Catheter fixation traction device

Abstract

The present application relates to the field of medical device technology, and in particular to a catheter fixing traction device, comprising a base body with elastic deformation performance, a compression hole that penetrates front and back and has a diameter slightly smaller than that of the catheter is formed in the middle of the base body, and a placement port that penetrates front and back and extends inwardly into the compression hole is formed on the side of the base body; the base body also has a front end surface, which is a glans penis compression surface, and the glans penis compression surface is perpendicular to the compression hole. After prostatectomy, the catheter fixing device is used to press the catheter into the compression hole from the placement port, so that the glans penis compression surface is against the glans penis, so as to maintain the interaction force between the catheter and the glans penis by using the friction between the compression hole and the catheter, and play the role of pulling the catheter. It is not only easy to use, but also will not absorb urethral orifice bleeding and serve as a bacterial culture medium to cause urethral orifice infection, and it is not easy to form adhesion with the glans penis after mixing with blood, reducing the difficulty of disassembly and the discomfort of patients.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a urinary catheter fixing traction device. Background Art

[0002] Transurethral prostatectomy is the most standard and commonly used surgical method for treating prostate hyperplasia. After surgery, depending on the intraoperative hemostasis, compression hemostasis of the prostate wound is often performed for 12 to 24 hours or even longer. The commonly used method of compression hemostasis is to place a three-lumen catheter in the urethra, expand the balloon after water is injected, and pull the catheter to compress the prostate wound to achieve hemostasis.

[0003] At present, gauze is usually used to fix the catheter, that is, the gauze is tied to the catheter with a knot. This fixing method is prone to cause the following problems: 1. The surface of the gauze is rough and directly contacts the external urethral opening, which causes obvious discomfort to the patient. After the urethral opening absorbs blood, it adheres to the urethral opening and the discomfort is significantly aggravated, which may be accompanied by pain. 2. The urethral opening is absorbed on the gauze, which is difficult to keep dry and bacteria are easy to breed. 3. The gauze needs to be tied into a knot to play a traction role. It is difficult to untie the gauze, and the patient suffers during the release process. The other existing fixing methods require a large device with a complex structure, which is not conducive to widespread clinical development.

[0004] Therefore, another fixing method is proposed. Summary of the invention

[0005] In order to prevent the urethral bleeding from being easily absorbed and used as a bacterial culture medium to cause urethral infection during the process of fixing the traction catheter, and to prevent the blood from mixing with the blood and forming adhesions with the glans penis, thereby reducing the difficulty of disassembly and the patient's discomfort, the present application provides a catheter fixing traction device.

[0006] The present application provides a urinary catheter fixing traction device adopts the following technical solution: A catheter fixing traction device comprises a base body with elastic deformation performance, wherein a compression hole is formed in the middle of the base body and runs straight through the front and rear ends of the base body, and the compression hole is slightly smaller than the catheter; a placement opening is formed on the side of the base body and runs straight through the front and rear ends of the base body, and the placement opening extends inwardly into the compression hole, and is used for pressing the catheter from the placement opening into the compression hole; the base body has a front end surface, which is a glans penis compression surface, and the glans penis compression surface is perpendicular to the compression hole.

[0007] By adopting the above technical solution, after the prostatectomy, a three-chamber balloon catheter is placed through the urethra, saline is injected into the balloon to expand it, and the external part of the catheter is pulled by hand so that the balloon provides appropriate pressure to compress the prostate wound surface. Then, the catheter fixing device is used to press the catheter into the compression hole from the placement port, and the catheter fixing device is adjusted so that the glans penis compression surface is against the glans penis, so as to utilize the friction force between the compression hole and the catheter to maintain the interaction force between the catheter and the glans penis, thereby playing the role of pulling the catheter.

[0008] Optionally, the placement port is in the shape of a cone that narrows continuously from the outside to the inside, and the diameter of the placement port at the smallest position is slightly smaller than that of the urinary catheter.

[0009] By adopting the above technical solution and utilizing the conical design of the placement opening, it is convenient to gradually press the urinary catheter into the compression hole along the placement opening during use.

[0010] Optionally, two inner side surfaces of the placement opening are placement slopes, and the angle between the two placement slopes is 25°-35°.

[0011] Optionally, the edge of the placement opening has rounded corners.

[0012] By adopting the above technical solution, the placement port is de-edged and sharpened, so that the catheter is not easily scratched during the process of pressing the catheter from the placement port into the compression hole, thereby achieving protective installation of the catheter.

[0013] Optionally, the inner wall of the compression hole is provided with diamond-shaped anti-slip patterns.

[0014] By adopting the above technical solution, the diamond-shaped anti-slip pattern is used to increase the friction with the catheter and improve the fixing effect.

[0015] Optionally, the side surface of the base is an annular surface, and the side surface of the base and the front end surface are rounded to form a protective rounded surface.

