CN1313053C - Needle tip drawing back type disposable safety blood taking needle and disposable ejection type safety blood taking pen - Google Patents
Needle tip drawing back type disposable safety blood taking needle and disposable ejection type safety blood taking pen Download PDFInfo
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- CN1313053C CN1313053C CNB2004100646710A CN200410064671A CN1313053C CN 1313053 C CN1313053 C CN 1313053C CN B2004100646710 A CNB2004100646710 A CN B2004100646710A CN 200410064671 A CN200410064671 A CN 200410064671A CN 1313053 C CN1313053 C CN 1313053C
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- blood taking
- needle
- taking needle
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
- A61B5/15188—Constructional features of reusable driving devices
- A61B5/15192—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing
- A61B5/15194—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150503—Single-ended needles
- A61B5/150519—Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
- A61B5/150549—Protectors removed by rotational movement, e.g. torsion or screwing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/15058—Joining techniques used for protective means
- A61B5/150618—Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150694—Procedure for removing protection means at the time of piercing
- A61B5/150717—Procedure for removing protection means at the time of piercing manually removed
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15103—Piercing procedure
- A61B5/15107—Piercing being assisted by a triggering mechanism
- A61B5/15113—Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
- A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15126—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides
- A61B5/1513—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides comprising linear sliding guides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
- A61B5/15188—Constructional features of reusable driving devices
- A61B5/1519—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for propelling the piercing unit
Abstract
The present invention relates to a disposable safety blood taking needle with a withdrawn needle head and a disposable emitting safe blood taking pen. The blood taking needle has the structure that a needle core with a needle body is glidingly arranged in an outer shell, the inner wall of the front part of the outer shell is provided with a conical surface or an oblique plane, the front end of the outer shell is provided with needle outlet holes, and elastic sheets which form sliding fit with the conical surface or the oblique plane are obliquely arranged on the needle core symmetrically; thus, a needle head withdrawing structure is formed. The blood taking pen comprises a shell body and a locking shooting structure with an emitting rod, wherein the front end of the shell body is provided with an insertion hole of the blood taking needle; a sliding push and press component is arranged on the shell body and is provided with a push rod which extends to the insertion hole to be matched with the blood taking needle; a push hook extends to the emitting rod to be matched with the push and press end surface of the emitting rod, and the lateral surface of the extension arm of the push hook is provided with a bulge which is matched with the oblique surface of the shell body; a push and press key is exposed out of the shell body, and the front end of the emitting rod is provided with an emitting head which is aligned to the impact surface of the blood taking needle in the insertion hole of the front. The present invention solves the safety problems that the needle head of the present blood taking needle is exposed and the blood taking pen can emit repeatedly after the blood taking needle is installed. Thus, the present invention is a reform and innovation for the blood taking needle and the blood taking pen matched with the blood taking needle.
Description
Technical field
The present invention relates to disposable medical safety blood taking pin and matching used primary emission type safety blood taking pen thereof, be specifically related to a kind of needle point disposable safe blood taking needle of retraction automatically, and the safety blood taking pen of once adorning the not reproducible emission of pin.
Background technology
At present, in the medical blood-sampling needle device, adopting disposable blood taking needle and the matching used mode of blood collecting pen is one of typical type of blood taking needle device.Such blood sampling device is made up of blood taking needle and blood collecting pen two parts, and blood taking needle is made of nook closing member and the pin medicated cap of being with needle body as a kind of acupuncture treatment structure, and this blood taking needle all adopts easy structure, disposable use.Blood collecting pen is as establishing a cover ejection mechanism in a kind of discharger, and is reusable.During use, disposable blood taking needle is installed in the head of blood collecting pen, takes off disposable blood taking needle after the emission, load onto new blood taking needle then and reuse, be equivalent to the relation of bullet and rifle.Compare with the disposable automatic blood-taking needle of band trigger mechanism, because blood collecting pen is reusable, and the cost of a disposable blood taking needle is very low, therefore, the use cost of this blood sampling device is lower, accepted by medical institutions easily, also avoided some unnecessary wastes simultaneously, present this blood sampling device occupies sizable market.
