CN212166306U

CN212166306U - Ureteral stent tube capable of being pulled out automatically

Info

Publication number: CN212166306U
Application number: CN201921720646.1U
Authority: CN
Inventors: 吕共生
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-12-18
Anticipated expiration: 2029-10-10

Abstract

The utility model provides a ureteral stent, which comprises a body, a traction wire and degradable biological glue. Wherein, the body is a tubular structure, and two ends of the body are reverse J-shaped like the traditional ureteral stent and are divided into a kidney end and a bladder end. The difference is that a thin line is connected at the bladder end of the ureteral stent, the thin line is made of non-absorbable material, and the thin line is folded and fixed at the bladder end of the stent in a U shape by using absorbable biological glue. After the internal period of time is kept somewhere to the support tube, degradable biological glue is degraded gradually and is absorbed, and the fine rule of folding is stretched out, and the other end of fine rule is discharged along with patient's urination is external, and the patient can drag the external fine rule one end of discharge, extracts the external body with the support tube. Can avoid the pain of removal through a cystoscope, greatly relieve the damage to the mind and physiology of a patient and reduce the medical expense.

Description

Ureteral stent tube capable of being pulled out automatically

Technical Field

The utility model belongs to the technical field of medical instrument and specifically relates to a novel ureteral stent tube is related to.

Background

Ureteral stent tubes are required to be conventionally reserved after ureteral calculus, tumor and stenosis operations and percutaneous nephroscope operations in urinary surgery, and the purposes of avoiding ureteral stenosis, reducing hydronephrosis, relieving ureteral obstruction and the like are achieved. However, the prior ureteral stent tube needs to be pulled out through a cystoscope after a period of operation, and the cystoscope operation brings great pain to patients.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims at providing a novel bracket tube used for remaining in the ureter, which can avoid the pain of removal through a cystoscope, greatly reduce the damage to the mind and the physiology of a patient and reduce the medical expense.

The purpose of the utility model is realized like this: this kind of novel ureteral stent is different with traditional stent, the utility model discloses the implementation provides a ureteral stent, including body, pull wire, degradable biological glue. Wherein, the body is a tubular structure, and two ends of the body are reverse J-shaped like the traditional ureteral stent and are divided into a kidney end and a bladder end. The difference is that a thin line is connected at the bladder end of the ureteral stent, the thin line is made of non-absorbable material, and the thin line is folded and fixed at the bladder end of the stent in a U shape by using absorbable biological glue. After the internal period of time is kept somewhere to the support tube, absorbable biological glue is degraded and absorbed gradually, and folding fine rule is stretched and is come, and the other end of fine rule is discharged extracorporeally along with patient's urination, and the patient can drag the external fine rule one end of discharge, extracts extracorporeally with the support tube. The utility model discloses can absorb the biological glue use amount is very few, absorbs soon, can not appear absorbing thoroughly cause ureter and urethra acute obstruction to lead to patient to appear dangerous state of an illness emergence, and "U" is folding to be fixed and can not influence ureter stent tube and put into the operation through the ureteroscope in support tube bladder end moreover.

Drawings

FIG. 1: is a schematic view of the whole structure of the released traction line before the degradation of the biological glue

FIG. 2: is the schematic diagram of the bonding mode of the traction line and the cross section of the tube wall of the body by the degradable biological glue of the embodiment of the utility model

FIG. 3: is the overall structure schematic diagram of the traction wire after release after the degradation of the biological glue of the embodiment of the utility model

Detailed Description

The following detailed description of the embodiments of the present invention refers to the accompanying drawings:

see fig. 1. The ureteral stent tube capable of being pulled out automatically comprises a body 1, a traction wire 2 and degradable biological glue 3. The main body 1 is of a tubular structure like a traditional ureteral stent, two ends of the main body are respectively bent in a J shape in opposite directions, and small holes are uniformly distributed in the wall of the middle tube. The body 1 is made of medical material but is non-absorbable and is connected with a traction wire. One end of the traction wire 2 is connected with the cross section of the wall of the bladder end tube of the body, and degradable biological glue is not needed in the connection. The length of the traction line can be different according to different urethra lengths of male or female patients and can be about 10-30cm, the traction line is divided into a plurality of sections which are fixed on the cross section of the wall of the bladder end tube of the main body by degradable biological adhesive and repeatedly folded into a U shape, so that the ureteral stent tube is not obstructed to pass through the channel in the ureteroscope body and is easy to disperse. The degradable biological glue 3 is used for bonding the traction wire 2, and the dotted bonding diameter can be smaller than 1mm, so that the use amount of the degradable biological glue is small, and the damage to a human body caused by incomplete degradation is avoided. The degradable biological glue material can be various degradable biological materials, such as starch or polysaccharide, and the degradation time can be adjusted according to the type and the dosage of the biological glue required by the disease condition.

See fig. 2. The traction line is divided into a plurality of sections by the degradable biological glue and is adhered to the cross section of the tube wall of the body, the adhesion surface is distributed on the cross section of the tube wall in a point shape, so that the adhered traction line is in a plurality of U shapes, and the traction line is mainly prevented from protruding out of the tube wall of the body to influence the passage of the traction line in the ureteroscope on the cross section of the tube wall of the body in the point adhesion manner.

See fig. 3. After the degradable biological glue 3 is absorbed, the traction wire 2 automatically extends, the free end is discharged from the urethral orifice along with the urination of the patient, and the patient can pull the traction wire to pull out the ureteral stent out of the body. Thereby, pain of inserting the cystoscope into the urethra is reduced and medical expenses are saved.

Claims

1. The ureteral stent capable of being automatically pulled out is characterized by comprising a body, a traction wire and degradable biological glue, wherein the body is of a tubular structure, two ends of the body are in a reversed-phase J shape like the traditional ureteral stent and are respectively a kidney end and a bladder end, the bladder end of the body is connected with a thin line, the thin line is made of non-absorbable material, and the thin line is folded and fixed at the bladder end of the body in a U shape by the degradable biological glue.

2. The ureteral stent tube according to claim 1, wherein the material of the body is a medical polymer material.

3. The ureteral stent tube according to claim 1, wherein the pull wire is a non-degradable medical material and is biocompatible.

4. The ureteral stent tube according to claim 1, wherein the starting end of the pull wire is linked with the body as a fixed link, and then linked as a "U" link as a riveted link of degradable material.

5. The ureteral stent tube according to claim 1, wherein the remaining links to the body of the pull wire except the start end are all fixed by a degradable material, and the degradable material is degradable by an enzyme contained in urine.

6. The ureteral stent tube according to claim 1, wherein the length of the traction wire can be varied according to the sex and height of the patient, and can be 10-30 cm.