A urinary catheter intelligent control opening and closing system

Abstract

The present invention belongs to the technical field of urinary catheters; specifically, it is a urinary catheter intelligent control opening and closing system, which includes a urinary catheter, an air inlet tube and a urination main body. The invention improves the existing urinary catheter and optimizes the setting of the urination main part. When the pressure sensor detects a pressure greater than 60cm of water column, it opens and when it is less than 20cm of water column, it closes to achieve the function of automatic opening and closing. Then, the servo motor drives the worm and worm gear to rotate so that the disc-shaped baffle cooperates with the arc-shaped sealing strips on both sides, controlling the automatic opening and closing of the channel in the catheter, maintaining the bladder capacity and restoring the bladder's contraction function, thereby ensuring the patient's health. At the same time, a through hole close to the urination end and inclined toward the urination end is arranged in the catheter. The through hole is closed and opened by a shielding component. After closing, urine is prevented from flowing out. After opening, flushing liquid is introduced to comprehensively and effectively clean the inside of the catheter, avoiding residual urine and breeding bacteria, further improving the safety of use.

Description

Technical Field

[0001] The present invention relates to the field of urinary catheters, and in particular to an intelligent control opening and closing system for urinary catheters. Background Art

[0002] Patients undergoing urinary system surgery, those with urinary retention, and those with neurogenic bladder require long-term indwelling catheterization. The catheter is always open, which can easily lead to bladder dysfunction or even bladder contracture, which is not conducive to the recovery of bladder function. Failure to open the clamped catheter in time, coupled with decreased bladder sensation in some patients, can easily lead to overfilling of the bladder and damage to bladder and kidney function. Intermittent opening of the catheter is beneficial for maintaining bladder capacity and restoring bladder contraction function, and has been recommended by the International Continence Society as the preferred method for treating neurogenic bladder dysfunction. Intermittent opening of the catheter is achieved by utilizing the catheter's intelligent control opening and closing system.

[0003] The structure of the existing intelligent control opening and closing system for urinary catheters is relatively simple. During use, it is inconvenient to intelligently sense the pressure in the bladder to realize automatic opening of the urinary catheter, which affects the health of the patient. At the same time, the cleaning effect inside the pipeline is poor, and it is easy for residual urine to breed bacteria, affecting the safety of use. Summary of the Invention

[0004] Therefore, in order to solve the above-mentioned deficiencies, the present invention provides a urinary catheter intelligent control opening and closing system.

[0005] The present invention is achieved by constructing an intelligent control opening and closing system for a urinary catheter, which includes a urinary catheter, a urinary catheter port, an air bag, a urination main component and an air inlet tube. The urinary catheter is provided with a urinary catheter port at one end, and an air bag is provided at the end of the urinary catheter near the urinary catheter port. The air inlet tube is provided on the other side of the outer surface of the urinary catheter. The inner side of the drainage tube at one end of the urinary catheter is connected to the urination main component that can improve the safety of patient use. The urination main component includes a catheter connected to the inner side of the drainage tube for conducting urine, a first opening and closing structure and a second opening and closing structure respectively provided at the tail ends of one side and the other side of the catheter and performing slow adjustment control and automatically opening and closing according to the pressure in the bladder, and a flushing structure fixed to one end of the catheter and close to the first opening and closing structure for improving cleaning efficiency and preventing bacterial growth.

[0006] Preferably, the first opening and closing structure and the second opening and closing structure have the same size.

[0007] Preferably, the first opening and closing structure includes a sleeve embedded in the inner side of the conduit and integrally formed with it, a protective cover fixedly connected to the outside of the sleeve, a servo motor installed on the top side of the inner side of the protective cover, a worm connected to the left output end of the servo motor at one end, a worm wheel engaged with the front side of the worm, a rotating shaft rod fixed to the middle side of the inner side of the worm wheel, a transmission structure connected to the bottom end of the rotating shaft rod, and a switch structure connected to one side of the inner side of the transmission structure, the other end of the worm is rotatably connected to the protective cover, the top end of the rotating shaft rod is rotatably connected to the protective cover, the bottom side of the transmission structure is in contact with the protective cover, and the top end of the switch structure passes through one side of the sleeve.

[0008] Preferably, the transmission structure includes a disc whose middle part is connected to the rotating shaft rod, a rotating block fixed to the middle part of the bottom side of the disc, a sliding frame wrapped around the outside of the rotating block and in contact with it, a positioning frame slidably connected to one side of the sliding frame, a rack integrally formed on the other side of the sliding frame, and a gear engaged with the other side of the rack, the bottom side of the positioning frame is in contact with the protective cover, and the middle side of the gear is rotatably connected to the protective cover.