Yet from safety perspective, at present all disposable blood taking needles of worldwide all exist a common safety problem, promptly because the needle point of this blood taking needle exposes, cause the danger of stabbing medical personnel and cross infection easily because of careless when unloading pin; Needle point also injures human body easily after abandonment, and causes cross infection.Although present most disposable blood taking needles all have pin medicated cap or pin lid, the very big danger of therefore same existence often takes place in the phenomenon that pin medicated cap or pin is not covered needle point after actual the use.
On the other hand, Chang Gui blood collecting pen also all exists a common safety issue on structural design in the market, but i.e. equal repeat its transmission after a blood taking needle has been installed, and the carelessness owing to medical personnel causes cross infection easily like this.Particularly many blood sampling patient, under the fast or high-strung state of work rhythm, be easy to the phenomenon that occurs reusing.Again on the one hand, the needle outlet end face of existing blood collecting pen directly contacts the skin at human blood collection position, and non-exchange, does not handle if do not carry out effective disinfection when reusing, and is easy to cause the cross infection of pathogenic bacteria or residual disorders of blood poison.Although many for a long time production firms and scientific research personnel pay close attention to the problem of this respect very much, up to the present also not well-content answer.
Summary of the invention
The present invention proposes a kind of needle tip retracts type disposable safe blood taking needle and matching used primary emission type safety blood taking pen, but its objective is that solving present disposable safe blood taking needle needle point exposes the safety issue of existence and the safety issue of blood collecting pen repeat its transmission after loading onto a blood taking needle.
For achieving the above object, the technical scheme that blood taking needle of the present invention adopts is: a kind of needle tip retracts type disposable safe blood taking needle, comprise the nook closing member of being with needle body, and its innovation is: nook closing member is placed in the shell, and is slidingly matched with the inner chamber of shell; The nook closing member rear end is provided with striking face, and this striking face is exposed in outer casing back uncovered or outside uncovered; The shell front inner wall is provided with the conical surface or symmetric inclined-plane, front end is provided with needle outlet, on the nook closing member to should the conical surface or the inclined-plane be symmetrical arranged flexure strip, flexure strip is oblique to be extended forward and is acute angle with needle body, flexure strip travels forward with nook closing member in the process, it end and the conical surface or inclined-plane is not slidingly matched, and the length that the conical surface or inclined-plane expose when the length of needle body axis projection is launched greater than needle point constitutes the needle tip retracts structure with this.
Related content and change interpretation in the technique scheme are as follows:
1, in the such scheme, the striking face central authorities of nook closing member rear end are arranged with hole or groove, and the bottom surface of this hole or groove is as the axial positioning reference plane of needle body.
2, in the such scheme, the striking face of nook closing member rear end is exposed in outer casing back uncovered, and open inwall is provided with projection or the barb that prevents that nook closing member from skidding off, and uncovered circumferentially being separated by offered notch, makes the uncovered elasticity that has, so that the packing into of nook closing member.
3, in the such scheme, after sterilization, do not contact, adopted the protective measure of pin medicated cap or pin lid with the external world in order to guarantee needle point.When adopting the pin medicated cap, can directly be enclosed within or one is connected and forms the needle point hermetically-sealed construction on the needle point, the pin medicated cap stretches out from the needle outlet of shell front end.When adopting the pin lid, can directly be enclosed within the shell front end and form the needle point seal cavity.
