CN202478300U - Safety indwelling needle - Google Patents
Safety indwelling needle Download PDFInfo
- Publication number
- CN202478300U CN202478300U CN2012200387383U CN201220038738U CN202478300U CN 202478300 U CN202478300 U CN 202478300U CN 2012200387383 U CN2012200387383 U CN 2012200387383U CN 201220038738 U CN201220038738 U CN 201220038738U CN 202478300 U CN202478300 U CN 202478300U
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- China
- Prior art keywords
- steel needle
- draw point
- guide tube
- base
- recycling tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model belongs to medical instruments and particularly relates to a safety indwelling needle which comprises a steel needle, a steel needle base, a soft guide tube and a guide tube base. The steel needle and the soft guide tube are respectively fixed to front ends of the steel needle base and the guide tube base. The steel needle is arranged in the soft guide tube. The tail end of the steel needle base is fixedly provided with a recycling tank with a hollow interior. A guide groove is arranged on the outer wall of the recycling tank. The steel needle base is fixedly provided with a sliding piece matched with the guide groove. The tail end of the steel needle base is provided with a block button. A lock opening corresponding to the block button is arranged on the rear end of the recycling tank and is fixed by the block button. A protruding block is arranged at the bottom end of the guide tube base. A slot matched with the protruding block is arranged in the recycling tank. After successful puncture, the safety indwelling needle can drive the steel needle base to move through the sliding piece on the steel needle base, and the steel needle can be recycled and placed into the recycling tank to prevent a steel needle point from exposing to the outside so that puncture wound and cross infection can be avoided. The protruding block at the tail end of the guide tube matches with the slot in the recycling tank and can screw in or out of the slot to enable the guide tube and the recycling tank to be locked or move relatively.
Description
Technical field
This utility model relates to a kind of safety indwelling needle, is used for quiet (moving) arteries and veins transfusion (blood), belongs to medical apparatus and instruments.
Background technology
Safety indwelling needle is used clinical at present widely, and it adopts the form of flexible catheter cover draw point, and flexible catheter and draw point puncture after the human vas success simultaneously; Extract draw point out and flexible catheter is retained in human vas; It can keep somewhere a couple of days at blood vessel, reduces the patient because of the misery that venipuncture repeatedly causes reaches the fear to having an injection, and alleviates patient's impatience; Be convenient to the infusion of the rescue medication of clinical application and critical, critical patient, alleviate nurse's workload.
Common safety indwelling needle is after clinical puncture finishes, and the draw point of extraction is because of can not in time handling, perhaps in depleted process; Can not effectively protect draw point; Make that in this process exposed needle point is stabbed/scratched patient or associated care personnel formation easily, causes cross infection.Therefore after the success of safety indwelling needle puncture vessel, it is clinical pressing for that draw point is reclaimed protection.
The utility model content
According to above deficiency of the prior art, the technical problem that this utility model will solve is: the draw point that provides a kind of and carry the draw point retracting device, can avoid going out of use stings the safety indwelling needle that injures cross infection.
This utility model solves the technical scheme that its technical problem adopted: described a kind of safety indwelling needle, comprise draw point, draw point seat, flexible catheter and catheter block, and draw point, flexible catheter are separately fixed at the front end of draw point seat, catheter block; Draw point is arranged in flexible catheter; It is characterized in that: the end of draw point seat is fixed with the recovery cylinder of inner hollow, and the outer wall of recovery cylinder is provided with guide groove, the fixing slide plate that cooperates with guide groove on the draw point seat; The afterbody of draw point seat is provided with buckle; The rear end that correspondence is buckled in recovery cylinder is fore shaft fixedly, and the end of catheter block is provided with projection, and the draw-in groove that matches with projection is set on the recovery cylinder.
