CN2778210Y - Blood vessel puncturing needle preventing blood stream returning - Google Patents
Blood vessel puncturing needle preventing blood stream returning Download PDFInfo
- Publication number
- CN2778210Y CN2778210Y CN 200520030274 CN200520030274U CN2778210Y CN 2778210 Y CN2778210 Y CN 2778210Y CN 200520030274 CN200520030274 CN 200520030274 CN 200520030274 U CN200520030274 U CN 200520030274U CN 2778210 Y CN2778210 Y CN 2778210Y
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- Prior art keywords
- needle
- sleeve pipe
- utility
- model
- matched
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- Expired - Fee Related
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Abstract
The utility model discloses a blood vessel puncturing needle preventing blood stream from returning, which comprises a hollow needle, wherein the front end of the hollow needle is a bevel point and the tail part of the hollow needle is fixedly connected with a plugging and pulling head. The plugging and pulling head is connected with the needle tail; the outer wall of the needle is glidingly matched with a needle sleeve pipe; the rear part of the needle sleeve pipe is provided with a needle sleeve pipe socket matched with the plugging and pulling head. The utility model is characterized in that an elastic hemostasis washer is fixedly arranged in the needle sleeve pipe socket, and the middle of the washer is provided with an elastic closed hole matched with the needle wall. As the utility model adopts the structure that a needle pipe of double components are glidingly matched with the sleeve pipe and the elastic hemostasis washer is arranged in the sleeve pipe socket where the two components are matched, the utility model has an effect that when a blood vessel is punctured, air can be prevented from entering and blood can be prevented from back flow. The utility model has the advantages of simple structure and safe and convenient operation.
Description
Technical field:
This utility model relates to medical apparatus and instruments, handling safety during particularly a kind of vascular puncture, the anti-angiographic neeclle that backflows easily.
Background technology:
Angiographic neeclle is to carry out vascular to get involved the apparatus commonly used of checking and treating.Traditional angiographic neeclle has the single part puncture needle of the affixed plug joint of Aculeata, the two parts puncture needles that have hollow pin and needle cannula cunning to join, also have a kind of three parts puncture needles that in the hollow pin of two parts puncture needles, are equipped with a real core pin, their function is the front and rear wall of puncture vessel or puncture vessel antetheca only, but the common defects that these puncture needles exist is: after the puncture vessel success, when the afterbody of puncture needle is introduced guiding wire, be prone to spray blood or hemorrhage from the afterbody of puncture needle, increased the danger of pollution and gas intravasation, operative region is unclean.
Summary of the invention:
The purpose of this utility model can prevent to occur from afterbody the anti-angiographic neeclle that backflows of spray blood and hemorrhage when being a kind of vascular puncture of design.
The technical solution of the utility model is finished as follows, it includes a hollow pin, the front end of hollow pin is a beveled point, the afterbody of hollow pin is connected with connect-disconnect plug, be connected with backshank on the connect-disconnect plug, be equipped with a needle cannula on the outer wall of pin, there is the needle cannula socket that matches with connect-disconnect plug at the needle cannula rear portion, it is characterized in that: at needle cannula socket internal fixation an elasticity hemostasis packing ring is arranged, the elastic closure hole that cooperates with the pin wall is arranged in the middle of the packing ring.This utility model is owing to adopt the pin and the sliding distribution structure of sleeve pipe of two parts, and elasticity hemostasis packing ring is set in the cover pipe insert seat that two parts match, can prevent that when vascular puncture gas from entering the effect with blood reflux so have, it is simple in structure, and handling safety is convenient again.
Description of drawings:
Fig. 1 is a structural representation of the present utility model; Fig. 2 is the structural representation of hollow pin and connect-disconnect plug and backshank; Fig. 3 is the structural representation of needle cannula and cover pipe insert seat and hemostasis packing ring.Among the figure, 1. hollow pin, 2. connect-disconnect plug, 3. backshank, 4. needle cannula, 5. cover pipe insert seat, 6. elasticity hemostasis packing ring.
The specific embodiment:
Describe embodiment in detail in conjunction with above accompanying drawing, this utility model is the improvement to existing pair of parts angiographic neeclle, it includes a hollow pin 1, the front end of pin is a beveled point, and the afterbody of pin is connected with connect-disconnect plug 2, is connected with backshank 3 on the connect-disconnect plug, on hollow pin outer wall, be equipped with a needle cannula 4, the needle cannula rear portion is provided with the needle cannula socket 5 that matches with hollow pin connect-disconnect plug, at needle cannula socket internal fixation an elasticity hemostasis packing ring 6 is arranged, and the elastic closure hole that cooperates with the pin wall is arranged in the middle of the packing ring.Whether needle cannula of the present utility model and cover pipe insert seat thereof preferably adopt the transparent plastic manufacturing, successful when convenient observation is punctured.This angiographic neeclle is because the two modular constructions that adopted hollow pin and sleeve pipe cunning to join, and elasticity hemostasis packing ring is set in the pipe insert seat at cover, can prevent that when vascular puncture gas from entering the effect with blood reflux so have, after puncturing successfully, because in the cover pipe insert seat, be provided with the hemostasis packing ring, when the afterbody of puncture needle is introduced guiding wire, the spray blood or the hemorrhage problem that when vascular puncture, exist have fundamentally been solved.
Claims (1)
1, the anti-angiographic neeclle that backflows, it includes a hollow pin, the front end of hollow pin is a beveled point, the afterbody of hollow pin is connected with connect-disconnect plug, be connected with backshank on the connect-disconnect plug, be equipped with a needle cannula on the outer wall of hollow pin, there is the needle cannula socket that matches with connect-disconnect plug at the needle cannula rear portion, it is characterized in that: at needle cannula socket internal fixation an elasticity hemostasis packing ring is arranged, the elastic closure hole that cooperates with the pin wall is arranged in the middle of the packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030274 CN2778210Y (en) | 2005-03-18 | 2005-03-18 | Blood vessel puncturing needle preventing blood stream returning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030274 CN2778210Y (en) | 2005-03-18 | 2005-03-18 | Blood vessel puncturing needle preventing blood stream returning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2778210Y true CN2778210Y (en) | 2006-05-10 |
Family
ID=36752299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520030274 Expired - Fee Related CN2778210Y (en) | 2005-03-18 | 2005-03-18 | Blood vessel puncturing needle preventing blood stream returning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2778210Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103919590A (en) * | 2014-04-29 | 2014-07-16 | 域鑫科技（惠州）有限公司 | Clip applier preventing cross infection |
| CN110141327A (en) * | 2019-06-06 | 2019-08-20 | 宿迁市第一人民医院(江苏省人民医院宿迁分院) | A kind of modified deep vein puncture device |
-
2005
- 2005-03-18 CN CN 200520030274 patent/CN2778210Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103919590A (en) * | 2014-04-29 | 2014-07-16 | 域鑫科技（惠州）有限公司 | Clip applier preventing cross infection |
| CN110141327A (en) * | 2019-06-06 | 2019-08-20 | 宿迁市第一人民医院(江苏省人民医院宿迁分院) | A kind of modified deep vein puncture device |
| CN110141327B (en) * | 2019-06-06 | 2022-01-28 | 宿迁市第一人民医院(江苏省人民医院宿迁分院) | Improved deep vein puncture device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |