Urethral catheter for urinary surgery
By incorporating anti-dislodgement straps, medical adhesive tape, an airbag, and a drainage solenoid valve into the urinary catheter, the problems of catheter dislodgement and leakage during urine bag replacement are solved. This achieves stable catheter fixation and automatic urine storage, improving the overall effectiveness of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2026-03-31
AI Technical Summary
Existing urological catheters are prone to dislodgement during patient activity, and leakage can easily occur when changing the urine collection bag during urine storage, affecting urination stability and effectiveness.
A urinary catheter with an anti-dislodgement strap, medical adhesive tape, air bladder, silicone plug, and rubber sliding sleeve was designed. Combined with a drainage solenoid valve and a liquid level sensor, it can fix the catheter and automatically replace the urine reservoir, reduce the probability of dislodgement, and prevent urine leakage.
It improves the stability of the urinary catheter, ensuring it does not dislodge during patient activity, and automatically detects and replaces the urine collection vessel to prevent urine leakage, thus enhancing the safety and convenience of use.
Smart Images

Figure CN224056361U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of urinary catheter technology, specifically a urinary catheter for urological surgery. Background Technology
[0002] The Department of Urology mainly treats various urinary stones, complex kidney stones, kidney and bladder tumors, etc. When treating patients with urinary retention, urethral injury and other urination disorders, they may be unable to urinate normally due to urethral deformation, and a catheter needs to be inserted into the patient's urethra to help the patient urinate.
[0003] Chinese patent provides a urinary catheterization device for urological surgery, publication number CN220404617U, which includes a catheter, one end of which is fixedly connected to a three-lumen tube, and a fixing mechanism for fixing the catheter to the patient's leg is provided at one end of the three-lumen tube. The fixing mechanism includes a fixing strap provided at one end of the catheter near the three-lumen tube.
[0004] The above-mentioned device uses a fixing mechanism to fix the urinary catheter to the patient's leg. The fixing strap is put on the patient's leg, and the fixing strap is tightened by the tape component according to the patient's comfort. Then the urinary catheter is tightened to the positioning seat of the fixing strap by the tensioning component. This helps to make the urinary catheter more stable when fixed, and will not squeeze the urinary catheter and affect the patient's urination.
[0005] However, since the urinary catheter is fixed to the patient's leg, it is easily pulled during the patient's leg movements, which may cause the catheter to fall out and affect the patient's urination. In addition, the urinary catheter needs to be used in conjunction with a urine collection pot or urine collection bag. When the urine collection bag is full, it needs to be replaced in time. During the replacement process, urine may leak out of the tube. Summary of the Invention
[0006] The purpose of this invention is to provide a urinary catheter for urological surgery, which can effectively solve the problems in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A urological catheter includes a catheter body, an insertion tube connected to the top of the catheter body, an air balloon disposed on the upper part of the outer ring of the insertion tube, and a silicone plug connected to the top of the insertion tube.
[0009] The outer ring of the catheter body is provided with an anti-dislodgement strap near the insertion point. Medical adhesive tape is provided on both sides of the top surface of the anti-dislodgement strap. A protective film is attached to the top of the medical adhesive tape. The outer ring of the insertion tube and the silicone plug are provided with several catheter holes. Several rubber sleeves are movably installed on the outer ring of the catheter body. A fixing clip is connected to the lower part of the outer ring of the rubber sleeves by a soft band. The bottom end of the catheter body is connected to three diversion tubes through a drainage tube. The front end of one of the diversion tubes is connected to an air supply tube. The inside of the insertion tube is provided with an inflation port that is compatible with the balloon.
[0010] Preferably, of the three diversion pipes, the bottom ends of the two diversion pipes that are not connected to the gas supply pipe are connected to a drain solenoid valve, and the bottom ends of the two drain solenoid valves are connected to a urine storage tank through a connecting pipe, and the bottom end of the urine storage tank is provided with an anti-slip base.
[0011] Preferably, the urine reservoir and the anti-slip base are detachably connected, and the urine reservoir and the connecting pipe are interference fit.
[0012] Preferably, the urine storage container is transparent, and a liquid level sensor is attached to the upper part of the outer rim of the urine storage container.
[0013] Preferably, the silicone plug is bullet-shaped, the airbag is conical, and an elastic ring is provided around the outer ring of the insertion tube and at the top of the anti-detachment band.
[0014] Preferably, the catheter body is made of a flexible tube, and the inner ring of the rubber sleeve is provided with anti-slip texture.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention, by incorporating an anti-detachment strap, medical adhesive tape, and an airbag in conjunction with a silicone plug, can fix the catheter during catheterization, reducing the probability of it detaching from the patient's body and improving catheterization stability. Furthermore, the rubber sliding sleeve and fixing clip, along with the catheter body, can fix the catheter body to a suitable position on the bed sheet or hospital bed, reducing the probability of the catheter body falling off during personnel movement. Moreover, since the catheter body is not fixed to the human body, it prevents compression that could affect catheterization.
