CN203060461U - High pressure resistant and safe remaining needle - Google Patents
High pressure resistant and safe remaining needle Download PDFInfo
- Publication number
- CN203060461U CN203060461U CN 201320040724 CN201320040724U CN203060461U CN 203060461 U CN203060461 U CN 203060461U CN 201320040724 CN201320040724 CN 201320040724 CN 201320040724 U CN201320040724 U CN 201320040724U CN 203060461 U CN203060461 U CN 203060461U
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- needle
- high pressure
- pressure resistant
- plastic
- adapter
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Abstract
The utility model discloses a high pressure resistant and safe remaining needle. The remaining needle comprises a remaining needle catheter assembly, a needle tube assembly and an infusion joint assembly, wherein a plastic joint matched with the inner wall of a catheter seat is arranged between the rear part of the catheter seat and a needle seat, and an isolation plug is arranged in the catheter seat. The remaining needle is characterized in that a high pressure resistant gasket is arranged between the isolation plug and the plastic joint. According to the remaining needle, the high pressure resistant gasket is arranged between the isolation plug and the plastic joint, so that the isolation plug is prevented from rushing out of the catheter seat under high pressure, burst is avoided, and safety is guaranteed; and a safe device for preventing pricking wounds is arranged in the plastic joint, when the needle is withdrawn, the plastic joint is pulled out of the catheter seat by the puncture needle, right now the needle tip of the puncture needle is withdrawn into the plastic joint, and the safe device for preventing pricking wounds can block a through-hole in the upper end of the plastic joint so as to protect a used steel needle, and accidental injuries to a human body caused by the steel tube after transfusion can be avoided.
Description
Technical field
This utility model relates to a kind of transfusion medical apparatus and instruments, specifically belongs to a kind of high pressure resistant safe type retention needle.
Background technology
Remaining needle be in the medical treatment when needs repeatedly carry out infusion treatment within a certain period of time, in order to alleviate the painful medical device that reduces medical personnel's workload again simultaneously and often use of sufferer.Existing common remaining needle mainly is made up of conduit, catheter block, needle tubing and needle stand, and the side of catheter block is connected with tube for transfusion.The medical worker had by the risk of pricking wound when venous detaining needle in the market can not bear high pressure and use, the patient of palpus CT radiography when infusing for venous indwelling especially, common remaining needle when radiography, the batching pig of the inside may under high pressure be gone out catheter block, cause the risk of explosion, thereby influence patient treatment and produce conflict between doctors and patients.
On the other hand; the blood that has the patient after needle tubing is extracted; be exposed to the outside; because the needle tubing top is without any protector in the existing needle tubing assembly of common remaining needle, its sharp needle point is easy to prick medical personnel, patient or other people under careless situation, the person is damaged; even can cause the infection of some diseases; not only stay potential safety hazard, arbitrarily put simultaneously, also pollute the environment.
Summary of the invention
This utility model purpose is: a kind of high pressure resistant safe type retention needle is provided; this pin has solved the problem that causes the product explosion when doing the CT radiography because of high pressure; simultaneously do not needing to increase under the prerequisite of medical personnel's transfusion operation step; used draw point is protected; draw point is to the unexpected injury of the person after can avoiding infusing; the probability that elimination catches; the protection environment; security performance is significantly improved; the back draw point of can also avoiding infusing causes unexpected injury to personnel, avoids the possibility of cross infection.
The technical solution of the utility model is: a kind of high pressure resistant safe type retention needle, comprise indwelling needle catheter assembly, needle tubing assembly, annotate the infusion connector assembly, be provided with the adapter of plastic that cooperates with the catheter block inwall between the rear portion of catheter block and the needle stand, be provided with batching pig, metal wedge in the described catheter block, it is characterized in that: be provided with high pressure resistant pad between described batching pig and the adapter of plastic.Be used for preventing that batching pig under high pressure going out catheter block, cause explosion, guarantee safety.
Preferably, an otch has been cut at described batching pig top vertically, and after puncture needle was extracted from batching pig, otch auto-closing immediately sealed pin hole.Described otch is " one " font, and sealing is reliable, has avoided the puncture part contaminated.