[0009] Preferably, the switch structure includes a vertical pole connected to the middle of the gear, a sealing sleeve wrapped around the outside of the vertical pole, a baffle with the bottom end fixed to the vertical pole, and a first arc-shaped sealing strip and a second arc-shaped sealing strip respectively in contact with the rear and front sides of the baffle.

[0010] Preferably, the first arc-shaped sealing strip and the second arc-shaped sealing strip have the same structure and size, and are located in the middle of the vertical pole and are symmetrically arranged in reverse.

[0011] Preferably, the first arc-shaped sealing strip and the second arc-shaped sealing strip are both arc-shaped structures, and their lengths are greater than half of the circumference of the inner wall of the sleeve.

[0012] Preferably, the flushing structure includes a cylinder embedded in the inner side of the catheter, an outer cover fixed to one side of the cylinder, a drive motor connected to the inside of the outer cover, a small gear connected to the output end of the drive motor in the middle, an outer gear ring whose outer surface meshes with the small gear, and a shielding assembly connected to one side of the outer gear ring, the middle part of the other side of the small gear is rotatably connected to the outer cover, and the outer gear ring is rotatably connected to the inner wall of the cylinder.

[0013] Preferably, the shielding assembly includes a sleeve fixed to the cylinder on one side, a cavity arranged inside the sleeve, a through opening opened on the inner side of the cavity, a baffle in contact with the inner side of the through opening, a ring seat fixed to the other side of the baffle, a hose arranged on one side of the cavity and passing through the outer cover, and the other side of the ring seat is fixed to the outer gear ring.

[0014] Preferably, the openings are distributed in an array and are tilted toward the urination end, and when the blocking bar is rotated to correspond to the position of the opening, it fits tightly.

[0015] Preferably, a controller and a pressure sensor are provided in the catheter, and the controller is connected to the servo motor and the drive motor. The catheter opens when the pressure sensor detects a pressure greater than 60 cm water column and closes when the pressure is less than 20 cm water column, thereby realizing automatic opening and closing.

[0016] Preferably, the first arc-shaped sealing strip and the second arc-shaped sealing strip are both made of silicone material.

[0017] Preferably, the material used for the baffle is aluminum alloy.

[0018] The present invention has the following advantages: The present invention provides an intelligent control opening and closing system for urinary catheters through improvement, which has the following improvements compared with similar devices:

[0019] Advantage 1: The intelligent control opening and closing system for a urinary catheter described in the present invention optimizes the setting of the urination main part, and sets an opening and closing structure in the catheter of the urination main part. It opens when the pressure sensor detects a pressure greater than 60 cm of water column, and closes when it is less than 20 cm of water column, thereby realizing the function of automatic opening and closing. Then, the servo motor drives the worm and the worm gear to rotate so that the disc-shaped baffle cooperates with the arc-shaped sealing strips on both sides, controlling the automatic opening and closing of the channel in the catheter, maintaining the bladder capacity and restoring the bladder's contraction function, thereby ensuring the health of the patient.

[0020] Advantage 2: The intelligent control opening and closing system of the urinary catheter described in the present invention further ensures the slow and stable discharge of urine through the coordinated control of the first opening and closing structure and the second opening and closing structure. During urination, the first opening and closing structure close to the urinary catheter port is preferentially activated to open a small port, and then the second opening and closing structure is opened to discharge urine, thereby avoiding the rapid spraying of urine and causing pain to the patient.

[0021] Advantage 3: The intelligent control opening and closing system for a urinary catheter described in the present invention has an optimized flushing structure on the urination main part, and an opening close to the urination end and inclined toward the urination end is arranged in the catheter, and the opening is closed by a shielding component to prevent urine from flowing out. At the same time, the opening can be opened under the action of the shielding component, and the introduction of flushing liquid can comprehensively and effectively clean the inside of the catheter, avoid residual urine and the breeding of bacteria, and further improve the safety of use.

[0022] Advantage 4: In the intelligent control opening and closing system for a urinary catheter described in the present invention, the first arc-shaped sealing strip and the second arc-shaped sealing strip have the same structure and size, and are located in the middle of the vertical pole and are symmetrically arranged in reverse. The first arc-shaped sealing strip and the second arc-shaped sealing strip are both arc-shaped structures, and their length is greater than half of the circumference of the inner wall of the sleeve, thereby increasing the sealing effect and preventing urine leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the present invention;

[0024] Figure 2 It is a structural diagram of the urination main component of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the first opening and closing structure of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the sleeve and the interior of the protective cover of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the baffle of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the transmission structure of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the flushing structure of the present invention;

[0030] Figure 8 It is a schematic structural diagram of the interior of the cylinder of the present invention.

