CN2778203Y

CN2778203Y - Hook-type stomach tissue sampling clamp

Info

Publication number: CN2778203Y
Application number: CN 200520070013
Authority: CN
Inventors: 丁勇
Original assignee: NANGJING MAICHUANG MEDICAL APPLIANCES CO Ltd
Current assignee: NANGJING MAICHUANG MEDICAL APPLIANCES CO Ltd
Priority date: 2005-03-23
Filing date: 2005-03-23
Publication date: 2006-05-10
Anticipated expiration: 2015-03-23

Abstract

The utility model relates to a hook-type stomach tissue sampling clamp which has the advantage of simple structure, and the connection between pulling cables and a clamp head is reliable. The utility model comprises clamp head components (1), pulling cables (2), an elastic outer tube (3) and handle components (4). The utility model is characterized in that a left clamp head (7) and a right clamp head (8) of the clamp head components (1) are arranged on a clamp head seat (10) through fixing rivets (9); one end of the left clamp head (7) and one end of the right clamp head (8) extend from the clamp head seat (10), and the other end is positioned in a guiding groove opening (11) in the clamp head seat (10) and is provided with connecting holes (12) used for being penetrated and connected with one end of connecting steel wires (13); the other end of the connecting steel wires (13) is penetrated through the clamp head seat (10) and is fixed on one end of the connecting sleeves (14); one end of the pulling cables (2) is also fixed on the other end of the connecting sleeves (14); the connecting sleeves (14) are installed on one end of the elastic outer tubes (13) close to the clamp head components (1). The utility model solves the problems of the existing biopsy forceps with a four-connecting-rod structure that the rivets are easy to fall off to lead to a failing operation.

Description

Coupling type gastric tissue sample pickup tongs

Technical field

This utility model relates to a kind of medical examination operating theater instruments, specifically is used for the coupling type gastric tissue sample pickup tongs that endoscope takes a sample.

Background technology

At present, splanchnoscopy has been widely used in clinical as a kind of aided diagnosis method.In splanchnoscopy, biopsy forceps 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.

Existing biopsy forceps generally is 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, 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 flexible handle 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 flexible handle to drive drag-line, drag-line drives the quadric chain action, and two symmetrical clamps that quadric chain drives on the binding clip assembly are realized opening and closing, thereby take out suspect tissue external from gastroscope.

But, there is risk in the biopsy forceps of quadric chain in clinical, because the connection of four connecting rods with closing-up together, the riveted poor quality or through after the opening and closing of several times, rivet may come off in use, and clamp can't cause biopsy forceps not take out smoothly by normally closed, can cause the failure of performing the operation when serious, increase patient's misery, influence the prestige of hospital.

Summary of the invention

The purpose of this utility model provides a kind of simple in structure, drag-line and is connected more reliable coupling type gastric tissue sample pickup tongs with binding clip, with the biopsy forceps that solves existing four-bar linkage structure the rivet that occurs easily come off and cause hands to state the problem of failure.

The technical solution of the utility model is:

A kind of coupling type gastric tissue sample pickup tongs, comprise binding clip assembly 1, drag-line 2, elastic outer pipe 3, Handleset 4, drag-line 2 is sleeved in the elastic outer pipe 3, one end of drag-line 2 and elastic outer pipe 3 respectively with Handleset 4 in flexible handle 5 link to each other with core bar 6, the other end links to each other with binding clip assembly 1, it is characterized in that the left binding clip 7 in the binding clip assembly 1, right binding clip 8 is installed on the binding clip seat 10 by fixing rivet 9, and can rotate around fixing rivet 9, left side binding clip 7, one end of right binding clip 8 stretches out outside the binding clip seat 10 as jaw, their other end is arranged in guiding slot port 11 on the binding clip seat 10 as motion end, this motion end is equipped with the connecting hole 12 that cross-under connects steel wire 13 1 ends, the other end that connects steel wire 13 passes in the end that binding clip seat 10 is fixed on joint sleeve 14, one end of drag-line 2 also is fixed in the other end of joint sleeve 14, and joint sleeve 14 is installed in elastic outer pipe 13 near in the end of binding clip assembly 1.

Elastic outer pipe 3 can adopt following two kinds of structures when being connected with binding clip seat 10:

Elastic outer pipe 3 is sleeved on the end of binding clip seat 10 and is weldingly connected with it.

Elastic outer pipe 3 press-fits in the endoporus that is fixed on binding clip seat 10 1 ends.

The beneficial effects of the utility model:

1, solves the rivet obscission that existing four connecting rod biopsy forcepss in use are prone to, thereby avoided such risk.

2, simple in structure, easily manufactured.

Description of drawings

Fig. 1 is that coupling type gastric tissue sample pickup tongs of the present utility model is formed structural representation.

Fig. 2 is the structural representation of connection steel wire 13 of the present utility model.

Fig. 3 is the mounting structure sketch map of connection steel wire 13 of the present utility model.

Fig. 4 is one of structural representation of binding clip assembly 1 of the present utility model.

Fig. 5 is that the A of Fig. 4 is to view.

Fig. 6 be binding clip assembly 1 of the present utility model structural representation two.

Fig. 7 is that the A of Fig. 6 is to view.