[0016] By adopting the above technical solution, this surface is rounded to make the device without obvious edges and corners, and the contact area between the glans penis and the device is increased without significantly increasing the diameter of the device, thereby reducing pressure, alleviating discomfort, and reducing the side effects of compression.

[0017] Optionally, the base is integrally formed.

[0018] By adopting the above technical solution, the one-piece formed base has a simple structure, no connection structure, low production difficulty, low production energy consumption, saved steps, low cost, and can be used once.

[0019] Optionally, the substrate is made of silicone rubber, the same material as the catheter, or PETG or PLA that can be used for 3D printing.

[0020] By adopting the above technical solution, the catheter is made of silicone rubber, which is the same material as the catheter, or PETG or PLA that can be used for 3D printing. It is biocompatible and will not cause allergies or compressive pain.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. First, it is easy to use. Medical staff can install and remove it in a few seconds. Even patients can install and remove it according to the instructions, which is conducive to nurses to regularly clean the urethral opening. Second, this device will not absorb urethral bleeding. The blood can be fully drained to other parts such as underwear. It is not easy for residual blood to accumulate locally in the urethral opening as a bacterial culture medium to cause urethral infection. Antibacterial ointment can be applied to the side that contacts the glans penis to further reduce infection. Third, this device is not easy to mix with blood and form adhesions with the glans penis, which reduces the difficulty of disassembly and the discomfort of patients. 2. Use diamond-shaped anti-slip patterns to increase the friction with the catheter and improve the fixation effect; 3. This surface is rounded to make the device have no obvious edges and corners, increase the contact area between the glans penis and the device without significantly increasing the diameter of the device, reduce pressure, relieve discomfort, and reduce the side effects of compression; 4. It is small in size and can be sterile packaged together with the catheter before shipment. It can be used once, which is conducive to market promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a urinary catheter fixing traction device of the present application.

[0023] Figure 2 It is a top view of a urinary catheter fixing traction device of the present application.

[0024] Figure 3 It is a structural schematic diagram of a urinary catheter fixing traction device in the present application in a working state.

[0025] Description of reference numerals: 1. Base; 2. Compression hole; 3. Placement port; 4. Compression surface of glans penis; 5. Protective rounded surface; 6. Placement slope; 7. Diamond-shaped anti-slip pattern; 100. Prostate wound surface; 101. Balloon; 102. Urethra; 103. Glans penis; 104. Catheter. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-3 This application is described in further detail.

[0027] The embodiment of the present application discloses a urinary catheter fixing traction device.

[0028] Reference Figure 1 and Figure 2 A catheter fixing traction device includes a base body 1 with elastic deformation performance, a compression hole 2 is formed in the middle of the base body 1 and runs straight through the front and rear ends of the base body 1, and the size of the compression hole 2 can be designed according to different types of catheters 104, and the compression hole 2 is slightly smaller than the catheter 104. A placement opening 3 is formed on the side of the base body 1 and runs straight through the front and rear ends of the base body 1, and the placement opening 3 extends inwardly into the compression hole 2, and is used for the catheter 104 to be pressed into the compression hole 2 from the placement opening 3. The base body 1 also has a front end surface, which is a glans penis compression surface 4, and the glans penis compression surface 4 is perpendicular to the compression hole 2.

[0029] Reference Figure 3 After the prostatectomy, a three-chamber balloon catheter is inserted from the urethra 102, saline is injected into the balloon 101 to expand it, and the external part of the catheter 104 is pulled by hand so that the balloon 101 provides appropriate pressure to press the prostate wound surface 100. Then, the catheter fixing device is used to press the catheter 104 into the compression hole 2 from the placement port 3, and the catheter fixing device is adjusted so that the glans penis compression surface 4 is against the glans penis 103, so as to use the friction between the compression hole 2 and the catheter 104 to maintain the interaction force between the catheter 104 and the glans penis 103, so as to play the role of pulling the catheter 104.

[0030] Reference Figure 1 In this embodiment, the substrate 1 is in the shape of an oblate cylinder, and the side surface and the front end surface of the substrate 1 are rounded to form a protective rounded surface 5, the rounded treatment extends to the rear end surface, and the rear end surface is chamfered to transitionally connect to the protective rounded surface 5, so that after the rounded treatment, the substrate 1 forms a front end surface with a small end surface, a rear end surface with a large end surface, and a ring-shaped protective rounded surface 5.

[0031] On the one hand, the protective rounded corner surface 5 formed by the rounded corner treatment makes the device without obvious edges and corners, increases the contact area between the glans penis 103 and the device without significantly increasing the diameter of the device, reduces pressure, relieves discomfort, and reduces the side effects of compression. On the other hand, the rear end surface is also rounded to remove the edges and corners to reduce scratches and damage during subsequent operations.

