CN212282496U

CN212282496U - Ureteral stent tube

Info

Publication number: CN212282496U
Application number: CN202020515641.1U
Authority: CN
Inventors: 郭振宇
Original assignee: Individual
Current assignee: Zhuhai Tianda Biotechnology Co ltd
Priority date: 2020-03-11
Filing date: 2020-04-09
Publication date: 2021-01-05
Anticipated expiration: 2030-04-09
Also published as: WO2021179775A1; CN111346289A

Abstract

The utility model provides a ureteral stent tube, which comprises a tubular structure body and a traction wire, wherein the body is provided with a first end and a second end which are arranged oppositely, the first end of the body is bent into an arc shape, the second end of the body is bent into an arc shape, and the bending direction of the second end of the body is opposite to the bending direction of the first end of the body; the traction wire is fixed on the pipe wall of the body through a degradable fixing wire, one end of the traction wire is a fixed end, the other end of the traction wire is a free end, and the fixed end of the traction wire is fixed with the end part of the first end of the body. Compared with the prior art, adopt the utility model provides a ureteral stent can release the pull wire automatically after putting into internal a period, can pull out this ureteral stent through this pull wire of external tractive, has alleviateed the misery that the cystoscope operation caused the patient and the damage that causes the patient when extracting, has time controllable, extracts advantages such as convenient.

Description

Ureteral stent tube

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a ureteral stent tube.

Background

The ureteral stent is an elongated flexible tube that runs from the kidney to the bladder. When the ureter is obstructed, the ureteral stent tube may support the ureter to enable drainage of urine from the kidney to the bladder.

Ureteral stent tubes are very commonly used in urinary surgery, and at present, no ureteral stent tube can be permanently placed in the body. The existing ureteral stent needs to be pulled out of the ureteral stent in the body by means of a rigid cystoscope, so that the ureteral stent is painful, damaged, long in time and inconvenient to pull out.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a time-controllable ureteral stent tube with convenient extraction is provided.

The utility model provides a ureteral stent tube, which comprises a tubular structure body and a traction wire, wherein the body is provided with a first end and a second end which are arranged oppositely, the first end of the body is bent into an arc shape, the second end of the body is bent into an arc shape, and the bending direction of the second end of the body is opposite to the bending direction of the first end of the body; the traction wire is fixed on the pipe wall of the body through a degradable fixing wire, one end of the traction wire is a fixed end, the other end of the traction wire is a free end, and the fixed end of the traction wire is fixed with the end part of the first end of the body.

Further, the fixed end of the traction wire is sewn and fixed to the end of the first end of the body.

Further, the free end of the pull wire is folded towards the first end of the body.

Furthermore, the fixing wire is sewn on the pipe wall of the body, and the traction wire is fixed on the pipe wall of the body through knotting the two ends of the fixing wire.

Further, the length between the position where the fixing wire is connected with the traction wire and the end of the first end of the body is one third of the total length of the body.

Further, the fixed line is a fast micro georgette line.

The utility model also provides another ureteral stent tube, which comprises a tubular structure body and a traction wire, wherein the body is provided with a first end and a second end which are oppositely arranged, the first end of the body is bent into an arc shape, the second end of the body is bent into an arc shape, and the bending direction of the second end of the body is opposite to the bending direction of the first end of the body; one end of the traction wire is a fixed end, the other end of the traction wire is a free end, a wire ring is connected to the fixed end of the traction wire, the traction wire is sewn to the pipe wall of the body, the free end of the traction wire penetrates through the wire ring on the fixed end of the traction wire, and the traction wire which freely extends on the pipe wall of the body is folded in multiple sections.

Further, the plurality of sections of folded pull wires are tightly connected through the fixing wire.

Further, the fixed line is a fast micro georgette line.

Further, the traction wire is divided into three sections of folds.

Compared with the prior art, adopt the utility model provides a ureteral stent can release the pull wire automatically after putting into internal a period, can pull out this ureteral stent through this pull wire of external tractive to can avoid carrying out cystoscope removal again, alleviate the misery that cystoscope operation caused the patient and the damage that causes the patient when pulling out, have time controllable, extract advantages such as convenient.

Drawings

Fig. 1 is a schematic perspective view of a ureteral stent in embodiment 1 of the present invention;

fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic view of the connection between the pulling wire and the fixing wire of the ureteral stent in embodiment 1 of the present invention;

fig. 4 is a schematic perspective view of a ureteral stent in embodiment 2 of the present invention;

fig. 5 is a schematic view of the connection between the pulling wire and the fixing wire of the ureteral stent in embodiment 2 of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict.

