620 for: interact to be fixed on releasedly in described conduit lining by described needle guard 600 with the similar mode described in Figure 38 with one or more inner feature of conduit lining.

According to some embodiments, Part I and the elongated member 652 of described needle guard 600 construct with being integrally formed.

As mentioned above, Figure 38 is the side view being in the safe vein injection catheter assembly 700 of the position being ready for operation according to an embodiment.Described assembly 700 comprises and has pin 130, and described pin 130 has needle point 134 and proximally 140 inner chambers extending to described needle point 134 of sharp-pointed far-end.As previously mentioned, the profile variations place 132 on shank plays a part described needle guard 100 backstop at described second axial location.The proximal part of described pin 130 is attached to be had on the Needle sleeve 704 of near projections 706, with attached convex female Luer (luer fitting).The proximal part 140 of described pin 130 is arranged in the flash back chamber 708 of described Needle sleeve 704.As discussed earlier, by protuberance 117 and 116 and the joint being positioned at the one or more features 703 on the inwall of described conduit lining, described needle guard 100 is releasably secured in described conduit lining 702.The near-end of described conduit lining 702 engages effectively with the far-end of described Needle sleeve 704.Far-end distally extends and ends at the near-end of described needle point 134 from being the conduit lining 702 of coaxial relation with described pin 130 for the conduit 710 of tubulose, and this makes described needle point be exposed with piercing blood vessel and makes described conduit 710 enter described blood vessel.In use, suitably enter on the basis of the blood vessel of patient at described conduit 710, described Needle sleeve 704, by proximally pull, is recalled to make described needle point 134 and enters described needle point sleeve 100 in patient body.Along with pin is removed, by the outside power applied by described protuberance 117 and 116, described needle guard 100 is fixed in described Needle sleeve 702.Substantially at described profile variations place 132 by while backstop is on described needle guard, position and the size characteristic of described needle guard 100 at the profile variations place 132 on described pin 130 combine to make the needle point 134 of described far-end to be completely enclosed in described elongated member 152.Enter on the basis of the far-end of described elongated member 152 at the needle point 134 of described far-end, described Distal arm portion 107 and 108 is departed from described shank by the energy stored in described arm 101 and 102 and is pushed inwardly to cover the far-end 156 of described elongated member.Meanwhile, described protuberance 116 and 117 and described conduit lining depart to allow described needle guard 100 and described pin 130 fully to be removed from described conduit lining 702.

Figure 39 and Figure 40 shows the intravenous injection catheter assembly 800 according to another embodiment.Described assembly 800 is similar with above-mentioned assembly 700.Difference is that described needle guard 100 is releasably secured the mode in conduit lining 802.In described assembly 800, the elastic protrusion portion 810 and 811 being located on or near the bottom of described needle guard 100 instead of forming in described arm 101, protuberance 117 on 102, the use of 118, described elastic protrusion part 810 and 811 is protruding with one or more features 803 of the inwall engaging described conduit lining 802.Preferably, the outer engagement surfaces of described jut 810 and 811 is arc consistent with the curvature of the inwall with described conduit lining 802.Described one or more features 803 can comprise recess, otch, hole, groove, prominent features portion etc., and these features described are configured to around inwall circlewise or for segmentation.When described assembly 800 is in ready position or during described pin 130 is retracted in described needle guard 130, described elastic protrusion portion 810 and 811 is configured to apply outside power and engages with described one or more features 803 to make described composition surface.When power is to the inside applied to needle guard by the profile variations place 132 engaged with needle guard stopper section of pin, the engaging force of jut 810 and 811 is little of being enough to allow jut to depart from (see Figure 40) from one or more features 803.

Figure 41 shows the Needle hub assembly 900 being positioned at protective position on Huber pin (Huber needle), described Huber pin with the axis of change or near the bending section of far-end of pin 190 for feature.Described Needle hub assembly 900 is similar with the Needle hub assembly in the embodiment of disclosure and description above in many aspects; but difference is: along with described pin 190 is reduced to the protective position in described elongated member 952, the inner passage running through elongated member 952 extension is configured to allow the distal portions 958 of described elongated member arrange around the change of axis and tilt.In one embodiment, the proximal part 960 of described elongated member 952 is configured to have the part that the suitable internal diameter of length reduces, the part that described internal diameter reduces by described injection cover backstop in axis change place.In other embodiments, the sleeve that the internal diameter with sufficient length reduces is attached to or is otherwise connected on the near-end of described elongated member 952.In other embodiments, described profile variations place or enlarging section are positioned at the effect that stop has been sentenced in axis change.

Figure 42 A and Figure 42 D shows the intravenous injection catheter assembly 210 according to another embodiment.Intravenous injection catheter assembly 210 is with the difference of the intravenous injection catheter assembly 700 of Figure 38, when needle guard 100 is in ready position, elastic arm 101, the distal portions 107,108 of 102 not against shank 131 but such against elongated member 212 as shown in Figure 42.As shown in Figure 42 D, in one embodiment, elongated member 212 comprises the proximal part 216 of distal portions 214 and reduced.The external diameter of proximal part 216 is little of being enough to be located in the hole 119 in bottom 118, and the external diameter at least partially closest to proximal part 216 of distal portions 214 is greater than the diameter in hole 119.As will be described in further detail below, the external diameter at least partially of proximal part 216 is enough to allow the bottom 118 of alligator clamp 220 axially to slide along the length of proximal part 216.

As shown in Figure 42 A and 42B, at ready position, the bottom 118 of alligator clamp 220 is positioned on the proximal part 216 of the reduced of elongated member 212 in the position near distal portions 214, is provided with distance D1 and axially advances with 118 proximal parts 216 diametrically reduced bottom allowing.In certain embodiments, when when ready position, by lip portion 111,112 with one or more joint being positioned at the recess 217,218 of the proximate distal ends of elongated member 212, the axial location of alligator clamp 220 on elongated member 212 is releasably secured.In other embodiments, the far-end that other mating features is arranged on elongated member 212 engages for lip portion 111 and 112, to help to limit the axial location of alligator clamp 220 on elongated member 212 and angle position when ready position.In certain embodiments, recess 217,218 hinder or restraining spring is clipped in the ability that elongated member 212 rotates, to maintain elastic arm 101,102 with the correct orientation of the far-end of elongated member.In certain embodiments, be only provided with single recess (or other single limited features portion) at the proximate distal ends of elongated member 212 and limit the position of alligator clamp on elongated member.

In certain embodiments, as shown in Figure 52, the mating features on elongated member comprises the annular ring 213 with proximal shoulder 222, lip portion 111, and the top of 112 rests on described proximal shoulder 222.In one embodiment, as in figure 52, the planar tilt run through by endless loop 213 is in the longitudinal axis of elongated member.In further embodiments, elongated member comprises the far-end 223 roughly orthogonal with the longitudinal axis of elongated member.In this embodiment, as shown in Figure 53, also can be arranged to by the plane that endless loop 224 runs through the longitudinal axis favouring elongated member.In the embodiment of Figure 52 and Figure 53, endless loop can by independently the first bossing and the second bossing replace, described first bossing and the second bossing angularly and are longitudinally positioned to corresponding engagement lips 111 and 112 on the surface of elongated member.In the accompanying drawings in other embodiment unshowned, protruding features portion on the surface of elongated member is formed for holding lip portion 111, the pocket of 112, to hinder the axially-movable of alligator clamp 220 on elongated member and rotary motion when alligator clamp is in ready position.