[0031] Including: urinary catheter-1, urinary catheter port-2, air bag-3, urination main part-4, air inlet pipe-5, catheter-41, first opening and closing structure-42, second opening and closing structure-43, flushing structure-44, sleeve-421, protective cover-422, servo motor-423, worm-424, worm gear-425, shaft-426, transmission structure-427, switch structure-428, vertical rod-4281, sealing sleeve-4282, baffle-4283, first arc sealing strip-4 284, second arc-shaped sealing strip 4285, disc 4271, rotating block 4272, sliding frame 4273, positioning frame 4274, rack 4275, gear 4276, cylinder 441, outer cover 442, drive motor 443, pinion 444, outer gear ring 445, shielding assembly 446, sleeve 4461, cavity 4462, opening 4463, baffle 4464, ring seat 4465, hose 4466. DETAILED DESCRIPTION

[0032] The following will be combined with the Figure 1-8 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] See also Figure 1The urinary catheter intelligent control opening and closing system of the present invention comprises a urinary catheter 1, a urinary catheter port 2, an air bag 3, a urination main part 4 and an air inlet pipe 5. The urinary catheter 1 is provided with a urinary catheter port 2 at one end, and an air bag 3 is provided at the end of the urinary catheter 1 close to the urinary catheter port 2. An air inlet pipe 5 is provided on the other side of the outer surface of the urinary catheter 1. The inner side of the drainage tube at one end of the urinary catheter 1 is connected with the urination main part 4 which can improve the safety of the patient. The urinary catheter 1 is provided with a controller and a pressure sensor, and is connected to the urination main part 4 through the controller. When the pressure sensor detects a pressure greater than 60 cm water column, it opens and is closed when it is less than 20 cm water column. When the pressure sensor senses that the urine pressure is greater than 60 cm water column, the controller automatically drives the original parts inside the urination main part 4 to work, so that the internal channel is opened for urination. At the same time, the port can be opened under the action of the shielding component, and then the flushing liquid can be introduced to comprehensively and effectively clean the inside of the catheter to avoid residual urine and breeding bacteria, thereby further improving the safety of use.

[0034] See also Figure 2 The present invention relates to an intelligent control opening and closing system for a urinary catheter. The urination main component 4 includes a catheter 41 connected to the inside of the drainage tube for conducting urine, a first opening and closing structure 42 and a second opening and closing structure 43 respectively provided at one end and the other end of the catheter 41 for slow adjustment and control and automatic opening and closing according to the pressure in the bladder, and a flushing structure 44 fixed to one end of the catheter 41 and close to the first opening and closing structure 42 for improving cleaning efficiency and preventing bacterial growth. The flushing structure 44 provides more thorough flushing, further improving safety in use. The first opening and closing structure 42 and the second opening and closing structure 43 have the same size.

[0035] The first opening and closing structure 42 and the second opening and closing structure 43 are coordinated and controlled to realize automatic opening and closing of the urethra, and urine is discharged slowly and steadily. When urinating, the first opening and closing structure 42 near the end of the urinary catheter port 2 is activated first to open the small opening, and then the second opening and closing structure 43 is opened to discharge urine. The position near the end of the urinary catheter port 2 can be cleaned by the flushing structure 44 to ensure the cleaning effect, reduce the breeding of bacteria, and improve the safety of use.

[0036] See also Figure 3 、 Figure 4 、 Figure 5 and Figure 6The present invention relates to an intelligent control opening and closing system for a urinary catheter. The first opening and closing structure 42 includes a sleeve 421 embedded in the inner side of the catheter 41 and formed integrally with the sleeve to ensure the conduction of urine. A protective cover 422 is fixedly connected to the outer side of the sleeve 421 to provide support and protection on the outer side. A servo motor 423 is installed on the top side of the inner side of the protective cover 422 and is driven by the servo motor 423 as a power source. A worm 424, one end of which is connected to the left output end of the servo motor 423, is engaged with a worm wheel 425 on the front side of the worm 424, and a rotating shaft is fixed to the middle side of the inner side of the worm wheel 425. Rod 426 rotates the shaft rod 426 in cooperation with the worm 424 and the worm wheel 425. A transmission structure 427 is connected to the bottom end of the shaft rod 426, and a switch structure 428 is connected to one side of the transmission structure 427. The other end of the worm 424 is rotatably connected to the protective cover 422 to support the rotation. The top end of the shaft rod 426 is rotatably connected to the protective cover 422 to ensure the stable rotation of the shaft rod 426. The bottom side of the transmission structure 427 contacts the protective cover 422. The top end of the switch structure 428 passes through one side of the sleeve 421 to support and limit the position.

