CN2295458Y

CN2295458Y - Instrument for fetching urinary calculus

Info

Publication number: CN2295458Y
Application number: CN 97217585
Authority: CN
Inventors: 韦章庆
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-15
Filing date: 1997-05-15
Publication date: 1998-10-28
Anticipated expiration: 2007-05-15

Abstract

The utility model discloses an instrument for fetching urinary calculus, which is composed of a casing tube (1) and a guide wire (2). One end of the casing tube (1) is provided with a bounce device (5); one end of the guide wire (2) is fixed with a grab bucket (3) which can be expanded and closed. Due to the elastic function of the bounce device (5), the casing tube (1) is pushed against to compel the grab bucket (3) to be healed up to present the state of grasping the urinary calculus all the time, and the guide wire (2) is extracted, and then the urinary calculus can be taken out. The utility model has the advantages of simple structure, convenient operation, and good urinary calculus fetching effect.

Description

The urinary stone grabber

This utility model relates to a kind of medical apparatus and instruments, relates in particular to the urinary stone grabber.

Chinese patent CN-2078603U discloses a kind of flexible double-cavity saccule dilating and aspirating lithotomy device, and it is made up of lithotomy forceps, two threeways, two double channel catheter, two switch and the conduit levers that are contained in the threeway in the threeway that are contained in that have a sacculus.Chela on the lithotomy forceps can stretch out from the operating cavity of double channel catheter and open, also can the retraction operation chamber in.This dislodger is collection expansion, attract, cover stone three function is the medical apparatus and instruments of the treatment ureteral calculus of one.Though it is good to get the stone effect, the structure more complicated.

CN-2162213Y discloses another kind of calculus of urethra taking equipment, and it adopts a handle, and the handle front end is fixed with " U " shape cover that is bent into by finer wire; " U " shape cover is inserted in the male urethra, the end is enclosed within on the calculus piece; Handle outwards spurs " U " shape cover and calculus can be taken out, and characteristic of simple structure is arranged, but when pulling " U " shape cover, calculus might break away from " U " shape cover and can not disposable calculus be taken out.

The purpose of this utility model just provide a kind of simple in structure, easy to operate, can clench the disposable urinary stone grabber that calculus is taken out of calculus.

For achieving the above object, urinary stone grabber of the present utility model is made up of sleeve pipe and seal wire, and an end of seal wire is fixed with the grab bucket of an expansible closure; Also have an adjustable pipe on the seal wire, play and draw that grabbing bucket to grab bucket sends into the sleeve pipe effect smoothly in; A telescopic end is fixed with a rebounding device, compresses this device and fixes with the relevant position of seal wire, because the rebound effect of this device, sleeve pipe pushes forward, and telescopic front end forces grab bucket to be closed up, and is promptly calculus shape all the time.

Since adopted the grab bucket of expansible closure and the rebounding device on the sleeve pipe in the above-mentioned solution, when calculus is caught in grab bucket, the elastic recovery effect of rebounding device, sleeve pipe is pushed forward, and grab bucket is closed up, and calculus is tightly held, extract seal wire again out, calculus can be taken out.Simply, safe, practical, make the calculus patient avoid operating on getting the hardship of stone.

Below in conjunction with the drawings and specific embodiments this utility model is described in further detail.

Fig. 1 is the front view of a kind of embodiment of urinary stone grabber of the present utility model;

Fig. 2 is that an end has grab bucket in Fig. 1 embodiment, and there is the seal wire front view of an adjustable pipe centre;

Fig. 3 is the sleeve pipe front view that an end has rebounding device in Fig. 1 embodiment;

Fig. 4 is the sleeve pipe front view that an end has another kind of rebounding device.

Urinary stone grabber shown in Figure 1 is made up of sleeve pipe and seal wire, and an end of seal wire 2 is fixed with the grab bucket 3 of expansible closure, and grab bucket 3 is to be made of 3 single steel wires 6, prong outwardly, bore in shape such as garden; The every blunt smooth pestle shape that is slightly in single steel wire 6 distal tip 8 gardens, single steel wire 6 sections far away

Medial surface has screw-like reverse hook teeth 7; Also has an adjustable pipe 4 on the seal wire 2; One end of sleeve pipe 1 is fixed with rebounding device 5, and this rebounding device is elasticity and the suitable spring of grab bucket 3 elasticity, and an end of spring is fixed on the sleeve pipe 1.The compression spring, and with the anchor clamps of finger, mosquito forceps or other type that the other end and the seal wire 2 of spring is fixing, because the elastic reaction of spring, sleeve pipe is pushed ahead, telescopic front end forces grab bucket 3 to be closed up.

The rebounding device 5 of sleeve pipe one end shown in Figure 4 is " Ω " shape elastic ring, and this ring is identical with the effect of spring.

Certainly, the grab bucket 3 in the urinary stone grabber of the present utility model is not limited only to be made of 3 single steel wires, can also be made of 4,5,6 or 7 single steel wires.Rebounding device 5 on the sleeve pipe can also be the elastic ring of other shape.

During use, earlier a flexible steel wire rope is inserted into calculus from urethral orifice, is inserted in sleeve pipe 1 to the calculus place through steel wire rope again, withdraw from steel wire rope, inject the normal saline lubricate through sleeve pipe, again the adjustable pipe on the seal wire 24 is moved to grab bucket 3 places, grab bucket 3 is closed up, will grab bucket and 3 send into sleeve pipe 1, return adjustable pipe 4, promote seal wire 2 and make grab bucket 3 when the calculus face, slowly retreat sleeve pipe 1, grab bucket 3 will be opened automatically, seal wire 2 is slowly advanced to calculus portion, calculus will be stuck in the grab bucket 3, at this moment sleeve pipe 1 is pushed forward, when waiting grab bucket 3 chucking calculus, compression rebounding device 5, and fix with the relevant position of seal wire, haul out seal wire 2 and sleeve pipe 1, take out calculus.

Urinary stone grabber of the present utility model not only can be caught taking-up with calculus in human body urethra, bladder, ureter, the renal pelvis, for calculus of intrahepatic duct and the bile duct retained calculus of putting drainage tube, also can in art or by drainage tube, grasp, also can be used for the extracting of foreign body in bronchus.

Claims

1. a urinary stone grabber is made up of sleeve pipe and seal wire, it is characterized in that: an end of seal wire (2) is fixed with the grab bucket (3) of expansible closure, and seal wire (2) is gone up also has an adjustable pipe (4); One end of sleeve pipe (1) is fixed with a rebounding device (5).

2. urinary stone grabber according to claim 1 is characterized in that: described grab bucket (3) is to be made of 3,4,5,6 or 7 single steel wires (6), prong outwardly, bore in shape such as garden.

3. urinary stone grabber according to claim 2 is characterized in that: the blunt smooth pestle shape that is slightly in described single steel wire (6) distal tip (8) garden; Single steel wire (6) is far away The section medial surface has screw-like reverse hook teeth (7).

4. urinary stone grabber according to claim 1 is characterized in that: described rebounding device (5) is that an end is fixed on the spring on the sleeve pipe (1).

5. urinary stone grabber according to claim 1 is characterized in that: described rebounding device (5) is " Ω " shape elastic ring.