CN204121525U - Two safe type venous retaining needle - Google Patents
Two safe type venous retaining needle Download PDFInfo
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- CN204121525U CN204121525U CN201420513633.8U CN201420513633U CN204121525U CN 204121525 U CN204121525 U CN 204121525U CN 201420513633 U CN201420513633 U CN 201420513633U CN 204121525 U CN204121525 U CN 204121525U
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- needle
- safety
- safety clamp
- needle tubing
- safe type
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Abstract
This utility model relates to a kind of medical apparatus and instruments, disclose a kind of two safe type venous retaining needle, it comprises needle stand, needle tubing, casing seat and sleeve pipe, the rear end of needle tubing is fixed on needle stand, its front end is successively through casing seat and sleeve pipe, remaining needle also comprises anti-safety of acupuncture device and positive pressure connector, and positive pressure connector is connected with casing seat by flexible pipe; Anti-safety of acupuncture device is between needle stand and casing seat, and it comprises chuck and the safety clamp be located in chuck and safety disc, and needle tubing is provided with protuberance.This utility model is after completing puncture procedure in withdraw of the needle process, when the jut of needle tubing is blocked by safety disc, the needle point of needle tubing just in time falls back in safety clamp, and needle point is blocked in this safety clamp, avoid the needle point of needle tubing to depart from safety clamp and exposed, and then avoid needle pricks medical worker; Meanwhile, after transfusion completes, when syringe is extracted, positive pressure connector forms downward malleation, makes medicinal liquid continue to push forward, and condensation forms clot at sleeve pipe place to prevent blood backflow.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly relates to a kind of two safe type venous retaining needle.
Background technology
Venous detaining needle is a kind of medical apparatus and instruments for vein detaining needle for fluids infusion, and it is mainly used in clinical vein puncture and carries out sick body medication and nutrition supply.Conventional remaining needle is pressed in casing seat by batching pig, relies on the resistance of batching pig and casing seat interference fit, stops liquid infiltration during transfusion, ensure that the sealing of remaining needle during conventional infusion.
Traditional remaining needle needs to exit draw point after completing technology operation, and draw point needle point is completely outside exposed, easily stabs medical personnel, causes the propagation of infectious disease, particularly hepatitis B and acquired immune deficiency syndrome (AIDS), can cause very large injury to the physical and mental health of medical personnel.
More existing safe type retention needles, after draw point exits, with metal clip clamping needle nose part, to reach the effect of closed needle point, and are equipped with calparine cap (having needle adapter) to be applicable to clinical vein puncture repeatedly use.With metal clip clamping needle nose part, when Clinical practice, metal clip has the risk come off, and can cause the malpractice of needle pricks operator; When using calparine cap, after transfusion, easily at sleeve pipe place, condensation forms clot to blood backflow, and the rubber blanket of calparine cap easily produces puncture exfoliation, does not meet health care requirement.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of two safe type venous retaining needle, and during to avoid the needle tubing withdraw of the needle, needle point is exposed and stab medical worker, and after avoiding infusing blood backflow at sleeve pipe place, condensation forms clot.
(2) technical scheme
In order to solve the problems of the technologies described above, the two safe type venous retaining needle of the one that this utility model provides, it comprises needle stand, needle tubing, casing seat and sleeve pipe, the rear end of described needle tubing is fixed on described needle stand, its front end is successively through described casing seat and sleeve pipe, described remaining needle also comprises anti-safety of acupuncture device and positive pressure connector, and described positive pressure connector is connected with casing seat by flexible pipe; Described anti-safety of acupuncture device is between described needle stand and casing seat, and it comprises chuck and the safety clamp be located in described chuck and safety disc, and described safety clamp is positioned at the front of described safety disc;
The front-end and back-end of described chuck, the front-end and back-end of described safety clamp and described safety disc are respectively equipped with the through hole allowing described needle tubing to pass, described needle tubing is provided with protuberance, described protuberance is stuck in the through hole of described safety disc when the described needle tubing withdraw of the needle, the needle point of described needle tubing is clamped in described safety clamp when described protuberance is stuck in the through hole of described safety disc.
In above-mentioned two safe type venous retaining needles, described positive pressure connector comprises shell, base, back-moving spring and piston, the one end open of described shell, its other end and hose connection, described floor installation is in shell and hose connection one end, described base has protruding cylinder, and one end of described back-moving spring is enclosed within described cylinder, and its other end cover has described piston.
