CN208988964U - The disposable biopsy forceps of Gastrointestinal Endoscopes - Google Patents

Abstract

The utility model provides a kind of disposable biopsy forceps of Gastrointestinal Endoscopes, including binding clip frame, binding clip portion, bourdon tube, wirerope, sliding block and Handleset, Handleset includes handlebar and handle portion, has sliding groove inside handlebar, wirerope tail end is fixed with sliding block；Handlebar sliding groove is connected with spring close to the inner top surface and slip front of wirerope penetrating end, inner hole is provided on sliding block tail end, inner hole inner face is fixed with limit spring, and limited block is connected with by limit spring, handlebar surface then has limit hole, limited block after pulling back sliding block with limit hole cooperate grafting, handlebar correspond at limit hole have can from limit hole on top by limited block eject limit hole release link.The utility model structure is simple, and design rationally, can keep closing up at jaw when sample pickup tongs moves forward and backward, and avoids jaw from loosening or jaw opening and closing accidentally sampling operation occurs in non-sample tap, down-sample fault, guarantee sampling sample quality.

Description

The disposable biopsy forceps of Gastrointestinal Endoscopes

Technical field

The utility model relates to medical instruments especially to sample equipment technology field more particularly to a kind of Gastrointestinal Endoscopes with once Property use biopsy forceps.

Background technique

Sample pickup tongs is provided for acquiring upper lower digestive tract, respiratory tract, living tissue sample in urinary system and reproductive system To the special equipment of pathological analysis.It is the sample pickup tongs that patient selects suitable types by doctor's clinical appraisal of profession.It peeps inside Under mirror monitoring, sample pickup tongs enters human body by endoscope channel, and binding clip is directed at affected area, pushes sliding block opening jaw, be close to by Tissue is sampled, sliding block is pulled to close up jaw, pulls back outer tube, takes out sample pickup tongs, completes sampling operation.

Common biopsy forceps in order to avoid the sampling at jaw loosens, before taking out sample, needs to protect after sampling Card sliding block is constantly in the state of pulling back, and when misoperation, being easy to happen jaw and loosening causes sampling to fall or non- Close up situations such as accidentally sampling operation occurs for jaw at sampling.

Utility model content

Technical problem to be solved by the utility model is: the deficiency in order to overcome the prior art, the utility model provides one Kind can keep closing up at jaw when sample pickup tongs moves forward and backward, and avoid jaw from loosening or jaw occurs in non-sample tap and open Close the disposable biopsy forceps of Gastrointestinal Endoscopes of accidentally sampling operation.

The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of disposable living body of Gastrointestinal Endoscopes Sample pickup tongs, the binding clip portion of binding clip frame front end is hinged on including binding clip frame and by connecting rod, and the binding clip portion tail end is connected with bullet Reed pipe, hollow in the bourdon tube and be equipped with wirerope, the wirerope front end is connect with connecting rod, and wirerope rear end is fixed on cunning In block, the sliding block inner hollow and through there is Handleset, the Handleset includes the handle being applied in sliding block Bar and the handle portion for being connected to handlebar tail portion, the handlebar inside have the sliding groove penetrated for wirerope, the steel Cord tail end be the side side of L-type structure and L-type structure extend along rope capacity direction and penetrate in sliding groove, L-type knot Another side edge length of structure is then greater than the depth of sliding groove and fixes along the outside bending of sliding groove depth direction with sliding block；Described Handlebar sliding groove is connected with spring close to the inner top surface and slip front of wirerope penetrating end, is provided on the sliding block tail end interior Hole, the inner hole inner face is fixed with limit spring, and is connected with limited block by limit spring, and the handlebar surface then has There is limit hole, the limited block cooperates grafting with limit hole after pulling back sliding block, and the handlebar corresponds at limit hole With can from limit hole on top by limited block ejection limit hole release link.

Handlebar, which corresponds to, has the reseting cavity that upper top is carried out for release link below limit hole.

Release link is Z-type structure, and the reseting cavity is the Z-type cavity structure of design corresponding with release link.