[0032] In other embodiments, the base body 1 may be a truncated cone structure with a smaller taper, which will not be described in detail here.

[0033] Reference Figure 1Specifically, in this embodiment, the base 1 is made of silicone rubber, which is the same material as the catheter 104, or PETG or PLA that can be used for 3D printing, and is molded by an integrated molding method. The compression hole 2 in the base 1 is designed to be 4.0 to 5.8 mm, the outer diameter is designed to be 20 mm, and the thickness is designed to be 15 mm. Preferably, the base 1 is molded with silicone rubber, which is the same material as the catheter 104.

[0034] On the one hand, the same material as the urinary catheter 104, silicone rubber or PETG or PLA for 3D printing, is used, which is biocompatible and will not cause allergies or compression pain. On the other hand, the integrally formed base 1 has a simple structure, no connection structure, low production difficulty, low production energy consumption, saved process, low cost, and can be used once.

[0035] Reference Figure 1 Specifically, in this embodiment, the placement opening 3 is in a tapered shape that is continuously narrowed from the outside to the inside, and the diameter of the placement opening 3 at the minimum position is slightly smaller than the catheter 104, and the edge of the placement opening 3 is rounded. Among them, the two inner sides of the placement opening 3 are placement slopes 6, and the angle between the two placement slopes 6 is 25°-35°. Preferably, the angle between the placement slopes 6 is 30° On the one hand, the conical design of the placement opening 3 facilitates the gradual pressing of the urinary catheter 104 into the compression hole 2 along the placement opening 3 during use. On the other hand, the placement opening 3 is rounded to remove sharp edges, so that the urinary catheter 104 is not easily scratched during the process of pressing the urinary catheter 104 from the placement opening 3 into the compression hole 2, thereby achieving protective installation of the urinary catheter 104.

[0036] In this embodiment, the inner wall of the compression hole 2 is a diamond-shaped anti-skid pattern 7, so as to utilize the diamond-shaped anti-skid pattern 7 to increase the friction with the urinary catheter 104 and increase the fixing effect. In other implementations, the inner wall of the compression hole 2 can be other types of anti-skid pattern structures, such as a convex anti-skid pattern structure.

[0037] The implementation principle is as follows: after the prostatectomy, a three-chamber balloon catheter is inserted from the urethra 102, saline is injected into the balloon 101 to expand it, and the external part of the catheter 104 is pulled by hand so that the balloon 101 provides appropriate pressure to press on the prostate wound surface 100. Then, the catheter fixing device is used to press the catheter 104 into the compression hole 2 from the placement port 3, and the catheter fixing device is adjusted so that the glans penis compression surface 4 is against the glans penis 103, so that the friction between the compression hole 2 and the catheter 104 is used to maintain the interaction force between the catheter 104 and the glans penis 103, so as to play the role of pulling the catheter 104.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A urinary catheter fixing traction device, characterized in that: The invention comprises a base body (1) having elastic deformation performance, wherein a compression hole (2) is formed in the middle of the base body (1) and runs straight through the front and rear ends of the base body (1), and the diameter of the compression hole (2) is slightly smaller than that of the urinary catheter (104); a placement opening (3) is formed on the side of the base body (1) and runs straight through the front and rear ends of the base body (1), and the placement opening (3) extends inwardly into the compression hole (2) and is used for the urinary catheter (104) to be pressed into the compression hole (2) from the placement opening (3); the base body (1) has a front end surface, and the front end surface is a glans penis compression surface (4), and the glans penis compression surface (4) is perpendicular to the compression hole (2).

2. A urinary catheter fixing traction device according to claim 1, characterized in that: The placement opening (3) is in the shape of a cone that narrows continuously from the outside to the inside, and the diameter of the placement opening (3) at the smallest position is slightly smaller than that of the urinary catheter (104).

3. A urinary catheter fixing traction device according to claim 2, characterized in that: The two inner side surfaces of the placement opening (3) are placement inclined surfaces (6), and the angle between the two placement inclined surfaces (6) is 25°-35°.

4. A urinary catheter fixing traction device according to claim 1, characterized in that: The edge of the placement opening (3) is rounded.

5. The catheter fixing traction device according to claim 1, characterized in that: The inner wall of the compression hole (2) is provided with diamond-shaped anti-slip patterns (7).

6. The catheter fixing traction device according to claim 1, characterized in that: The side surface of the base body (1) is an annular surface, and the side surface of the base body (1) and the front end surface are rounded to form a protective rounded surface (5).

7. The catheter fixing and pulling device according to claim 1, characterized in that: The base body (1) is integrally formed.

8. A urinary catheter fixing and pulling device according to claim 7, characterized in that: The base body (1) is made of the same material as the urinary catheter (104), namely silicone rubber or PETG or PLA that can be used for 3D printing.

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