In above-mentioned two safe type venous retaining needles, described positional safety clamp is flexible, front end compressive deformation when described needle tubing passes of described safety clamp, and when extremely departing from the through hole of the front end of safety clamp in the described needle tubing withdraw of the needle, elastic recovery occurs and makes the through hole of the front end of described safety clamp depart from the axis of described needle tubing.
In above-mentioned two safe type venous retaining needles, described safety clamp is enclosed by flexure strip and forms, the forward and backward two ends of described safety clamp are the projection relatively in the middle part of it, described needle tubing through the forward and backward two ends of described safety clamp projection and pass from the top at the middle part of described safety clamp.
In above-mentioned two safe type venous retaining needles, the side that the projection of the front end of described safety clamp is connected with the middle part of described safety clamp is inclined-plane, and the needle point of described needle tubing is clamped in when the withdraw of the needle in the projection of the front end of described safety clamp.
In above-mentioned two safe type venous retaining needles, described safety disc is L-type, and it is connected in described chuck.
In above-mentioned two safe type venous retaining needles, the rear end of described safety clamp is fixed in described chuck by barb.
In above-mentioned two safe type venous retaining needles, described barb and described safety clamp one-body molded.
In above-mentioned two safe type venous retaining needles, the front end of described chuck is provided with breach.
In above-mentioned two safe type venous retaining needles, the front end of described chuck and described casing seat clamping, its rear end and described needle stand grafting.
(3) beneficial effect
The two safe type venous retaining needle of the one that technique scheme provides, serve the effect that dual safety ensures, first, carry out after completing puncture procedure in the process of the withdraw of the needle, when the jut of needle tubing is blocked by safety disc, the needle point of needle tubing just in time falls back in safety clamp, and needle point is blocked in this safety clamp, the needle point of needle tubing can be avoided thus to depart from safety clamp and exposed, and then avoid needle pricks medical worker; Meanwhile, after transfusion completes, when syringe is extracted, positive pressure connector forms downward malleation, makes medicinal liquid continue to push forward, and condensation forms clot at sleeve pipe place to prevent blood backflow, ensures to inject successfully next time.
Accompanying drawing explanation
Fig. 1 is the structural representation of the two safe type venous retaining needle of this utility model embodiment;
Internal structure schematic diagram when Fig. 2 is the positive pressure connector transfusion of this utility model embodiment;
Fig. 3 is the internal structure schematic diagram after the positive pressure connector transfusion of this utility model embodiment
Fig. 4 is the partial exploded view of two safe type venous retaining needles of this utility model embodiment;
The internal structure schematic diagram of anti-safety of acupuncture device when Fig. 5 is this utility model embodiment inserting needle;
The internal structure schematic diagram of anti-safety of acupuncture device when Fig. 6 is the withdraw of the needle of this utility model embodiment.
Wherein, 1, sleeve pipe; 2, rivet; 3, casing seat; 31, boss; 4, plug; 5, needle tubing; 51, protuberance; 52, needle point; 6, anti-safety of acupuncture device; 61, chuck; 62, safety clamp; 63, safety disc; 64, baffle plate; 65, barb; 66, breach; 67, observation window; 68, draw-in groove; 7, needle stand; 8, flexible pipe; 9, flow-stopping clip; 10, positive pressure connector; 11, shell; 12, base; 13, back-moving spring; 14, piston; 15, cylinder; 20, syringe.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples for illustration of this utility model, but are not used for limiting scope of the present utility model.
First, it is pointed out that the present embodiment with needle tubing inserting needle direction for front, and withdraw of the needle direction is rear.
As shown in Figure 1 and Figure 4, the two safe type venous retaining needle of one of the present utility model, it comprises needle stand 7, needle tubing 5, casing seat 3 and sleeve pipe 1, the front end of casing seat 3 is connected with sleeve pipe 1 by rivet 2, its rear end is provided with plug 4, the rear end of needle tubing 5 is fixedly connected with needle stand 7, its front end is also inserted in casing seat 3 and sleeve pipe 1 successively through plug 4, the remaining needle of the present embodiment also comprises anti-safety of acupuncture device 6 and positive pressure connector 10, positive pressure connector 10 is connected with casing seat 3 by flexible pipe 8, and is provided with flow-stopping clip 9 on flexible pipe 8; Anti-safety of acupuncture device 6 is located between needle stand 7 and casing seat 3, it is exposed and stab medical worker when this anti-safety of acupuncture device 6 is for preventing the needle tubing withdraw of the needle, it comprises chuck 61 and the safety clamp 62 be located in this chuck 61 and safety disc 63, and safety clamp 62 is positioned at the front of safety disc 63.