Example 1

Referring to fig. 1 and 2, the present embodiment provides a ureteral stent, which includes a tubular body 10 and a traction wire 20, wherein the body 10 is made of a medical polymer material, such as: polyethylene, silicone-based block copolymers, and the like. The body 10 is provided with a first end 11 and a second end 12 which are oppositely arranged, the first end 11 of the body 10 is bent into a circular arc shape, the second end 12 is bent into a circular arc shape, and the bending direction of the second end 12 of the body 10 is opposite to the bending direction of the first end 11 of the body 10; the traction wire 20 is fixed on the pipe wall of the body 10 through a degradable fixing wire 30, one end of the traction wire 20 is a fixed end 21, the other end is a free end 22, and the fixed end 21 of the traction wire 20 is fixed with the end of the first end 11 of the body 10. A plurality of urethral catheterization holes 40 are arranged on the tube wall of the body 10.

Preferably, the fixed end 21 of the traction wire 20 is fixed to the end of the first end 11 of the body 10 by sewing. In order to avoid allergy to the traction wire 20 after the ureteral stent is implanted into a human body, the material of the traction wire 20 in the present application is preferably a biocompatible material, such as: and (4) silk threads. In addition, when used by men, the length of the traction wire 20 is 22 cm; for female use, the pull wire 20 has a length of 12 cm. While the material of the fixation wire 30 may be a degradable material, such as: starch or polysaccharide. The fixing line 30 in this embodiment is a fast micro george line.

Preferably, the free end of the traction wire 20 is folded towards the first end 11 of the body 10. The fixing thread 30 is sewed on the wall of the body 10, and the traction thread 20 is fixed on the wall of the body 10 by knotting both ends of the fixing thread 30. As shown in fig. 3, the specific operations are: one end of the fixing thread 30 is connected with a sewing needle, the sewing needle penetrates through the tube wall of the body 10 and penetrates out of the tube wall of the body 10, so that the fixing thread 30 is sewn on the tube wall of the body 10, the other end of the fixing thread 30 and one end of the fixing thread 30 with the sewing needle are knotted to fix the traction thread 20 on the tube wall of the body 10, and then the sewing needle is cut off.

The length between the position where the fixing wire 30 is connected with the traction wire 20 and the end of the first end 11 of the body 10 is one third of the total length of the body 10.

In practical operation, after the ureteral stent is implanted into a ureter, the first end 11 of the body 10 and the free end 22 of the pull wire 20 are both located in the bladder, so that the pull wire 20 can be smoothly discharged out of the body along with urine after falling off.

The fixing wire 30 is used for fixing the traction wire 20 for providing a restraining effect to the traction wire 20, and on the other hand, when the ureteral stent is implanted into a human body, the fixing wire 30 can be slowly hydrolyzed in urine, and after the fixing wire 30 is hydrolyzed, the traction wire 20 gradually falls off and can be discharged out of the body along with the urine, so that the traction wire 20 can be pulled out of the body by pulling the traction wire 20 outside the body.

It is obvious from above technical scheme, adopt this the utility model discloses ureteral stent pipe that the embodiment provided, this ureteral stent pipe implants human back, and the urine can be with the slow hydrolysis of fixed line 30, through being 4 weeks time (about 28 days promptly). When the fixing wire 30 is hydrolyzed, the pulling wire 20 gradually falls off and is discharged out of the body along with urine, and at the moment, if the pulling time of the ureteral stent tube is reached, the pulling wire 20 can be pulled from the urethral orifice, so that the ureteral stent tube implanted in the body can be pulled out of the body.

Therefore, the ureteral stent tube of the embodiment can automatically release the traction wire 20 after being placed in a body for a period of time, and the ureteral stent tube can be pulled out by pulling the traction wire 20 in vitro, so that the removal of a cystoscope can be avoided, the pain of a patient caused by cystoscope operation and the damage to the patient caused by the cystoscope operation during the pulling out are relieved, and the ureteral stent tube has the advantages of controllable time, convenience in pulling out and the like.

