CN104470440A - Syringe type vacuum blood collector with telescopic protective sleeve - Google Patents

Syringe type vacuum blood collector with telescopic protective sleeve Download PDF

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Publication number
CN104470440A
CN104470440A CN201280074569.1A CN201280074569A CN104470440A CN 104470440 A CN104470440 A CN 104470440A CN 201280074569 A CN201280074569 A CN 201280074569A CN 104470440 A CN104470440 A CN 104470440A
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CN
China
Prior art keywords
syringe
blood
sample collection
protective cover
type vacuum
Prior art date
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Granted
Application number
CN201280074569.1A
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Chinese (zh)
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CN104470440B (en
Inventor
张建铭
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Bestway Changting Medical Devices Co ltd
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Individual
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/14—Devices for taking samples of blood ; Measuring characteristics of blood in vivo, e.g. gas concentration within the blood, pH-value of blood
    • A61B5/1405—Devices for taking blood samples
    • A61B5/1438—Devices for taking blood samples using pre-evacuated means
    • A61B5/1444—Safety means, e.g. for locking cannula
    • 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
    • A61B5/150633—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • 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
    • A61B5/150732—Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
    • 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
    • A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A61B5/154—Devices using pre-evacuated means
    • 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
    • A61B5/15003—Source of blood for venous or arterial blood
    • 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
    • A61B5/150351—Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
    • 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
    • A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • 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
    • 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
    • A61B5/150572—Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
    • 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
    • A61B5/15074—Needle sets comprising wings, e.g. butterfly type, for ease of handling
    • 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
    • A61B5/150992—Blood sampling from a fluid line external to a patient, such as a catheter line, combined with an infusion line; blood sampling from indwelling needle sets, e.g. sealable ports, luer couplings, valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

A syringe type vacuum blood collector with a telescopic protective sleeve comprises a vascular puncture needle tube (11), a blood collection needle tube (12), a blood sample collection pipe (2), a syringe (3), and a telescopic protective sleeve formed by sheathing a fixed sleeve (71) and a sliding sleeve (72) together in a sliding manner. The syringe (3) is connected to a tail end of the sliding sleeve (72). A tail end of the vascular puncture needle tube (11) is eccentrically inserted on a needle seat (13) in a manner of closing an outer circumferential surface of the syringe (3). The syringe (3) has a seal cavity (32) and a cylindrical cavity (33) inside, and the seal cavity (32) is located in front of the cylindrical cavity (33). A tube core of the blood collection needle tube and a tube core of the vascular puncture needle tube communicate with the seal cavity (32). The sliding sleeve (72), the syringe (3), the puncture needle tube (11), the puncture needle seat (13), the blood collection needle tube (12), and the blood sample collection pipe (2) form a sliding member sliding relative to the fixed sleeve (71).With the regression of the sliding member, the puncture needle tube (11) is retracted into an inner cavity of the fixed sleeve, thereby ensuring that the regressed puncture needle tube (11) is not pushed out to hurt a person and improving the security and success rate of an operation.