For achieving the above object, the technical scheme that blood collecting pen of the present invention adopts is: primary emission type safety blood taking pen, a housing is arranged, and be provided with the locking shooting structure of a cover band emission bar in the housing, its innovation is:
The corresponding blood taking needle of housing front end is provided with plug-in opening;
Housing is provided with a push part of sliding, and has a push rod directly to extend to plug-in opening on this push part, cooperates with blood taking needle; Have one to push away hook and extend to the emission bar, cooperates with emission bar pushing end face, the adjutage side that pushes away hook is provided with projection, cooperates with inclined-plane on the housing, constitutes the push rod interlock locking mechanism of adorning pin with this; Also have a pushing key to be exposed at outside the housing, constitute with this and unload pin mechanism;
Emission bar front end is penetrated head, and this penetrates the blood taking needle striking face position of head in the plug-in opening of the place ahead.Related content and change interpretation in the technique scheme are as follows:
1, in the such scheme, locking shooting structure comprises emission bar, shooting spring, Lock Part and button, the emission bar is slidingly mounted on the shooting intracavity of housing, the emission rod rear end connects the shooting spring, Lock Part is a rod member, the rod member rotating support is on housing, the rod member front end is provided with latch hook, to being provided with snap close in emission bar side by latch hook, latch hook and snap fit constitute latch-up structure, button is provided with the inclined-plane bar, and this inclined-plane bar extends to the effect end of rod member, and cooperates the formation emitting structural with the effect end; Also be connected in series one between described shooting spring and the button and regulate a head and a button spring, regulate [a 28] sidepiece and be provided with regulating arm, regulating arm stretches out from the adjustment hole of housing sidepiece, and adjustment hole is a tilted slotted hole.
2, in the technique scheme, be arranged with two grooves on the inwall of described blood taking needle plug-in opening in parallel, be provided with an elastic bumps between two grooves, this projection cooperates with the blood taking needle outer wall, constitutes disconnecting prevention structure, make blood taking needle insert plug-in opening after, can not come off voluntarily.
Operation principle of the present invention is:
1, about the blood taking needle part, referring to accompanying drawing 12, when not using, be with pin medicated cap 3 on the needle point, flexure strip 8 is and opens free state, props up mutually with shell 4, and nook closing member 2 is positioned at shell 4; During use, blood taking needle is contained on the blood collecting pen, backs out pin medicated cap 3, during emission, the impact force action of penetrating head is on the striking face 6 of nook closing member 2 rear ends, nook closing member promptly slides because of the inertia forward end, and with the extruding forward of flexure strip 8, the not end of flexure strip 8 promptly slides on the inclined-plane on housing, make originally open two flexure strips, 8 compression modification, at this moment, needle point promptly stretches out from needle outlet 5, carries out blood sampling work; When the recuperability that produces after by flexure strip 8 modification when the inertia force of emission was offset, the recuperability of flexure strip 8 can push back nook closing member in the housing 4 immediately, and its needle point is also thereupon in the retraction housing 4.
2, about the blood collecting pen part, when not loading onto blood taking needle, shown in accompanying drawing 4, emission bar 17 is positioned at the shell front portion, and its snap close 26 is separated with the latch hook 25 of Lock Part 23; Blood taking needle is packed in the plug-in opening 13, blood taking needle moves after pushing away push part 14 by push rod 15, and, the hook 16 that pushes away on the push part 14 matches with the pushing end face of emission bar 17, driving emission bar 17 moves together backward, to shoot spring 22 compression, and simultaneously, push away projection 18 on the hook 16 and also slide to inclined-plane 19 on the housing gradually; When emission bar 17 moves into place, when its snap close 26 has caught on the latch hook 25 of Lock Part 23, push away projection 18 19 slips on the hook 16 along the inclined-plane, the adjutage that pushes away hook 16 is outwards arranged, push away hook 16 and be separated with the pushing end face of launching bar 17, be battery this moment as shown in Figure 5; During emission, press button 24, inclined-plane bar 27 promptly moves forward, and acts on the effect end of Lock Part 23 rod members, and the effect end of rod member is promptly swung to axis direction, the other end is promptly outwards arranged, latch hook 25 and snap close 26 are separated, and emission bar 17 promptly can penetrate forward because of the elastic force of shooting spring 22, and penetrating of its front end 21 impinged upon on the nook closing member striking face 6 of blood taking needle, impulsive force is transferred on the blood taking needle, blood taking needle is penetrated; After the emission, emission bar 17 all breaks away from Lock Part 23, push part 14, and the hook 16 that pushes away on the push part 14 has been positioned at the middle part of launching bar 17, can't act on the emission bar, at this moment, touches the button also to no effect again, can not launch continuously; Now, user can only be changed the operation of blood taking needle, the pushing key 20 of push part 14 is pushed away forward, the blood taking needle that its push rod 15 will have been launched ejects in plug-in opening 13, get back to the state that is unkitted blood taking needle this moment again, user can insert plug-in opening 13 with a new blood taking needle and install, as shown in Figure 4, and with this working in reciprocating mode.