As discussed earlier, by protuberance 116 and 117 and the joint being positioned at the one or more features 703 on the inwall of described conduit lining 702, described alligator clamp 220 is releasably secured in described conduit lining 702.The near-end of described conduit lining 702 engages effectively with the far-end of described Needle sleeve 704.Far-end distally extends and ends at the near-end of described needle point 134 from being the conduit lining 702 of coaxial relation with described pin 130 for the conduit 710 of tubulose, and this makes described needle point be exposed with piercing blood vessel and makes described conduit 710 intravasation.In use, suitably enter on the basis of the blood vessel of patient at described conduit 710, described Needle sleeve 704, by proximally pull, is recalled to make described needle point 134 and enters described needle guard in patient body.Along with pin is retracted, needle guard is by protuberance 116,117 outside power applied and be fixed on the inside of conduit lining 702, simultaneously, alligator clamp 220 is axially retained on elongated member 212 by being positioned at the inside power of corresponding antelabium 111 and 112 applying of recess 217 and 218.When the profile variations place 132 of pin 130 by backstop when the inside of elongated member 212, the pull of proximad continued on Needle sleeve 704 makes the bottom 118 of alligator clamp 220 distad move in the part of the reduced of elongated member 212, until bottom 118 is against shoulder/protuberance 219 or the proximal end similar portions of distal portions 214 being positioned at elongated member 212.(in further embodiments, as shown in Figure 54, the stopper section 219a of annular ring form extends from the outer surface radial direction degree of the distal portions 21 of elongated member 212, so that the axial advancement of restraining spring folder 220 on elongated member 212.) meanwhile, the power M that the pull of proximad applies is enough to cause lip portion 111 and 112 skid off their respective recesses 217 and 218 and distad advance, and makes the Distal arm portion 107 and 108 of alligator clamp 101 and 102 advance and exceed the far-end 221 of elongated member 212.In one embodiment, the far-end 221 that the whole distally advance of bottom 118 on the proximal part 216 of elongated member 212 and pin 130 enter elongated member 212 occurs roughly simultaneously.Meanwhile, described protuberance 116 and 117 and described conduit lining depart to allow described needle guard fully to be removed from described conduit lining 702.In assembly shown in Figure 42 C, the distal needle 134 of pin 130 is securely affixed at the elongated member 212 of needle guard inner.

In one embodiment, as shown in Figure 43 A to 43D, when the profile variations place 132 of pin 130 by backstop when the inside of elongated member 212, alligator clamp 220 is suitable for the power of the proximad by being applied to Needle sleeve 704 and is elongated.Described elongation betides the moment of the shoulder/protuberance 219 of the bottom 118 engagement elongate parts 212 of alligator clamp 220 at first or occurs before that moment.As shown in Figure 43 B, cause the generation of elongation due to the resistance between alligator clamp 220 and the features on conduit lining 702 703.Initial elongation indicates by explaining L1 in Figure 43 B.In the embodiment of Figure 43, when the bottom 118 of alligator clamp 220 engages shoulder/protuberance 219, the axial advancement of alligator clamp in the reduced part of elongated member 212 is by himself being not enough to make lip portion 111 and 112 advance to the far-end 221 covering elongated member.This instead of the combination of the elongation (being indicated by the note L2 in Figure 43 C) of the axial advancement of bottom 118 on the near-end of elongated member 212 and alligator clamp 220, and described combination causes lip portion 111, and 112 advance and exceed the far-end 221 of elongated member.Alligator clamp 220 is activated the far-end 221 covering elongated member 212, rely on the elongation of the alligator clamp between the starting period, the distal portions 117 of elastic arm 101 applies additionally downward power by the far-end 221 of elongated member, because elastic arm is flexibly attempted to present the length shorter than L2.This is closed and achieves the accommodating of the reinforcement of far-end 134 in elongated member 212 of pin 130.

In another embodiment, as shown in Figure 44 A to 44D, elongated member 230 is not configured with the part 216 of reduced.Alternatively, at ready position, the bottom 118 of alligator clamp 220 is against bottom 118 inner surface, or the bottom 118 of alligator clamp 220 is fixed in the proximal end of elongated member 230 or near proximal ends.According to this embodiment, the size of alligator clamp 220 and material characteristics and the power be applied between protuberance 116 and 117 and the wall features 703 of conduit lining 702 are selected to: make the elongation of alligator clamp 220 self cause lip portion 111,112 advance and cover the far-end of elongated member 230, needle point 134 is contained in the inside of elongated member safely.Figure 44 A to Figure 44 D shows the bottom 118 of the pin folder 220 being attached to elongated member 230, and wherein, the proximal part 232 of elongated member 232 extends through the hole 119 of bottom.Figure 45 A to Figure 45 D illustrates an alternate embodiment, and wherein, elongated member 230 (having shorter length) is integrally arranged in the distally of bottom 118.In this embodiment, the end 236 of elongated member 230 can be attached to bottom 118 or can only against bottom 118.

In certain embodiments, the bottom 118 of alligator clamp 220 moves to cause enabling of Needle hub assembly along the proximal part of elongated member, content as escribed above in conjunction with Figure 42 and Figure 43, substituting elongated member structure is considered.Such as, in the embodiment of Figure 42, by the lip portion of alligator clamp 111,112 and the recess 217 of proximate distal ends being positioned at elongated member, the interaction between 218, the axial location of alligator clamp 220 on elongated member 212 is maintained at ready position.In other embodiments, by the bottom 118 of alligator clamp and the interaction of the proximal part of elongated member 212, alligator clamp fully or is at least in part remained on ready position.In certain embodiments, by the bottom 118 of alligator clamp and the interaction of the proximal part of elongated member 212, alligator clamp is fully remained on ready position, then the recess 217,218 on the distal portions of elongated member or other limit features portion are not necessarily.

In embodiment shown in Figure 46, one or more bossing 238 around the reduced of elongated member 212 proximal part 216 circumferentially.The size of one or more bossing 238 makes the hole 119 in the bottom 118 of itself and alligator clamp 220 interact, to hinder the axial advancement distad of bottom 118 on proximal part 216 until apply enough large power to overcome resistance between the circumferential area in hole 119 and one or more bossing 238.In certain embodiments, the power that the part defined hole 119 of bottom 118 can be applied thereto based on one or more bossing 238 and being out of shape, is advanced to contribute to hole 119 during proximad pull at elongated member and exceedes one or more bossing 238.In certain embodiments, one or more independently bossing 238 substitute by the annular ring of projection.