Description

Syringe-type vacuum blood collector with telescopic protective cover Technical field
The present invention relates to vacuum blood collection apparatus, particularly a kind of syringe-type vacuum blood collector with telescopic protective cover outside a kind of human body in clinical treatment.
Background technology
A kind of vacuum blood collection pipe device of the prior art is as shown in Fig. 1, Fig. 2, including blood taking needle and blood sample collection pipe 2 , blood taking needle one end is vascular puncture needle tubing 11, and the other end is to carry gum cover blood-collecting needle tube 12, and centre passes through PVC conduits 13 Connection.The device first pulls out protective case on the needle tubing of two, vascular puncture needle tubing 11 is pierced into sufferer arm vein in blood sampling, waits blood to enter in blood sampling conduit, medical worker pushes down the vascular puncture needle tubing 11 with little finger immediately Needle handle, to prevent puncture needle tubing come off；Because the seal rubber plug of blood sample collection pipe 2 is very thick, the pinpoint inclined plane angle of blood-collecting needle tube 12 is big, and needle point is blunt, adds blood-collecting needle tube 12 Sealed rubber pipe elastic force when being compressed axially is very big, therefore needs both hands that blood-collecting needle tube 12 could be pierced into blood sample collection pipe, and operation is quite inconvenient.Due to blood sample collection pipe 2 It is inside negative pressure, the speed that blood is flowed into the collecting pipe.It is to be collected to required sample amount, if multitube blood sample need to be gathered, must bimanualness blood-collecting needle tube 12 could be extracted from collecting pipe 2.Now blood-collecting needle tube 12 Outer soft rubber sleeve restores, and encases blood-collecting needle tube, prevents blood outflow pollution environment, the intubation before then repeating in conduit；If need not draw blood again, puncture needle tubing 11 on human body must be first extracted , then needle tip shield is put, then pull out blood-collecting needle tube 12 on collecting pipe 2.This vacuum blood sampler is due to blood taking needle and the split of collecting pipe 2 construction as can be seen here, and blood collection procedure need to care for conduit 13 simultaneously Two needle tubing, cause complex operation cumbersome, multiple operating procedures even need both hands and also need to impose certain and just right power that the extraction and insertion of needle tubing could be completed, and the needle tubing to other end now can not be just cared for, so involving again needs the cooperating of more than one medical personnel.The presence of the cumbersome operating procedure of this complexity and two needle tubing, Medical personnel's workload and psychological burden are virtually added, under the big scene of limb activity amplitude, maloperation is easily produced suffering from unconsciousness, restless, disoperative patient and patient infant.And after puncture terminates, exposed puncture needle tubing needle point does not have security protection easily to pierce people, potential safety hazard is produced.
The content of the invention
It is an object of the invention to overcome weak point of the prior art, and provide a kind of structure simplify, it is simple to operate readily, puncture is terminated after puncture needle pipe there is the telescopic protective cover that has of security protection Syringe-type vacuum blood collector.
The purpose of the present invention is realized by following approach.
Syringe-type vacuum blood collector with telescopic protective cover, including vascular puncture needle tubing, blood-collecting needle tube and blood sample collection pipe, its composition is characterized by, also include a kind of syringe and a kind of telescopic protective cover being set in together by fixed cover and slip cap slip, syringe and slip cap tail end are affixed, the tail end of vascular puncture needle tubing bias in the way of close to syringe outer peripheral face is plugged on Paracentesis needle holder, the needle point of the needle tubing and the major part of needle tubing are exposed outside syringe, there is an annular seal space and a cylindrical cavity inside syringe, wherein annular seal space is located at before cylindrical cavity, the tube core of vascular puncture needle tubing is connected with the annular seal space, the front end of blood-collecting needle tube is installed with the capsule walls, rear end and needle tubing largely extend back and are plugged in the pipe close of blood sample collection pipe, the tube core of blood-collecting needle tube is connected with the annular seal space, the rear and its rear end that cylindrical cavity is located at annular seal space are opened, blood sample collection pipe pipe close is nested with the cylindrical cavity preceding in removable mode, blood sample collection pipe pipe close aft bulkhead has a sealant that can be pierced through by blood-collecting needle tube rear end , The cylindrical cavity of blood sample collection pipe front end face has the space that the preceding blood sample collection tube capacity pushed away is put for this sealant of puncture, vascular puncture needle tubing tube core, annular seal space, blood sample collection pipe tube chamber after blood-collecting needle tube tube core and pierced sealant constitutes a kind of blood channel, Paracentesis needle holder is located at slip cap tail end and affixed with syringe, Paracentesis needle holder inner chamber is annular seal space, needle tubing is punctured axially to walk and be finally fixed on Paracentesis needle holder along slip cap inner chamber, slip cap, syringe, puncture needle tubing, Paracentesis needle holder and blood-collecting needle tube or even a kind of relative slide unit for being relatively fixed set slip of blood sample collection pipe composition, retracted to as the retrogressing of slide unit punctures needle tubing in fixed cover inner chamber.
