CN2824840Y

CN2824840Y - Needle mounted steel wire hook type biopsy forceps for endoscope

Info

Publication number: CN2824840Y
Application number: CN 200520074924
Authority: CN
Inventors: 丁勇; 沈礼宝; 冷德嵘
Original assignee: Nanjing Micro-Tech Co Ltd
Current assignee: Nanjing Micro-Tech Co Ltd; Micro Tech Nanjing Co Ltd
Priority date: 2005-08-26
Filing date: 2005-08-26
Publication date: 2006-10-11
Anticipated expiration: 2015-08-26

Abstract

The utility model discloses a biopsy forceps for an endoscope, which has the advantages of simple structure and reliably and is provided with pins and four connecting rods. The utility model comprises forceps head assemblies which are mainly composed of a left forceps head (1), a right forceps head (2), a forceps head seat (3), a left steel wire hook (4) and a right steel wire hook (5). The utility model is characterized in that needles (10) are fixedly arranged between the left forceps head (1) and the right forceps head (2); rivets (16) and (17) on the left forceps head (1) and the right forceps head (2), which are connected with the left steel wire hook (4) and the right steel wire hook (5), are integrally connected with the left forceps head (1) and the right forceps head (2).

Description

Band pin wire peg hook-type endoscope living body sample pickup tongs

Technical field

This utility model relates to a kind of medical examination operating theater instruments, especially a kind of a kind of sample pickup tongs of taking a sample with the supporting use of endoscope, specifically a kind of band pin wire peg hook-type endoscope living body sample pickup tongs.

Background technology

At present, splanchnoscopy has been widely used in clinical as a kind of aided diagnosis method.In splanchnoscopy, sample pickup tongs is the instrument of an indispensability, and when doctor or patient wished that diseased region carried out pathologic finding, it can enter in the patient body by the speculum forceps road, the tissue of gripping diseased region, for pathologic finding so that make a definite diagnosis.By endoscope sampling painful little, wound is little, so be subjected to doctor and patient's welcome deeply.

The most sample pickup tongs that use generally are made up of binding clip assembly, elongated drag-line, the same elongated elastic outer pipe and the handle that are enclosed within the drag-line outside now, one end of drag-line links to each other with quadric chain in the binding clip assembly, the other end links to each other with movable bracelet on the handle, one end of elastic outer pipe links to each other with the binding clip assembly, and the other end links to each other with handle.Push away, draw movable bracelet to drive drag-line, drag-line drives the quadric chain action, and two symmetrical binding clips that quadric chain drives on the binding clip assembly are realized opening and closing, thereby takes out external by gastroscope pincers road suspect tissue.Because the surface of pathological tissues has hard projection tissue sometimes, common sample pickup tongs can not be got pathological changes tissue or sampling amount deficiency partly by Fu because of slip easily when sampling.In addition, the sample pickup tongs of common quadric chain also has so a kind of risk in clinical, and promptly binding clip binding clip partly links together by rivet and connecting rod.The riveted poor quality or through after repeatedly using, rivet may in use come off, make the binding clip can't normally closed and can't take a sample, the rivet that comes off can fall in the patient body as foreign body and might damage the pincers road of endoscope.

Summary of the invention

The purpose of this utility model provide a kind of simple in structure, be with pin wire peg hook-type endoscope living body sample pickup tongs more reliably, to solve the phenomenon that pathological tissues sampling difficulty and rivet easily come off, slide and can not accurately take a sample, avoid operation risk to improve the sampling accuracy rate.

The technical solution of the utility model is:

A kind of band pin wire peg hook-type endoscope living body sample pickup tongs, comprise the binding clip assembly, the binding clip assembly is mainly by left binding clip 1, right binding clip 2, binding clip seat 3, left side steel wire hook 4, right steel wire hook 5 is formed, left side binding clip 1, right binding clip 2 is journaled on the bearing pin 6, bearing pin 6 is fixed in the binding clip seat 3, left side steel wire hook 4, one end and the corresponding left binding clip 1 of right steel wire hook 5, corresponding rivet 16 on the right binding clip 2,17 link to each other, the other end of left side steel wire hook 4 and right steel wire hook 5 directly or indirectly links to each other with an end of the connection tube 8 that is arranged in binding clip seat 3, the other end of connection tube 8 links to each other with an end of drag-line 9, drag-line 9 is positioned among the elastic outer pipe 14, one end of spring outer tube 14 links to each other with binding clip seat 3, the other end of spring outer tube 14 and drag-line 9 all links to each other with handle portion, it is characterized in that at left binding clip 1, be installed with pin 10 between the right binding clip 2; The rivet 16,17 that links to each other with left steel wire hook 4, right steel wire hook 5 on left side binding clip 1, the right binding clip 2 and corresponding left side pincers 1,2 whole linking to each other of right binding clip.

One end of pin 10 is most advanced and sophisticated, and the other end is an installation end, is provided with two locating holes 11,12 on installation end, and wherein locating hole 11 matches with bearing pin 6, and locating hole 12 matches with another bearing pin 13 on being fixed on binding clip seat 3.