In further embodiments, by using the annular recess 254 be positioned on the proximal part of elongated member, alligator clamp 220 is remained on elongated member at ready position at least in part.Figure 47 shows the elongated member 250 of the proximal part 252 with distal portions 251 and reduced.The diameter of the proximal part 252 of reduced is greater than the diameter in the hole 119 in the bottom 118 of alligator clamp 220 usually.Within the proximal part 252 being positioned at reduced is annular recess 254, and the size of described annular recess 254 can hold the part defined hole 119 of the bottom 118 of alligator clamp 220.The part completely or partially defined hole 119 of bottom 118 has enough elasticity, to allow the enlarged-diameter in hole 119 when alligator clamp 220 is loaded onto the proximal part 252 of elongated member 250 at first.Bottom 118 to the part that hole 119 is defined, also there is enough elasticity, allow the enlarged-diameter in hole 119 during to be applied in enough large power on bottom 118 and move out annular recess 254 and proximal part 252 along the reduced of elongated member 250 distad advances.The advantage of this structure is: when alligator clamp 220 is activated the far-end 225 covering elongated member 250, and the bottom 118 of alligator clamp 220 coordinates make alligator clamp 220 on elongated member 250 move axially and move radially to be obstructed or to be minimized with the extruding between proximal part 252.

Figure 48 shows the elongated member 260 similar to the elongated member 250 of Figure 47, and wherein, elongated member 260 has annular recess 264, and described annular recess 264 is for holding the part defined hole 119 of bottom 118.Difference between elongated member 260 and elongated member 250 is, elongated member 260 has roughly uniform cross section along its length.

Figure 49 A shows the elongated member 270 according to another embodiment.Elongated member 270 has distal portions 271 and proximal part 272.Proximal part 272 comprises proximal part 273 and the frusto-conical portions 274 of reduced, and the diameter of described frusto-conical portions 274 transits to the larger diameter at its far-end 276 place from the diameter dimension reduced of its near-end 275.In one embodiment, the diameter at described far-end 276 place at least equals the diameter of the distal portions 271 of elongated member 270.As shown in Figure 49 B, in one embodiment, alligator clamp 220 is assembled on elongated member 270, make the proximal part 273 of reduced extend through bottom 118 in hole 119.In certain embodiments, the diameter in hole 119 is only slightly larger than the external diameter of proximal part 273.In further embodiments, the diameter in hole 119 and the external diameter of proximal part 273 are selected such that to produce frictional fit between the edge and the outer surface of proximal part 273 in hole 119, allow the sliding relation between the edge in hole 119 and the outer surface of proximal part 273 by frictional fit.In further embodiments, before together with being assembled into elongated member 270 by alligator clamp 220, the diameter in hole 119 is less than the external diameter of proximal part 273.With to aforementioned similar mode, in this embodiment, the part at least completely or partially defined hole 119 of bottom 118 is deformable (plasticity and/or elastic), to allow the external diameter of the diameter in hole 119 and proximal part 273 to match.The material of bottom 118 and proximal part 273 and size characteristic allow the sliding relation by applying minimum axial force to realize between bottom 118 and proximal part 273.

In one embodiment, at ready position, the bottom 118 of alligator clamp 220 is positioned at near-end 275 place of frusto-conical portions 274, and in further embodiments, bottom 118 is positioned at (as shown in Figure 49 C) on proximal part 273.In use, suitably enter on the basis of the blood vessel of patient at described conduit 710, described Needle sleeve 704, by proximally pull, is recalled to make described needle point 134 and enters described needle guard in patient body.Along with pin is retracted, needle guard is by protuberance 116,117 outside power applied and be fixed on the inside of conduit lining 702, simultaneously, alligator clamp 220 is axially retained on elongated member 270 by bottom 118 and the interaction of the proximal part 272 of elongated member 270.When the profile variations place 132 of pin 130 by backstop when the inside of elongated member 270, by means of the deformability characteristics as above of bottom 118, the power M being applied to the proximad continued of Needle sleeve 704 causes the bottom 118 of alligator clamp 220 distad to proceed on frusto-conical portions 274.In one embodiment, bottom 118 distad advance until arrive the far-end 276 of frusto-conical portions 274 or the near-end of distal portions 271 constantly.Just it is arrived in bottom before the position of the farthest side of the proximal part 272 of elongated member 270 or simultaneously, the distal needle of pin 130 enters elongated member 270 completely and the lip portion 111 and 112 of alligator clamp 220 is advanced and exceeded the far-end 278 (as shown in Figure 49 D) of elongated member, so that part needle point 134 is fixed within elongated member safely.The advantage of this structure is: when alligator clamp 220 is activated the far-end 278 covering elongated member 270, and the extruding between the bottom 118 of alligator clamp 220 and the far-end 276 of frusto-conical portions 274 coordinates make alligator clamp 220 on elongated member 270 move axially and move radially to be obstructed or to be minimized.

Elongated member 280 shown in Figure 50 has the structure similar to elongated member 270.Difference is, comprises the stopper section 284 be positioned near distal portions 274 place or distal portions 274.Stopper section 284 can be the form of annular ring as shown in Figure 50, maybe can comprise the bossing of one or more peripheral distribution around elongated member 280.The diameter of stopper section 284 is greatly to being enough to stop utterly bottom alligator clamp 118 to advance beyond this stopper section.

Elongated member 290 shown in Figure 51 is similar to elongated member 270, except whole nearside distal portions 272 constructs in frustum.

According to some embodiments, as shown in Figure 55 A, the proximal part of elongated member is equipped with one or more elongated radial direction and extends protuberance 295 (only on the protuberance shown in Figure 55 A).In this embodiment, as shown in Figure 55 B, the hole 119 in the bottom 118 of alligator clamp 220 has corresponding for holding depression or the recess 296 of described one or more radial protuberance 295.Multiple structure is all possible.Bottom 118 mesopore 119 proximal part of elongated member being inserted into alligator clamp 220 achieves multiple advantage.First, during operation, along with before alligator clamp is on elongated member and then hinder the rotation of alligator clamp 220 on elongated member.Secondly, during manufacture/assembling process, be easy to alligator clamp to be oriented in suitably on elongated member.3rd, can prevent alligator clamp and elongated member from being matched undeservedly at assembly process.According to an embodiment, the length of described one or more radial protuberance 295 is selected to: make to prevent alligator clamp 200 from whenever rotating on elongated member.That is, when needle guard is in SBR and initiate mode.In further embodiments, the length of described one or more radial protuberance 295 is selected to shorter, make to allow the rotary motion of alligator clamp 220 on elongated member when needle guard obtains initiate mode, and when needle guard be in SBR or from SBR to initiate mode transition time hinder described rotary motion.

Figure 56 A and Figure 56 B illustrates another kind of infix form, and Figure 56 A shows the elongated member with planar side 296, and Figure 56 B illustrates the bottom 118 with hole 119 of alligator clamp 220, and the cross section of described hole and elongated member matches.