3, about regulating head part, when needs are regulated depth of needling, can rotate by regulating arm 30 and regulate 28, can change the axial location of emission bar 17 in blood collecting pen, thereby can adjust the stroke that emission bar 17 promotes needle body 1, to reach the purpose of regulating blood sampling volume.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
1, owing to is provided with the resilience mechanism of flexure strip between the nook closing member of blood taking needle of the present invention and the shell, this disposable safe blood taking needle is after use, needle point can be retracted in the shell of a safety automatically, needle point is no longer exposed, therefore thoroughly eliminated existing blood taking needle in use with use the existing potential safety hazard in back, the safety that has further improved blood taking needle.
2, because the trigger mechanism design of the push rod interlock of blood collecting pen of the present invention locking, making blood collecting pen once adorn pin can only launch once, can not carry out repeat its transmission, but thoroughly solved the problem that present conventional blood collecting pen uses a blood taking needle repeat its transmission, effectively avoid the danger of cross infection, further improved the safety of blood collecting pen.
3, since the needle outlet end face that the present invention directly contacts human blood collection position skin be located on the blood taking needle shell, when changing blood taking needle, the needle outlet end face is changed simultaneously, therefore when blood sampling not only needle point be disposable use, and the needle outlet end face also is disposable use, effectively avoid the danger of cross infection, further improved the safety of blood collecting pen.
4, since blood taking needle of the present invention and blood collecting pen in use, the needle outlet end face is disposable use, and removed from needs after using to clean and the operation of the needle outlet end face of sterilizing in the past, has so not only reduced the operation requirement, simplify operating procedure, and further improved the safety of using.
Description of drawings
Accompanying drawing 1 is needle tip retracts type disposable safe blood taking needle of the present invention and primary emission type safety blood taking pen embodiment front view.
Accompanying drawing 2 is the vertical view of Fig. 1.
Accompanying drawing 3 be the B-B of Fig. 1 to cutaway view, the expression blood taking needle is treated the plug-in mounting state among the figure.
Accompanying drawing 4 be the A-A of Fig. 2 to cutaway view, the expression blood taking needle is treated the plug-in mounting state among the figure.
Accompanying drawing 5 is the cutaway view under the blood taking needle plug-in mounting state.
Accompanying drawing 6 is needle tip retracts type disposable safe blood taking needle of the present invention and primary emission type safety blood taking pen embodiment internal structure axonometric chart, and the expression blood taking needle is treated the plug-in mounting state among the figure.
Accompanying drawing 7 is needle tip retracts type disposable safe blood taking needle of the present invention and primary emission type safety blood taking pen embodiment internal structure axonometric chart, state behind the expression blood taking needle plug-in mounting among the figure.
Accompanying drawing 8 is blood taking needle embodiment front view of the present invention.
Accompanying drawing 9 is the vertical view of Fig. 8.
Accompanying drawing 10 is the left view of Fig. 8.
Accompanying drawing 11 is that the H-H of Fig. 9 is to cutaway view.
Accompanying drawing 12 is that the G-G of Fig. 9 is to cutaway view.
Accompanying drawing 13 is half a housing axonometric chart of blood collecting pen.