In use, when sample pickup tongs enters endoscope and extends at sampling, operator holds handlebar, and sliding block is in bullet Under spring effect, by wirerope and the end flexible fastening of handlebar sliding groove inner top surface, wirerope can be kept to generally remain tensioning shape State, binding clip portion substantially closes up, and facilitates into sampling, binding clip portion, which will not be opened, causes unnecessary damage to surrounding.When arrival takes After at sample, sliding block is pushed forward, wirerope to sinciput and pushes connecting rod that binding clip portion is driven to open under sliding block effect, and loosens cunning Block, binding clip portion substantially close up under the action of the spring.Limit spring is compressed between limited block and inner hole at this time, can continue to pull back Movable slider, until limit spring is sprung back limited block and limit hole grafting at limited block to limit hole.Wirerope is in tensioning shape State, binding clip portion also closely close up under the tension of wirerope, can extract sample pickup tongs out at this time and complete sampling.After extraction, press Release link unlocks limited block and limit hole, and sliding block can be pushed to loosen binding clip portion, facilitates taking-up sample.

The utility model has the beneficial effects that the disposable biopsy forceps of Gastrointestinal Endoscopes provided by the utility model, Structure is simple, and design rationally, can keep closing up at jaw when sample pickup tongs moves forward and backward, jaw is avoided to loosen or take non- Jaw opening and closing accidentally sampling operation occurs for sample mouth, down-samples fault, guarantees sampling sample quality.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is the structural schematic diagram of the utility model optimum embodiment.

Fig. 2 is the enlarged diagram in Fig. 1 at A.

1 in figure, binding clip frame 2, binding clip portion 3, bourdon tube 4, wirerope 5, sliding block 6, handlebar 7, handle portion 8, slide Dynamic slot 9, spring 10, inner hole 11, limit spring 12, limited block 13, limit hole 14, release link 15, reseting cavity.

Specific embodiment

The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram, Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.

A kind of disposable biopsy forceps of Gastrointestinal Endoscopes as depicted in figs. 1 and 2 is the optimal implementation of the utility model Example, the binding clip portion 2 of 1 front end of binding clip frame is hinged on including binding clip frame 1 and by connecting rod, 2 tail end of binding clip portion is connected with bullet Reed pipe 3, hollow in the bourdon tube 3 and be equipped with wirerope 4,4 front end of wirerope is connect with connecting rod, and 4 rear end of wirerope is consolidated It is scheduled in sliding block 5,5 inner hollow of sliding block and through there is a Handleset, the Handleset includes being applied in sliding block 5 Interior handlebar 6 and the handle portion 7 for being connected to 6 tail portion of handlebar have inside the handlebar 6 and to penetrate for wirerope 4 Sliding groove 8,4 tail end of wirerope extend and wear along 4 length direction of wirerope for the side side of L-type structure and L-type structure Enter in sliding groove 8, another side edge length of L-type structure is then greater than the depth of sliding groove 8 and along 8 depth direction of sliding groove to being folded outward It is curved fixed with sliding block 5.

6 sliding groove 8 of handlebar is connected with spring 9 close to the inner top surface of 4 penetrating end of wirerope and 5 front end of sliding block, Inner hole 10 is provided on 5 tail end of sliding block, 10 inner face of inner hole is fixed with limit spring 11, and connects by limit spring 11 It is connected to limited block 12.6 surface of handlebar then has a limit hole 13, the limited block 12 after pulling back sliding block 5 with limit Position hole 13 cooperates grafting, and length of the limit spring 11 when limited block 12 is inserted into limit hole 13 is no more than 10 depth of inner hole 1/2, i.e., when limited block 12 is inserted into limit hole 13, limited block 12 still has the position of 10 depth of at least 1/2 inner hole to be located at inner hole 10 It is interior, it can effectively ensure that the limit strength of the sliding block 5 in last tensioning locking.In actual design, it is contemplated that binding clip portion 2 substantially closes It closes and only there is relatively short stroke between tensioning closure completely, in 5 latch-up-free of sliding block, between limited block 12 and limit hole 13 Stroke length it is shorter, and be substantially closed with binding clip portion 2 and tensioning closing stroke is roughly the same completely, avoid excessively pulling steel wire Rope 4 makes 2 closing force of binding clip portion is excessive binding clip portion 2 is caused to be damaged.