As mentioned above, according to some embodiments, when causing the enlarged-diameter in hole 119 when the distal portions effect being subject to elongated member, bottom 118 distortion at least partially of alligator clamp 220 occurs.In further embodiments, as shown in Figure 57 A, bottom 118 comprises multiple deformable protuberance 298 along the circumference of opening 119.Material and the size characteristic of protuberance 298 are selected to: when being acted on over the projections by proximally pull along with elongated member by the part selected of proximal part of elongated member, and the bending of this protuberance and/or extruding are produced.Such as, in the embodiment of Figure 49, the bottom 118 of Figure 57 A can be used for obtaining similar result.Starting point is, slides, until bottom meets with the near-end 275 of frusto-conical portions 274 along the proximal part 272 of elongated member 270 in the diameter permission bottom 118 that the size of protuberance 298 makes the circle on the summit connecting these protuberances have.Preferably, but not necessarily, be provided with circumference equidistantly isolated three or more the protuberances 298 of surrounding hole 119, to contribute in the assembling of device and the orthogonality relation between the operating period between maintenance bottom 118 and the longitudinal axis of elongated member 270.In other words, bottom is maintained better relative to axially aligning of elongated member.Between time suitable to moulding, the power M being proximally applied to Needle sleeve 740 causes the bottom 118 of alligator clamp 220 distad to be promoted at frusto-conical portions 274.Applied force causes deformable protuberance 298 to be out of shape (that is, by extruding and/or bending), to allow bottom 118 to advance along the outer surface of frusto-conical portions 274, until bottom arrives far-end 276, and at far-end 276 place by backstop.In other side, needle assembly is so that also composition graphs 49A to Figure 49 D mode is similar to above-mentioned.

In further embodiments, as shown in Figure 57 B, obtain the ability (ability in some cases for reducing) of the expansion in hole 119 by comprising one or more slit 299 be cut in bottom 118.Except in the embodiment being suitable for being used in such as Figure 49 A to Figure 49 D, be particularly useful when the hole, bottom 118/ 119 of Figure 57 A and Figure 57 B is configured in ability (by expanding or shrinking) that the adaptation diameter by means of hole 119 changes and combines with the elongated member shown in Figure 46 to Figure 48.

Figure 58 A to Figure 58 C shows the elongated member 301 according to another embodiment.For the object simplified, these figures only show elongated member 301 and not shown alligator clamp.Figure 58 A is the isometric view of independent described elongated member 301.Figure 58 B shows the elongated member 301 be arranged at ready position on shank 131.Figure 58 B shows, after Needle hub assembly has been activated and the distal needle 134 of pin 130 is positioned at the inside of elongated member 301 completely, and the elongated member 301 on shank 131.Elongated member 301 and the distinguishing characteristics before between those disclosed elongated member are, comprise the seal member 302 being arranged in far-end or proximate distal ends.After distal needle is fully retracted to elongated member, the distal needle 134 of pin 130 is advantageously sealed in the inside of elongated member 301 by seal member 302.This being furnished with is beneficial to the accommodating of body fluid, and described body fluid can flow from needle point 134 after it is introduced in elongated member 301 inside.

Seal member 302 can comprise the form of any kind.In one embodiment, as shown in the figure, seal member 302 comprises the elasticity insertion section 303 of the inside of the far-end being arranged in elongated member.In certain embodiments, the external diameter of elasticity insertion section 303 is greater than the internal diameter of the far-end of elongated member 301.In this embodiment, the extruding force of the inwall to elongated member that applied by elasticity insertion section of elasticity insertion section 303 and be maintained at the inside of elongated member 301.In further embodiments, use bonding or bonding to replace above-mentioned attachment method, or bonding or bonding and above-mentioned attachment method use in combination.In further embodiments, seal member comprises spring caps 305, as shown in Figure 59, described spring caps 305 stretch ground exceed elongated member 301 outside and on the outside being positioned at elongated member 301.In certain embodiments, use bonding or the above-mentioned stretching attachment method of hot sticky incompatible replacement, or bonding or heat bonding and above-mentioned stretching attachment method use in combination.

In the embodiment of Figure 58 and Figure 59, the slit 304 that diametric(al) is traversed the face of seal member 302 is conducive to pin 130 through seal member.Also can imagine the features except self-closing slit.As shown in Figure 58 B and 58C, the distal needle 134 of pin 130 is in the position of inside being positioned at the elongated member 301 that slit is closed.In certain embodiments, the far-end of elongated member 301 comprises elongated distal portions 306, and described elongated distal portions 306 is for holding or being conducive to seal member 302 being attached to elongated member (as Figure 58 with as Suo Shi 59) in other side.In the embodiment of Figure 59, become large distal portions 306 and be provided with proximal annular rim shoulder 307, the proximal part of spring caps 302 can rest on described proximal annular rim shoulder 307.The shell on distal portions 36 of spring caps 305 provides the fixing of the reinforcement of spring caps on elongated member.

To in the aforementioned explanation of Figure 42 to Figure 49, describe the Needle hub assembly comprising spring clip portions and elongated member part be limited within the scope of intravenous injection catheter.But, it is to be appreciated that the needle assembly of Figure 42 to Figure 59 can combine with the pin product of other type multiple, and the pin product of described other type multiple includes but not limited to syringe, guide wire introducer, blood collection device etc.In some cases, what the pin product of these other types and intravenous injection catheter are mutually distinguished is following mode, and namely needle assembly advances on shank.Such as, in some cases, the mechanical driving force making Needle hub assembly advance along shank is directly provided by the hands of user, spring, compressed air or other thrust unit.In Figure 42 to Figure 59 shown before, disclosed alligator clamp comprises the first elastic arm and the second elastic arm 101 and 102.But it is important to note that the folder structure of any kind is all possible, such as, single armed folder as shown in Figure 18,19 and 24.In addition, as the embodiment of hereinafter Figure 60 A and Figure 60 B, except elasticity, the arm of folder can rely on other device to close on the far-end of elongated member.A lot of features relevant to alligator clamp and elongated member of also answering emphasis it is noted that herein disclosed in (above or hereinafter) can exchange and/or combine, to formulate diversified needle assembly and safty pin product.

Figure 60 A-Figure 60 C shows the guide wire introducer according to another embodiment.Guide wire introducer 360 comprises pin 361, and the near-end of described pin 361 is fixed on the inside of Needle sleeve 364.Pin comprises profile variations place 362 at it on the far-end of the distal needle of pin.When in the ready position, Needle hub assembly is positioned at the inside of housing 367, and described housing 367 is attached to Needle sleeve 364 in its proximal end.Needle hub assembly comprises Part I 370 and Part II 380.Part I 370 comprises the middle part of the bar only partly defining pin 361.Part II 380 is positioned within described middle part, the form of the cylindrical elongate parts of Part II 380 in Perfect Ring cast-over bar.In one embodiment, the near-end of elongated member 380 comprises protruding endless loop 381, and the endless loop 381 of described projection is installed in the annular recessed portion 373 of the bottom of Part I 370 so that elongated member 380 is fixed to Part I 370.In one embodiment, Part I 370 comprises the molded plastic structure with the arm 371 distad extended from hinged bottom.Arm 371 has distal portions 372, distal portions 372 is configured to: when Needle hub assembly is in ready position, (see Figure 60 A) is against the bar of pin 361, and (see Figure 60 B) covers the far-end of elongated member 380 when Needle hub assembly is activated.When in the ready position, Needle hub assembly 370 is remained on the inside of housing 367 by the holding device (not shown) of the power applied by opposing helical spring or other elastic construction, and described helical spring or other elastic construction were positioned at it and distad promote needle guard when holding device discharges.In the example of Figure 60 A and Figure 60 B, the near-end of spring 374 is attached to the bottom of housing 367, and a part of surrounding molded plastic structure 370 at least partially for its far-end, described besieged part comprises arm 371 at least partially.In use, when needle guard is discharged from holding device, Compress Spring 374 is distad expanded with driven forward shank, until the distal needle 363 of pin 361 is positioned at the inside of elongated member 380 completely.Except except pin 361 driven forward needle guard, spring 374 also acts on compressively with radially pusher arm 371 inwardly on arm 371, thus makes the distal portions 372 of arm cover the far-end of elongated member 380.