In the above accompanying drawing: 1, needle body; 2, nook closing member; 3, pin medicated cap; 4, shell; 5, needle outlet; 6, striking face; 7, inclined-plane; 8, flexure strip; 9, groove; 10, barb; 11, notch; 12, housing; 13, blood taking needle plug-in opening; 14, push part; 15, push rod; 16, push away hook; 17, emission bar; 18, projection; 19, inclined-plane; 20, pushing key; 21, penetrate head; 22, shooting spring; 23, Lock Part; 24, button; 25, latch hook; 26, snap close; 27, inclined-plane bar; 28, regulate head; 29, button spring; 30, regulating arm; 31, adjustment hole; 32, groove; 33, elastic bumps; 34, blood taking needle; 35, blood collecting pen.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment one: referring to Figure 12 and Fig. 4～shown in Figure 7, a kind of needle tip retracts type disposable safe blood taking needle is made up of nook closing member 2, pin medicated cap 3, shell 4 and the flexure strip 8 of band needle body 1.Pin medicated cap 3 directly is enclosed within and forms the needle point hermetically-sealed construction on the needle point.Nook closing member 2 is positioned in the shell 4, and is slidingly matched with the inner chamber of shell 4.Nook closing member 2 rear ends are provided with striking face 6, and this striking face 6 is exposed in shell 4 rear ends uncovered, and open inwall is provided with the barb 10 that prevents that nook closing member 2 from skidding off, and uncovered circumferentially being separated by offered notch 11, sees Fig. 8.Shell 4 front inner wall are provided with symmetric two inclined-planes 7, and front end is provided with needle outlet 5, and pin medicated cap 3 stretches out from needle outlet 5.Inclined surface 7 is symmetrical arranged two flexure strips 8 on the nook closing member 2, flexure strip 8 is oblique to be extended forward and is acute angle with needle body 1, flexure strip 8 travels forward with nook closing member 2 in the process, it is not held with inclined-plane 7 and is slidingly matched, the length that inclined-plane 7 exposes when the length of needle body 1 axis projection is launched greater than needle point constitutes the needle tip retracts structure with this.
In order to make needle body 1 in the axial accurate location of nook closing member 2, striking face 6 central authorities of nook closing member 2 rear ends are arranged with groove 9, and Figure 12 is seen as the axial positioning reference plane of needle body 1 in the bottom surface of this groove 9.
Embodiment two: primary emission type safety blood taking pen, and there are two and half housing amalgamations to constitute a housing 12, see Fig. 2 and Figure 13.Referring to Fig. 4～shown in Figure 7, be provided with the locking shooting structure of a cover band emission bar 17 in the housing 12.The corresponding blood taking needle of housing 12 front ends is provided with plug-in opening 13.Housing 12 is provided with a push part 14 of sliding, and has a push rod 15 directly to extend to plug-in opening 13 on this push part 14, cooperates with blood taking needle; Have one to push away hook 16 and extend to emission bar 17, cooperates with emission bar 17 pushing end faces, the adjutage side that pushes away hook 16 is provided with projection 18, cooperates with inclined-plane 19 on the housing 12, constitutes the push rod interlock locking mechanism of adorning pin with this; Also have a pushing key 20 to be exposed at outside the housing 12, constitute with this and unload pin mechanism.Emission bar front end penetrates 21, and this penetrates 21 blood taking needle striking face 6 positions in the place ahead plug-in opening 13.Described locking shooting structure by emission bar 17, shooting spring 22, Lock Part 23, regulate 28, button spring 29 and button 24 form.Emission bar 17 is slidingly mounted on the shooting intracavity of housing 12, emission bar 17 rear ends connect shooting spring 22, shooting spring 22 withstands on to be regulated on 28, regulate 28 sidepiece and be arranged with two regulating arms 30, regulating arm 30 stretches out from the adjustment hole 31 of housing 12 sidepieces, adjustment hole 31 is a tilted slotted hole, sees Fig. 1 and Fig. 2.Regulate between an another side of 28 and the button 24 button spring 29 is set, see Fig. 4～Fig. 7.Lock Part 23 is a rod member, and the rod member rotating support is on housing 12, and the rod member front end is provided with latch hook 25, and to being provided with snap close 26 in emission bar 17 sides by latch hook 25, latch hook 25 cooperates the formation latch-up structure with snap close 26.Button 24 is provided with inclined-plane bar 27, and this inclined-plane bar 27 extends to the effect end of rod member, and cooperates the formation emitting structural with the effect end.
