CN201642122U - Biopsy forceps with softened front end - Google Patents
Biopsy forceps with softened front end Download PDFInfo
- Publication number
- CN201642122U CN201642122U CN2010201618530U CN201020161853U CN201642122U CN 201642122 U CN201642122 U CN 201642122U CN 2010201618530 U CN2010201618530 U CN 2010201618530U CN 201020161853 U CN201020161853 U CN 201020161853U CN 201642122 U CN201642122 U CN 201642122U
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- CN
- China
- Prior art keywords
- steel wire
- spring pipe
- wall thickness
- sheath spring
- wire rope
- 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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Abstract
The utility model discloses biopsy forceps with a softened front end, which comprise jaws connected with a steel wire rope via drawing wires. The tail end of the steel wire rope is connected with an operating handle, and the drawing wires and the steel wire rope are coated with a sheathing bourdon tube. The biopsy forceps are characterized in that the front wall of the sheathing bourdon tube is thinner than the rear wall thereof. The thickness of the front wall of the sheathing bourdon tube is reduced, then the front of the sheathing bourdon tube is softened and not easy to be broken by resistance after the jaws are inserted into an endoscope, can protect the drawing wires inside the endoscope well and prevent the drawing wires bending easily, thereby guaranteeing reliability of opening and closing of the jaws while avoiding affecting sampling. The biopsy forceps have the advantages of simple structure, manufacturing convenience and reliable use, and further, sampling reliability of the biopsy forceps for the endoscope is guaranteed.
Description
Technical field:
This utility model relates to medical instruments field, is specifically related to the softening formula living tissue sample pickup tongs of a kind of front end.
Background technology:
Fig. 1 is the structural representation of scope with the living tissue sample pickup tongs, and jaw is connected with steel wire rope by traction steel wire, and the end of steel wire rope is connected with operating grip, and the outside of traction steel wire and steel wire rope is with the sheath spring pipe.During operation, jaw is subjected to resistance rear spring pipe anterior easy to break bad after inserting scope, and it is dumb that the bending of internal traction steel wire causes jaw to open and close, feasible sampling difficulty.
Summary of the invention:
The purpose of this utility model is to provide a kind of front end to soften formula living tissue sample pickup tongs.
To achieve these goals, the technical solution of the utility model is: a kind of front end softens formula living tissue sample pickup tongs, comprise jaw, jaw is connected with steel wire rope by traction steel wire, the end of steel wire rope is connected with operating grip, the outside of traction steel wire and steel wire rope is with the sheath spring pipe, it is characterized in that the anterior wall thickness of sheath spring pipe is less than sheath spring pipe rear portion wall thickness.The wall thickness of sheath spring pipe front portion 150～250mm length is less than sheath spring pipe rear portion wall thickness, and wall thickness thinnest part and thickness differ 0.1～0.2mm.
Because the anterior wall thickness of sheath spring pipe reduces, make the sheath spring pipe anterior softening, after inserting scope, jaw is subjected to resistance rear spring pipe front portion not easy to break bad; can protect the internal traction steel wire well; make it to be difficult for bending, guaranteed the reliability that jaw opens and closes, can not have influence on sampling.Advantage of the present utility model is simple in structure, and is easily manufactured, easy to use and reliable, guaranteed the reliability of scope with the sampling of living tissue sample pickup tongs.
Description of drawings:
Fig. 1 is the structural representation of scope with the living tissue sample pickup tongs
Fig. 2 is the structural representation of sheath spring pipe of the present utility model
The specific embodiment:
The invention will be further described below in conjunction with drawings and Examples.
A kind of front end softens formula living tissue sample pickup tongs, comprise jaw 1, jaw 1 is connected with steel wire rope 4 by traction steel wire 3, the end of steel wire rope 4 is connected with operating grip 6, the outside of traction steel wire 3 and steel wire rope 4 is with sheath spring pipe 2, it is characterized in that sheath spring pipe 2 anterior wall thickness are less than sheath spring pipe 2 rear portion wall thickness.The wall thickness of sheath spring pipe 2 anterior L=150～250mm length is less than other sheath spring pipe 2 rear portion wall thickness, and wall thickness thinnest part and thickness differ 0.1～0.2mm.
When explanation for the sake of brevity, to be called front end near jaw 1 end, the other end is called the rear end, the wall thickness of sheath spring pipe rear end is the standard wall thickness, and is identical with sheath spring thickness of pipe wall of the prior art, during fabrication, can skiving sheath spring pipe the tube wall of anterior length L, make and the little 0.1～0.2mm of wall ratio rear end wall thickness of sheath spring pipe front end also can adopt two sections sheath spring pipes to connect the little 0.1～0.2mm of wall thickness that the wall ratio back that the front is a section is a section.
Claims (4)
1. a front end softens formula living tissue sample pickup tongs, comprise jaw, jaw is connected with steel wire rope by traction steel wire, the end of steel wire rope is connected with operating grip, the outside of traction steel wire and steel wire rope is with the sheath spring pipe, it is characterized in that the anterior wall thickness of sheath spring pipe is less than sheath spring pipe rear portion wall thickness.
2. living tissue sample pickup tongs as claimed in claim 1, the wall thickness that it is characterized in that sheath spring pipe front portion 150～250mm length is less than other sheath spring pipe rear portion wall thickness, and wall thickness thinnest part and thickness differ 0.1～0.2mm.
3. living tissue sample pickup tongs as claimed in claim 2 is characterized in that the tube wall of skiving sheath spring pipe front portion 150～250mm length, the little 0.1～0.2mm of wall ratio rear end wall thickness of sheath spring pipe front end.
4. living tissue sample pickup tongs as claimed in claim 2 is characterized in that the sheath spring pipe is formed by connecting by two sections sheath spring pipes, the little 0.1～0.2mm of wall thickness that the wall ratio back that the front is a section is a section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201618530U CN201642122U (en) | 2010-04-16 | 2010-04-16 | Biopsy forceps with softened front end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201618530U CN201642122U (en) | 2010-04-16 | 2010-04-16 | Biopsy forceps with softened front end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201642122U true CN201642122U (en) | 2010-11-24 |
Family
ID=43107303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201618530U Expired - Fee Related CN201642122U (en) | 2010-04-16 | 2010-04-16 | Biopsy forceps with softened front end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201642122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102379727A (en) * | 2011-09-02 | 2012-03-21 | 王宝根 | Multifunctional biopsy forceps |
| CN105266855A (en) * | 2014-11-11 | 2016-01-27 | 上海菲捷实业有限公司 | Double-end endoscope flexible pipe type sampling tongs |
-
2010
- 2010-04-16 CN CN2010201618530U patent/CN201642122U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102379727A (en) * | 2011-09-02 | 2012-03-21 | 王宝根 | Multifunctional biopsy forceps |
| CN105266855A (en) * | 2014-11-11 | 2016-01-27 | 上海菲捷实业有限公司 | Double-end endoscope flexible pipe type sampling tongs |
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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: 20101124 Termination date: 20140416 |