In further embodiments, the Part I 370 of needle guard and Part II 380 comprise and above or hereinafter disclosed alligator clamp and the similar or identical alligator clamp of elongated member and elongated member.In these embodiments, spring 374 can be disposed in the below of the bottom 118 of alligator clamp, thus is oriented to distad promote alligator clamp along shank.

Needle hub assembly shown in Figure 62 A to Figure 62 D is similar to the Needle hub assembly illustrated in such as Fig. 6 to Figure 10, Figure 20 to Figure 23 and Figure 26 to Figure 29.Figure 62 A and Figure 62 B is respectively at folded elastic arm 422 and 423 to form top view and the side view of the needle guard before alligator clamp.In Figure 62 A and Figure 62 B, the elongated member 430 illustrated upwards extends from bottom 118.As mentioned above, elongated member 430 can comprise the part of separating with Part I, and elongated member 430 relies on this part to be attached to bottom 118 or is only seated against the far-end of bottom 118 and elastic arm 422,423.Tractive technique described before elongated member 430 also can utilize is formed by Part I 420.For above-disclosed guide wire introducer 360, required in some cases, needle guard is distad promoted to make it to present it along the bar of pin and is enabled position.In the embodiment shown in Figure 60 A to 60C, helical spring 374 self separates in folder and provides described motive force.In the Needle hub assembly of Figure 62 A to Figure 62 D, spring assembly is not formed dividually with folder, but is formed by with self identical materials in storage of folder.In other words, spring assembly is integral with folder.As shown in Figure 62 A and 62B, elongate projection 440 extends from the sidepiece of bottom 118 and is configured with multiple elongated hole 441 of longitudinally aiming at.Be similar to elastic arm 422 and 423, protuberance 440 also have elasticity with protuberance 440 linearly 433 folded time formed spring 422 (as shown in Figure 62 C and Figure 62 D) protuberance 440 bottom 445 in hole 446 aim at hole 441, Needle hub assembly can be loaded onto on shank when protuberance is folded.Such as, in the guide wire introducer shown in picture Figure 60, the bottom 445 of protuberance 440 can be attached to the bottom of housing 367.When needle guard is in ready position, the spring formed is compressive state and acts on bottom 118 in housing 367, distad promotes with the far-end promoted along shank towards pin the needle guard comprising alligator clamp 421 and elongated member 430.When needle guard is discharged from housing 367, spring 422 distad promotes needle guard until the distal needle of pin is positioned at the inside (as shown in Figure 62 C and 62D) of elongated member 430 completely.

In further embodiments, elongate projection 440 is only as the tethers (tether) limited the advance of needle guard on shank.And in further embodiments, protuberance for the formation of spring 442, and for serving as restraint device to limit needle guard advance distad on shank.

Figure 63 A-Figure 63 D shows the needle guard 510 according to another embodiment.Needle guard can by the material manufacture with elastic general flat, and needle guard has and the same or analogous structure shown in Fig. 6 A, 6B, 20,26 and 32.For purposes of illustration, the identical parts shown in Figure 63 A-Figure 62 D have employed the Reference numeral identical with Fig. 6 A.But answer emphasis it is noted that its structure be not limited in any form Fig. 6 A, 6B, 20,26, the structure shown in 32 and 42.

As shown in Figure 63 A, in cutting or punching press structure, needle guard is equipped with the first elongated biasing member and the second elongated biasing member 513 and 514.In one embodiment, the first elongated biasing member and the second elongated biasing member 513 and 514 are roughly relatively located and are basically parallel to the first elastic arm and the second elastic arm 101 and 102 respectively.The far-end 515 of at least the first biasing member 513 and longitudinally aiming at least partially of the second elastic arm 102, make the far-end 515 when needle guard 510 is formed and is arranged on pin 130 abut the second elastic arm 102 (see Figure 63 B) to produce biasing force, described biasing force (together with the biasing force that the second elastic arm 102 is intrinsic) contributes to the bar 131 of promotion second elastic arm 102 against pin 130.In an identical manner, the far-end 516 of the second biasing member 514 is aimed at the longitudinal at least partially of the first elastic arm 101 at least partially, make the far-end 516 when needle guard 510 is formed and is arranged on pin 130 abut the first elastic arm 101 (see Figure 63 B) to produce biasing force, described biasing force (together with the biasing force that the first elastic arm 101 is intrinsic) contributes to the bar 131 of promotion first elastic arm 101 against pin 130.

And Figure 63 B and 63C illustrates that the needle guard being in ready position is activated to cover the distal needle 134 of pin 130, Figure 63 D illustrates the needle guard being in initiate mode, wherein, described needle guard by backstop in the profile variations place 132 of shank 131 and elastic arm 101, the far-end 107,108 of 102 is arranged to exceed distal needle 134.As shown in Figure 63 D, when needle guard is in initiate mode, biasing member 513, the far-end 515,516 of 514 constantly with arm 101,102 engage.Advantageously, described in be bonded to and help arm 101,102 maintain it enables position and resists outside power, is covered described outside power be suitably just applied to arm 101, on 102 once needle point 134.

Backstop and/or engagement feature can be integrated into arm 101,102 and/or biasing member 513 on, or backstop and/or engagement feature can be integrated into arm 101,102 and/or biasing member 513 among, make needle guard be its enable position time contribute to biasing member 513,514 maintain arm 101, on 102.Figure 64 to Figure 68 shows the example of described features.In the accompanying drawings in more unshowned embodiments, by along arm 101, the track at least partially of the length of 102 comes at arm 101, and to biasing member 513 on 102, the far-end 515 of 514,516 guide.In the embodiment of Figure 64, otch/recess 531 and 532 is arranged in the inner circumferential of arm 101 and 102 respectively.In use, at least when needle guard 530 is in initiate mode (as shown in Figure 64 B), laying respectively at least partially in recess 532 and 531 of the far-end 515 and 516 of biasing member, to contribute to arm 101 and 102 being maintained suitable position and thus to cover the distal needle 134 of pin 130.In one embodiment, as shown in Figure 64 C (linearly the sectional view of A-A), the inward flange of arm 101 and/or 102 by bending to form strongback and thus to provide additional rigidity to arm.In the embodiment of Figure 65, protuberance/shoulder 534,535 is formed on arm 101 respectively, on the inward flange of 102, and the inward flange abutting described arm 101,102 at least partially when needle guard 540 is in initiate mode of the far-end 516 and 517 of biasing member 514 and 513.In one embodiment, at least the far-end 515 and 516 of biasing member 513 has the width dimensions W1 larger than the width dimensions W2 of arm 101 and 102.In the embodiment of Figure 66 A to Figure 66 C, each in arm 101 and 102, along punching press depression 551a, the 551b at least partially with a pair longitudinal layout of its length, makes recess 552 be present between described depression.As shown in Figure 63 D, at least when needle guard is in initiate mode, biasing member 513,514 be positioned at least partially within recess 552.In the embodiment of Figure 67 A and Figure 67 B, the protruding features portion 555 be positioned on the outside of each of arm 101 and 102 provides a surface, biasing member 513, the far-end 515,516 of 514 at least partially when needle guard is in initiate mode (as shown in Figure 67 B) lean on said surface.In the embodiment of Figure 68 A and Figure 68 B, arm 101, each in 102 configures porose 556, and described hole 556 is suitable for accommodation and is formed in biasing member 513, the far-end 515 of 514, the jut 557 on 516.As shown in Figure 68 B, at least when needle guard be in enable position time, jut 557 is positioned within hole 556.