Preferably, described adapter of plastic inside is provided with anti-pricking wound safety device, and during the withdraw of the needle, adapter of plastic is punctured pin and pulls out catheter block together, and this moment, the puncture needle needle point was retracted in the adapter of plastic, and anti-pricking wound safety device can be blocked the through hole of the upper end of adapter of plastic.
Preferably, described remaining needle comprises high pressure resistant long duct.
Preferably, described notes infusion connector assembly comprises flow-stopping clip, high pressure resistant long duct, calparine cap, the defeated joint of notes and end cap, and described high pressure resistant long duct is connected on the catheter block, is furnished with flow-stopping clip on the high pressure resistant long duct, annotate defeated joint and be provided with calparine cap, opposite side is provided with end cap.
Preferably; described anti-pricking wound safety device is a screening glass; the buckle that expands in the upper end of described screening glass is provided with; the buckle of described screening glass fits snugly in first bayonet socket of the outer wall of puncture needle and catheter block; adapter of plastic is subjected to outwards pulling out the pulling force of puncture needle during the withdraw of the needle; being buckled in of screening glass is subjected to catheter block when outwards pulling out along with adapter of plastic the downward pressure of first bayonet socket and deformation, and then break away from first bayonet socket and block the through hole of the upper end of adapter of plastic.
Preferably, there is a bottom outlet less than puncture needle deformation point diameter the lower end of described screening glass, and during the withdraw of the needle, puncture needle withdraws from until deformation point and blocks the bottom orifice of screening glass and pull it catheter block.
Preferably; described adapter of plastic comprises pin hole and lower pinhole; the needle point guard screening glass is embedded in the adapter of plastic, and spacing cooperation of first bayonet socket of the buckle of described screening glass upper end and catheter block, the diameter of pin hole and lower pinhole all is a bit larger tham the diameter of puncture needle on the adapter of plastic.
Preferably, described notes infusion connector also can be needleless joint, positive pressure connector or other joints.
The utility model has the advantages that:
1. this utility model is provided with high pressure resistant pad between batching pig and adapter of plastic, is used for preventing that batching pig under high pressure going out catheter block, causes explosion, guarantees safety.
2. this utility model has been cut an otch vertically at the batching pig top, and after puncture needle was extracted from batching pig, otch auto-closing immediately sealed pin hole, and sealing is reliable, has avoided the puncture part contaminated.
3. this utility model is provided with anti-pricking wound safety device in adapter of plastic inside, during the withdraw of the needle, adapter of plastic is punctured pin and pulls out catheter block together, and this moment, the puncture needle needle point was retracted in the adapter of plastic, and anti-pricking wound safety device can be blocked the through hole of the upper end of adapter of plastic.Avoided the draw point of transfusion back band blood that medical personnel or other people are caused unexpected injury, also reduced the probability of staying the most advanced and sophisticated viral communication of draw point, can not pollute environment simultaneously.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further described:
Fig. 1 is a kind of general assembly sketch map of high pressure resistant safe type retention needle;
Fig. 2 is the structural representation of state before screening glass uses among the embodiment;
Fig. 3 is the structural representation that screening glass uses the back state among the embodiment;
Fig. 4 is screening glass structural representation among the embodiment;
Fig. 5 is the local enlarged diagram of adapter of plastic and batching pig joint.
Wherein: 1, conduit; 2, catheter block; 3, metal wedge; 4, batching pig; 5, notch draw point; 6, needle stand; 7, adapter of plastic; 8, screening glass; 9, distortion place; 10, buckle; 11, first bayonet socket; 12, go up pin hole; 13, lower pinhole; 14, high pressure resistant long duct; 15, flow-stopping clip; 16, infusion joint; 17, calparine cap; 18, end cap; 19, bottom outlet; 20, spacing buckle; 21, second bayonet socket; 22, anti-pricking wound safety device; 23, high pressure resistant pad.