The front-end and back-end of the chuck 61 of the present embodiment, the front-end and back-end of safety clamp 62 and safety disc 63 are respectively equipped with the through hole allowing needle tubing 5 to pass, needle tubing 5 is provided with protuberance 51, this protuberance 51 is positioned at the front of safety disc 63, the external diameter of protuberance 51 is greater than the aperture of the through hole of safety clamp 62 and is less than the aperture of the through hole of safety disc 63, the aperture that the external diameter of protuberance 51 is greater than the through hole of safety clamp 62 can guarantee that needle tubing 5 punctures smoothly, and the length of safety clamp can be reduced, as shown in Figure 5, the through hole being less than safety disc 63 is then to make protuberance 51 be stuck on the through hole of safety disc 51 when needle tubing 5 withdraw of the needle, as shown in Figure 6, needle tubing 5 can be avoided thus to pass anti-safety of acupuncture device 6 backward, in addition to ensure that this protuberance 51 is less than the distance of safety disc 63 to the front end of safety clamp 62 to the distance of needle point 52, be clamped in when protuberance 51 is stuck in the through hole of safety disc in safety clamp 62 to make needle point 52, needle point can be stopped to make it to pass from the front end of safety clamp and outside exposed, the needle point due to needle tubing can be avoided to expose and stab the problem of foreign body personnel.Meanwhile, the positive pressure connector 10 of the present embodiment is when syringe 20 is extracted, and positive pressure connector forms downward malleation, makes medicinal liquid continue to push forward, and condensation forms clot at sleeve pipe place to prevent blood backflow, ensures to inject successfully next time.Thus, the present embodiment serves the effect of two safety guarantee.
The positive pressure connector 10 of the present embodiment comprises shell 11, base 12, back-moving spring 13 and piston 14, the one end open of shell 11, its other end is connected with flexible pipe 8, base 12 is arranged on one end that shell 11 is connected with flexible pipe 8, base 12 has protruding cylinder 15, one end of back-moving spring 13 is enclosed within cylinder 15, its other end cover has piston 14, when infusing, as shown in Figure 2, syringe inserts from the opening of shell 11 and presses piston 14, back-moving spring 13 is made to be in compressive state, when syringe 20 is transferred to, as shown in Figure 3, there is elastic recovery in back-moving spring 13, piston 14 moves upward, downward malleation is formed to flexible pipe, medicinal liquid is made to continue to push forward, avoid blood backflow thus.In addition, between the two ends and shell of piston, be respectively equipped with sealing ring, between base and shell, be also provided with sealing ring.
The safety clamp 62 of the present embodiment has elasticity, front end compressive deformation when needle tubing 5 passes of this safety clamp, as shown in Figure 5, and when extremely departing from the through hole of the front end of safety clamp 62 in needle tubing 5 withdraw of the needle, there is elastic recovery departs from needle tubing 5 axis with the through hole of the front end making safety clamp 62, needle point can be stopped thus to make it to pass from the front end of safety clamp and outside exposed, as shown in Figure 6; In processing test process, the front end of safety clamp can be made needle tubing can be made to pass by external force deformation.
As shown in Figure 5 and Figure 6, be provided with baffle plate 64 in the chuck 61 of the present embodiment, safety disc 63 to be fixed on this baffle plate 64 and to be positioned at the front of this baffle plate 64, can guarantee that safety disc 63 fixedly secures installation, and on this baffle plate 64, being provided with the through hole allowing needle tubing 5 to pass, needle tubing 5 is through the through hole of this baffle plate 64.Preferably, safety disc 63 is L-type, its crosspiece is connected between the edge of baffle plate 64 and the inwall of chuck 61, the perpendicular section of safety disc 63 to be pressed on baffle plate 64 and to be provided with the through hole allowing needle tubing 5 to pass, form safety disc 63 thus and hang upside down the form on baffle plate, owing to being only subject to the pressuring action of needle tubing 5 at needle tubing 5 withdraw of the needle direction safety disc 63, therefore, the L-type structural safety sheet 63 of this reversal of the natural order of things on baffle plate 64 not easily departs from baffle plate 64.