So, with syringe rigid attachment vascular puncture needle tubing, blood-collecting needle tube and blood sample collection pipe, three not only Construction integration but also a kind of traditional needle cylinder structure of composition are made, structure simplifies, and holding is easy to operate, and operating process is extremely similar to the operation of conventional syringes.
During blood sampling, hold syringe vascular puncture needle tubing is pierced into sufferer arm vein, when seeing blood back, handle syringe on the other hand, another hand or same finger sinciput blood sample collection pipe another on the other hand, blood-collecting needle tube rear end is set to pierce through the sealant of blood sample collection pipe pipe close, due to the negative pressure of blood sample collection pipe tube chamber, the speed that blood is flowed into the collecting pipe.The sample amount to be collected needed for, if multitube blood sample need to be gathered, only one hand is needed to extract collecting pipe from cylindrical cavity, now the outer blood sampling sealing shroud made by soft rubber sleeve of blood-collecting needle tube restores, encase blood-collecting needle tube, blood outflow pollution environment in conduit is prevented, new blood sample collection pipe is then further taken out；If need not draw blood again, it only need to first extract and needle tubing is punctured on human body, put needle tip shield, then remove collecting pipe.
At the end of blood sampling, can pusher syringe make puncture needle tubing retreat submerge in fixed cover inner chamber, now fixed cover be used as puncture needle tubing protective case.
The purpose of the present invention can also be realized by following approach.
The present invention is on the further optimization of telescopic protective cover：
Also include a kind of non-return device, this non-return device is arranged between slide unit and fixed cover, if being pushed away before the retrogressing slide unit that extremely puncture needle tubing is retracted into fixed cover inner chamber is reverse will prevent to contact with this non-return device.
So, because of the prevention of non-return device, retreat slide unit in place can not before push away.Hurted sb.'s feelings so as to both ensure that the puncture needle tubing retreated will not be elapsed out again, this syringe-type vacuum blood collector of the present invention can also be promoted disposable.
It is common in the aciculiform medicine equipment of this non-return device in the prior art, mostly can be using in the present invention.The present invention provides the non-return device of two kinds of optimization herein：
The non-return device is a kind of elastic symmetry closure tongue piece, in front of Paracentesis needle holder, in the inner chamber of fixed cover front bulkhead, punctures needle tubing tail end and wore the closure joint portion of this closure tongue piece and be fixed on Paracentesis needle holder.
So, after puncture needle tubing is removed, tongue piece elastic reset blocks former puncture barrel outlet.
The present invention on syringe-type vacuum blood collection construct further optimization be：
The vascular puncture needle tubing and the center parallel of syringe arranged and extended forward close to syringe outer peripheral face.
Annular seal space is the perspective portion on a kind of blood back cavity, the position that syringe outer peripheral face is adapted with the annular seal space with observable blood back.
Syringe leading section is in the downwardly extending wedge shape that contracted in one kind, and vascular puncture needle tubing is affixed in the wedge-shaped lower extending end head and syringe, and the perspective portion of observable blood back is located on the wedge-shaped inclined-plane.
The upper contracting end of the tapered ramp and the outer peripheral face of syringe intersect, and the lower extending end of the tapered ramp is forming a kind of small boss A close to the position of syringe outer peripheral face , vascular puncture needle tubing tail end is affixed by this boss A and syringe.
So, the tapered ramp faces the operator for bending to be operated, and is easy to observation.
The perspective portion can use transparent material to be made.
Also include a kind of drive end bearing bracket, this drive end bearing bracket is located at syringe front and affixed with fixed cover, and drive end bearing bracket outer peripheral face smoothly transits with syringe outer peripheral face, syringe leading section is located on the drive end bearing bracket in the downwardly extending wedge shape that contracted in one kind.
Covered after annular seal space with a small boss B, the fixation of blood-collecting needle tube front end is on this boss B.
Blood-collecting needle tube and syringe arranged concentric, and extend along syringe center back.
Blood-collecting needle tube is coated with blood sampling sealing shroud, and blood sample collection pipe pipe close is provided centrally with axially extending to the core bore of sealant, and this core bore internal diameter is more slightly larger than blood sampling sealing shroud external diameter.