[0017] By incorporating a drain solenoid valve, a urine storage container, and a liquid level sensor in conjunction with the catheter body, the liquid level sensor detects the liquid level during catheterization, and the drain solenoid valve switches the urine into different urine storage containers for automatic replacement. The drain solenoid valve can also cut off the diversion tube to prevent urine leakage when changing urine storage containers, thus improving the effectiveness of the catheter. Attached Figure Description
[0018] Figure 1This is a schematic diagram of the overall structure of a urological catheter according to an embodiment of the present invention;
[0019] Figure 2 As an embodiment of this utility model Figure 1 Enlarged view of area A;
[0020] Figure 3 This is a schematic diagram of the structure of the urine storage vessel and the liquid level sensor in an embodiment of this utility model.
[0021] In the diagram: 1. Catheter body; 2. Insertion tube; 3. Balloon; 4. Silicone plug; 5. Catheter port; 6. Anti-dislodgement strap; 7. Medical adhesive tape; 8. Rubber sliding sleeve; 9. Fixation clip; 10. Drainage tube; 11. Diverter tube; 12. Drainage solenoid valve; 13. Urine reservoir; 14. Liquid level sensor; 15. Anti-slip base; 16. Gas delivery tube. Detailed Implementation
[0022] 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.
[0023] Example 1
[0024] Combination Figures 1-3 A urological catheter includes a catheter body 1, a cannula 2 connected to the top of the catheter body 1, an air balloon 3 disposed on the upper part of the outer ring of the cannula 2, and a silicone plug 4 connected to the top of the cannula 2.
[0025] See Figure 2 Furthermore, it is found that the outer ring of the catheter body 1 is provided with an anti-dislodgement band 6 near the insertion tube 2. Medical adhesive tape 7 is provided on both sides of the top surface of the anti-dislodgement band 6. A protective film is attached to the top of the medical adhesive tape 7. The outer ring of the insertion tube 2 and the silicone plug 4 are provided with several catheter holes 5. Several rubber sleeves 8 are movably installed on the outer ring of the catheter body 1. The lower part of the outer ring of the rubber sleeve 8 is connected to a fixing clip 9 by a soft band. The bottom end of the catheter body 1 is connected to three diversion tubes 11 through the drainage tube 10. The front end of one of the diversion tubes 11 is connected to an air supply tube 16. The inside of the insertion tube 2 is provided with an inflation hole that is compatible with the balloon 3. The silicone plug 4 is bullet-shaped, and the balloon 3 is conical. An elastic ring is provided around the outer ring of the insertion tube 2 and at the top of the anti-dislodgement band 6. The catheter body 1 is made of soft tubing. The inner ring of the rubber sleeve 8 is provided with anti-slip texture.
[0026] Specifically, using tweezers or other tools, the silicone plug 4 and the catheter port 5 can be directly inserted into the patient's urethra. After the catheter 2 is inserted into the patient's bladder, the balloon 3 can be inflated through the air inlet tube 16 to make it fit against the urethral wall and bladder neck. If necessary, the protective film of the medical adhesive tape 7 can be torn off, and then the anti-dislodgement tape 6 can be attached to the patient's inner thigh to limit the backward movement of the catheter 2, thereby further reducing the probability of the catheter 2 falling off. After the catheter 2 is fixed, the rubber sleeve 8 can be slid to a suitable position on the outer ring of the catheter body 1 as needed, and the catheter body 1 can be fixed to a suitable position on the bed sheet or hospital bed with the fixing clip 9 to ensure that the catheter body 1 will not bend with the patient's movement, and is not directly fixed to the patient's leg to avoid the patient's leg movement affecting the catheterization of the catheter body 1.
[0027] Example 2
[0028] See Figure 3 Furthermore, based on Embodiment 1, it is further found that, among the three diversion pipes 11, the bottom ends of the two diversion pipes 11 that are not connected to the gas supply pipe 16 are connected to the drain solenoid valves 12, and the bottom ends of the two drain solenoid valves 12 are connected to the urine storage tank 13 through the connecting pipe. The bottom end of the urine storage tank 13 is provided with an anti-slip base 15, the urine storage tank 13 and the anti-slip base 15 are detachably connected, the urine storage tank 13 and the connecting pipe are interference fit, the urine storage tank 13 is transparent, and a liquid level sensor 14 is attached to the upper position of the outer ring of the urine storage tank 13.
[0029] Specifically, by opening one of the drainage solenoid valves 12 and closing the other, the urine flowing from the catheter body 1 can be drained into one of the urine storage tanks 13. While the urine storage tank 13 is continuously collecting urine, the liquid level sensor 14 can detect the liquid level in the urine storage tank 13. After the liquid level sensor 14 detects urine, it will open the other drainage solenoid valve 12 and close one of the drainage solenoid valves 12 to guide the urine into the other urine storage tank 13 for automatic replacement. Since the drainage solenoid valve 12 plays the role of opening and closing the diversion pipe 11, and the drainage solenoid valve 12 is interference-fitted to the urine storage tank 13 through the connecting pipe, it can be removed and the urine poured out when one of the urine storage tanks 13 is full to prevent urine leakage during replacement. This process is repeated to circulate and store urine. The liquid level sensor 14 is model XKC-Y25-PNP.