The specific embodiment

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

Embodiment one.

Shown in Fig. 1～5.

A kind of coupling type gastric tissue sample pickup tongs, its overall structure as shown in Figure 1, it comprises binding clip assembly 1, drag-line 2, elastic outer pipe 3, Handleset 4, drag-line 2 is sleeved in the elastic outer pipe 3, one end of drag-line 2 and elastic outer pipe 3 respectively with Handleset 4 in flexible handle 5 link to each other with core bar 6, the other end is sleeved on the end of the binding clip seat 10 in the binding clip assembly 1 and be weldingly connected with it (as Fig. 4), left binding clip 7 in the binding clip assembly 1, right binding clip 8 is installed on the binding clip seat 10 by fixing rivet 9, and can rotate around fixing rivet 9, left side binding clip 7, one end of right binding clip 8 stretches out outside the binding clip seat 10 as jaw, their other end is arranged in guiding slot port 11 on the binding clip seat 10 as motion end, this motion end is equipped with the connecting hole 12 that cross-under connects steel wire 13 1 ends, the other end that connects steel wire 13 passes in the end that binding clip seat 10 is fixed on joint sleeve 14, one end of drag-line 2 also is fixed in the other end of joint sleeve 14, joint sleeve 14 is installed in elastic outer pipe 13 near in the end of binding clip assembly 1, as Fig. 4, shown in 5.

Key point of the present utility model is to replace quadric chain of the prior art with shaping steel wire (promptly connecting steel wire 13).Can at first steel wire be processed into shape shown in Figure 2 during manufacturing, promptly an end plate becomes annular, in the connecting hole 12 on the motion end of left binding clip 7 of penetrating of annulus end or right binding clip 8, with laser steel wire is weldingly fixed on together (as Fig. 3) side by side then, the stain 15 among Fig. 3 is pad.

The other end and the drag-line 2 of steel wire (connecting steel wire 13) link together by joint sleeve 14, and drag-line 2 links together with flexible handle 5.Push away, draw flexible handle 5 to drive drag-line 2, drag-line 2 passes to power and connects steel wire 13, and two symmetrical jaws that drive on the binding clip assembly 1 are realized opening and closing.So just can realize and quadric chain biopsy forceps identical functions.

Embodiment two.

Shown in Fig. 1,6,7.

A kind of coupling type gastric tissue sample pickup tongs, its overall structure as shown in Figure 1, it comprises binding clip assembly 1, drag-line 2, elastic outer pipe 3, Handleset 4, drag-line 2 is sleeved in the elastic outer pipe 3, one end of drag-line 2 and elastic outer pipe 3 respectively with Handleset 4 in flexible handle 5 link to each other with core bar 6, the other end press-fits in the endoporus of an end of the binding clip seat 10 that is fixed in the binding clip assembly 1 (as shown in Figure 6), left binding clip 7 in the binding clip assembly 1, right binding clip 8 is installed on the binding clip seat 10 by fixing rivet 9, and can rotate around fixing rivet 9, left side binding clip 7, one end of right binding clip 8 stretches out outside the binding clip seat 10 as jaw, their other end is arranged in guiding slot port 11 on the binding clip seat 10 as motion end, this motion end is equipped with the connecting hole 12 that cross-under connects steel wire 13 1 ends, the other end that connects steel wire 13 passes in the end that binding clip seat 10 is fixed on joint sleeve 14, one end of drag-line 2 also is fixed in the other end of joint sleeve 14, joint sleeve 14 is installed in elastic outer pipe 13 near in the end of binding clip assembly 1, as Fig. 6, shown in 7.

The remainder of present embodiment is identical with embodiment one.

Part that this utility model is not described in detail such as Handleset 4 etc. are same as the prior art.

Claims

1, a kind of coupling type gastric tissue sample pickup tongs, comprise binding clip assembly (1), drag-line (2), elastic outer pipe (3), Handleset (4), drag-line (2) is sleeved in the elastic outer pipe (3), one end of drag-line (2) and elastic outer pipe (3) respectively with Handleset (4) in flexible handle (5) link to each other with core bar (6), the other end links to each other with binding clip assembly (1), it is characterized in that the left binding clip (7) in the binding clip assembly (1), right binding clip (8) is installed on the binding clip seat (10) by fixing rivet (9), and can rotate around fixing rivet (9), left side binding clip (7), one end of right binding clip (8) stretches out outside the binding clip seat (10) as jaw, their other end is arranged in guiding slot port (11) on the binding clip seat (10) as motion end, this motion end is equipped with the connecting hole (12) that cross-under connects steel wire (13) one ends, the other end that connects steel wire (13) passes in the end that binding clip seat (10) is fixed on joint sleeve (14), one end of drag-line (2) also is fixed in the other end of joint sleeve (14), and joint sleeve (14) is installed in elastic outer pipe (13) near in the end of binding clip assembly (1).

2, coupling type gastric tissue sample pickup tongs according to claim 1 is characterized in that elastic outer pipe (3) is sleeved on the end of binding clip seat (10) and is weldingly connected with it.

3, coupling type gastric tissue sample pickup tongs according to claim 1 is characterized in that elastic outer pipe (3) press-fits in the endoporus that is fixed on binding clip seat (10) one ends.