CN202478299U - Safety indwelling needle - Google Patents
Safety indwelling needle Download PDFInfo
- Publication number
- CN202478299U CN202478299U CN2012200386431U CN201220038643U CN202478299U CN 202478299 U CN202478299 U CN 202478299U CN 2012200386431 U CN2012200386431 U CN 2012200386431U CN 201220038643 U CN201220038643 U CN 201220038643U CN 202478299 U CN202478299 U CN 202478299U
- Authority
- CN
- China
- Prior art keywords
- steel needle
- draw point
- seat
- recovery cylinder
- catheter
- 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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- Media Introduction/Drainage Providing Device (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a safety indwelling needle, which belongs to a medical apparatus, is mainly used for intravenous (artery) infusion (transfusion) and comprises a steel needle, a steel needle seat, a soft catheter and a catheter seat. The steel needle and the soft catheter are fixed at the front ends of the steel needle seat and the catheter seat respectively; the steel needle is positioned in the soft catheter; and the safety indwelling needle is characterized in that the tail end of the steel needle seat is fixedly provided with an internally-hollow recovery cylinder, the outer wall of the recovery cylinder is provided with a guide groove, the steel needle seat is fixedly provided with a sliding piece matched with the guide groove, the tail part of the steel needle seat is provided with a clamping buckle, and the rear end of the recovery cylinder is fixedly provided with a locking port corresponding to the clamping buckle. After the safety indwelling needle is successfully punctured the skin of a patient, the steel needle seat can be driven to move through the sliding piece of the steel needle seat so that the steel needle enters the recovery cylinder, the clamping buckle and the locking port coordinately position the steel needle and prevent the steel needle seat from moving forwards, thereby guaranteeing that the tip of the steel needle is not exposed, protecting the patient, medical staff and other relevant workers and avoiding puncture wound and cross infection.
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 safety indwelling needle; Comprise draw point, draw point seat, flexible catheter and catheter block; Draw point, flexible catheter are separately fixed at the front end of draw point seat, catheter block, and 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; 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, and the rear end that correspondence is buckled in recovery cylinder is fore shaft fixedly.
After remaining needle successfully punctures, can be with the pumpback of draw point seat, together with the draw point pumpback to recovery cylinder; The draw point seat has buckle structure, and recovery cylinder has locking notch structure, make that buckle is crossed fore shaft after; Draw point is locked, and axially-movable can not take place, and recovery cylinder has guide groove simultaneously; 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 front end of described recovery cylinder is provided with limited block, before retained needle puncture, stops the draw point seat from recovery cylinder, to skid off.
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.
Description of drawings
Fig. 1 is the structural representation of this utility model under the original state;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the structural representation that draw point reclaims back this utility model.
Among the figure: 1, sheath; 2, draw point; 3, flexible catheter; 4, catheter block; 5, draw point seat; 6, slide plate; 7, buckle; 8, recovery cylinder; 9, fore shaft; 10, end cap; 11, Y type interface; 12, flexible pipe; 13, limited block; 14, batching pig; 15, guide groove.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of this utility model is done and to further describe:
Like Fig. 1, shown in 2, safety indwelling needle comprises draw point 2, draw point seat 5, flexible catheter 3 and catheter block 4; Draw point 2, flexible catheter 3 are separately fixed at the front end of draw point seat 5, catheter block 4, and the side of catheter block 4 is connected with Y type interface 11 through flexible pipe 12, by the endoporus and the flexible pipe 12 common fluid passages of forming of the endoporus of catheter block 4 and side opening, flexible pipe 12, Y type interface 11; Be furnished with end cap 10 on the Y type interface 11, the endoporus rear end of catheter block 4 is provided with batching pig 14, and draw point 2 is arranged in flexible catheter 3; The end of draw point seat 5 is fixed with the recovery cylinder 8 of inner hollow; The outer wall of recovery cylinder 8 is provided with guide groove 15, the fixing slide plate 6 that cooperates with guide groove 15 on the draw point seat 5, and the afterbody of draw point seat 5 is provided with buckle 7; Corresponding buckle 7 is fixing fore shaft 9 in the rear end of recovery cylinder 8, and the front end of recovery cylinder 8 is provided with limited block 13.
In original state, limited block 13 stops 5 reaches of draw point seat, limits the motion of its needle point direction, and the distance that keeps draw point 2 to stretch out flexible catheter 3; After remaining needle successfully punctures, pumpback draw point seat 5, make draw point seat 5 together with draw point 2 pumpbacks to recovery cylinder 8, draw point seat 5 has buckle 7 structures; Recovery cylinder 8 has fore shaft 9 structures, make that buckle 7 is crossed fore shaft 9 after, draw point 2 is locked; Axially-movable can not take place, recovery cylinder 8 has guide groove 15 simultaneously, and draw point seat 5 has the slide plate 6 that cooperates with guide groove 15; Make draw point 2 can not produce circular motion, after the recovery, as shown in Figure 3.
Wherein, batching pig 14 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 6 on the draw point seat 5 can slide in the guide groove 15 of recovery cylinder 8, can conveniently grip remaining needle simultaneously; Recovery cylinder 8 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 8 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 (3)
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, and the rear end that correspondence is buckled in recovery cylinder is fore shaft fixedly.
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.
3. safety indwelling needle according to claim 1 and 2 is characterized in that: the front end of described recovery cylinder is provided with limited block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200386431U CN202478299U (en) | 2012-02-07 | 2012-02-07 | Safety indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200386431U CN202478299U (en) | 2012-02-07 | 2012-02-07 | Safety indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202478299U true CN202478299U (en) | 2012-10-10 |
Family
ID=46952765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200386431U Expired - Fee Related CN202478299U (en) | 2012-02-07 | 2012-02-07 | Safety indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202478299U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071203A (en) * | 2012-12-12 | 2013-05-01 | 山东新华安得医疗用品有限公司 | Anti-acupuncture intravenous detaining needle |
| CN103285450A (en) * | 2013-03-25 | 2013-09-11 | 南通恒泰医疗器材有限公司 | Multifunctional indwelling needle |
| CN103815952A (en) * | 2014-03-03 | 2014-05-28 | 吉林大学 | Disposable special needle for puncture of neck |
| 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 |
| CN107469191A (en) * | 2017-09-26 | 2017-12-15 | 湖北楚天药业有限责任公司 | A kind of anti-venous indwelling needle |
-
2012
- 2012-02-07 CN CN2012200386431U patent/CN202478299U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071203A (en) * | 2012-12-12 | 2013-05-01 | 山东新华安得医疗用品有限公司 | Anti-acupuncture intravenous detaining needle |
| CN103285450A (en) * | 2013-03-25 | 2013-09-11 | 南通恒泰医疗器材有限公司 | Multifunctional indwelling needle |
| CN103815952A (en) * | 2014-03-03 | 2014-05-28 | 吉林大学 | Disposable special needle for puncture of neck |
| 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 |
| CN107469191A (en) * | 2017-09-26 | 2017-12-15 | 湖北楚天药业有限责任公司 | A kind of anti-venous 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 |