Be arranged with two grooves 32 on the inwall of described blood taking needle plug-in opening 13 in parallel, be provided with an elastic bumps 33 32 of two grooves, this projection 33 cooperates with the blood taking needle outer wall, constitutes disconnecting prevention structure, sees Fig. 4 and Figure 13.
Claims (4)
1, primary emission type safety blood taking pen has a housing [12], is provided with the locking shooting structure of a cover band emission bar [17] in the housing [12], it is characterized in that:
The corresponding blood taking needle of housing [12] front end is provided with plug-in opening [13];
Housing [12] is provided with a push part [14] of sliding, and has a push rod [15] directly to extend to plug-in opening [13] on this push part [14], cooperates with blood taking needle; Have one to push away hook [16] and extend to emission bar [17], cooperates with emission bar [17] pushing end face, the adjutage side that pushes away hook [16] is provided with projection [18], cooperates with inclined-plane [19] on the housing [12], constitutes the push rod interlock locking mechanism of adorning pin with this; Also have a pushing key [20] to be exposed at outside the housing [12], constitute with this and unload pin mechanism;
Emission bar [17] front end is penetrated head [21], and this penetrates blood taking needle striking face [6] position of head [21] in the place ahead plug-in opening [13].
2, primary emission type safety blood taking pen according to claim 1, it is characterized in that: locking shooting structure comprises emission bar [17], shooting spring [22], Lock Part [23] and button [24], emission bar [17] is slidingly mounted on the shooting intracavity of housing [12], emission bar [17] rear end connects shooting spring [22], Lock Part [23] is a rod member, the rod member rotating support is on housing [12], the rod member front end is provided with latch hook [25], to being provided with snap close [26] in emission bar [17] side by latch hook [25], latch hook [25] cooperates the formation latch-up structure with snap close [26], button [24] is provided with inclined-plane bar [27], this inclined-plane bar [27] extends to the effect end of rod member, and cooperates the formation emitting structural with the effect end.
3, primary emission type safety blood taking pen according to claim 2, it is characterized in that: also be connected in series one between described shooting spring [22] and the button [24] and regulate head [28] and a button spring [29], regulate head [28] sidepiece and be provided with regulating arm [30], regulating arm [30] stretches out from the adjustment hole [31] of housing [12] sidepiece, and adjustment hole [31] is a tilted slotted hole.
4, primary emission type safety blood taking pen according to claim 1, it is characterized in that: be arranged with two grooves [32] on the inwall of described blood taking needle plug-in opening [13] in parallel, between two grooves [32], be provided with an elastic bumps [33], this projection [33] cooperates with the blood taking needle outer wall, constitutes disconnecting prevention structure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100646710A CN1313053C (en) | 2004-09-15 | 2004-09-15 | Needle tip drawing back type disposable safety blood taking needle and disposable ejection type safety blood taking pen |
| PCT/CN2005/000351 WO2006029556A1 (en) | 2004-09-15 | 2005-03-21 | A disposable safety collection needle and a safety blood collection pen for one-off ejecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100646710A CN1313053C (en) | 2004-09-15 | 2004-09-15 | Needle tip drawing back type disposable safety blood taking needle and disposable ejection type safety blood taking pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1586396A CN1586396A (en) | 2005-03-02 |
