CN201643330U

CN201643330U - Ureteral stents drain tube with anti up-shifting function

Info

Publication number: CN201643330U
Application number: CN201020133797XU
Authority: CN
Inventors: 陈朝晖
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-16
Filing date: 2010-03-16
Publication date: 2010-11-24
Anticipated expiration: 2020-03-16

Abstract

The utility model relates to a ureteral stents drain tube with an anti up-shifting function, comprising a drain tube (1). The whole tube cavity is provided with uniform inner-diameter pore canals. The utility model is characterized in that one end of the drain tube (1) is provided with an elastic ring (2) which can be elastically extended, and the other end of the drain tube (1) is provided with a mushroom head sample structure (3) which has flexible memory and can be deformed. The top end of the mushroom head sample structure (3) is connected with a synthetic guide wire (4) which is used for draw the mushroom head sample structure (3) to be extended, and the diameter of synthetic guide wire (4) is same with that of the drain tube (1). The ureteral stents drain tube with the anti up-shifting function has simple structure, eliminates the up-shifting possibility of the drain tube, completely overcomes the defect that a ureteral mirror is used or even an open surgery is operated to take out the traditional double-J tube as the double-J tube shifts up, and eliminates the complication of double-J tube implantation.

Description

Has the anti-ureter bracket drainage tube of going up shifting function

Technical field

This utility model relates to the medical machinery field, specifically is a kind of anti-ureter bracket drainage tube of going up shifting function that has.

Background technology

The ureter bracket drainage tube that Urology Surgery is commonly used is commonly called as " double J pipe " at present, is to connect renal pelvis and ureter, and a plurality of side openings are arranged, and performance mediation drain renal pelvis urine is to the effect of bladder.The double J pipe of domestic and international application is made of polyurethane usually at present, has shape memory function, two ends are bent to form elastic ring under naturalness, respectively in order to place renal pelvis and bladder to play fixation, the centre is a hollow straight tube, and tube wall is provided with aperture, plays the inner support drainage, that is support ureter with it, so that renal pelvis and ureteral calculus or urine etc. enter bladder along inside and outside the pipe.

Insert the conventional double J pipe that seal wire supports through cystoscopic operating cavity earlier, under the normal condition, under the support of seal wire and guiding, enter renal pelvis, and after withdrawing from seal wire from the double J pipe inner chamber, the two end portions of double J pipe is recovered curl shape, the elastic ring at two ends catches on renal pelvis and bladder respectively, makes double J pipe can not be shifted.But, because annular crimping portion can be stretched, when the ureteral peristalsis amplitude was big, crimping portion was stretched and can be shifted by moving on to ureter epimere intracavity on the ureteric orifice, then can't see the tail end of double J pipe, can't extract double J pipe by cystoscope at intravesical.

Summary of the invention

The purpose of this utility model provides a kind of be beneficial to support, drain, prevents the ureter bracket drainage tube of displacement

A kind of ureter bracket drainage tube with anti-last shifting function, comprise drainage tube, whole tube chamber has even internal diameter duct, it is characterized in that: an end of drainage tube forms the elastic ring that can elasticity stretches, form and have the deformable mushroom of a flexible Memorability spline structure at the drainage tube other end, be connected with on the top of a mushroom spline structure and be used to stretch the mushroom synthetic seal wire that a spline structure stretches it and diameter is identical with drainage tube.

The elastic ring at described drainage tube and its two ends and a mushroom spline structure adopt silicone rubber or the one-shot forming of polyurethane high molecule material to make.A described mushroom spline structure is under relaxed state, and its diameter is greater than the diameter of drainage tube, and it expands to hold under the relaxed state and form between the drainage tube and is close to 90 ° of angles.

This utility model is simple in structure, has eliminated the probability of moving on the drainage tube, has overcome fully owing to moving the defective that the needs that cause use ureteroscope even open surgery to take out on traditional double J pipe, has eliminated a kind of complication of double J pipe implantation.

Description of drawings

Fig. 1 is a structural representation of the present utility model,

Fig. 2 is and the structural representation of a spline structure under normal condition of pestering,

Fig. 3 is and the structural representation of a spline structure under extended state of pestering.

Among the figure: 1-drainage tube, 2-elastic ring, a 3-spline structure of pestering, 4-synthesizes seal wire, the 5-endoporus.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.Among Fig. 1, a kind of ureter bracket drainage tube with anti-last shifting function, comprise drainage tube 1, whole tube chamber has even internal diameter duct, it is characterized in that: an end of drainage tube 1 forms the elastic ring 2 that can elasticity stretches, form and have the deformable mushroom of a flexible Memorability spline structure 3 at drainage tube 1 other end, being connected with the synthetic seal wire 4 that the mushroom spline structure 3 that is used to stretch stretches it and diameter and drainage tube 1 are identical on the top of a mushroom spline structure 3.

Described drainage tube 1 adopts silicone rubber or the one-shot forming of polyurethane high molecule material to make with the elastic ring 2 and a mushroom spline structure 3 at its two ends.

The diameter of a described mushroom spline structure 3 under normal condition is greater than the diameter of drainage tube 1, and it expands and forms 90 ° of angles between end and the drainage tube 1.

Using method of the present utility model: 1. insert from the endoporus 5 of drainage tube 1 with the thin wire guide of elasticity, with front end elbow top straight (the elbow shape becomes straight line);

2. the tension tail end synthesizes seal wire 4, and a feasible and mushroom spline structure 3 structures become flat straight tubular (as Fig. 3);

3. by cystoscope the drainage tube 1 that seal wire supports is sent to renal pelvis always from ureteric orifice along ureter;

4. after withdrawing from metal-cored support seal wire, drainage tube 1 front end forms elbow naturally and catches on renal pelvis, after unclamping the synthetic seal wire 4 of tail end, a mushroom spline structure 3 resile (as Fig. 2), because the volume of a mushroom spline structure 3 is bigger, and " " the tube wall part forms almost right angle with the wall of urinary bladder at ureteric orifice position to the head of pestering, and therefore can not slip into ureter substantially, the effect of moving on realization is anti-.

Claims

1. one kind has the anti-ureter bracket drainage tube of going up shifting function, comprise drainage tube (1), whole tube chamber has even internal diameter duct, it is characterized in that: an end of drainage tube (1) forms the elastic ring (2) that can elasticity stretches, form and have the deformable mushroom of a flexible Memorability spline structure (3) at drainage tube (1) other end, be connected with on the top of a mushroom spline structure (3) and be used for the synthetic seal wire (4) that a mushroom spline structure (3) stretches it and diameter is identical with drainage tube (1) that stretches.

2. according to claim 1 have an anti-ureter bracket drainage tube of going up shifting function, it is characterized in that: the elastic ring (2) at described drainage tube (1) and its two ends and a mushroom spline structure (3) employing silicone rubber or the one-shot forming of polyurethane high molecule material are made.

3. the ureter bracket drainage tube with anti-last shifting function according to claim 1, it is characterized in that: the diameter of a described mushroom spline structure (3) under normal condition is greater than the diameter of drainage tube (1), and it expands and forms 90 ° of angles between end and the drainage tube (1).