Figure 69 A to Figure 69 C shows the needle guard similar with the needle guard shown in Figure 37 B to Figure 67 A.Difference is the structure of the far-end of biasing member 514.As shown in Figure 69 A and 69B, ledge or jut 518 distally 516 radially extend internally, and are configured to: when needle guard is its initiate mode, (as shown in Figure 69 B and 69C) covers the inclined-plane 136 of pin 130 at least in part.

As the embodiment of Figure 24, the needle guard merging the feature of biasing member only can also comprise the arm 101 that is suitable for the distal needle covering pin.As shown in Figure 70 A and Figure 70 B, in this embodiment, arm 102 part 560 place stop and needle guard does not have biasing member 513.As aforesaid embodiment, biasing member 514 is set to act on the outer surface of arm 101.

Biasing member can also be integrated into and comprise (as shown in Figure 71) in the needle guard of elongated member.The needle guard 400 that the example of Figure 71 shows Figure 30 has the version of biasing member 513 and 514.

Many exemplary embodiments are disclose and described herein.But need to understand, the present invention never should be understood to be limited to described example.

Claims

1. a safety needle device, comprising:

Pin, described needle set has shank and distal needle, and described shank has profile variations place near described distal needle;

Needle guard, described needle guard changes between SBR and initiate mode, at described SBR, the distal needle of described pin is in unprotect state, in described initiate mode, the distal needle of described pin is in guard mode, described needle guard comprises the arm distad extended from bottom, be shaped in described bottom porose, described needle guard is slidably mounted on described shank, described shank is through the described hole formed in described bottom, described arm comprises elastomeric material and has proximal part, middle part and distal portions, described needle guard comprises elongated member further, described elongated member is from the position of described bottom or distad extend close to the position of described bottom, and along with described needle guard moves at ready position and enabling between position, described elongated member can move along the side of described shank, described elongated member has near-end, far-end and the through passage extended between the near-end and far-end of described elongated member, being positioned at or making described Part I engage to limit described pin with the profile variations place of described shank close to the size of the Part I of the near-end of described elongated member of described through passage is moved relative to described needle guard proximad, the length that described elongated member has makes when described profile variations place engages the Part I of described through passage, the whole distal needle of described pin is positioned at the through passage of described elongated member, described elongated member comprises proximal part and distal portions, the proximal part of described elongated member is arranged in the hole of described bottom, and can slide between primary importance on the proximal part of described elongated member when described needle guard is in described SBR and the described needle guard second position away from described primary importance when being in described initiate mode in described bottom, when needle guard is in described SBR, the distal portions of described arm is positioned on the distal portions of the far-end close to described elongated member of described elongated member, the distal portions of described arm at least partially at the far-end of described elongated member against the outside of described elongated member, described needle guard is configured to make along with it is converted to described initiate mode from described SBR, described bottom is relied on to make the distal portions of described arm to move to the far-end of described elongated member along the distally, lateral of described distal portions from described primary importance to the movement of the described second position, the distal portions of described arm be radially moved at the far-end of described elongated member be positioned at described elongated member at least in part far-end on, described elongated member is enough hard so that pin described in limit is relative to the lengthwise movement of described needle guard on the far-end being positioned at described elongated member at the distal portions of described arm at least in part.

2. safety device according to claim 1, wherein, has shoulder between the proximal part and distal portions of described elongated member, to limit the movement distad towards the described second position on described elongated member of described bottom.

3. safety device according to claim 1, wherein, the proximal part of described elongated member is furnished with radial extension component, to limit the movement distad towards the described second position on described elongated member of described bottom.

4. safety device according to claim 1, wherein, the distal portions of described elongated member comprises recess, when described needle guard is in described SBR described arm distal portions be arranged in described recess at least partially.

5., wherein, there is frictional fit between the proximal part of described hole and described elongated member in safety device according to claim 1, described frictional fit is enough to allow described bottom to be moved along the surface of described proximal part.

6. safety device according to claim 1, comprises the recess in the outer surface of the proximal part of described elongated member further, and when described needle guard is in described SBR, the hole of described bottom is arranged in described recess.

7. safety device according to claim 6, wherein, described hole can be expanded by the power distad applied being applied to described bottom, to allow described bottom to shift out described recess and distad to advance to the described second position.

8. safety device according to claim 1, wherein, the near-end of described elongated member comprises frusto-conical portions, described frusto-conical portions has the near-end having the first diameter and the far-end having Second bobbin diameter, described Second bobbin diameter is greater than described first diameter, when described needle guard is in described SBR, the primary importance of described bottom is in the proximal end of described frusto-conical portions, described needle guard is configured to make in described initiate mode, the second position of described bottom is in the far-end of described frusto-conical portions, at described SBR, the diameter that hole in described bottom has is substantially equal to or is slightly greater than described first diameter, described hole is suitable for when described frusto-conical portions distad moves to described the second end, being expanded to described Second bobbin diameter in described bottom.

9. safety device according to claim 7, wherein, the one or more slits in described bottom are conducive to the radial dilatation in described hole at least in part, and described one or more slit extends radially outwardly from the inner circumferential in described hole.

10. safety device according to claim 8, wherein, the one or more slits in described bottom are conducive to the radial dilatation in described hole at least in part, and described one or more slit extends radially outwardly from the inner circumferential in described hole.

11. safety devices according to claim 4, wherein, described recess is suitable for holding as follows the distal portions of described arm at least partially, that is, make to resist the rotary motion of described arm on described elongated member when described needle guard is in described SBR.

12. safety devices according to claim 1, wherein, being inserted at least partially in described hole, to hinder described bottom and the rotary motion of described arm on described elongated member when described needle guard is in described SBR of the proximal part of described elongated member.

13. safety devices according to claim 1, wherein, being inserted at least partially in described hole, to hinder described bottom and the rotary motion of described arm on described elongated member when described needle guard is in described SBR and described initiate mode of the proximal part of described elongated member.

14. safety devices according to claim 1, wherein, the distal portions of described arm comprises the wall portion with far-end, described wall portion is arranged to the middle part of described arm and becomes different angle directions relative to described elongated member, described wall portion is inwardly angled towards described elongated member, when described needle guard is in described SBR, the far-end of described wall portion is against the side of described elongated member, the far-end of described wall portion is configured to depart from described elongated member when described needle guard is in described initiate mode, so that on the far-end being positioned at described elongated member at least in part.

15. safety devices according to claim 1, wherein, the distal portions of described arm comprises the wall portion with far-end, described wall portion is arranged to the middle part of described arm and becomes different angle directions relative to described elongated member, described wall portion is inwardly angled towards described elongated member, when described needle guard is in described SBR, the far-end of described wall portion is against the side of described elongated member, the far-end of described wall portion is configured to depart from described elongated member when described needle guard is in described initiate mode, fully to cover the far-end of described elongated member.