[0030] In actual operation, professional medical staff can use tweezers or other tools to directly insert the silicone plug 4 and the catheter port 5 into the patient's urethra. After the catheter 2 is inserted into the patient's bladder, the balloon 3 can be inflated through the air inlet tube 16 to make it fit the urethral wall and bladder neck. Then, the protective film of the medical adhesive tape 7 can be torn off as needed, and the anti-dislodgement tape 6 can be attached to the patient's inner thigh to limit the backward movement of the catheter 2, thereby further reducing the probability of the catheter 2 falling off. At the same time, when in use, the urine collection pot 13 can be placed on the anti-slip base 15 and the anti-slip base 15 can be placed in a suitable position on the ground to collect the urine from the drainage point.
[0031] After fixing the catheter at point 2, the rubber sleeve 8 can be slid to a suitable position on the outer ring of the catheter body 1 as needed, and the catheter body 1 can be fixed to a suitable position on the bed sheet or hospital bed by the fixing clip 9 to ensure that the catheter body 1 will not bend with the patient's movement. At the same time, it is not directly fixed to the patient's leg to avoid the patient's leg movement affecting the catheter body 1. When the patient needs to get out of bed, the fixing clip 9 can be fixed to the patient's clothing. When the patient moves, it is necessary to ensure that the discharge solenoid valve 12 will not disconnect from the urine reservoir 13 to prevent urine from leaking out at will. At the same time, glue can be used to fix the external hook to the urine reservoir 13. The urine reservoir 13 can be hung in a suitable position later.
[0032] Furthermore, when storing urine, by opening one of the drainage solenoid valves 12 and closing the other drainage solenoid valve 12, the urine flowing out of the catheter body 1 can be discharged into one of the urine storage tanks 13. When the urine storage tank 13 is continuously collecting urine, the liquid level sensor 14 can detect the liquid level in the urine storage tank 13. After the urine is detected by the liquid level sensor 14, the other drainage solenoid valve 12 will be opened and the other drainage solenoid valve 12 will be closed, so that the urine is introduced into the other urine storage tank 13 for automatic replacement.
[0033] Meanwhile, since the drain solenoid valve 12 serves to turn the diversion pipe 11 on and off, and the drain solenoid valve 12 is connected to the urine storage tank 13 via the connecting pipe, when one of the urine storage tanks 13 is full, it can be removed to pour out the urine. During the pouring process, it can be ensured that one urine storage tank 13 collects the urine, thereby preventing urine leakage due to long replacement time. This process is then repeated to circulate and store the urine.
[0034] Furthermore, the control components and modules used for the on / off state of the aforementioned discharge solenoid valve 12 and the detection of the liquid level by the liquid level sensor 14 are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve improvements to the software and power supply.
[0035] 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 the 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 urinary catheter for urological surgery, comprising a catheter body (1), a cannula (2) being connected to a top end of the catheter body (1), characterized in that: The outer ring of the cannula (2) is provided with an air bag (3) near the upper position, and the top end of the cannula (2) is connected with a silica gel plug (4); The outer ring of the catheter body (1) is provided with a anti-off belt (6) near the cannula (2), the top surface of the anti-off belt (6) is provided with a medical adhesive tape (7) near both sides, the top end of the medical adhesive tape (7) is adhered with a protective film, the outer ring of the cannula (2) and the silica gel plug (4) is provided with a plurality of catheter holes (5), the outer ring of the catheter body (1) is movably installed with a plurality of rubber sliding sleeves (8), the outer ring of the rubber sliding sleeve (8) is connected with a fixing clamp (9) through a soft belt near the lower position, the bottom end of the catheter body (1) is connected with three shunt tubes (11) through a drainage tube (10), the front end of one of the shunt tubes (11) is connected with a gas delivery tube (16), the inside of the cannula (2) is provided with an inflation hole which is adaptively matched with the air bag (3).
2. The urinary catheter according to claim 1, wherein: Among the three shunt tubes (11), the bottom end of the two shunt tubes (11) which are not connected with the gas delivery tube (16) is connected with a liquid discharge electromagnetic valve (12), the bottom end of the two liquid discharge electromagnetic valves (12) is connected with a urine storage pot (13) through a connecting pipe, the bottom end of the urine storage pot (13) is provided with an anti-skid base (15).
3. A urinary catheter according to claim 2, characterized in that: The urine storage pot (13) and the anti-skid base (15) are detachably connected, and the urine storage pot (13) and the connecting pipe are interference fit.
4. The urinary catheter according to claim 2, wherein: The urine storage pot (13) is transparent, and the outer ring of the urine storage pot (13) is pasted with a liquid level sensor (14) near the upper position.
5. The urinary catheter according to claim 1, wherein: The silica gel plug (4) is bullet-shaped, the air bag (3) is conical, and an elastic ring is arranged around the outer ring of the cannula (2) and located at the top end of the anti-off belt (6).
6. The urinary catheter according to claim 1, wherein: The catheter body (1) is a soft tube, and the inner ring of the rubber sliding sleeve (8) is provided with anti-skid lines.