One end of left side steel wire hook 4, right steel wire hook 5 is set on corresponding left binding clip 1, the right binding clip 2.

The beneficial effects of the utility model:

1, it is inaccurate or sampling amount is not enough or get the risk that causes mistaken diagnosis less than sample to have solved sampling that the pathological tissues rat brings.

2, solved the rivet obscission that existing four connecting rod sample pickup tongs in use are prone to.

3, structure is simpler, and is easily manufactured.

Description of drawings

Fig. 1 is this utility model structural representation.

Fig. 2 is the plan structure sketch map of Fig. 1.

Fig. 3 is a right tong head sketch map of the present utility model.

Fig. 4 is the plan structure sketch map of Fig. 3.

Fig. 5 is the structural representation of right drag-line of the present utility model.

Fig. 6 is right drag-line of the present utility model and bearing pin riveted structure sketch map.

Fig. 7 is the structural representation of pin of the present utility model.

Fig. 8 is the plan structure sketch map of Fig. 7.

The specific embodiment

Below in conjunction with drawings and Examples this utility model is further described.

Shown in Fig. 1～8.

A kind of band pin wire peg hook-type endoscope living body sample pickup tongs, comprise that the binding clip assembly is (as Fig. 1, shown in 2), the binding clip assembly is mainly by left binding clip 1, right binding clip 2 is (as Fig. 3,4, left side binding clip 1 and right binding clip 2 symmetries), binding clip seat 3, left side steel wire hook 4, right steel wire hook 5 is formed, left side binding clip 1, right binding clip 2 is journaled on the bearing pin 6, bearing pin 6 is fixed in the binding clip seat 3, left side steel wire hook 4, one end of right steel wire hook 5 be enclosed within corresponding and left binding clip 1, the right binding clip 2 whole rivets 16 that link to each other, be positioned at rivet 16 on 17 and by the riveted joint flange, on 17, and can be around rivet 16,17 rotate (as Fig. 5, shown in 6), the other end of left side steel wire hook 4 and right steel wire hook 5 directly or indirectly links to each other with an end of the connection tube 8 that is arranged in binding clip seat 3, the other end of connection tube 8 links to each other with an end of drag-line 9, drag-line 9 is positioned among the elastic outer pipe 14, one end of spring outer tube 14 links to each other with binding clip seat 3, the other end of spring outer tube 14 and drag-line 9 all links to each other with handle portion, at left binding clip 1, be installed with pin 10 (as Fig. 7 between the right binding clip 2, shown in 8), one end of pin 10 is most advanced and sophisticated, the other end is an installation end, on installation end, be provided with two locating holes 11,12, wherein locating hole 11 matches with bearing pin 6, locating hole 12 matches bearing pin 6 with another bearing pin 13 on being fixed on binding

clip seat

3,13 are positioned between left binding clip 1 and the right binding clip 2 pin 10 can't rotate.

Left side steel wire hook 4, right steel wire are linked up with in 5 holes that also can be set on left binding clip 1, right binding clip 2 respective end during concrete enforcement.

Binding clip assembly of the present utility model, drag-line and elastic overcoat increase should adopt the stainless steel material manufacturing.

It is same as the prior art that this utility model does not describe part in detail.

Claims

1, a kind of band pin wire peg hook-type endoscope living body sample pickup tongs, comprise the binding clip assembly, the binding clip assembly is mainly by left binding clip (1), right binding clip (2), binding clip seat (3), left side steel wire hook (4), right steel wire hook (5) is formed, left side binding clip (1), right binding clip (2) is journaled on the bearing pin (6), bearing pin (6) is fixed in the binding clip seat (3), left side steel wire hook (4), one end and the corresponding left binding clip (1) of right steel wire hook (5), right binding clip (2) is gone up corresponding rivet (16), (17) link to each other, left side steel wire hook (4) directly or indirectly links to each other with an end of the connection tube that is arranged in binding clip seat (3) (8) with the other end that right steel wire is linked up with (5), the other end of connection tube (8) links to each other with an end of drag-line (9), drag-line (9) is positioned among the elastic outer pipe (14), one end of spring outer tube (14) links to each other with binding clip seat (3), the other end of spring outer tube (14) and drag-line (9) all links to each other with handle portion, it is characterized in that in left binding clip (1), be installed with pin (10) between the right binding clip (2); Left side binding clip (1), right binding clip (2) are gone up rivet (16), (17) and corresponding whole linking to each other of left side pincers (1), right binding clip (2) that link to each other with left steel wire hook (4), right steel wire hook (5).

2, band pin wire peg hook-type endoscope living body sample pickup tongs according to claim 1, an end that it is characterized in that pin (10) is for most advanced and sophisticated, the other end is an installation end, on installation end, be provided with two locating holes (11), (12), wherein locating hole (11) matches with bearing pin (6), and locating hole (12) matches with another bearing pin (13) on being fixed on binding clip seat (3).

3, band pin wire peg hook-type endoscope living body sample pickup tongs according to claim 1, an end of its feature left side steel wire hook (4), right steel wire hook (5) is set on corresponding left binding clip (1), the right binding clip (2).