| CN1313053C true CN1313053C (en) | 2007-05-02 |
Family
ID=34603852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100646710A Expired - Fee Related CN1313053C (en) | 2004-09-15 | 2004-09-15 | Needle tip drawing back type disposable safety blood taking needle and disposable ejection type safety blood taking pen |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1313053C (en) |
| WO (1) | WO2006029556A1 (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1961828B (en) * | 2005-11-11 | 2011-07-27 | 上海宝尔生贸易有限公司分公司 | Pen cap type blood taking needle |
| WO2009127078A1 (en) * | 2008-04-14 | 2009-10-22 | 明辰股份有限公司 | Automatic retractable safety device for blood sampling |
| JP5514008B2 (en) * | 2010-06-22 | 2014-06-04 | ニプロ株式会社 | Disposable puncture device |
| TWI477256B (en) * | 2012-01-19 | 2015-03-21 | Bionime Corp | Lancing device |
| CN102835961B (en) * | 2012-09-27 | 2015-01-14 | 王振民 | Three-spring portable painless blood sampling pen with disposable pen point |
| CN103190921B (en) * | 2013-04-22 | 2014-07-16 | 威海洁瑞医用制品有限公司 | Disposable safe blood taking needle |
| KR20160039072A (en) * | 2014-09-30 | 2016-04-08 | 서울바이오시스 주식회사 | UV LED Integrated Fleam |
| CN107405119B (en) * | 2015-01-20 | 2020-06-16 | 广州市健之堂医疗器械有限公司 | Safe blood taking needle structure |
| CN106175796B (en) * | 2016-08-30 | 2023-03-14 | 苏州施莱医疗器械有限公司 | Head-shrinking type head pressing type disposable hemostix |
| CN107913073B (en) * | 2016-11-08 | 2023-08-22 | 苏州施莱医疗器械有限公司 | One-step operation inner cap type hemostix |
| CN107260185B (en) * | 2017-07-07 | 2023-10-03 | 深圳依洛科特医疗科技有限公司 | Striker self-rebound mechanism for blood collection needle |
| CN107334479B (en) * | 2017-08-04 | 2023-08-18 | 深圳依洛科特医疗科技有限公司 | Ejection control mechanism for blood taking needle |
| CN107625526B (en) * | 2017-10-23 | 2019-08-23 | 苏州施莱医疗器械有限公司 | A kind of blood collecting pen for preventing maloperation from unloading needle |
| CN107951494B (en) * | 2017-12-18 | 2024-02-13 | 天津华鸿科技股份有限公司 | Quick retraction mechanism of blood sampling pen |
| CN108283508B (en) * | 2017-12-29 | 2020-11-13 | 桐庐前沿医疗科技有限公司 | Biopsy needle and using method |
| CN108078596B (en) * | 2017-12-29 | 2020-11-13 | 桐庐前沿医疗科技有限公司 | Biopsy needle for puncture and use method |
| CN108272474B (en) * | 2017-12-29 | 2020-11-13 | 桐庐前沿医疗科技有限公司 | Biopsy needle convenient to operate and using method |
| WO2019200336A1 (en) * | 2018-04-12 | 2019-10-17 | New World Medical, Inc. | Device and method for intraocular fluid injection |
| CN109998567B (en) * | 2019-05-20 | 2024-01-12 | 杨立新 | Automatic needle head protection-sealing integrated blood and gas collection needle |
| CN110840465B (en) * | 2019-11-30 | 2022-08-26 | 中国人民解放军陆军军医大学第一附属医院 | Automatic retraction blood taking needle |
| CN111419244B (en) * | 2020-04-21 | 2022-04-19 | 苏州施莱医疗器械有限公司 | Blood sampling pen utilizing tail handle to be loaded in chamber and adjusting depth |
| CN113476044B (en) * | 2021-07-02 | 2023-02-24 | 天津云帆医疗器械有限公司 | Safety blood taking needle |
| WO2023273338A1 (en) * | 2021-07-02 | 2023-01-05 | 天津云帆医疗器械有限公司 | Blood collection needle |
| CN113598765B (en) * | 2021-07-27 | 2023-06-02 | 天津云帆医疗器械有限公司 | Blood sampling pen |
| CN113995407B (en) * | 2021-09-28 | 2023-08-22 | 苏州施莱医疗器械有限公司 | Simple head pressing type disposable safety hemostix |
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| JP2000245717A (en) * | 1999-03-04 | 2000-09-12 | Terumo Corp | Puncture tool |
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| CN2737303Y (en) * | 2004-09-15 | 2005-11-02 | 施迎敢 | Needle head withdrawing disposable safety blood sampling needle and disposable emitting safety blood taking pen |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006029556A1 (en) | 2006-03-23 |
| CN1586396A (en) | 2005-03-02 |
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