So, blood-collecting needle tube band with blood sampling seal pipe along this core bore penetrate pipe close when, blood sampling sealing shroud by axial compression compress radial distorted dilatating and deformable, just with this core bore inner hole wall extrusion friction, will not more allow blood-collecting needle tube deviate from blood sample collection pipe pipe close.
Blood sample collection pipe pipe close sealant thickness is 3-0.5MM, preferably 1.5-0.5MM.
So blood-collecting needle tube can easily wear out sealant.
There is the construction being adapted with blood sample collection pipe pipe close, this constructs the loading and taking-up for not only facilitating blood sample collection pipe, while the annexation to be formed compared with consolidation that is connected with blood sample collection pipe pipe close again in cylindrical cavity.
The further optimization of this construction can be so：Blood sample collection pipe is plugged in cylindrical cavity, and the construction being adapted is the construction that interference fits couple in a kind of size.
It may also is that：Cylindrical cavity inwall, which is circumferentially symmetrically arranged with, is adapted to elastic card tactile construction in place's with blood sample collection pipe pipe close, and when the two, which is in card, touches state, blood-collecting needle tube rear end is just in before sealant to be pierced through.
The blood sample collection pipe being so both conveniently inserted in cylindrical cavity will not fall off out when upright, and the insertion degree of the blood sample collection pipe from being given in sense of touch installed in cylindrical cavity, so that convenient install.
It can be a kind of short arc convex clamping point that this elastic card, which touches construction, or this short arc convex clamping point or blood sample collection pipe pipe close are made up of elastomeric material.
This elastic card, which touches construction, can cause the elastic urgent connection status of cylindrical cavity inwall and pipe close, but when applying axial force, blood sample collection pipe can still do with respect to cylindrical cavity and before push away or retreat freely.
This short arc convex clamping point is exactly a kind of convex salient point on cylindrical cavity inwall of dashing forward as its name suggests, and thickness is low shallow and there is arc-shaped transition front and rear side, in order to which creeping for pipe close is passed through.
Other adaptation connecting structure can also separately be increased on the basis of this elastic card touches construction to be used cooperatively to reach more preferable using effect, the following is using cooperatively that one of which optimizes：
The construction being adapted in cylindrical cavity with pipe close is a kind of tactile construction of the circumferentially distributed or symmetrical elastic card of a plurality of inwalls along cylindrical cavity, and another construction being adapted is the L being produced on pipe close outer peripheral face Shape groove and the prominent salient point being produced on cylindrical cavity inwall, the prominent salient point enter L from the termination of the L shape groove vertical sections positioned at pipe close front end face Shape groove can simultaneously be slided wherein, when cylindrical cavity inwall and tactile pipe close elastic card, and the prominent salient point has been enter into L Reach in vertical section in shape groove but not yet the bottom of the vertical section, now blood-collecting needle tube rear end is just in before sealant to be pierced through, after sinciput blood sample collection pipe to blood-collecting needle tube pierces through sealant, the prominent salient point just reaches the bottom of the vertical section, blood sample collection pipe is now rotated, the prominent salient point enters Cross break section in L shape grooves.
So, L In shape groove cross break section can be with locked blood sample collection pipe in the axial direction the free degree, make its with respect to syringe can neither before push away and can not retreat.
Can be so again：Blood sample collection pipe screw thread is connected in cylindrical cavity, and the construction being adapted is a kind of threaded connection configuration.
Blood sample collection pipe pipe close is made up of seal rubber plug and protection cap, and fluid sealant plug sleeve plug is in collecting pipe tube chamber, and protection cap lid plug is on the collecting pipe mouth of pipe and seal rubber plug.
The construction being adapted with cylindrical cavity is generally located in protection cap.
The length of cylindrical cavity is less than the length of blood sample collection pipe, and the afterbody for the blood sample collection pipe being nested with cylindrical cavity is exposed outside cylindrical cavity.
Syringe is having a kind of strip grooves as operation window with being contained in blood sample collection pipe pipe close on the position being adapted in syringe along syringe is axially arranged, and this operation window has two, and Relative distribution is in the both sides of syringe.
So blood back can be observed by this operation window, observe the state of blood volume in blood sample collection pipe, also the insert state of observable blood sample collection pipe and insertion degree, can also be when extracting blood sample collection pipe, blood sample collection pipe firmly first is exited backward through this operation window grip pipe close, so as to collect the disengaging of tube body and pipe close when preventing from exiting blood sample collection pipe.
