Ureteral skin stoma device

Abstract

The utility model relates to a ureter skin stoma device which comprises a first suture net, a connecting pipe, a second suture net, a connector, a one-way valve and a baffle. A through hole is formed in the center of the first suture net and connected with the second suture net, and a connecting pipe is fixed to the through hole in the bottom of the first suture net. The connector is located at the through hole in the top of the first suture net, provided with a round connector and internally provided with a one-way valve, and ensures one-way flow of urine. The baffle is annular, larger than the connector in diameter and higher than the skin on the outer side of the abdominal wall after suturing. The first suture net and the second suture net are both made of polypropylene materials, the first suture net is sutured to the inner side of the abdominal wall during operation, and the second suture net is sutured to the ureter so as to fix the connecting pipe and the ureter. A gel coating is arranged at the bottom of the connecting pipe, so that fusion with the ureteral epithelium is enhanced. The connector is detachable and can be connected with an external urine bag.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically a ureterodermal stoma device. Background Technology

[0002] In clinical practice, when the bladder cannot be preserved and complex urinary tract reconstruction is not feasible, ureterocutaneous stoma of the distal ureter is often performed to ensure kidney function and the smooth drainage of urine. Currently, most ureterocutaneous stoma surgeries are performed laparoscopically. After the ureter is separated, it is pulled out through the abdominal wall incision to create a skin stoma. The stoma site can be managed using methods such as skin flap insertion, eversion of the nipple, or pedicled skin tube stoma. Postoperatively, a stoma baseplate of appropriate size and a urine collection bag are selected and fixed externally.

[0003] Traditional ureterocutaneous stoma surgery often results in eczema, erosion, and infection of the surrounding skin due to postoperative immersion of the stoma skin in urine from the collection bag. The ureteral tip, protruding above the abdominal wall, may necrose due to impaired blood supply caused by inadequate intraoperative protection and excessive abdominal wall skin tension. Surgical damage to the abdominal wall surrounding the stoma can also easily lead to weakness in that area, resulting in a parastomal hernia. Furthermore, postoperative ureteral stenosis is difficult to correct non-invasively. This patent aims to provide a ureterocutaneous stoma device that avoids direct contact between urine and the skin surrounding the stoma, places the ureteral tip within the abdominal cavity, and strengthens the abdominal wall. Utility Model Content

[0004] The purpose of this invention is to provide a ureterodermal stoma device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ureterodermal stoma device, comprising a suture mesh one, a through hole at the center of the suture mesh one, a connecting tube at the bottom of the suture mesh one, a suture mesh two near the end of the connecting tube, a connector at the through hole at the top of the suture mesh one, a one-way valve inside the connector to control the urine flow only from inside the body to outside the body, and a baffle fixed at the top of the suture mesh one, the baffle being annular with a diameter larger than the connector.

[0006] In a preferred embodiment of this invention, the connecting tube gradually thickens from its end to the base end connected to the stitching mesh.

[0007] In a preferred embodiment of this invention, the baffle is positioned above the outer skin of the abdominal wall after suturing.

[0008] In a preferred embodiment of this utility model, the first and second stitching nets are made of polypropylene material.

[0009] In a preferred embodiment of this invention, the connector and the stitching mesh are detachably connected.

[0010] In a preferred embodiment of this invention, the outer wall of the end of the connecting tube is provided with a gel coating.

[0011] The ureterocutaneous stoma device proposed in this utility model has the following beneficial effects:

[0012] Compared to traditional ureterostomy, this device places the ureteral tip inside the abdominal cavity, avoiding the need for the ureter to pass through the abdominal wall and the potential for ischemic necrosis of the ureteral tip.

[0013] This device uses a series of drainage tubes, valves, and connecting rings to unidirectionally drain urine from the body. Its structural design provides excellent sealing, ensuring that urine will not flow back into the body under normal circumstances. It also makes the external part of the stoma easier to keep clean and dry compared to traditional surgical methods, preventing skin diseases such as eczema, erosion, and infection caused by urine soaking the skin, and reducing the difficulty of nursing care.

[0014] This device uses a suture mesh to fix the entire device to the abdominal wall, preventing displacement. This effect gradually strengthens over time, and the mesh can also prevent parastomal hernia caused by local abdominal wall weakness due to the stoma.

[0015] This device further ensures rapid adhesion and fusion of the ureteral epithelium and the drainage tube by using a suture mesh and gel coating at the end of the ureter, thus preventing urine leakage into the abdominal cavity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a front view of the present invention;

[0018] Figure 3 This is a partial schematic diagram of the present invention;

[0019] The components are: 1. Suture mesh one, 2. Connecting tube, 3. Suture mesh two, 4. Baffle, 5. Connector, 6. One-way valve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 One specific embodiment of this utility model is as follows:

[0022] A ureterodermal stoma device includes a suture mesh 1 with a through hole at its center. A connecting tube 2 is fixed at the through hole at the bottom of the suture mesh 1. A second suture mesh 3 is located near the end of the connecting tube 2, and the connecting tube 2 gradually widens from its end to the base end connected to the suture mesh 1. A connector 5, a circular interface, is located at the through hole at the top of the suture mesh 1 for connection to an external urine bag. A one-way valve 6 is located inside the connector to control the flow of urine, ensuring it flows only from inside the body to the outside. A baffle 4, annular in shape and larger in diameter than the connector 5, is also fixed at the top of the suture mesh 1. After suturing, the baffle 4 protrudes above the outer skin of the abdominal wall.

[0023] In this embodiment, suture mesh 1 and suture mesh 3 are made of polypropylene. During surgery, suture mesh 1 is sutured to the inner side of the abdominal wall, and suture mesh 3 is sutured to the ureter within the abdominal cavity, thus fixing the connecting tube 2 to the ureter. The bottom of the connecting tube 2 has a gel coating to further increase its integration with the ureteral epithelium. The connector 5 is threaded to suture mesh 1, and the top of the connector 5 has threads for connecting to the urine bag. The one-way valve is a diaphragm-type one-way valve, which opens the diaphragm to allow urine to flow out smoothly when it flows out of the body, and closes the diaphragm at other times to prevent urine backflow. If the patient develops ureteral stenosis after surgery, the connector 2 can be directly removed for non-invasive surgical correction.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ureterocutaneous stoma device, characterized in that, It includes a suture mesh one (1), a through hole in the center of the suture mesh one (1), a connecting tube (2) at the bottom of the suture mesh one (1), a suture mesh two (3) near the end of the connecting tube (2), a connector (5) at the through hole at the top of the suture mesh one (1), a one-way valve (6) inside the connector to control the urine flow from the body to the outside, and a baffle (4) fixed at the top of the suture mesh one (1). The baffle (4) is annular and has a diameter larger than that of the connector (5).

2. The ureteral skin ostomy device of claim 1, wherein, The connecting tube (2) gradually thickens from its end to the base end connected to the stitching mesh (1).

3. The ureteral skin ostomy device of claim 1, wherein, The baffle (4) is higher than the outer skin of the abdominal wall after suturing.

4. The ureteral skin ostomy device of claim 1, wherein, The first suture mesh (1) and the second suture mesh (3) are made of polypropylene material.

5. The ureteral skin ostomy device of claim 1, wherein, The connector (5) and the stitching mesh (1) are detachably connected.

6. The ureteral skin ostomy device of claim 1, wherein, The outer wall of the end of the connecting tube (2) is provided with a gel coating.

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