CN201631249U

CN201631249U - Biopsy forceps of endoscope

Info

Publication number: CN201631249U
Application number: CN2010201273272U
Authority: CN
Inventors: 张婵娟; 时百明
Original assignee: Anrei Medical HZ Co Ltd
Current assignee: Anrei Medical HZ Co Ltd
Priority date: 2010-03-10
Filing date: 2010-03-10
Publication date: 2010-11-17
Anticipated expiration: 2020-03-10

Abstract

The utility model discloses biopsy forceps of an endoscope, which comprise a handle and a transmission wire; the far end of the transmission wire is connected with a forceps head, and the near end thereof is connected with a sliding handle which is connected on the handle in a sliding way; a spring hose is sleeved on the outer surface of the transmission wire; a runner is sleeved on the near end of the transmission wire; the runner is arranged on the handle in a rotating way, wherein the sliding handle can slide along the axial direction of the transmission wire; the transmission wire and the runner are fixed in the circumferential direction and are not fixed in the axial direction; and the transmission wire and the sliding handle are not fixed in the circumferential direction and are limited and connected in the axial direction. The technical scheme can realize a rotation function, can effectively position a lesion biopsy target which is difficult to be accurately in place by adjusting the endoscope, significantly improves the convenience of the surgical operation of a clinician, and promotes the effective improvement of accurate clinical diagnosis.

Description

A kind of endoscope living body sample pickup tongs

Technical field

This utility model relates to and a kind ofly is used for sample of tissue in the digestive system or polyp, tumor is stung the apparatus of getting, and particularly relates to a kind of endoscope living body sample pickup tongs.

Background technology

Endoscopic biopsy is the important means and the foundation of pathological changes in the diagnosis digestive system, along with this technology widespread usage clinically, clinical performance requirement to sample pickup tongs is also more and more higher, the conventional in the market sample pickup tongs structure of using is more similar, can basic living tissue the stinging of realization get function, but when clinical use, the pincers of lesion tissue are got the adjusting that the location relies on endoscope itself fully, to narrow positions (as esophagus, intestinal) there is significant limitation in accurate and effective biopsy, and the positive that influences the patient detects accuracy rate.

Summary of the invention

For solving above-mentioned technical problem, the purpose of this utility model provides a kind of endoscope living body sample pickup tongs, can realize spinfunction, can effectively locate by regulating endoscope and still be difficult to the focus biopsy target that accurately puts in place, obviously improve the convenience of clinician's operation technique, and promote that clinical accurate diagnosis is effectively improved.

For achieving the above object, this utility model has adopted following technical scheme:

A kind of endoscope living body sample pickup tongs, comprise handle and driving wire, the far-end of described driving wire connects binding clip, the near-end of driving wire is connected with slide handle on being slidingly connected at handle, described driving wire outside is arranged with spring hose, the near-end of described driving wire is arranged with runner, runner rotates and is arranged on the handle, wherein, described slide handle can endwisely slipping along driving wire, the circumferential fixed axis of described driving wire and runner is to fixing, described driving wire and slide handle circumferentially not fixedly axial limiting be connected.

As preferably, the near-end socket of above-mentioned driving wire is fixed with conduit, and conduit is connected with the runner molding.Conduit be have certain support strength, outer cross section is odd-shaped pipe fitting, cooperates to realize transmitting and rotates and can move axially with irregularly-shaped hole on the runner (cross or other non-circular), the convenient installation simple in structure made.In addition, above-mentioned conduit can adopt this mode with being connected also of runner: the irregularly-shaped hole in a promptly newly-increased tumbler and the runner is complementary, and conduit and tumbler are fixed.

As preferably, the near-end of above-mentioned spring hose is arranged with guide pipe, and described spring hose and guide pipe are all affixed with handle.Guide pipe is a bourdon tube thicker, that have certain support strength, can avoid the connecting portion fracture like this, guarantees reliable move of conduit in spring hose.

As preferably, above-mentioned spring hose is the spring hose that outer surface has covered plastics layer.It can certainly be spring hose with covered plastics layer.

For reducing the gap of driving wire and spring hose, the idle stroke of beating and producing when probability and spring hose pitch of the laps that produces when reducing rotation preferably is arranged with lubrication management in above-mentioned driving wire outside, the sheathed spring hose in lubrication management outside.

Above-mentioned driving wire is some steel wires or single-strand rope.Preferred individual wire or single-strand rope are to have pliability and torsional strength preferably.