A kind of tactile platform is provided with that side outer peripheral face of the close syringe of vascular puncture needle tubing, this touches platform bottom surface in a kind of planar shaped or in a kind of arcs of recesses being adapted with human body ancon.
This tactile platform facilitate syringe and human body by touching, the frictional force of increase syringe and human skin makes syringe be difficult slippage.
A kind of soft deposited wing is provided with that side outer peripheral face of the close syringe of vascular puncture needle tubing, this soft deposited wing is affixed with syringe, and both sides have the span, applies wing bottom surface in a kind of planar shaped or in a kind of arcs of recesses being adapted with human body ancon.
This deposited wing facilitate syringe and human body by touching, the frictional force of increase syringe and human skin makes syringe be difficult slippage.
In summary, the present invention has the following advantages that compared with prior art：Structure simplifies, and holding is easy to operate, and operating process is extremely similar to the operation of conventional syringes, reduces to greatest extent Medical personnel's workload and psychological burden, under the big scene of limb activity amplitude, do not allow to be also easy to produce maloperation, so as to improve the security and Degree of Success of operation even in suffering from unconsciousness, restless, disoperative patient and patient infant yet.And the further intervention of safe shape construction, Hurted sb.'s feelings so as to both ensure that the puncture needle tubing retreated will not be elapsed out again, the disposable of this syringe-type vacuum blood collector of the present invention can also be promoted.
Brief description of the drawings
Fig. 1 is a kind of vacuum blood collection pipe device blood sample collection pipe insert state schematic diagram in the prior art.
Fig. 2 is that a kind of vacuum blood collection pipe device blood sample collection pipe withdraws from view in the prior art.
Fig. 3 is the structural representation sectional plan view for the syringe-type vacuum blood collector that preferred embodiment has telescopic protective cover.
Fig. 4 is the structural representation top view for the syringe-type vacuum blood collector that preferred embodiment has telescopic protective cover.
Fig. 5 be preferred embodiment have telescopic protective cover syringe-type vacuum blood collector take a blood sample after state schematic perspective view.
Fig. 6 be preferred embodiment have telescopic protective cover syringe-type vacuum blood collector take a blood sample after state floor map.
Fig. 7 is that preferred embodiment has drive end bearing bracket structural representation sectional plan view in the syringe-type vacuum blood collector of telescopic protective cover.
Fig. 8 is that preferred embodiment has drive end bearing bracket structural representation section view left view in the syringe-type vacuum blood collector of telescopic protective cover.
More description in detail is carried out to the utility model below in conjunction with the accompanying drawings.
Label declaration：
11 puncture the blood sampling blood sampling sealing shrouds 2 of needle stand 15 of boss B 14 of 12 blood-collecting needle tube of needle tubing, 13 Paracentesis needle holder 131 The telescopic protective cover chamber 4 of 35 operation window of blood sample collection pipe 21 sealant, 3 syringe, 31 boss A, 32 annular seal space, 33 cylindrical cavities 37 applies the closure drive end bearing bracket of tongue piece 6 of the wing 5 The slip cap of 71 fixed cover 72
Embodiment
Most preferred embodiment：
Reference picture 3, Fig. 4, the syringe-type vacuum blood collector with telescopic protective cover, including vascular puncture needle tubing 11, blood-collecting needle tube 12 , blood sample collection pipe 2, syringe 3, apply the wing 4, closure tongue piece 5, drive end bearing bracket 6 and the telescopic protective cover being set in together slided by fixed cover 71 and slip cap 72.Syringe 3 It is a hollow cylindrical barrel-type casing, is made up of medical transparent material.Drive end bearing bracket 6 is located at the front of syringe 3 and affixed with fixed cover 71 in telescopic protective cover, the rear end outer peripheral face of drive end bearing bracket 6 and syringe 3 The sizes such as outer peripheral face smoothly transit, and the leading section of drive end bearing bracket 6 intersects in the downwardly extending wedge shape that contracted in one kind, the outer peripheral face at the upper contracting end and the rear end of drive end bearing bracket 6 of the tapered ramp, and the lower extending end of the tapered ramp is close to drive end bearing bracket 6 Outer peripheral face（I.e. close to case inside edge）Position form a kind of small boss A31, boss A31 centers, which are set, punctures the installation through-hole of needle tubing 11, punctures needle tubing 11 through installation through-hole and along slip cap 72 Inner chamber is axially walked and is finally fixed on Paracentesis needle holder, and Paracentesis needle holder 13 is located at the tail end of slip cap 72 and affixed with syringe 3.Puncture needle tubing 11 and syringe 3 Center parallel but decentered distribution, the needle point of the needle tubing and the major part of needle tubing are exposed outside syringe 3.The inside of syringe 3 has a telescopic protective cover chamber 37, an annular seal space 32 and a cylindrical cavity 33, syringe 3 It is telescopic protective cover chamber 37 to have in the middle part of inner chamber in front of a partition, this partition, and this partition rear is annular seal space 32 and cylindrical cavity 