Have at the corresponding limit hole 13 of the handlebar 6 can from limit hole 13 on top limited block 12 ejected into limit hole 13 release link 14.There is the reseting cavity 15 that upper top is carried out for release link 14 below the corresponding limit hole 13 of handlebar 6.Release link 14 For Z-type structure, the reseting cavity 15 is the Z-type cavity structure of design corresponding with release link 14.

In use, when sample pickup tongs enters endoscope and extends at sampling, operator holds handlebar 6, and sliding block 5 exists Under spring 9 acts on, by wirerope 4 and 6 sliding groove of handlebar, 8 inner top surface end flexible fastening, wirerope 4 can be kept to generally remain Tensioning state, binding clip portion 2 substantially closes up, and facilitates into sampling, binding clip portion 2, which will not be opened, causes unnecessary damage to surrounding. After reaching at sampling, sliding block 5 is pushed forward, and wirerope 4 to sinciput and pushes connecting rod to drive binding clip portion 2 under the effect of sliding block 5 It opens, and loosens sliding block 5, binding clip portion 2 substantially closes up under the effect of spring 9.Bullet is limited between limited block 12 and inner hole 10 at this time Spring 11 is compressed, and can continue to pull back sliding block 5, until the rebound of limit spring 11 will limit at limited block 12 to limit hole 13 Block 12 and 13 grafting of limit hole.Wirerope 4 is in tensioning state, and binding clip portion 2 also closely closes up under the tension of wirerope 4, Sample pickup tongs can be extracted out at this time and complete sampling.After extraction, release link 14 is pressed, limited block 12 and limit hole 13 are unlocked, i.e., Sliding block 5 can be pushed to loosen binding clip portion 2, facilitate taking-up sample.

The disposable biopsy forceps of the Gastrointestinal Endoscopes being designed in this way, structure is simple, design rationally, sample pickup tongs advance and It can keep closing up at jaw when retrogressing, nip part can be generally remained when advancing and closed up, wirerope 4 is then tensioned after the completion of sampling It is not releasable to guarantee that nip part is closed completely, avoids jaw from loosening or jaw opening and closing accidentally sampling operation occurs in non-sample tap, Fault is down-sampled, guarantees sampling sample quality.

It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims Property range.

Claims (3)

1. a kind of disposable biopsy forceps of Gastrointestinal Endoscopes, including binding clip frame (1) and before being hinged on binding clip frame by connecting rod The binding clip portion (2) at end, described binding clip portion (2) tail end are connected with bourdon tube (3), it is hollow in the bourdon tube (3) and be equipped with steel Cord (4), wirerope (4) front end are connect with connecting rod, and wirerope (4) rear end is fixed in sliding block (5), the sliding block (5) inner hollow and through there is a Handleset, the Handleset include the handlebar (6) being applied in sliding block (5) and even It connects the handle portion (7) in handlebar (6) tail portion and is penetrated it is characterized by: having inside the handlebar (6) for wirerope (4) Sliding groove (8), wirerope (4) tail end is the side side of L-type structure and L-type structure along wirerope (4) length direction Extend and penetrate in sliding groove (8), another side edge length of L-type structure is then greater than the depth of sliding groove (8) and along sliding groove (8) The outside bending of depth direction and sliding block (5) are fixed；Handlebar (6) sliding groove (8) is interior close to wirerope (4) penetrating end Top surface and sliding block (5) front end are connected with spring (9), are provided with inner hole (10) on sliding block (5) tail end, inner hole (10) inner end Face is fixed with limit spring (11), and is connected with limited block (12) by limit spring (11), and handlebar (6) surface then has Have limit hole (13), the limited block (12) pull back sliding block (5) afterwards with limit hole (13) cooperate grafting, the handle Have at bar (6) corresponding limit hole (13) can at limit hole (13) on top by the reset of limited block (12) ejection limit hole (13) Bar (14).

2. the disposable biopsy forceps of Gastrointestinal Endoscopes as described in claim 1, it is characterised in that: the handlebar (6) there is the reseting cavity (15) that upper top is carried out for release link (14) below corresponding limit hole (13).

3. the disposable biopsy forceps of Gastrointestinal Endoscopes as claimed in claim 2, it is characterised in that: the release link It (14) is Z-type structure, the reseting cavity (15) is the Z-type cavity structure of design corresponding with release link (14).