The safety clamp 62 of the present embodiment is enclosed by flexure strip and forms, and its side in the form of a ring.The rear end of the safety clamp 62 of the present embodiment is fixed in chuck 61 by barb 65.This barb 65 is preferred and safety clamp 62 is one-body molded.The forward and backward two ends of the safety clamp 62 of the present embodiment are the projection relatively in the middle part of it, needle tubing 5 passes the projection at the forward and backward two ends of safety clamp and passes from the top at the middle part of this safety clamp, make safety clamp 62 can clamp needle tubing 5 thus, make needle tubing 5 and sleeve pipe 1 carry out accurate contraposition, improve the accuracy of puncture.In addition, the side that the projection of the front end of safety clamp 62 is connected with the middle part of safety clamp 62 is inclined-plane, make this safety clamp and needle tubing be easy to install, and the needle point of needle tubing is clamped in the projection of the front end of safety clamp, can improve safety when the withdraw of the needle.
The front end of the chuck of the present embodiment is provided with breach 66, make in processing and debugging process, as needle point 52 be limited in safety clamp 62 time, by instrument, the front end of safety clamp deformed and then needle point 52 passed, thus facilitating the installation in process of production of this remaining needle.
The chuck 61 of the present embodiment is provided with observation window 67, and this observation window 67 is located between safety clamp 62 and safety disc 63, and this observation window 67 is the installation sites conveniently observing safety disc 63 and safety clamp 62 in chuck 61, and convenient process of observing needle tubing 5 withdraw of the needle.
The front end of the chuck 61 of the present embodiment and casing seat 3 clamping of thimble assembly, its rear end and needle stand 7 grafting.Particularly: arrange boss 31 in the rear end of casing seat 3, correspondingly, arrange the draw-in groove 68 matched with this boss 31 in the front end of chuck 61, chuck 61 and casing seat 3 are by boss 31 and draw-in groove 68 clamping; And pipe box is set in the rear end of chuck 61, the front end of needle stand 7 arranges the socket matched with this pipe box, and needle stand is plugged in the pipe box of chuck by this socket.Further, the lateral wall of chuck 61 is also provided with anti-skidding projection.
Two safe type venous retaining needles of the present embodiment, carry out after completing puncture procedure in the process of the withdraw of the needle, when the jut of needle tubing is blocked by safety disc, the needle point of needle tubing just in time falls back in the projection of the front end of safety clamp, and now, the front end of safety clamp elastic recovery occurs as tilted, the through hole of the front end of safety clamp is made to depart from the axis of needle tubing, needle point is blocked in this safety clamp, the needle point of needle tubing can be avoided thus to depart from safety clamp and exposed, and then avoids needle pricks medical worker.Meanwhile, after transfusion completes, when syringe is extracted, positive pressure connector forms downward malleation, makes medicinal liquid continue to push forward, and condensation forms clot at sleeve pipe place to prevent blood backflow, ensures to inject successfully next time.To sum up, the remaining needle of the present embodiment serves the effect of two safety guarantee.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from this utility model know-why; can also make some improvement and replacement, these improve and replace and also should be considered as protection domain of the present utility model.
Claims (10)
1. a two safe type venous retaining needle, it comprises needle stand, needle tubing, casing seat and sleeve pipe, the rear end of described needle tubing is fixed on described needle stand, its front end is successively through described casing seat and sleeve pipe, it is characterized in that, described remaining needle also comprises anti-safety of acupuncture device and positive pressure connector, and described positive pressure connector is connected with casing seat by flexible pipe; Described anti-safety of acupuncture device is between described needle stand and casing seat, and it comprises chuck and the safety clamp be located in described chuck and safety disc, and described safety clamp is positioned at the front of described safety disc;
The front-end and back-end of described chuck, the front-end and back-end of described safety clamp and described safety disc are respectively equipped with the through hole allowing described needle tubing to pass, described needle tubing is provided with protuberance, described protuberance is stuck in the through hole of described safety disc when the described needle tubing withdraw of the needle, the needle point of described needle tubing is clamped in described safety clamp when described protuberance is stuck in the through hole of described safety disc.