33, and annular seal space 32 is located at the front of cylindrical cavity 33.Puncture needle tubing 11 Tube core connected with the annular seal space 32.The side of Paracentesis needle holder 13 is touched in open recesses and with sealing paste on rear side of this partition of the inner chamber of syringe 3, and the cavity formed is annular seal space 32, the annular seal space 32 Opposite side wall be annular seal space rear wall, the rear side of the rear wall of annular seal space 32 has a small boss B131, and the front end fixation of blood-collecting needle tube 12 is in this boss B131 On, rear end and needle tubing are largely extended back and are plugged in the pipe close of blood sample collection pipe 2, and the tube core of blood-collecting needle tube 12 is connected with the annular seal space 32, blood-collecting needle tube 12 and cylindrical cavity 33 Coaxially.Blood-collecting needle tube 12 is coated with blood sampling sealing shroud 15, and blood sample collection pipe pipe close is provided centrally with axially extending to the core bore of sealant 21, and this core bore internal diameter is than blood sampling sealing shroud 15 External diameter is slightly larger.So, blood-collecting needle tube 12 with blood sampling sealing shroud 15 along this core bore penetrate pipe close when, take a blood sample sealing shroud 15 Radial distorted dilatating and deformable is compressed by axial compression, just with this core bore inner hole wall extrusion friction, will not more allow blood-collecting needle tube 12 to deviate from blood sample collection pipe pipe close.Cylindrical cavity 33 is located at annular seal space 32 Rear and its rear end open, the pipe close of blood sample collection pipe 2 is in preceding screw-casing in the cylindrical cavity 33, and the length of cylindrical cavity 32 is less than the length of blood sample collection pipe 2, is nested with cylindrical cavity 32 In blood sample collection pipe 2 afterbody it is exposed outside cylindrical cavity.Blood sample collection pipe pipe close is made up of seal rubber plug 22 and protection cap 23, and 22 sets of plugs of seal rubber plug are in collecting pipe tube chamber, protection cap 23 Lid plug is on the collecting pipe mouth of pipe and seal rubber plug, and the pipe close aft bulkhead of blood sample collection pipe 2 has a sealant 21 that can be pierced through by the rear end of blood-collecting needle tube 12, and sealant thickness is 1.5MM, blood sample collection pipe 2 The cylindrical cavity 33 of front end face has the accommodating space of the preceding blood sample collection pipe 2 pushed away for this sealant 21 of puncture.The inwall of cylindrical cavity 33 is circumferentially symmetrically arranged with and the protection cap of blood sample collection pipe 2 The tactile construction of elastic card at 23 adaptations, when the two, which is in card, touches state, the rear end of blood-collecting needle tube 12 is just in before sealant to be pierced through.It is a kind of short arc convex clamping point, this short arc convex clamping point and protection cap 23 that this elastic card, which touches construction, It is made up of elastomeric material.Puncture the blood sample collection pipe tube chamber after needle tubing tube core, annular seal space, blood-collecting needle tube tube core and pierced sealant and constitute a kind of blood channel.
Reference picture 5, Fig. 6, syringe 3 with blood sample collection protection of pipe lid 23 There are a kind of strip grooves as operation window 35 along syringe is axially arranged on the position being adapted, this operation window 35 has two, and Relative distribution is in the both sides of syringe 3.
Reference picture 5, Fig. 6, slip cap 72, syringe 3, puncture needle tubing 11, Paracentesis needle holder 13 and blood-collecting needle tube 12 Or even blood sample collection pipe 2 constitutes a kind of relative slide unit for being relatively fixed the slip of set 71.At the end of blood sampling, can pusher syringe 3, slip cap 72 is relatively fixed set 71 with the retrogressing of syringe 3 Slide backward, be also retracted into gradually in the inner chamber of fixed cover 71 also with the puncture needle tubing 11 drawn back, until submerging completely in the inner chamber of fixed cover 71.Blood sample collection pipe 2 can be now extracted backward, make itself and syringe 3 Depart from.
Reference picture 7, Fig. 8, also include a kind of non-return device, and the non-return device is a kind of elastic symmetry closure tongue piece 5, installed in boss A31 In the inner chamber of drive end bearing bracket 6 at rear, puncture the tail end of needle tubing 11 and wore the closure joint portion of this closure tongue piece 5 and be finally fixed on Paracentesis needle holder 13.
So, after puncture needle tubing is removed, closure tongue piece 5 elastic reset blocks former puncture needle tubing 11 Outlet.Prevent to retreat slide unit in place can not before push away.So as to both ensure the puncture needle tubing 11 retreated It will not again elapse out and hurt sb.'s feelings, this syringe-type vacuum blood collector of the present invention can also be promoted disposable, will not be reused by criminal.
Reference picture 3, Fig. 4, puncture and a kind of soft deposited wing 4 are provided with close syringe 3 that side outer peripheral face of needle tubing 11 , this soft deposited both sides of the wing 4 has the span, applies wing bottom surface in a kind of arcs of recesses being adapted with human body ancon, applies the bottom surface of the wing 4 and set sticky glue point.
The not described part of the present embodiment is same as the prior art.