Above-mentioned binding clip comprises pliers cup and cup, and two pliers cups are hinged on the upper end of cup in the mode of interlock mutually, and the lower end of two pliers cups is connected with the far-end of driving wire.

As preferably, the far-end of above-mentioned spring hose is provided with rotating cylinder, the lower end of rotating cylinder and described cup circumferentially not fixedly axial limiting be connected.

Impel following two kinds of the pulling structure optimization of two pliers cups interlock: a kind of is the binding clip of light and handy formula hook structure, and the lower end of described pliers cup is connected with the steel wire hook, and the steel wire hook is fixedlyed connected with the far-end of driving wire by connecting cylinder; Another kind is the binding clip of traditional quadric chain, and the lower end of described pliers cup is connected with brace, and brace and push-pull bar flexibly connect, and push-pull bar is fixedlyed connected with the far-end of driving wire.

This utility model is owing to adopted above technical scheme, runner and driving wire can transmission rotate also and can relatively move, rotate the binding clip that driving wire just can rotating spring flexible pipe far-end by runner like this, can realize one-handed performance, in 360 ° of scopes continuous rotary fine adjustment function, have advantages such as simple in structure, that operation is reliable gently, easy to operate.The technical program has solved the problem that existing sample pickup tongs is difficult to accurately locate and get at the tissue forceps of narrow zone difficulty, can effectively locate by regulating endoscope and still be difficult to the focus biopsy target that accurately puts in place, obviously improve the convenience of clinician's operation technique, and promote that clinical accurate diagnosis is effectively improved.

Description of drawings

Fig. 1: structural representation of the present utility model (handle portion);

Fig. 2: structural representation of the present utility model (spring hose part);

Fig. 3: the structural representation of this utility model runner;

The tong head sketch map of Fig. 4: this utility model embodiment 1;

The C-C cutaway view of Fig. 5: Fig. 4;

The tong head sketch map of Fig. 6: this utility model embodiment 1;

The D-D cutaway view of Fig. 7: Fig. 6;

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is made a detailed explanation.

Embodiment 1:

As Fig. 1～a kind of endoscope living body sample pickup tongs shown in Figure 5, comprise handle 1 and driving wire 5, the far-end of described driving wire 5 connects binding clip, the near-end of driving wire 5 is connected with slide handle 2 on being slidingly connected at handle 1, described driving wire 5 outsides are arranged with spring hose 8, the near-end of described driving wire 5 is arranged with runner 6, runner 6 rotates and is arranged on the handle 1, wherein, described slide handle 2 can endwisely slipping along driving wire 5, described driving wire 5 and runner 6 circumferential fixed axis are to fixing, described driving wire 5 and slide handle 2 circumferentially not fixedly axial limiting be connected.

In the present embodiment, as Fig. 1, shown in Figure 3, the near-end socket of above-mentioned driving wire 5 is fixed with conduit 4, the irregularly-shaped hole 61 molding sockets on conduit and the runner 6; The near-end of described spring hose 8 is arranged with guide pipe 7, and described spring hose 8 and guide pipe 7 are all affixed with handle 1; As shown in Figure 2, described spring hose 8 has the spring hose of covered plastics layer 81 for outer surface, and described driving wire 5 outsides are arranged with lubrication management 9, the sheathed spring hose 8 in lubrication management 9 outsides, and described driving wire 5 is an individual wire; As shown in Figure 1, the near-end of driving wire 5 and conduit 4 inserts in the slide handle 2 and passes through stationary magazine creel 3 and slide handle 2 snappings.

As Fig. 4, shown in Figure 5, described binding clip comprises pliers cup 10 and cup 12, two pliers cups 10 are hinged on the upper end of cup 12 by pin 13 in the mode of interlock mutually, the lower end of two pliers cups 10 is connected with the far-end of driving wire 5 by steel wire hook 11 respectively, the head of two steel wires hook 11 is hung in the hole of tip of pliers cup 10, and the end of steel wire hook 11 is fixed by connecting cylinder 14 with driving wire 5; The far-end of described spring hose 8 is fixed with and cup 12 co-axial rotating cylinders 13, and rotating cylinder 13 is installed in the buckle of cup 12 and can keeps relative rotation, and promptly both realize circumferentially fixing and axial limiting connects;

During the operation beginning, promote slide handle 2 and can make stationary magazine creel 3 rectilinear motion together, force the driving wire 5 generation rectilinear motions affixed, thereby make two steel wires hook 11 motions of fixedlying connected, finally make pliers cup 10 that the action of open and closes takes place with driving wire with stationary magazine creel.During rotating wheel 6, drive conduit 4 and rotate, conduit 4 drives driving wire 5 and rotates, and driving wire 5 drives pliers cup 10 and cup 12 rotates, thereby realizes 360 degree rotations.