Wherein, the terminal projection of catheter block cooperates with the draw-in groove of recovery cylinder, can in draw-in groove, screw in/screw out, and makes the locking of catheter block and recovery cylinder or relative motion takes place.Under original state, projection screws in the draw-in groove, catheter block and recovery cylinder locking, and relative motion can not take place in draw point seat and recovery cylinder, is convenient to puncture; After remaining needle successfully punctures,, projection is broken away from, from the draw-in groove of recovery cylinder with the pumpback of draw point seat with the catheter block rotation; To recovery cylinder, the draw point seat has buckle structure together with the draw point pumpback, and recovery cylinder has locking notch structure; After making that buckle is crossed fore shaft, draw point is locked, and axially-movable can not take place; Recovery cylinder has guide groove simultaneously, and the draw point seat has the slide plate that cooperates with guide groove, makes draw point can not produce circular motion.Wherein, the necessary long enough of recovery cylinder makes it hold draw point fully, and like this, when draw point reclaimed, needle point was in the recovery cylinder fully, can not expose, thereby protection patient, medical personnel and other related personnel's safety avoids thorn to injure cross infection.
The endoporus rear end of said catheter block is provided with batching pig.At present; The side of indwelling needle catheter seat all is to be connected with Y type interface through flexible pipe; Endoporus and flexible pipe by the endoporus of catheter block and side opening, flexible pipe, Y type interface are formed fluid passage jointly; Is furnished with end cap on the Y type interface, the opening/closing of the fluid passage branch road of control Y type interface before remaining needle uses.Through the sealing function of batching pig, can guarantee draw point extract out before and after medicinal liquid/blood can from the endoporus of catheter block, not reveal, can not block the fluid passage of side opening simultaneously.
The beneficial effect that this utility model had is:
The safety remaining needle is after successfully puncturing; Slide plate through the draw point seat can drive the draw point seat and move, and draw point is reclaimed in the recovery cylinder, and buckle can be located the draw point seat with cooperating of fore shaft; Stop the reach of draw point seat; Thereby guarantee that the draw point needle point does not expose, protected patient, medical personnel and other related personnel's safety, avoid thorn to injure cross infection; The terminal projection of catheter block cooperates with the draw-in groove of recovery cylinder, can in draw-in groove, screw in/screw out, and makes the locking of catheter block and recovery cylinder or relative motion takes place.
Description of drawings
Fig. 1 is the structural representation of this utility model under the original state;
Fig. 2 is the cutaway view that removes Fig. 1 of protective sleeve;
Fig. 3 is the upward view of Fig. 2;
Fig. 4 is the structural representation of catheter block;
Fig. 5 reclaims the structural representation of back this utility model for draw point.
Among the figure: 1, sheath; 2, draw point; 3, flexible catheter; 4, catheter block; 5, slide plate; 6, draw-in groove; 7, recovery cylinder; 8, end cap; 9, Y type interface; 10, flexible pipe; 11, draw point seat; 12, projection; 13, buckle; 14, fore shaft; 15, batching pig; 16, guide groove.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of this utility model is done and to further describe:
Shown in Fig. 1～4, a kind of safety indwelling needle comprises draw point 2, draw point seat 11, flexible catheter 3 and catheter block 4; Draw point 2, flexible catheter 3 are separately fixed at the front end of draw point seat 11, catheter block 4, and the side of catheter block 4 is connected with Y type interface 9 through flexible pipe 10, by the endoporus and the flexible pipe 10 common fluid passages of forming of the endoporus of catheter block 4 and side opening, flexible pipe 10, Y type interface 9; Is furnished with end cap 8 on the Y type interface 9; The endoporus rear end of catheter block 4 is provided with batching pig 15, and draw point 2 is arranged in flexible catheter 3, and the end of draw point seat 11 is fixed with the recovery cylinder 7 of inner hollow; The outer wall of recovery cylinder 7 is provided with guide groove 16; The fixing slide plate 5 that cooperates with guide groove 16 on the draw point seat 11, the afterbody of draw point seat 11 is provided with buckle 13, and corresponding buckle 13 is fixing fore shaft 14 in the rear end of recovery cylinder 7; The end of catheter block 4 is provided with projection 12, and the draw-in groove 6 that matches with projection 12 is set on the recovery cylinder 7.