Example 2

Referring to fig. 4, the present embodiment provides a ureteral stent tube, which includes a tubular body 10 and a traction wire 20, wherein the body 10 is made of medical polymer materials, such as: polyethylene, silicone-based block copolymers, and the like. The body 10 is provided with a first end 11 and a second end 12 which are oppositely arranged, the first end 11 of the body 10 is bent into a circular arc shape, the second end 12 is bent into a circular arc shape, and the bending direction of the second end 12 of the body 10 is opposite to the bending direction of the first end 11 of the body 10; compared with the embodiment 1, the difference is that one end of the pulling wire 20 is a fixed end 21, the other end is a free end 22, a wire loop 23 is connected to the fixed end 21 of the pulling wire 20, the pulling wire 20 is sewed on the tube wall of the body 10, and the free end of the pulling wire 20 passes through the wire loop 23 on the fixed end 21 of the pulling wire 20. Referring to fig. 5, the specific operations are: the free end of the pull wire 20 is connected with a sewing needle, the sewing needle penetrates through the tube wall of the body 10 and penetrates out of the tube wall of the body 10 so as to sew the pull wire 20 on the tube wall of the body 10, the sewing needle penetrates through a thread ring 23 on the fixed end 21 of the pull wire 20, then the sewing needle is cut off, and at the moment, the pull wire 20 is fixed on the tube wall of the body 1.

The traction wire 20 freely extending on the tube wall of the body 1 is folded in multiple sections, the traction wire 20 folded in multiple sections is tightly connected through a fixing wire 30 (in this embodiment, a quick and micro georgette wire), in this embodiment, the traction wire 20 is folded in three sections, and when the traction wire 20 is used by a male, the length of the traction wire 20 is 29 cm; each segment is about 8 cm; for female use, the pull wire 20 has a length of 23cm, with each segment being about 6 cm.

The fixing wire 30 in this embodiment is used to avoid inconvenience caused by too long of the pulling wire 20 affecting the implantation of the ureteral stent, when the ureteral stent is implanted into a human body, the fixing wire 30 can be slowly hydrolyzed in urine, and after the fixing wire 30 is hydrolyzed, the pulling wire 20 will gradually fall off and will be discharged out of the body along with the urine, so that the pulling wire 20 can be pulled out of the body in vitro.

The above-mentioned embodiments only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A ureteral stent comprises a tubular body and a traction wire, wherein the body is provided with a first end and a second end which are arranged oppositely, the first end of the body is bent into a circular arc shape, the second end of the body is bent into the circular arc shape, and the direction of bending the second end of the body is opposite to the direction of bending the first end of the body; the novel traction wire is characterized in that the traction wire is fixed on the pipe wall of the body through a degradable fixing wire, one end of the traction wire is a fixed end, the other end of the traction wire is a free end, and the fixed end of the traction wire is fixed with the end part of the first end of the body.

2. The ureteral stent tube of claim 1, wherein the fixed end of the pull wire is sutured to the end of the first end of the body.

3. The ureteral stent tube of claim 1 or 2, wherein the free end of the pull wire is folded towards the first end of the body.

4. The ureteral stent tube according to claim 1, wherein the fixing wire is sewn on the tube wall of the body, and the traction wire is fixed on the tube wall of the body by knotting both ends of the fixing wire.

5. The ureteral stent tube according to claim 1, 2 or 4, wherein a length between a position where the fixing wire is connected with the traction wire and an end of the first end of the body is one third of a total length of the body.

6. The ureteral stent tube according to claim 5, wherein the fixation wire is a fast micro geor wire.

7. A ureteral stent comprises a tubular body and a traction wire, wherein the body is provided with a first end and a second end which are arranged oppositely, the first end of the body is bent into a circular arc shape, the second end of the body is bent into the circular arc shape, and the direction of bending the second end of the body is opposite to the direction of bending the first end of the body; the novel multifunctional folding drawing wire is characterized in that one end of the drawing wire is a fixed end, the other end of the drawing wire is a free end, a wire ring is connected to the fixed end of the drawing wire, the drawing wire is sewn on the tube wall of the body, the free end of the drawing wire penetrates through the wire ring on the fixed end of the drawing wire, and the drawing wire extending freely on the tube wall of the body is folded in multiple sections.

8. The ureteral stent tube according to claim 7, wherein the plurality of segments of folded pull wires are tied together by a securing wire.

9. The ureteral stent tube of claim 8, wherein the securing wire is a fast micro geor wire.

10. The ureteral stent tube of claim 7, 8 or 9, wherein the pull wire is split into three folds.