The specific embodiment
Embodiment:
As shown in Figure 1, a kind of high pressure resistant safe type retention needle, comprise notch draw point 5 and conduit 1, the rear portion of conduit 1 is connected with catheter block 2, and notch draw point 5 is plugged in conduit 1 and catheter block 2 inside, afterbody is provided with the needle stand 6 that is exposed to catheter block 2, the front portion of notch draw point 5 is provided with distortion place 9, and the rear portion of described catheter block is provided with the adapter of plastic 7 that cooperates with catheter block 2 inwalls, is provided with batching pig 4 in the described catheter block 2, as shown in Figure 5, be provided with high pressure resistant pad 23 between described batching pig 4 and the adapter of plastic 7.
Arrive shown in Figure 4 as Fig. 2; adapter of plastic 7 inside are provided with screening glass 8 and are used as anti-pricking wound safety device 22; notch draw point 5 passes adapter of plastic 7 and screening glass 8 stretches in the conduit 1; described screening glass 8 is stamped to form by stainless steel substrates; there is buckle 10 screening glass 8 upper ends; described adapter of plastic 7 is convex round platform pipe; its center has last pin hole 12, lower pinhole 13 from front to back successively; screening glass 8 is embedded in the adapter of plastic 7,21 spacing cooperations of second bayonet socket of the spacing buckle 20 in described screening glass 8 bottoms and catheter block 2.
As shown in Figure 3, there is a bottom outlet 19 less than notch draw point 5 deformation points 9 diameters the lower end of described screening glass 8.
The operation principle of present embodiment is as follows:
Before the use, notch draw point 5 passes adapter of plastic 7, and the buckle of screening glass 8 10 can be strutted by notch draw point 5, and this moment, the buckle 10 of screening glass 8 fitted snugly in first bayonet socket 11 of the outer wall of notch draw point 5 and catheter block.
During use, with hands clamping needle stand 6, the notch draw point 5 that is with conduit 1 is thrust vein, then notch draw point 5 is withdrawed from conduit 1 backward, and from the metal wedge 3 of catheter block 2 and batching pig 4, extract out.During the withdraw of the needle; notch draw point 5 withdrawed from until bottom outlet 19 places that deformation point 9 blocks screening glass 8 block; this moment, adapter of plastic 7 was subjected to outwards pulling out the pulling force of notch draw point 5; the buckle 10 of screening glass 8 is subjected to first bayonet socket, the 11 downward pressure of catheter block 2 and deformation when outwards pulling out along with adapter of plastic 7, and then breaks away from first bayonet socket 11 and block the through hole of the upper end of adapter of plastic 7.Along with needle stand 6 and notch draw point 5 are extracted disengaging catheter block 2 together, the needle point of notch draw point 5 is limited in no longer having danger in this adapter of plastic 7 at this moment.
Claims (9)
1. high pressure resistant safe type retention needle, comprise indwelling needle catheter assembly, needle tubing assembly, annotate the infusion connector assembly, be provided with the adapter of plastic (7) that cooperates with catheter block (2) inwall between the rear portion of catheter block (2) and the needle stand (6), be provided with batching pig (4), metal wedge (3) in the described catheter block (2), it is characterized in that: be provided with high pressure resistant pad (23) between described batching pig (4) and the adapter of plastic (7).
2. a kind of high pressure resistant safe type retention needle according to claim 1, it is characterized in that: an otch has been cut at described batching pig (4) top vertically, and after puncture needle was extracted from batching pig (4), otch auto-closing immediately sealed pin hole.
3. a kind of high pressure resistant safe type retention needle according to claim 1, it is characterized in that: described adapter of plastic (7) inside is provided with anti-pricking wound safety device (22), during the withdraw of the needle, adapter of plastic (7) is punctured pin and pulls out catheter block (2) together, this moment, the puncture needle needle point was retracted in the adapter of plastic (7), and anti-pricking wound safety device (22) can be blocked the through hole of the upper end of adapter of plastic (7).
4. a kind of high pressure resistant safe type retention needle according to claim 1 is characterized in that: comprise high pressure resistant long duct (14).