Claims (24)

  1. Syringe-type vacuum blood collector with telescopic protective cover, including vascular puncture needle tubing, blood-collecting needle tube and blood sample collection pipe, it is characterized in that, also include a kind of syringe and a kind of telescopic protective cover being set in together by fixed cover and slip cap slip, syringe and slip cap tail end are affixed, the tail end of vascular puncture needle tubing bias in the way of close to syringe outer peripheral face is plugged on Paracentesis needle holder, the needle point of the needle tubing and the major part of needle tubing are exposed outside syringe, there is an annular seal space and a cylindrical cavity inside syringe, wherein annular seal space is located at before cylindrical cavity, the tube core of vascular puncture needle tubing is connected with the annular seal space, the front end of blood-collecting needle tube is installed with the capsule walls, rear end and needle tubing largely extend back and are plugged in the pipe close of blood sample collection pipe, the tube core of blood-collecting needle tube is connected with the annular seal space, the rear and its rear end that cylindrical cavity is located at annular seal space are opened, blood sample collection pipe pipe close is nested with the cylindrical cavity preceding in removable mode, blood sample collection pipe pipe close aft bulkhead has a sealant that can be pierced through by blood-collecting needle tube rear end , The cylindrical cavity of blood sample collection pipe front end face has the space that the preceding blood sample collection tube capacity pushed away is put for this sealant of puncture, vascular puncture needle tubing tube core, annular seal space, blood sample collection pipe tube chamber after blood-collecting needle tube tube core and pierced sealant constitutes a kind of blood channel, Paracentesis needle holder is located at slip cap tail end and affixed with syringe, Paracentesis needle holder inner chamber is annular seal space, needle tubing is punctured axially to walk and be finally fixed on Paracentesis needle holder along slip cap inner chamber, slip cap, syringe, puncture needle tubing, Paracentesis needle holder and blood-collecting needle tube or even a kind of relative slide unit for being relatively fixed set slip of blood sample collection pipe composition, retracted to as the retrogressing of slide unit punctures needle tubing in fixed cover inner chamber.
  2. According to claim 1 The described syringe-type vacuum blood collector with telescopic protective cover; it is characterized in that; also include a kind of non-return device; this non-return device is arranged between slide unit and fixed cover, if being pushed away before the retrogressing slide unit that extremely puncture needle tubing is retracted into fixed cover inner chamber is reverse will prevent to contact with this non-return device.
  3. According to claim 2 The described syringe-type vacuum blood collector with telescopic protective cover; it is characterized in that; the non-return device is a kind of elastic symmetry closure tongue piece; in front of Paracentesis needle holder, in the inner chamber of fixed cover front bulkhead; needle tubing tail end is punctured to wear the closure joint portion of this closure tongue piece and be fixed on Paracentesis needle holder; after puncture needle tubing is removed, tongue piece elastic reset blocks former puncture barrel outlet.
  4. According to claim 1 The described syringe-type vacuum blood collector with telescopic protective cover, it is characterised in that the vascular puncture needle tubing and the center parallel of syringe arranged and extended forward close to syringe outer peripheral face.
  5. According to claim 1 The described syringe-type vacuum blood collector with telescopic protective cover, it is characterised in that annular seal space is the perspective portion on a kind of blood back cavity, the position that syringe outer peripheral face is adapted with the annular seal space with observable blood back.
  6. According to claim 1 The described syringe-type vacuum blood collector with telescopic protective cover, it is characterised in that syringe leading section is in the downwardly extending wedge shape that contracted in one kind, and vascular puncture needle tubing is affixed in the wedge-shaped lower extending end head and syringe, and the perspective portion of observable blood back is located on the wedge-shaped inclined-plane.
  7. According to claim 6
    The described syringe-type vacuum blood collector with telescopic protective cover, it is characterised in that the upper contracting end of the tapered ramp and the outer peripheral face of syringe intersect, the lower extending end of the tapered ramp is forming a kind of small boss close to the position of syringe outer peripheral face A, vascular puncture needle tubing tail end is affixed by this boss A and syringe.
  8. According to claim 1 The described syringe-type vacuum blood collector with telescopic protective cover; it is characterized in that; also include a kind of drive end bearing bracket; this drive end bearing bracket is located in front of syringe and affixed with fixed cover; drive end bearing bracket outer peripheral face smoothly transits with syringe outer peripheral face, and syringe leading section is located on the drive end bearing bracket in the downwardly extending wedge shape that contracted in one kind.
  9. The syringe-type vacuum blood collector with telescopic protective cover according to claim 1, it is characterised in that covered after annular seal space with a small boss B , the fixation of blood-collecting needle tube front end is on this boss B.
  10. According to claim 1 The described syringe-type vacuum blood collector with telescopic protective cover, it is characterised in that blood-collecting needle tube and syringe arranged concentric, and extend along syringe center back.
  11. According to claim 1 or 10 The described syringe-type vacuum blood collector with telescopic protective cover; it is characterized in that; blood-collecting needle tube is coated with blood sampling sealing shroud; blood sample collection pipe pipe close is provided centrally with axially extending to the core bore of sealant; this core bore internal diameter is more slightly larger than blood sampling sealing shroud external diameter; blood-collecting needle tube band with blood sampling seal pipe along this core bore penetrate pipe close when, blood sampling sealing shroud by axial compression compress radial distorted dilatating and deformable, with this core bore inner hole wall extrusion friction.
  12. The syringe-type vacuum blood collector with telescopic protective cover according to claim 1, it is characterised in that blood sample collection pipe pipe close sealant thickness is 3-0.5MM 。
