CN201631244U - Tumor tissue biopsy puncture needle - Google Patents
Tumor tissue biopsy puncture needle Download PDFInfo
- Publication number
- CN201631244U CN201631244U CN2010201491671U CN201020149167U CN201631244U CN 201631244 U CN201631244 U CN 201631244U CN 2010201491671 U CN2010201491671 U CN 2010201491671U CN 201020149167 U CN201020149167 U CN 201020149167U CN 201631244 U CN201631244 U CN 201631244U
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- CN
- China
- Prior art keywords
- needle
- hollow needle
- core pin
- core
- hollow
- 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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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A tumor tissue biopsy puncture needle is provided with a hollow needle of which the front end is an oblique cut and the rear end is a needle base. A core needle is arranged in the inner hole of the hollow needle, the front end of the core needle is an oblique surface corresponding to the oblique cut of the hollow needle, and a side hole is arranged at the front part of the hollow needle. The front part of the core needle is provided with a barb corresponding to the side hole, the rear of the core needle is provided with a piston fitting with the inner diameter of the needle base of the hollow needle, a groove is axially arranged on the core needle at the connecting part of the barb and the piston, and the rear end of the core needle is provided with a handle. When the needle is used for tumor puncture, pathological tissue can be reliably acquired, and biopsy puncture success rate is largely improved. The operation is simple, safe and convenient, and the work efficiency of medical workers can be improved.
Description
Technical field:
This utility model relates to a kind of tumor tissues biopsy needle, is used for tumor puncture and obtains pathological tissues and carry out histological examination.
Background technology:
Being used to obtain the medical biopsy needle of pathological tissues clinically, is to be made of the core pin in a hollow needle and the hollow pin hole of insertion.When pathological tissues is obtained in puncture, hollow needle thrusts pathological tissues in the lump together with the core pin, then the core pin is extracted out, hollow needle connects syringe under suction function, pathological tissues is sucked in the hollow needle this mode, only depend on suction function can only extract a spot of pathological tissues, sometimes the pathological tissues that is pumped in the hollow needle does not break away from whole pathological tissues, can not obtain pathological tissues when extracting hollow needle, has influenced the success rate of biopsy puncture.Connect syringe again after needing to extract the core pin out earlier, operating process is loaded down with trivial details.
Summary of the invention:
The purpose of this utility model provides a kind of tumor tissues biopsy needle, obtains pathological tissues more reliably on the easier basis of operation.
The purpose of this utility model realizes as follows: have a front end that the hollow needle of needle stand is arranged for the angular cut rear end, the core pin is arranged in the hollow needle endoporus, core pin front end is the inclined-plane of corresponding hollow needle angular cut, there is side opening the front portion of hollow needle, core is at answering the side opening front to be equipped with barb, there is the piston that matches with hollow needle needle stand internal diameter at the rear portion of core pin, and the core needle shaft upwards has the groove that is communicated with barb and piston place, and core pin rear end is provided with handle.
During clinical manipulation, together thrust hollow needle and core pin subcutaneous to the lump center, grasp the needle stand of hollow needle then, pull back core pin handle, piston moves suction backward, and the connection effect by groove makes hollow needle side opening place form negative pressure; pathological tissues is inhaled in the hollow needle from side opening; the core pin continues to move backward, and the barb of core pin downcuts pathological tissues and stays in the hollow needle, thereby obtains pathological tissues very reliably.
This utility model can obtain pathological tissues reliably, has improved the success rate of biopsy puncture greatly.Easy and simple to handle, safe ready can improve medical personnel's work efficiency.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
With reference to accompanying drawing, there is a front end that the hollow needle 6 of needle stand 2 is arranged for the angular cut rear end, in hollow needle 6 endoporus core pin 4 is arranged, core pin 4 front ends are the inclined-plane of corresponding hollow needle 6 angular cuts, there is side opening 7 front portion of hollow needle 6, and core pin 4 corresponding side openings 7 fronts are equipped with barb 8, and there is the piston 3 that matches with needle stand 2 internal diameters at the rear portion of core pin 4, core pin 4 has the groove 5 that is communicated with barb 8 and piston 3 places on axially, and core pin 4 rear ends are provided with handle 1.
Claims (1)
1. tumor tissues biopsy needle, there is a front end that the hollow needle of needle stand is arranged for the angular cut rear end, the core pin is arranged in the hollow needle endoporus, core pin front end is the inclined-plane of corresponding hollow needle angular cut, it is characterized in that: there is side opening (7) front portion of hollow needle (6), the corresponding side opening of core pin (4) (7) front is equipped with barb (8), there is the piston (3) that matches with needle stand (2) internal diameter of hollow needle (6) at the rear portion of core pin (4), the groove (5) that has connection barb (8) and piston (3) to locate on core pin (4) is axial, core pin (4) rear end is provided with handle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201491671U CN201631244U (en) | 2010-03-30 | 2010-03-30 | Tumor tissue biopsy puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201491671U CN201631244U (en) | 2010-03-30 | 2010-03-30 | Tumor tissue biopsy puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201631244U true CN201631244U (en) | 2010-11-17 |
Family
ID=43075715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201491671U Expired - Fee Related CN201631244U (en) | 2010-03-30 | 2010-03-30 | Tumor tissue biopsy puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201631244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641139A (en) * | 2011-02-21 | 2012-08-22 | 盛春胜 | Direct extraction type bone biopsy needle |
-
2010
- 2010-03-30 CN CN2010201491671U patent/CN201631244U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641139A (en) * | 2011-02-21 | 2012-08-22 | 盛春胜 | Direct extraction type bone biopsy needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20110330 |