5. a kind of high pressure resistant safe type retention needle according to claim 4, it is characterized in that: described notes infusion connector assembly comprises flow-stopping clip (15), high pressure resistant long duct (14), calparine cap (17), annotates defeated joint (16) and end cap (18), described high pressure resistant long duct (14) is connected on the catheter block (2), is furnished with flow-stopping clip (15) on the high pressure resistant long duct (14), annotate defeated joint (16) and be provided with calparine cap (17), opposite side is provided with end cap (18).
6. a kind of high pressure resistant safe type retention needle according to claim 3; it is characterized in that: described anti-pricking wound safety device (22) is a screening glass (8); the buckle (10) that expands in the upper end of described screening glass (8) is provided with; the buckle (10) of described screening glass (8) fits snugly in first bayonet socket (11) of the outer wall of puncture needle and catheter block; the adapter of plastic during withdraw of the needle (7) is subjected to outwards pulling out the pulling force of puncture needle; the buckle (10) of screening glass (8) is subjected to the downward pressure of first bayonet socket (11) of catheter block (2) and deformation when outwards pulling out along with adapter of plastic (7), and then breaks away from first bayonet socket (11) and block the through hole of the upper end of adapter of plastic (7).
7. a kind of high pressure resistant safe type retention needle according to claim 6; it is characterized in that: there is a bottom outlet (19) less than puncture needle deformation point (9) diameter the lower end of described screening glass (8); during the withdraw of the needle, puncture needle withdraws from the bottom outlet (19) that blocks screening glass (8) until deformation point (9) and locates and pull it catheter block (2).
8. a kind of high pressure resistant safe type retention needle according to claim 7; it is characterized in that: described adapter of plastic (7) comprises pin hole (12) and lower pinhole (13); needle point guard screening glass (8) is embedded in the adapter of plastic (7); the buckle (10) of described screening glass (8) upper end and spacing cooperation of first bayonet socket (11) of catheter block (2), the diameter of the last pin hole (12) of adapter of plastic (7) and lower pinhole (13) all is a bit larger tham the diameter of puncture needle.
9. a kind of high pressure resistant safe type retention needle according to claim 1, it is characterized in that: described notes infusion connector also can be needleless joint, positive pressure connector or other joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040724 CN203060461U (en) | 2013-01-25 | 2013-01-25 | High pressure resistant and safe remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040724 CN203060461U (en) | 2013-01-25 | 2013-01-25 | High pressure resistant and safe remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203060461U true CN203060461U (en) | 2013-07-17 |
Family
ID=48759292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320040724 Expired - Lifetime CN203060461U (en) | 2013-01-25 | 2013-01-25 | High pressure resistant and safe remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203060461U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071204A (en) * | 2013-01-29 | 2013-05-01 | 苏州林华医疗器械有限公司 | Safety type detaining needle with disposable use |
| CN104162202A (en) * | 2014-06-10 | 2014-11-26 | 丁培琪 | Reverse-flowing-prevention venous indwelling needle |
| CN113855921A (en) * | 2021-10-28 | 2021-12-31 | 阳普医疗（湖南）有限公司 | Remaining needle |
-
2013
- 2013-01-25 CN CN 201320040724 patent/CN203060461U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071204A (en) * | 2013-01-29 | 2013-05-01 | 苏州林华医疗器械有限公司 | Safety type detaining needle with disposable use |
| CN103071204B (en) * | 2013-01-29 | 2014-02-26 | 苏州林华医疗器械有限公司 | Safety type detaining needle with disposable use |
| CN104162202A (en) * | 2014-06-10 | 2014-11-26 | 丁培琪 | Reverse-flowing-prevention venous indwelling needle |
| CN113855921A (en) * | 2021-10-28 | 2021-12-31 | 阳普医疗（湖南）有限公司 | Remaining needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215101 No. 3, new road, Suzhou Industrial Park, Jiangsu, China Patentee after: SUZHOU LINHWA MEDICAL DEVICES CO.,LTD. Address before: 215101 No. 3, new road, Suzhou Industrial Park, Jiangsu, China Patentee before: SUZHOU LINHUA MEDICAL DEVICE CO.,LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
|
| CX01 | Expiry of patent term |