CN202191315U

CN202191315U - Biopsy forceps

Info

Publication number: CN202191315U
Application number: CN201120258777XU
Authority: CN
Inventors: 周勇; 杨凯来; 叶晓程
Original assignee: JIANGSU KANGJIN MEDICAL INSTRUMENT CO Ltd
Current assignee: JIANGSU KANGJIN MEDICAL INSTRUMENT CO Ltd
Priority date: 2011-07-21
Filing date: 2011-07-21
Publication date: 2012-04-18
Anticipated expiration: 2021-07-21

Abstract

A pair of biopsy forceps comprises a forceps head component, a handle component, a spring outer pipe and an inhaul cable; the forceps head component comprises forceps heads, a forceps head frame and a connecting mechanism; the handle component comprises slip rings, core bars and hand rings; a butting pipe and the inhaul cable are positioned in the spring outer pipe; the connecting mechanism in the forceps head component is connected with one end of the butting pipe; the other end of the butting pipe is connected with one end of the inhaul cable; the other end of the inhaul cable is connected with the slip rings; one end of the spring outer pipe is connected with the forceps head frame, and the other end of the spring outer pipe is connected with the core bars; the inhaul cable is made of stainless steel material; and a smooth plastic coating is applied on the surface of the inhaul cable. According to the utility model, the smooth plastic coating is applied on the surface of the inhaul cable, so that friction resistance between the inhaul cable and the inner wall of the spring outer pipe can be reduced effectively when the forceps heads are separated or drawn close, so that the forceps heads can be separated and drawn close flexibly, convenience is provided for operation of doctors, the sampling time can be shortened, and then pains suffered by patients can be relieved; and meanwhile, compared with the structure that a Teflon sleeve is adopted, the pair of biopsy forceps has the advantage that the manufacturing cost is greatly reduced.

Description

Biopsy forceps

Technical field

This utility model relates to a kind of biopsy forceps, belongs to medical instruments field, is used for the living body sampling under the endoscope.

Background technology

At present, splanchnoscopy has been widely used in clinical as a kind of aided diagnosis method.Sample pickup tongs gets into gripping diseased region tissue in the patient body through the speculum forceps road, again the tissue that presss from both sides out is carried out pathological analysis to make a definite diagnosis disease.Endoscope's living tissue sampling is little because of its wound, the convenient splanchnoscopy means that become routine of inspection.

The most sample pickup tongs that use now mainly are made up of binding clip assembly, drag-line, spring outer tube and handle.The binding clip assembly exists coupling type (like Fig. 1) and four link type bindiny mechanisms such as (like Fig. 2).Drag-line is made by the rustless steel steel wire rope; For reducing frictional resistance between steel wire rope and spring outer tube wall, adopt the method for lining Teflon sleeve pipe between drag-line and spring outer tube, but existing Teflon pipe production technology is difficult to guarantee its inside/outside diameter size precision; Make sample pickup tongs in clinical use, be prone to the inflexible phenomenon of binding clip folding; Strengthen doctor's operation easier, increased sample time, thereby increased patient's misery.And use that the Teflon sleeve pipe exists that price is higher, complex manufacturing, shortcoming that work efficiency is lower.

Summary of the invention

The purpose of this utility model provides that a kind of cost is low, binding clip folding biopsy forceps flexibly.

The technical scheme that realizes above-mentioned purpose is: a kind of biopsy forceps, comprise binding clip assembly, Handleset, spring outer tube and drag-line, and the binding clip assembly is made up of binding clip, binding clip frame, bindiny mechanism; Handleset is made up of slip ring, core bar, bracelet, and butt tube and drag-line are positioned at the spring outer tube, and the bindiny mechanism in the binding clip assembly is connected with butt tube one end; The butt tube other end is connected with drag-line one end; The drag-line other end is connected with slip ring, and spring outer tube one end is connected with the binding clip frame, and the spring outer tube other end is connected with core bar; Drag-line adopts stainless steel material to process, and the surface of drag-line has slick plastic coating.

After adopting technique scheme; Because there is the slick plastic coating of one deck in the drag-line surface, can effectively reduce the frictional resistance between drag-line and spring outer tube wall in the folding binding clip process, make that the binding clip folding is flexible; Facilitate to doctor's operation; Shorten sample time, thereby alleviate patient's misery, compare simultaneously and adopt the structure of Teflon sleeve pipe to greatly reduce production cost.

Description of drawings

Fig. 1 is the binding clip modular construction sketch map of coupling type bindiny mechanism;

Fig. 2 is the binding clip modular construction sketch map of four link type bindiny mechanism;

Fig. 3 is the assembly structure sketch map of this utility model.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment this utility model is done further detailed explanation.

Shown in Fig. 1 ~ 3, a kind of biopsy forceps comprises binding clip assembly, Handleset, spring outer tube 9 and drag-line 8; The binding clip assembly is made up of binding clip 1, binding clip frame 2, bindiny mechanism 3, and Handleset is made up of slip ring 4, core bar 5, bracelet 6, and butt tube 7 is positioned at spring outer tube 9 with drag-line 8; Bindiny mechanism 3 in the binding clip assembly is connected with butt tube 7 one ends, and butt tube 7 other ends are connected with drag-line 8 one ends, and drag-line 8 other ends are connected with slip ring 4; Spring outer tube 9 one ends are connected with binding clip frame 2; Spring outer tube 9 other ends are connected with core bar 5, and drag-line 8 adopts stainless steel material to process, and the surface of drag-line 8 has slick plastic coating.

The operation principle of this utility model is following:

Link to each other through bindiny mechanism 3 in plastic drag-line 8 one ends and the binding clip assembly, the other end links to each other with slip ring 4, and drag-line 8 is in spring outer tube 9, and an end of spring outer tube 9 links to each other with binding clip frame 2, and the other end links to each other with core bar 5.Push away, draw slip ring 4 to drive drag-line 8, drag-line 8 drives bindiny mechanism's 3 actions, and two symmetrical binding clips 1 that bindiny mechanism 3 drives on the binding clip assembly are realized folding, thereby play the effect of gripping tissue.There is the slick plastic coating of one deck in drag-line 8 surfaces, can effectively reduce the frictional resistance between plastic drag-line 8 and spring outer tube 9 inwalls in the folding binding clip process.

Claims

1. biopsy forceps; Comprise binding clip assembly, Handleset, spring outer tube (9) and drag-line (8), the binding clip assembly is made up of binding clip (1), binding clip frame (2), bindiny mechanism (3), and Handleset is made up of slip ring (4), core bar (5), bracelet (6); Butt tube (7) and drag-line (8) are positioned at spring outer tube (9); Bindiny mechanism in the binding clip assembly (3) is connected with butt tube (7) one ends, and butt tube (7) other end is connected with drag-line (8) one ends, and drag-line (8) other end is connected with slip ring (4); Spring outer tube (9) one ends are connected with binding clip frame (2); Spring outer tube (9) other end is connected with core bar (5), it is characterized in that: drag-line (8) adopts stainless steel material to process, and the surface of drag-line (8) has slick plastic coating.