[0037] The servo motor 423 is used as a power source. The worm 424 and the worm wheel 425 cooperate to drive the rotating shaft 426 to drive the transmission structure 427. The transmission structure 427 drives the switch structure 428 to open or close the interior of the conduit 41.

[0038] The transmission structure 427 includes a disc 4271 connected to the rotating shaft rod 426 in the middle, and the disc 4271 is rotated by the rotation of the rotating shaft rod 426, a rotating block 4272 fixed to the middle part of the bottom side of the disc 4271, and a sliding frame 4273 wrapped around the outer side of the rotating block 4272 and in contact with it. Under the action of the rotating block 4272, the sliding frame 4273 moves back and forth, and a positioning frame 4274 slidably connected to one side of the sliding frame 4273 plays a role of limiting the movement of the sliding frame 4273 through the positioning frame 4274. A rack 4275 integrally formed on the other side of the sliding frame 4273 and a gear 4276 meshed with the other side of the rack 4275 are convenient for driving the gear 4276 to rotate. The bottom side of the positioning frame 4274 contacts the protective cover 422 to play a supporting role. The middle side of the gear 4276 is rotatably connected to the protective cover 422 to ensure the stable rotation of the gear 4276.

[0039] The switch structure 428 includes a vertical rod 4281 connected to the middle part of the gear 4276, so that the vertical rod 4281 is driven to rotate by the gear 4276. A sealing sleeve 4282 wrapped around the outside of the vertical rod 4281 improves the sealing performance of the structure. A baffle 4283 is fixed to the vertical rod 4281 at the bottom end, and a first arc-shaped sealing strip 4284 and a second arc-shaped sealing strip 4285 are respectively in contact with the rear and front sides of the baffle 4283. The first arc-shaped sealing strip 4284 and the second arc-shaped sealing strip 4285 are opened or closed by cooperating with the baffle 4283. The first arc-shaped sealing strip 4284 and the second arc-shaped sealing strip 4285 have the same structure and size and are located in the middle part of the vertical rod 4281 in an anti-symmetrical manner. The first arc-shaped sealing strip 4284 and the second arc-shaped sealing strip 4285 are both arc-shaped structures, and their length is greater than half of the circumference of the inner wall of the sleeve 421, thereby improving the sealing effect and preventing urine leakage.

[0040] Under the action of the rotating shaft rod 426, the disc 4271 drives the rotating block 4272 to rotate inside the sliding frame 4273, so that the sliding frame 4273 moves back and forth in the positioning frame 4274, and the rack 4275 on the other side of the sliding frame 4273 drives the gear 4276 to rotate. After the gear 4276 and the rack 4275 rotate through a stroke, the vertical rod 4281 rotates 90 degrees to open the internal channel to the maximum. After the gear 4276 and the rack 4275 rotate through a return stroke, the vertical rod 4281 rotates in the opposite direction 90 degrees to reset and close the internal channel. When the vertical rod 4281 rotates, it drives the baffle 4283 to rotate, and the inner channel is closed or opened through the cooperation between the baffle 4283 and the first arc-shaped sealing strip 4284 and the second arc-shaped sealing strip 4285.

[0041] See also Figure 7 and Figure 8 The present invention relates to an intelligent control opening and closing system for a urinary catheter. The flushing structure 44 includes a cylinder 441 embedded in the inner side of the urinary catheter 1, an outer cover 442 fixed to one side of the cylinder 441, a driving motor 443 connected to the inside of the outer cover 442, a pinion 444 connected to the output end of the driving motor 443 in the middle, and an outer gear ring 445 meshing with the pinion 444 on the outer surface. The driving motor 443 is used as a power source to drive the pinion 444 to drive the outer gear ring 445 to rotate. A shielding component 446 is connected to one side of the outer gear ring 445. The middle part of the other side of the pinion 444 is rotatably connected to the outer cover 442 to ensure the stable rotation of the pinion 444. The outer gear ring 445 is rotatably connected to the inner wall of the cylinder 441, and the cylinder 441 supports the rotation of the outer gear ring 445.