  13. The syringe-type vacuum blood collector with telescopic protective cover according to claim 12, it is characterised in that blood sample collection pipe pipe close sealant thickness is 1.5-0.5MM 。
  14. According to claim 1 The described syringe-type vacuum blood collector with telescopic protective cover; it is characterized in that; there is the construction being adapted with blood sample collection pipe pipe close in cylindrical cavity; thus its annexation to be formed compared with consolidation that is connected with blood sample collection pipe pipe close, blood sample collection Guan Jing constructs loading and takes out cylindrical cavity.
  15. According to claim 14 The described syringe-type vacuum blood collector with telescopic protective cover, it is characterised in that blood sample collection pipe is plugged in cylindrical cavity, the construction being adapted is the construction that interference fits couple in a kind of size.
  16. According to claim 14 The described syringe-type vacuum blood collector with telescopic protective cover; it is characterized in that; cylindrical cavity inwall, which is circumferentially symmetrically arranged with, is adapted to elastic card tactile construction in place's with blood sample collection pipe pipe close; when the two, which is in card, touches state; blood-collecting needle tube rear end is just in before sealant to be pierced through; construction cylindrical cavity inwall is touched through thus elastic card and pipe close forms elastic urgent connection status, but this elastic drag is less than the axial force applied manually.
  17. According to claim 16 The described syringe-type vacuum blood collector with telescopic protective cover, it is characterised in that it can be a kind of short arc convex clamping point that this elastic card, which touches construction, or this short arc convex clamping point or blood sample collection pipe pipe close are made up of elastomeric material.
  18. According to claim 17 The described syringe-type vacuum blood collector with telescopic protective cover, it is characterised in that this short arc convex clamping point is a kind of convex salient point on cylindrical cavity inwall of dashing forward, thickness is low shallow and front and rear side has and is easy to pipe close to creep the arc-shaped transition passed through.
  19. According to claim 14 The described syringe-type vacuum blood collector with telescopic protective cover; it is characterized in that; the construction being adapted in cylindrical cavity with pipe close is a kind of tactile construction of the circumferentially distributed or symmetrical elastic card of a plurality of inwalls along cylindrical cavity, and another construction being adapted is produced on pipe close outer peripheral face L shapes groove and the prominent salient point being produced on cylindrical cavity inwall, the prominent salient point enter L from the termination of the L shape groove vertical sections positioned at pipe close front end face Shape groove can simultaneously be slided wherein, when cylindrical cavity inwall and tactile pipe close elastic card, and the prominent salient point has been enter into L Reach in vertical section in shape groove but not yet the bottom of the vertical section, now blood-collecting needle tube rear end is just in before sealant to be pierced through, after sinciput blood sample collection pipe to blood-collecting needle tube pierces through sealant, the prominent salient point just reaches the bottom of the vertical section, blood sample collection pipe is now rotated, the prominent salient point enters Cross break section in L shape grooves.
  20. According to claim 14 The described syringe-type vacuum blood collector with telescopic protective cover, it is characterised in that blood sample collection pipe screw thread is connected in cylindrical cavity, the construction being adapted is a kind of threaded connection configuration.
  21. According to claim 1 The described syringe-type vacuum blood collector with telescopic protective cover, it is characterised in that blood sample collection pipe pipe close is made up of seal rubber plug and protection cap, fluid sealant plug sleeve plug is in collecting pipe tube chamber, and protection cap lid plug is on the collecting pipe mouth of pipe and seal rubber plug.
  22. According to claim 1 The described syringe-type vacuum blood collector with telescopic protective cover, it is characterised in that the length of cylindrical cavity is less than the length of blood sample collection pipe, the afterbody for the blood sample collection pipe being nested with cylindrical cavity is exposed outside cylindrical cavity.
  23. According to claim 1 The described syringe-type vacuum blood collector with telescopic protective cover; it is characterized in that; syringe is having a kind of strip grooves as operation window with being contained in blood sample collection pipe pipe close on the position being adapted in syringe along syringe is axially arranged, and this operation window has two, and Relative distribution is in the both sides of syringe.
  24. According to claim 1 The described syringe-type vacuum blood collector with telescopic protective cover, it is characterised in that be provided with a kind of tactile platform on that side outer peripheral face of the close syringe of vascular puncture needle tubing, this touches platform bottom surface in a kind of planar shaped or in a kind of arcs of recesses being adapted with human body ancon.
CN201280074569.1A 2012-08-02 2012-08-02 Syringe type vacuum blood collector with telescopic protective sleeve Active CN104470440B (en)

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CN109069222A (en) * 2016-03-28 2018-12-21 贝克顿·迪金森公司 It is intubated positioning device
CN109893142A (en) * 2019-04-16 2019-06-18 上海金塔医用器材有限公司 Flexible blood-taking device and rigid blood-taking device

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CN110236567B (en) * 2019-06-18 2022-05-31 杭州医学院 Blood sampling device
CN110960231B (en) * 2019-11-27 2022-08-19 中国大熊猫保护研究中心 Panda blood sampling device

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CN109893142B (en) * 2019-04-16 2023-11-17 上海金塔医用器材有限公司 Flexible blood sampling device and rigid blood sampling device

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Effective date of registration: 20230909

Address after: Building S3 #, Medical Equipment Industrial Park, Industrial New Area, No. 66 Tingzhou Avenue South Road, Cewu Town, Changting County, Longyan City, Fujian Province, 366309

Patentee after: Bestway (Changting) Medical Devices Co.,Ltd.

Address before: No. 27, Lane 45, Kaohsiung Road, Huangpu District, Shanghai, 200011

Patentee before: Zhang Jianming