CN2319050Y - Disposable outer casing type reserving needle - Google Patents
Disposable outer casing type reserving needle Download PDFInfo
- Publication number
- CN2319050Y CN2319050Y CN 97251307 CN97251307U CN2319050Y CN 2319050 Y CN2319050 Y CN 2319050Y CN 97251307 CN97251307 CN 97251307 CN 97251307 U CN97251307 U CN 97251307U CN 2319050 Y CN2319050 Y CN 2319050Y
- Authority
- CN
- China
- Prior art keywords
- cushion chamber
- needle
- injection
- shank
- tail end
- 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.)
- Ceased
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Abstract
The utility model relates to an injection needle which solves the problem that the tissue edema easily occurs when the existing steel infusion needle is arranged in the blood vessel. The side wall of a section of closed needle bar is provided with a hole, the tail end of the needle bar is provided with a handle, and a reserving plastic tube is sheathed on the needle bar. The tail end portion of the tube is connected with a cushion chamber, and the end of the cushion chamber is plugged with a rubber stopper. The side wall of the cushion chamber is connected with an infusion tube and a fixed handle, and the side hole of the needle bar is arranged in the cushion chamber. The utility model has the advantages of convenient operation and high safety, and is suitable for injection and infusion.
Description
This utility model relates to a kind of transfusion injection needle head, particularly a kind of disposable external-cover-type retaining needle.
Be very common thing to suffering from patient's transfusion at present, but the used injection needle of infusing is a steel, and it can not be out of shape, and is difficult to fix, even fixedly behind the injection needle, as long as shank slightly moves, its needle point just may puncture or withdraw from blood vessel, and treatment liquid can no longer flow in the blood vessel, but be injected into interstice, cause the tissue local edema, and need puncture again, bring misery to the patient.
The purpose of this utility model is to provide a kind of safe and reliable disposable external-cover-type retaining needle.
This utility model is finished with following mode: disposable external-cover-type retaining needle is that the end of keeping somewhere plastic catheter 2 is connected with cushion chamber 3, be connected with tube for transfusion 4 and fixed handle 8 on the sidewall of cushion chamber 3, the tail end of cushion chamber 3 is plugged with rubber stopper 5, on the tail end of the injection shank 1 of tail end sealing handle 7 is housed, on the sidewall of injection shank 1, have hole 6, injection shank 1 interts in keeping somewhere plastic catheter 2 after passing rubber stopper 5 and cushion chamber 3, the needle point of injection shank 1 front end stretches out keeps somewhere plastic catheter 2, and the hole 6 on injection shank 1 sidewall is in the cushion chamber 3.
This utility model disposable external-cover-type retaining needle adopts soft indwelling plastic catheter to be enclosed within on the shank, after injecting blood vessel, the draw point bar is extracted out, keep somewhere plastic catheter and be retained in continuation transfusion in the blood vessel, because of inlying catheter is a plastic tube, can be out of shape, can enter long enough along blood vessel, can be because of slight moving do not puncture or withdraw from blood vessel and cause the tissue local enlargement, the inlying catheter front end is in blood vessel, the rear end is connected with cushion chamber, cushion chamber connects tube for transfusion, and cushion chamber and fixed handle can be close to limbs and fix, and it has easy to use, safe and reliable, be applicable to the injection use.
Fig. 1 is this utility model structural representation
Below in conjunction with accompanying drawing this utility model is described in further detail:
As shown in Figure 1, this utility model disposable external-cover-type is kept somewhere by steel injection shank 1 and is kept somewhere plastic catheter 2 and form.The front end of steel injection shank 1 has needle point, be hollow in it, rearward end at injection shank 1 is one section sealing, handle 7 is housed on this segment trailer, keeping somewhere plastic catheter 2 is plastic hollow pipes, its end connects cushion chamber 3, has the end to be plugged with rubber stopper 5 at cushion chamber 3, is connected with transfusion catheter 4 and fixed handle 8 is housed on the sidewall of cushion chamber 3.Injection shank 1 penetrates to keeping somewhere in the plastic catheter 2 after passing rubber stopper 5 and cushion chamber 3, keeping somewhere plastic catheter 2 tightly is enclosed within on the injection shank 1, the needle point of shank 1 front end stretches out keeps somewhere plastic catheter 2, has hole 6 on the sidewall of injection shank 1, is communicated with the infusion channel in the injection shank 1.Identical during use with conventional puncture, this remaining needle is thrust blood vessel, after seeing that blood flows into cushion chamber 3 in side opening 6, confirm syringe needle intravasation, pull handle 7, needle point is return 3-5mm in the indwelling plastic catheter 2, hand-held again fixed handle 8 will be kept somewhere plastic catheter 2 and continue the about 3-10mm of intravasation along blood vessel, holding handle 7 will inject shank 1 and all detach and keep somewhere plastic catheter 2 and rubber stopper 5, this moment, rubber stopper 5 was closed naturally because of elastic reaction, can be in the cushion chamber 3 because of not withdrawing from injection shank 1 discharge, reuse immobilization with adhesive tape cushion chamber 3 and fixed handle 8.
Claims (1)
1. disposable external-cover-type retaining needle, it is characterized in that the end of keeping somewhere plastic catheter [2] is connected with cushion chamber [3], be connected with tube for transfusion [4] and fixed handle [8] on the sidewall of cushion chamber [3], the tail end of cushion chamber [3] is plugged with rubber stopper [5], on the tail end of the injection shank [1] of tail end sealing handle [7] is housed, on the wall of injection shank [1], have hole [6], injection shank [1] interts in keeping somewhere plastic catheter [2] after passing rubber stopper [5] and cushion chamber [3], the needle point of injection shank [1] front end stretches out keeps somewhere plastic catheter [2], and the hole [6] on injection shank [1] sidewall is in the cushion chamber [3].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97251307 CN2319050Y (en) | 1997-12-17 | 1997-12-17 | Disposable outer casing type reserving needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97251307 CN2319050Y (en) | 1997-12-17 | 1997-12-17 | Disposable outer casing type reserving needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2319050Y true CN2319050Y (en) | 1999-05-19 |
Family
ID=33957484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97251307 Ceased CN2319050Y (en) | 1997-12-17 | 1997-12-17 | Disposable outer casing type reserving needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2319050Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716541A (en) * | 2012-03-03 | 2012-10-10 | 许春燕 | Disposable single hand insertion tube type vein detaining needle |
| CN106552302A (en) * | 2016-11-24 | 2017-04-05 | 李德生 | It is external to stay round end |
-
1997
- 1997-12-17 CN CN 97251307 patent/CN2319050Y/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716541A (en) * | 2012-03-03 | 2012-10-10 | 许春燕 | Disposable single hand insertion tube type vein detaining needle |
| CN102716541B (en) * | 2012-03-03 | 2016-03-09 | 许春燕 | Disposable one hand send tubular type vein indwelling needle |
| CN106552302A (en) * | 2016-11-24 | 2017-04-05 | 李德生 | It is external to stay round end |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20010118 Decision number of declaring invalidation: 2846 |