2. two safe type venous retaining needle as claimed in claim 1, it is characterized in that, described positive pressure connector comprises shell, base, back-moving spring and piston, the one end open of described shell, its other end and hose connection, described floor installation is in shell and hose connection one end, and described base has protruding cylinder, one end of described back-moving spring is enclosed within described cylinder, and its other end cover has described piston.
3. two safe type venous retaining needle as claimed in claim 1, it is characterized in that, described positional safety clamp is flexible, front end compressive deformation when described needle tubing passes of described safety clamp, and when extremely departing from the through hole of the front end of safety clamp in the described needle tubing withdraw of the needle, elastic recovery occurs and makes the through hole of the front end of described safety clamp depart from the axis of described needle tubing.
4. two safe type venous retaining needle as claimed in claim 3, it is characterized in that, described safety clamp is enclosed by flexure strip and forms, the forward and backward two ends of described safety clamp are the projection relatively in the middle part of it, described needle tubing through the forward and backward two ends of described safety clamp projection and pass from the top at the middle part of described safety clamp.
5. two safe type venous retaining needle as claimed in claim 4, it is characterized in that, the side that the projection of the front end of described safety clamp is connected with the middle part of described safety clamp is inclined-plane, and the needle point of described needle tubing is clamped in when the withdraw of the needle in the projection of the front end of described safety clamp.
6. the two safe type venous retaining needles as described in any one of claim 1-3, is characterized in that, described safety disc is L-type, and it is connected in described chuck.
7. the two safe type venous retaining needles as described in any one of claim 1-3, is characterized in that, the rear end of described safety clamp is fixed in described chuck by barb.
8. safe type venous retaining needle as claimed in claim 7 two, is characterized in that, described barb and described safety clamp one-body molded.
9. the two safe type venous retaining needles as described in any one of claim 1-3, is characterized in that, the front end of described chuck is provided with breach.
10. the two safe type venous retaining needles as described in any one of claim 1-3, is characterized in that, the front end of described chuck and described casing seat clamping, its rear end and described needle stand grafting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420513633.8U CN204121525U (en) | 2014-09-05 | 2014-09-05 | Two safe type venous retaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420513633.8U CN204121525U (en) | 2014-09-05 | 2014-09-05 | Two safe type venous retaining needle |
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| Publication Number | Publication Date |
|---|---|
| CN204121525U true CN204121525U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420513633.8U Active CN204121525U (en) | 2014-09-05 | 2014-09-05 | Two safe type venous retaining needle |
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| CN (1) | CN204121525U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104922759A (en) * | 2015-06-24 | 2015-09-23 | 湛江健力源医疗用品有限公司 | Remaining needle |
| CN105363098A (en) * | 2015-12-18 | 2016-03-02 | 杭州富善医疗器械有限公司 | Anti-acupuncture venous indwelling needle |
| CN106730146A (en) * | 2017-01-24 | 2017-05-31 | 盛林 | A kind of Novel anti-stab hinders transfusion needle |
| WO2023272435A1 (en) * | 2021-06-28 | 2023-01-05 | 福建省百仕韦医用高分子股份有限公司 | Snap piece locking type anti-needle puncture indwelling needle |
-
2014
- 2014-09-05 CN CN201420513633.8U patent/CN204121525U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104922759A (en) * | 2015-06-24 | 2015-09-23 | 湛江健力源医疗用品有限公司 | Remaining needle |
| CN105363098A (en) * | 2015-12-18 | 2016-03-02 | 杭州富善医疗器械有限公司 | Anti-acupuncture venous indwelling needle |
| CN105363098B (en) * | 2015-12-18 | 2018-10-19 | 杭州富善医疗器械有限公司 | A kind of anti-venous indwelling needle |
| CN106730146A (en) * | 2017-01-24 | 2017-05-31 | 盛林 | A kind of Novel anti-stab hinders transfusion needle |
| WO2023272435A1 (en) * | 2021-06-28 | 2023-01-05 | 福建省百仕韦医用高分子股份有限公司 | Snap piece locking type anti-needle puncture indwelling needle |
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