Drainage urethra dilatation device
By designing a dilated tube body with a conical end, smooth layer and urination hole, combined with the expansion of the annular airbag, the damage and drainage difficulties of traditional urethral dilators in the case of urethral stenosis are solved, and the effective expansion of the urethra and urine are achieved. Liquid drainage.
Patent Information
- Application Number
- CN202420381998.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-02-28
AI Technical Summary
Traditional metal probe urethral dilators are prone to damage and cannot effectively drain urine in the case of urethral stenosis, which affects operation and makes it difficult to push and expand the dilated tube.
A drainage urethra dilated device is designed, including an expansion tube body with a conical end, a smooth layer and a urinary hole, equipped with an annular airbag for urethra dilation, which gradually reaches an outer diameter of 28Fr through the expansion of the airbag and is arranged at the end. Urination holes facilitate urine drainage.
The device facilitates access to the urethra through a smooth layer and a conical surface design. The expansion of the annular airbag realizes gradual expansion of the urethra. The setting of the urinary hole ensures urine drainage, solving the problems of damage and drainage difficulties in traditional devices in the case of urethral stenosis.
Smart Images
Figure CN222324093U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical technology, and specifically relates to a urethra drainage and dilation device. Background Art
[0002] Urethral stricture is one of the common diseases in urology, which is more common in men. It can be divided into congenital, inflammatory, traumatic and iatrogenic. Long-term urethral stricture causes dilatation of the proximal urethra, compensatory hypertrophy of the bladder, small trabeculae and pseudodiverticulum; in the later stage, bladder compensation is incomplete, residual urine increases, urinary retention, overflow incontinence, and even vesicoureteral reflux, and renal function is impaired. Urethral stricture is prone to complications of urinary tract infection and stones, so urethral stricture must be treated.
[0003] In clinical practice, traditional metal bougie urethral dilators are easily damaged due to insufficient lubrication, and there are no openings on the side, so urine cannot be drained, which affects operation. Currently, after the urethral dilator enters the narrow part of the urethra, it is not suitable to push the dilation tube and dilate it. Therefore, a drainage and dilation urethra device is proposed. Utility Model Content
[0004] The purpose of the utility model is to provide a drainage and urethra dilation device to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drainage and urethral dilation device, comprising a dilation tube body, the end of the dilation tube body is a cone, the outer wall of the dilation tube body is provided with a smooth layer, a urination hole is provided on the end of the dilation tube body corresponding to the cone, and an expansion component is installed on the outer wall of the dilation tube body;
[0006] Preferably, the expansion assembly includes an outer wall of the expansion tube body that is recessed inward to form an annular groove, in which an annular airbag is installed for expanding the urethra to gradually increase its outer diameter to 28Fr, and the annular airbag is located at the rear side of the urination hole.
[0007] Preferably, the length of the annular airbag is 2 cm.
[0008] Preferably, the urination hole is located 1 cm from the end of the corresponding cone surface on the expansion tube body.
[0009] Preferably, the front end of the expansion tube body is a soft tube, and the rear end is a hard tube.
[0010] Preferably, the dilation tube body is an 18Fr urinary catheter dilation tube.
[0011] Compared with the prior art, the utility model has the following beneficial effects: a drainage and urethral dilation device, through the expansion tube body, the smooth layer on the surface of which can be smoother after contacting water, which is convenient for the entry of the expansion tube body, and the end thereof adopts a conical surface design to make it easier to enter, and a urination hole is added on the expansion tube body to facilitate the drainage of urine. In order to avoid the difficulty of catheterization and expansion after the end of the expansion tube body enters the narrow part of the urethra, an annular airbag is placed in the narrow part of the urethra, and the annular airbag is expanded by inflating or injecting liquid into the annular airbag to expand the urethra, so as to facilitate gradual expansion. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 It is a schematic diagram of the smooth layer structure of the utility model.