16. safety devices according to claim 14, wherein, the far-end of described wall portion comprises antelabium.

17. safety devices according to claim 4, wherein, described elongated member comprises the features being positioned at its far-end or its far-end close, described features can match with described antelabium, to be fixed on the far-end of described elongated member by the distal portions of described arm when described needle guard is in described initiate mode.

18. safety devices according to claim 15, wherein, described wall portion matches with the far-end of described elongated member, so that the far-end being arranged to fully to cover described elongated member at described wall portion is up to being at least partially formed sealing.

19. safety devices according to claim 18, wherein, the one or both in the far-end of described wall portion and described elongated member is surface treated the formation strengthening described sealing.

20. safety devices according to claim 19, wherein, the one or both in the far-end of described wall portion and described elongated member is coated with sealant.

21. safety devices according to claim 1, wherein, the far-end of described elongated member comprises flange, and described flange has the surface towards distally.

22. safety devices according to claim 1, wherein, comprise overall structure with described arm bottom described needle guard.

23. safety devices according to claim 1, wherein, when the proximal part of described through passage is disposed in described profile variations place, the features close to the proximal end of the through passage of described elongated member is limited the rotary motion between described needle guard and described pin.

24. safety devices according to claim 1, wherein, the far-end of described elongated member comprises conformable material.

25. safety devices according to claim 14, wherein, described first wall portion comprises conformable material.

26. safety devices according to claim 14, wherein, each in the far-end of described wall portion and described elongated member all comprises conformable material.

27. safety devices according to claim 1, wherein, described elongated member comprises the reservoir being positioned at its far-end, to collect the blood or body fluid that flow out from the distal needle of described pin when described needle guard is in described initiate mode.

28. safety devices according to claim 27, comprise the absorbent be in described reservoir further.

29. safety devices according to claim 28, wherein, containing antibacterial and biocide in described absorbent.

30. 1 kinds of needle assemblys, comprise

Pin, described needle set has shank and distal needle, and shank has the profile variations place be positioned near described distal needle; And

Needle guard, described needle guard can move at ready position and enabling between position on described pin, described needle guard comprises the arm distad extended from bottom, be shaped in described bottom porose, described needle guard is slidably mounted on described shank, described shank is through the described hole formed in described bottom, the size in described hole makes it engage to limit the motion between described pin and described needle guard with the profile variations place of described shank, described arm has distal portions, the distal portions of described arm when described pin is in described ready position against the side of described shank, described needle guard comprises elongated member further, described elongated member has the through passage extended between the near-end and far-end of described elongated member, described elongated member is from the position of described bottom or distad extend close to the position of described bottom, and along with described needle guard moves at described ready position and described enabling between position, described elongated member can move along described shank, the length that described elongated member has makes substantially while described profile variations place engages the hole in described bottom, the whole distal needle of described pin is arranged to the through passage being positioned at described elongated member, and the distal portions of described arm depart from described shank in case radially-inwardly move to be positioned at described elongated member at least in part far-end on, described elongated member is enough hard so that pin described in limit is relative to the lengthwise movement of described needle guard on the far-end being positioned at described elongated member at the distal portions of described arm at least in part.

31. needle assemblys according to claim 30, wherein, substantially while described profile variations place engages the hole in described bottom, the distal portions of described wall departs from described shank to cover the far-end of described elongated member completely.

32. needle assemblys according to claim 30, wherein, described elongated member is directly attached to described bottom, makes do not have the part of described elongated member inwardly to be promoted by towards described shank when described needle guard is in described ready position.

33. needle assemblys according to claim 30, wherein, described arm and described elongated member are formed by single piece of material monolithic molding.

34. needle assemblys according to claim 30, wherein, the far-end of described elongated member comprises conformable material.

35. needle assemblys according to claim 30, wherein, the far-end of described arm comprises conformable material.

36. needle assemblys according to claim 30, wherein, each in the distal portions of described arm and the far-end of described elongated member all comprises conformable material.

37. needle assemblys according to claim 30, wherein, described elongated member comprises and is positioned at its far-end or the reservoir close to its far-end, to collect the blood flowed out from the distal needle of described pin or body fluid when enabling position described in described needle guard is in, described reservoir is configured to the distal needle of surrounding described pin when enabling position described in described needle guard is in around ground, described reservoir has the opening towards distally, when enabling position described in described needle guard distad advances to from described ready position, described opening allows described needle guard to slide along the side of described shank.

38. needle assemblys according to claim 30, wherein, described elongated member is completely between described bottom and the distal portions of described arm.

39. 1 kinds of needle assemblys, comprise

Needle guard, described needle guard can move at ready position and enabling between position on described pin, described needle guard comprises the arm distad extended from bottom, be shaped in described bottom porose, described needle guard is slidably mounted on described shank, described shank is through the described hole formed in described bottom, described arm has distal portions, the distal portions of described arm when described pin is in described ready position against the side of described shank, described needle guard comprises elongated member further, described elongated member has the through passage extended between the near-end and far-end of described elongated member, described elongated member is from the position of described bottom or distad extend close to the position of described bottom, and along with described needle guard moves at described ready position and described enabling between position, described elongated member can move along described shank, the through passage of described elongated member has the region of cross section reduction in the position of the length along described elongated member, the size in the region that described cross section reduces makes it engage with the profile variations place of described shank, to enable pin described in the limit of position described in being at described needle guard relative to the motion of described needle guard, the length that described elongated member has makes substantially while described profile variations place engages the hole in described bottom, the whole distal needle of described pin is arranged to the through passage being positioned at described elongated member, and the distal portions of described arm depart from described shank in case radially-inwardly move to be positioned at described elongated member at least in part far-end on, described elongated member is enough hard so that pin described in limit is relative to the lengthwise movement of described needle guard on the far-end being positioned at described elongated member at the distal portions of described arm at least in part.

40. according to needle assembly according to claim 39, and wherein, substantially while described profile variations place engages the hole in described bottom, the distal portions of described wall departs from described shank to cover the far-end of described elongated member completely.

41. according to needle assembly according to claim 39, and wherein, described elongated member is directly attached to described bottom, makes do not have the part of described elongated member inwardly to be promoted by towards described shank when described needle guard is in described ready position.

42. according to needle assembly according to claim 39, and wherein, described arm and described elongated member are formed by single piece of material monolithic molding.

43. according to needle assembly according to claim 39, and wherein, the far-end of described elongated member comprises conformable material.

44. according to needle assembly according to claim 39, and wherein, the far-end of described arm comprises conformable material.

45. according to needle assembly according to claim 39, and wherein, each in the distal portions of described arm and the far-end of described elongated member all comprises conformable material.

46. according to needle assembly according to claim 39, wherein, described elongated member comprises and is positioned at its far-end or the reservoir close to its far-end, to collect the blood flowed out from the distal needle of described pin or body fluid when enabling position described in described needle guard is in, described reservoir is configured to the distal needle of surrounding described pin when enabling position described in described needle guard is in around ground, described reservoir has the opening towards distally, when enabling position described in described needle guard distad advances to from described ready position, described opening allows described needle guard to slide along the side of described shank.