In original state, projection 12 screws in the draw-in groove 6, catheter block 4 and recovery cylinder 7 lockings, and relative motion can not take place with recovery cylinder 7 in draw point seat 11, is convenient to puncture; After remaining needle successfully punctures,, projection 12 is broken away from, from the draw-in groove 6 of recovery cylinder with 11 pumpbacks of draw point seat with catheter block 4 rotations; To recovery cylinder 7, draw point seat 11 has buckle 13 structures together with draw point 2 pumpbacks, and recovery cylinder 7 has fore shaft 14 structures, make that buckle 13 is crossed fore shaft 14 after; Draw point 2 is locked, and axially-movable can not take place, and recovery cylinder 7 has guide groove 16 simultaneously, and draw point seat 11 has the slide plate 5 that cooperates with guide groove 16; Make draw point 2 can not produce circular motion, after the recovery, as shown in Figure 5.
Wherein, batching pig 15 is positioned at the endoporus rear end of catheter block 4, plays sealing function, makes draw point 2 extract front and back out, and medicinal liquid/blood can not revealed from the endoporus of catheter block 4, can not block the fluid passage of side opening simultaneously; Slide plate 5 on the draw point seat 11 can slide in the guide groove 16 of recovery cylinder 7, can conveniently grip remaining needle simultaneously; Recovery cylinder 7 necessary long enoughs make it can hold draw point 2 fully, and like this, when draw point 2 reclaimed, needle point was in the recovery cylinder 7 fully, can not expose, thereby protection patient, medical personnel and other related personnel's safety avoid thorn to injure cross infection.In order to guarantee the safe in utilization and sanitary condition of safety indwelling needle, can be provided with sheath 1 at the safety indwelling needle front end by the structure of conventional security remaining needle.
Claims (2)
1. a safety indwelling needle comprises draw point, draw point seat, flexible catheter and catheter block, and draw point, flexible catheter are separately fixed at the front end of draw point seat, catheter block; Draw point is arranged in flexible catheter; It is characterized in that: the end of draw point seat is fixed with the recovery cylinder of inner hollow, and the outer wall of recovery cylinder is provided with guide groove, the fixing slide plate that cooperates with guide groove on the draw point seat; The afterbody of draw point seat is provided with buckle; The rear end that correspondence is buckled in recovery cylinder is fore shaft fixedly, and the end of catheter block is provided with projection, and the draw-in groove that matches with projection is set on the recovery cylinder.
2. safety indwelling needle according to claim 1 is characterized in that: the endoporus rear end of said catheter block is provided with batching pig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200387383U CN202478300U (en) | 2012-02-07 | 2012-02-07 | Safety indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200387383U CN202478300U (en) | 2012-02-07 | 2012-02-07 | Safety indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202478300U true CN202478300U (en) | 2012-10-10 |
Family
ID=46952766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200387383U Expired - Fee Related CN202478300U (en) | 2012-02-07 | 2012-02-07 | Safety indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202478300U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736171A (en) * | 2014-01-16 | 2014-04-23 | 秦朝军 | Intravenous injection needle capable of preventing needle deflection |
| CN106237440A (en) * | 2016-08-30 | 2016-12-21 | 苏州爱安奇婴儿用品有限公司 | A kind of safety indwelling needle |
| CN107754048A (en) * | 2016-08-16 | 2018-03-06 | 上海金塔医用器材有限公司 | Anti- needling structure and anti-acupuncture venous transfusion puncturing needle |
-
2012
- 2012-02-07 CN CN2012200387383U patent/CN202478300U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736171A (en) * | 2014-01-16 | 2014-04-23 | 秦朝军 | Intravenous injection needle capable of preventing needle deflection |
| CN107754048A (en) * | 2016-08-16 | 2018-03-06 | 上海金塔医用器材有限公司 | Anti- needling structure and anti-acupuncture venous transfusion puncturing needle |
| CN106237440A (en) * | 2016-08-30 | 2016-12-21 | 苏州爱安奇婴儿用品有限公司 | A kind of safety indwelling needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20150207 |
|
| EXPY | Termination of patent right or utility model |