Embodiment 2:

As Fig. 6, a kind of endoscope living body sample pickup tongs shown in Figure 7, only be with the different of embodiment 1: the lower end of described pliers cup 10 is connected with brace 15, and brace 15 flexibly connects with push-pull bar 16, and push-pull bar 16 is fixedlyed connected with the far-end of driving wire 5.Wherein, the head of two braces 15 is riveted and can be rotated with pliers cup 10 respectively, and the end of brace 15 and push-pull bar 16 are riveted and can be rotated, and push-pull bar 16 is fixedlyed connected with driving wire 5.Other are identical with embodiment 1.

During the operation beginning, promote slide handle 2 and can make stationary magazine creel 3 rectilinear motion together, force the driving wire 5 generation rectilinear motions affixed with stationary magazine creel, thereby make the push-pull bar 16 of fixedlying connected that rectilinear motion take place with driving wire, thereby force pliers cup 10 that four connecting rod transmissions take place, realize that the action of open and close takes place pliers cup 10.During rotating wheel 6, drive conduit 4 and rotate, conduit 4 drives driving wire 5 and rotates, and driving wire drives the pliers cup and cup rotates, thereby realizes 360 degree rotations.

Claims

1. endoscope living body sample pickup tongs, comprise handle (1) and driving wire (5), the far-end of described driving wire (5) connects binding clip, the near-end of driving wire (5) is connected with slide handle (2) on being slidingly connected at handle (1), described driving wire (5) outside is arranged with spring hose (8), it is characterized in that, the near-end of described driving wire (5) is arranged with runner (6), runner (6) rotates and is arranged on the handle (1), wherein, described slide handle (2) can be along the endwisely slipping of driving wire (5), described driving wire (5) and runner (6) circumferentially fixed axis to fixing, described driving wire (5) and slide handle (2) circumferentially not fixedly axial limiting be connected.

2. a kind of endoscope living body sample pickup tongs according to claim 1 is characterized in that the near-end socket of described driving wire (5) is fixed with conduit (4), and conduit (4) is connected with runner (6) molding.

3. a kind of endoscope living body sample pickup tongs according to claim 2 is characterized in that the near-end of described spring hose (8) is arranged with guide pipe (7), and described spring hose (8) and guide pipe (7) are all affixed with handle (1).

4. a kind of endoscope living body sample pickup tongs according to claim 3 is characterized in that described spring hose (8) has the spring hose of covered plastics layer for outer surface.

5. a kind of endoscope living body sample pickup tongs according to claim 4 is characterized in that, described driving wire (5) outside is arranged with lubrication management (9), lubrication management (9) outside sheathed spring hose (8).

6. a kind of endoscope living body sample pickup tongs according to claim 5 is characterized in that described driving wire (5) is some steel wires or single-strand rope.

7. according to each described a kind of endoscope living body sample pickup tongs in the claim 1 to 6, it is characterized in that, described binding clip comprises pliers cup (10) and cup (12), two pliers cups (10) are hinged on the upper end of cup (12) in the mode of interlock mutually, and the lower end of two pliers cups (10) is connected with the far-end of driving wire (5).

8. a kind of endoscope living body sample pickup tongs according to claim 7 is characterized in that the far-end of described spring hose (8) is provided with rotating cylinder (13), the lower end of rotating cylinder (13) and described cup (12) circumferentially not fixedly axial limiting be connected.

9. a kind of endoscope living body sample pickup tongs according to claim 8 is characterized in that, the lower end of described pliers cup (10) is connected with steel wire hook (11), and steel wire hook (11) is fixedlyed connected with the far-end of driving wire (5) by connecting cylinder (14).

10. a kind of endoscope living body sample pickup tongs according to claim 8, it is characterized in that, the lower end of described pliers cup (10) is connected with brace (15), and brace (15) flexibly connects with push-pull bar (16), and push-pull bar (16) is fixedlyed connected with the far-end of driving wire (5).