47. according to needle assembly according to claim 39, and wherein, described elongated member is completely between described bottom and the distal portions of described arm.

48. 1 kinds of guide wire introducers, comprising:

Pin, described needle set has shank and distal needle, and shank has profile variations place near described distal needle;

Needle guard, described needle guard changes at ready position and enabling between position, at described ready position, the distal needle of described pin is in unprotect state, position is enabled described, the distal needle of described pin is in guard mode, described needle guard comprises the arm distad extended from bottom, be shaped in described bottom porose, described needle guard is slidably mounted on described shank, described shank is through the described hole formed in described bottom, described needle guard comprises elongated member further, described elongated member is from the position of described bottom or distad extend close to the position of described bottom, and along with described needle guard moves at described ready position and described enabling between position, described elongated member can move along the side of described shank, described elongated member has near-end, far-end and the through passage extended between the near-end and far-end of described elongated member, being positioned at or making described Part I to engage to limit the movement distad on described shank of described needle guard with the profile variations place of described shank close to the position of the Part I of the near-end of described elongated member and size of described through passage, the length that described elongated member has makes when described profile variations place engages the Part I of described through passage, the whole distal needle of described pin is arranged to the through passage being positioned at described elongated member, when described needle guard is in described ready position, the distal portions of described arm is against the outside of described shank, described needle guard be configured to make along with its to be converted to from described ready position described in enable position, the distal portions of described arm along the distally, lateral of described shank move until the distal portions of described arm be radially moved into when enabling position described in described needle guard is be positioned at described elongated member at least in part far-end on, described elongated member is enough hard so that pin described in limit is relative to the lengthwise movement of described needle guard on the far-end being positioned at described elongated member at the distal portions of described arm at least in part.

49. guide wire introducers according to claim 48, wherein, the proximal extension transfixion pin lining of described pin is also connected with described Needle sleeve, described guide wire introducer comprises the housing with near-end and unlimited far-end further, the near-end of described housing is connected to described Needle sleeve, and when being in described ready position, described needle guard is positioned within described housing, when enabling position described in being in, described needle guard is positioned at outside described housing.

50. guide wire introducers according to claim 49, comprise the elastomeric element of the proximal part being arranged in described housing further, described elastomeric element has near-end and far-end, when described needle guard is in described ready position, described elastomeric element is in compressive state and is arranged to act on described needle guard to promote described needle guard towards the far-end of described pin.

51. guide wire introducers according to claim 50, wherein, described needle guard by can between the first position and the second position movement holding element and be maintained at the inside of described housing, when described holding element is in described primary importance, with described needle guard, described holding element engages that described needle guard is remained on described ready position, when described holding element is in the described second position, described holding element and described needle guard depart to allow described needle guard to be advanced by the far-end of described holding element towards described pin, thus make needle guard be described in enable position.

52. guide wire introducers according to claim 48, wherein, the far-end of described elongated member comprises conformable material.

53. (before occurring) guide wire introducer according to claim 48, wherein, the far-end of described arm comprises conformable material.

54. guide wire introducers according to claim 48, wherein, each in the distal portions of described arm and the far-end of described elongated member all comprises conformable material.

55. guide wire introducers according to claim 48, wherein, described elongated member comprises and is positioned at its far-end or the reservoir close to its far-end, to collect the blood or body fluid that flow out from the distal needle of described pin when described needle guard is in described initiate mode.

56. guide wire introducers according to claim 48, wherein, described elongated member comprises the distal portions that diameter increases, the distal portions that described diameter increases limits the chamber of the far-end being positioned at described elongated member, lining is maintained at described intracavity and is arranged to described coaxial needle to be positioned in described elongated member, and when described pin axially moves through described elongated member, the erasing of described lining is from the blood of the outer surface of described pin or body fluid.

57. 1 kinds of guide wire introducers, comprising:

Needle guard, described needle guard changes at ready position and enabling between position, at described ready position, the distal needle of described pin is in unprotect state, position is enabled described, the distal needle of described pin is in guard mode, described needle guard comprises the arm distad extended from bottom, be shaped in described bottom porose, described needle guard is slidably mounted on described shank, described shank is through the described hole formed in described bottom, the size in described hole makes it engage with the profile variations place of described shank to limit the motion distad of described needle guard on described shank, described needle guard comprises elongated member further, described elongated member is from the position of described bottom or distad extend close to the position of described bottom, and along with described needle guard moves at described ready position and described enabling between position, described elongated member can move along the side of described shank, described elongated member has near-end, far-end and the through passage extended between the near-end and far-end of described elongated member, the length that described elongated member has makes when described profile variations place engages the hole in described bottom, the needle point of the whole far-end of described pin is positioned at the through passage of described elongated member, when described needle guard is in described ready position, the distal portions of described arm is against the outside of described shank, described needle guard be configured to make along with its to be converted to from described ready position described in enable position, the distal portions of described arm along the distally, lateral of described shank move until the distal portions of described arm be radially moved into when enabling position described in described needle guard is be positioned at described elongated member at least in part far-end on, described elongated member is enough hard so that pin described in limit is relative to the lengthwise movement of described needle guard on the far-end being positioned at described elongated member at the distal portions of described arm at least in part.

58. guide wire introducers according to claim 57, wherein, the proximal extension transfixion pin lining of described pin is also connected with described Needle sleeve, described guide wire introducer comprises the housing with near-end and unlimited far-end further, the near-end of described housing is connected to described Needle sleeve, and when being in described ready position, described needle guard is positioned within described housing, when enabling position described in being in, described needle guard is positioned at outside described housing.

59. guide wire introducers according to claim 58, comprise the elastomeric element of the proximal part being arranged in described housing further, described elastomeric element has near-end and far-end, when described needle guard is in described ready position, described elastomeric element is in compressive state and is arranged to act on described needle guard to promote described needle guard towards the far-end of described pin.

60. guide wire introducers according to claim 59, wherein, described needle guard by can between the first position and the second position movement holding element and be maintained at the inside of described housing, when described holding element is in described primary importance, with described needle guard, described holding element engages that described needle guard is remained on described ready position, when described holding element is in the described second position, described holding element and described needle guard depart to allow described needle guard to be advanced by the far-end of described holding element towards described pin, thus make needle guard be described in enable position.

61. guide wire introducers according to claim 57, wherein, the far-end of described elongated member comprises conformable material.

62. guide wire introducers according to claim 57, wherein, the far-end of described arm comprises conformable material.

63. guide wire introducers according to claim 57, wherein, each in the distal portions of described arm and the far-end of described elongated member all comprises conformable material.

64. guide wire introducers according to claim 57, wherein, described elongated member comprises and is positioned at its far-end or the reservoir close to its far-end, to collect the blood or body fluid that flow out from the distal needle of described pin when described needle guard is in described initiate mode.

65. guide wire introducers according to claim 57, wherein, described elongated member comprises the distal portions that diameter is greater than the internal diameter of the remainder of described elongated member, the distal portions that described internal diameter increases limits the chamber of the far-end being positioned at described elongated member, lining is maintained at described intracavity and is arranged to described coaxial needle to be positioned in described elongated member, and when described pin axially moves through described elongated member, the erasing of described lining is from the blood of the outer surface of described pin or body fluid.