[0014] In the figure: 1- expansion tube body, 2- urination hole, 3- annular air bag, 4- cone surface, 5- smooth layer. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] See also Figure 1-2 The utility model provides a technical solution: a drainage and urethral dilation device, comprising an expansion tube body 1, the end of the expansion tube body 1 is a cone 4, the outer wall of the expansion tube body 1 is provided with a smooth layer 5, the end of the expansion tube body 1 corresponding to the cone is provided with a urination hole 2, and the outer wall of the expansion tube body 1 is installed with an expansion component;
[0017] The expansion assembly includes an expansion tube body 1 whose outer wall is recessed inward to form an annular groove, and an annular airbag 3 is installed in the annular groove to expand the urethra so that its outer diameter gradually reaches 28Fr. The annular airbag 3 is located at the rear side of the urination hole 2.
[0018] The smooth layer 5 is made of hydrogel material. The surface of the expansion tube body 1 is bonded with the smooth layer 5. The material has a softer and smoother surface, which can significantly alleviate the patient's discomfort during the operation and is smoother when in contact with water.
[0019] Specifically, the length of the annular airbag 3 is 2 cm.
[0020] A catheter for injecting gas or liquid into the annular airbag 3 is installed inside the expansion tube body 1. The catheter passes through the end of the expansion tube body 1 and extends to the outside. A connector is installed at the end of the catheter, and a sealing plug is installed inside the connector. Gas or liquid is injected into the interior through an external syringe to expand the annular airbag 3.
[0021] The annular airbag 3 is flush with the surface of the expansion tube body 1 when not inflated or filled with liquid.
[0022] Specifically, the urination hole 2 is located 1 cm from the end of the corresponding conical surface 4 on the expansion tube body 1 .
[0023] Specifically, the front end of the expansion tube body 1 is a soft tube, and the end is a hard tube. The soft tube is the end that enters the urethra, so that it can enter along the physiological curve of the human body, is easier to deform, and reduces patient discomfort. The hard tube at the end can facilitate medical staff to push the expansion tube body 1 into the urethra.
[0024] Specifically, the dilation tube body 1 is an 18Fr urinary catheter dilation tube.
[0025] The expansion tube body 1 is one of the expansion kits in the prior art. The expansion kit in the prior art is a set of 8-28Fr expansion kits, which increases by 2Fr at a time. When in use, the urethra is gradually expanded by the expansion tubes from small to large Fr.
[0026] Working principle: When the utility model is used, firstly, a soft guide wire is inserted through the urethra, and then the expansion tube body 1 from small to large is inserted through the guide wire for expansion. The smooth layer 53 can increase the smoothness of the expansion tube body 1, making it easier to enter the urethra. After the end of the expansion tube body 1 enters the narrow part of the urethra, the annular airbag 3 is expanded by injecting gas or liquid into the annular airbag 3 to expand the narrow ureter. Urine can be introduced into the expansion tube body 1 through the end of the expansion tube body 1 and the urination hole 2 to drain the urine.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A urethral drainage and dilation device, comprising a dilation tube body (1), characterized in that: The end of the expansion tube body (1) is in the form of a cone, the outer wall of the expansion tube body (1) is provided with a smooth layer (5), a urination hole (2) is provided at the end of the expansion tube body (1) corresponding to the cone, and an expansion assembly is installed on the outer wall of the expansion tube body (1); The expansion assembly comprises an expansion tube body (1) whose outer wall is recessed inwardly to form an annular groove, and an annular airbag (3) is installed in the annular groove to expand the urethra so that its outer diameter gradually reaches 28Fr. The annular airbag (3) is located at the rear side of the urination hole (2).
2. The urethral drainage and dilation device according to claim 1, characterized in that: The length of the annular airbag (3) is 2 cm.
3. The urethral drainage and dilation device according to claim 1, characterized in that: The urination hole (2) is located 1 cm from the end of the corresponding cone surface on the expansion tube body (1).
4. The urethral drainage and dilation device according to claim 1, characterized in that: The front end of the expansion tube body (1) is a soft tube, and the rear end is a hard tube.
5. The urethral drainage and dilation device according to claim 1, characterized in that: The dilation tube body (1) is an 18Fr urinary catheter dilation tube.