[0042] The shielding assembly 446 includes a sleeve 4461 fixed to the cylinder 441 on one side, a cavity 4462 provided inside the sleeve 4461, a through-port 4463 opened on the inner side of the cavity 4462, and a retaining bar 4464 in contact with the inner side of the through-port 4463. The retaining bar 4464 cooperates with the through-port 4463 to open or close the through-port 4463. A ring seat 4465 is fixed to the other side of the retaining bar 4464, and a hose 4466 is provided on one side of the cavity 4462 and passes through the outer cover 442. The cleaning liquid is discharged into the cavity through the hose 4466. The other side of the ring seat 4465 is fixed to the outer gear ring 445 so that the ring seat 4465 rotates under the rotation of the outer gear ring 445.

[0043] The driving motor 443 is used as the power source to make the small gear 444 drive the outer gear ring 445 to rotate, and the outer gear ring 445 drives the baffle 4464 to rotate to open the opening 4463. At this time, the hose can be connected to the external cleaning liquid end, and the cleaning liquid can be discharged into the cavity 4462 and then discharged from the opening. The openings 4463 are distributed in an array, and the openings 4463 are tilted toward the urination end to fully flush and clean the inner pipe. After cleaning, the driving motor 443 drives the baffle 4464 to rotate to the position corresponding to the opening 4463. The baffle 4464 fits tightly with the opening 4463 to prevent urine from leaking out from the inside.

[0044] The present invention provides an intelligent control opening and closing system for a urinary catheter through improvement, optimizes the setting of the urination main part 4, and sets an opening and closing structure in the catheter 41 of the urination main part 4. When the pressure sensor detects a pressure greater than 60 cm of water column, it opens, and when it is less than 20 cm of water column, it closes, so as to realize the function of automatic opening and closing. Then, the servo motor 423 drives the worm 424 and the worm wheel 425 to rotate so that the disc-shaped baffle 4283 cooperates with the arc-shaped sealing strips on both sides, controls the channel in the catheter 41 to automatically open and close, maintains the bladder capacity and restores the bladder's contraction function, thereby ensuring the health of the patient; through the coordinated control of the first opening and closing structure 42 and the second opening and closing structure 43, the slow and stable discharge of urine is further guaranteed. When urinating, the first opening and closing structure 42 near the two ends of the urinary catheter port is preferentially started to open the small port, and then the second opening and closing structure 43 is opened to discharge urine. out, avoiding the pain caused to the patient by the rapid spraying of urine; a flushing structure 44 is optimized on the urination main part 4, and a through-port 4463 is arranged in the catheter 41, which is close to the urination end and inclined toward the urination end, and the through-port 4463 is closed by the shielding component 446 to prevent urine from flowing out. At the same time, the through-port 4463 can be opened under the action of the shielding component 446, and the flushing liquid can be introduced to comprehensively and effectively clean the inside of the catheter 41, avoiding residual urine and breeding bacteria, and further improving the safety of use; the first arc-shaped sealing strip 4284 and the second arc-shaped sealing strip 4285 have the same structure and size, and are located in the middle of the vertical rod 4281 in reverse symmetry. The first arc-shaped sealing strip 4284 and the second arc-shaped sealing strip 4285 are both arc-shaped structures, and the length is greater than half of the circumference of the inner wall of the sleeve 421, which increases the sealing effect and avoids urine leakage.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0046] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A urinary catheter intelligent control opening and closing system, comprising a urinary catheter (1), wherein one end of the urinary catheter (1) is provided with a urinary catheter opening (2), and an air bag (3) is provided on the end of the urinary catheter (1) close to the urinary catheter opening (2), and an air inlet pipe (5) is provided on the other side of the outer surface of the urinary catheter (1); Its characteristics are: The inner side of the drainage tube at one end of the urinary catheter (1) is connected to a urination main part (4) that can improve the safety of use for the patient. The urinary catheter 1 is provided with a controller and a pressure sensor, and is connected to the urination main part 4 through the controller. When the pressure sensor detects a pressure greater than 60 cm water column, it opens, and when it is less than 20 cm water column, it closes. The urination main part (4) includes a catheter (41) connected to the inner side of the drainage tube for conducting urine, a first opening and closing structure (42) and a second opening and closing structure (43) respectively provided at one side and the other end of the catheter (41) and performing slow adjustment control and realizing automatic opening and closing according to the pressure in the bladder, and a flushing structure (44) fixed at one end of the catheter (41) and close to the first opening and closing structure (42) for improving cleaning efficiency and preventing bacterial growth. The first opening and closing structure (42) comprises a sleeve (421) embedded in the inner side of the conduit (41) and integrally formed therewith, a protective cover (422) fixedly connected to the outer side of the sleeve (421), a servo motor (423) mounted on the top side of the inner side of the protective cover (422), a worm (424) having one end connected to the left output end of the servo motor (423), a worm wheel (425) meshed with the front side of the worm (424), and a rotating shaft penetrating and fixed to the middle side of the inner side of the worm wheel (425). A rod (426), a transmission structure (427) connected to the bottom end of the rotating shaft rod (426), and a switch structure (428) connected to one side of the interior of the transmission structure (427); the other end of the worm (424) is rotatably connected to the protective cover (422); the top end of the rotating shaft rod (426) is rotatably connected to the protective cover (422); the bottom side of the transmission structure (427) is in contact with the protective cover (422); and the top end of the switch structure (428) passes through one side of the sleeve (421); The flushing structure (44) includes a cylinder (441) embedded in the inner side of the urinary catheter (1), an outer cover (442) fixed to one side of the cylinder (441), a driving motor (443) connected to the inner side of the outer cover (442), a small gear (444) connected to the output end of the driving motor (443) in the middle, an outer gear ring (445) meshing with the small gear (444) on the outer surface, and a shielding component (446) connected to one side of the outer gear ring (445); the middle of the other side of the small gear (444) is rotatably connected to the outer cover (442), and the outer gear ring (445) is rotatably connected to the inner wall of the cylinder (441); The shielding assembly (446) includes a sleeve (4461) fixed to the cylinder (441) on one side, a cavity (4462) provided inside the sleeve (4461), a through-port (4463) opened on the inner side of the cavity (4462), a retaining bar (4464) in contact with the inner side of the through-port (4463), a ring seat (4465) fixed to the other side of the retaining bar (4464), and a hose (4466) provided on one side of the cavity (4462) and passing through the outer cover (442); the other side of the ring seat (4465) is fixed to the outer gear ring (445); During urination, the first opening and closing structure (42) near the end of the urinary catheter port (2) is activated first to open the small port, and then the second opening and closing structure (43) is opened to discharge urine.

