CN2402275Y - Disposable adjustable negative pressure automatic aspiration body cavity puncture needle - Google Patents
Disposable adjustable negative pressure automatic aspiration body cavity puncture needle Download PDFInfo
- Publication number
- CN2402275Y CN2402275Y CN 99221561 CN99221561U CN2402275Y CN 2402275 Y CN2402275 Y CN 2402275Y CN 99221561 CN99221561 CN 99221561 CN 99221561 U CN99221561 U CN 99221561U CN 2402275 Y CN2402275 Y CN 2402275Y
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- CN
- China
- Prior art keywords
- needle
- utility
- model
- negative pressure
- body cavity
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- Expired - Fee Related
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Abstract
The utility model relates to a disposable adjustable type negative pressure automatic suction puncture needle for body cavities, which is provided with a needle bolt, a needle tube and a needle head. The utility model is characterized in that a bulge of the needle bolt is provided with a groove; the tail of the needle tube wall is provided with a circular arc-shaped blocking sheet, and the upper part of the blocking sheet is connected with the tail of the needle tube wall; the front end of the needle tube is provided with a plunger type switch, and the front end of the switch is provided with the needle head. The utility model has the advantages of reasonable structure, convenient operation and simple operation. The utility model can form negative pressure before puncturing, the size of the utility model can be adjusted, the needle head is fixed easily during puncturing, and thereby, the utility model enhances the accuracy of the puncture, and can be widely used for puncturing at deep parts. The utility model is particularly suitable for puncturing at deep parts, such as back fornix, etc., and parts where are punctured after opened by appliances which are held by another hand.
Description
This utility model relates to medical apparatus and instruments, specifically disposable adjustable negative pressure auto-pumping body cavity puncture needle.
At present in various body cavity punctures, all adopt the ordinary syringe puncture, need control needle tubing on the other hand during operation, the pull pintle forms negative pressure-pumping on the other hand, the operation syringe needle is difficult for fixing like this, cause puncture position to change, in bathystixis, during as culdocentesis, adopt the ordinary syringe puncture to need operation as stated above, it is very difficult to puncture, and success rate is low, and effect is undesirable.
In order to overcome the deficiency of above-mentioned technology, and the disposable adjustable negative pressure auto-pumping body cavity puncture needle a kind of rational in infrastructure, simple to operate, easy to use that provides.
For achieving the above object, disposable adjustable negative pressure auto-pumping body cavity puncture needle, be provided with pintle, needle tubing, syringe needle, it is characterized in that the pintle projection is provided with groove, needle tubing wall afterbody is provided with the circular arc barrier sheet, its top is connected with needle tubing wall afterbody, and the needle tubing front end is provided with plunger switch, and its front end is installed syringe needle.
This utility model is rational in infrastructure, and is easy to operate, safe in utilization, the scalable vacuum magnitude, auto-pumping liquid breaks away from syringe needle with needle tubing in puncture, get rid of the liquid in the needle tubing after, the endoceliac liquid of sucking-off once more.
Below in conjunction with accompanying drawing this utility model is done further detailed description.
Fig. 1 is a structural representation of the present utility model, also is the sketch map of embodiment.
As seen from Figure 1, disposable adjustable negative pressure auto-pumping body cavity puncture needle, be provided with pintle 1, needle tubing 3, syringe needle 5, on its pintle 1, be provided with a plurality of grooves, needle tubing 3 wall afterbodys are provided with circular arc barrier sheet 2, its top and needle tubing 3 afterbodys link, needle tubing 3 front ends are installed and are provided with plunger switch 4, it adopts the medical high polymer plastics to make, disposable adjustable negative pressure auto-pumping body cavity puncture needle, before using puncture, plunger switch 4 is in closed condition, with hands pull pintle 1 backward, pintle 1 is provided with 3-4 groove, is used to regulate vacuum magnitude in the needle tubing 3, rotates behind pintle 1 pull, top and the joining circular arc barrier sheet of needle tubing 3 wall afterbodys are embedded in the groove of pintle 1, make the invariant position of pintle 1 relative needle tubing 3, form negative pressure in the needle tubing 3, puncture again, after entering body cavity, push and open plunger switch 4, endoceliac liquid sucks in the needle tubing 3 under the effect of negative pressure automatically, if also have big quantity of fluid to need to extract out in the body cavity, the front end of needle tubing 3 plunger switch 4 can be broken away from syringe needle 5, rotate pintle 1, its circular arc barrier sheet 2 and groove are broken away from, remove the fixing of 2 pairs of pintles 1 of circular arc barrier sheet, promote pintle 1, get rid of the liquid in the needle tubing 3, again the front end of plunger switch 4 is connected with syringe needle 5, the pull pintle, be used for the endoceliac liquid of sucking-off once more, so repeatedly, can use when in body cavity, having big quantity of fluid to extract out.This needle position is fixed, and result of use is good, can operate on the other hand, especially is useful in as bathystixises such as posterior fornixs, need another hand-held apparatus to strut after, the position that could puncture.This utility model is rational in infrastructure, and is easy to use, simple to operate, can form negative pressure before puncture, the adjustable size joint, and syringe needle is easy to fix during puncture, has improved puncture accuracy, and result of use is good, is widely used in the puncture of position, deep.
Claims (1)
1, disposable adjustable negative pressure auto-pumping body cavity puncture needle is provided with pintle, needle tubing, syringe needle, it is characterized in that the pintle projection is provided with groove, needle tubing wall afterbody is provided with the circular arc barrier sheet, its top is connected with needle tubing wall afterbody, and the needle tubing front end is provided with plunger switch, and its front end is installed syringe needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99221561 CN2402275Y (en) | 1999-07-07 | 1999-07-07 | Disposable adjustable negative pressure automatic aspiration body cavity puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99221561 CN2402275Y (en) | 1999-07-07 | 1999-07-07 | Disposable adjustable negative pressure automatic aspiration body cavity puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2402275Y true CN2402275Y (en) | 2000-10-25 |
Family
ID=34012102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99221561 Expired - Fee Related CN2402275Y (en) | 1999-07-07 | 1999-07-07 | Disposable adjustable negative pressure automatic aspiration body cavity puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2402275Y (en) |
-
1999
- 1999-07-07 CN CN 99221561 patent/CN2402275Y/en not_active Expired - Fee Related
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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 |