2. The intelligent control opening and closing system for a urinary catheter according to claim 1, characterized in that: The first opening and closing structure (42) and the second opening and closing structure (43) have the same structural size.

3. The intelligent control opening and closing system for a urinary catheter according to claim 1, characterized in that: The transmission structure (427) includes a disc (4271) whose middle portion is connected to the rotating shaft (426), a rotating block (4272) fixed to the middle portion of the bottom side of the disc (4271), a sliding frame (4273) wrapped around the outside of the rotating block (4272) and in contact with it, a positioning frame (4274) slidably connected to one side of the sliding frame (4273), a rack (4275) integrally formed on the other side of the sliding frame (4273), and a gear (4276) meshed with the other side of the rack (4275), the bottom side of the positioning frame (4274 is in contact with the protective cover (422), and the middle side of the gear (4276) is rotationally connected to the protective cover (422).

4. The intelligent control opening and closing system for a urinary catheter according to claim 3, characterized in that: The switch structure (428) comprises a vertical rod (4281) connected to the middle of the gear (4276), a sealing sleeve (4282) wrapped around the outside of the vertical rod (4281), a baffle (4283) whose bottom end is fixed to the vertical rod (4281), and a first arcuate sealing strip (4284) and a second arcuate sealing strip (4285) respectively contacting the rear and front sides of the baffle (4283).

5. The intelligent control opening and closing system for a urinary catheter according to claim 4, characterized in that: The first arc-shaped sealing strip (4284) and the second arc-shaped sealing strip (4285) have the same structure and size, and are located in the middle of the vertical pole (4281) and are arranged in reverse symmetry.

6. The intelligent control opening and closing system for urinary catheters according to claim 5, characterized in that: The first arc-shaped sealing strip (4284) and the second arc-shaped sealing strip (4285) are both arc-shaped structures, and their lengths are greater than half the circumference of the inner wall of the sleeve (421).

7. The intelligent control opening and closing system for urinary catheter according to claim 1, characterized in that: The through openings (4463) are distributed in an array, and the through openings (4463) are tilted toward the urination end, and when the blocking bar (4464) is rotated to a position corresponding to the through openings (4463), it fits tightly.

Images