Magnetic control urethral catheterization device and urination control method thereof

Abstract

The invention discloses a magnetic control urethral catheterization device and a urination control method thereof.The magnetic control urethral catheterization device comprises a urethral catheter, a magnetic control urethral catheterization pump and an in-vitro driver, the urethral catheter comprises a fixing part and a catheter body, the lower end of the catheter body is connected with the magnetic control urethral catheterization pump, and the magnetic control urethral catheterization pump comprises a connecting pipe, an impeller, a brake block and the like; the in-vitro driver is used for driving the magnetic control urinary catheterization pump to be opened and closed. The catheter is anchored to the urethra through the fixing part of the catheter, long-term working stability is guaranteed, the magnetic control catheterization pump is accurately controlled in a non-contact mode through the in-vitro driver, when a patient needs to urinate, only the in-vitro driver needs to be operated, generated magnetic force can drive the in-vivo valve to be opened, urine is guided to be discharged from the urination hole, and the operation is simple and convenient. In the process, bladder emptying is actively completed, the damaged detrusor muscle function is simulated and replaced, and then the problem of urination disorder caused by low activity of the detrusor muscle can be solved.

Description

Technical Field

[0001] This invention belongs to the field of medical catheterization devices, specifically relating to a magnetically controlled catheterization device and its urination control method. Background Technology

[0002] Dysuria is a common manifestation of lower urinary tract dysfunction. Patients may experience a weak urine stream, thin urine stream, or hesitation when urinating, usually requiring increased abdominal pressure to empty the bladder. After urination, patients often feel an incomplete emptying of the bladder, with residual urine remaining. In severe cases, patients may experience complete urinary retention, where no urine is expelled. Dysuria not only affects a patient's quality of life but can also lead to complications such as urinary tract infections and hydronephrosis due to long-term urinary retention, which can be life-threatening in severe cases. Urodynamic testing in these patients reveals common urodynamic abnormalities including detrusor muscle weakness, bladder outlet obstruction, and increased residual urine. In male patients, a common cause of bladder outlet obstruction is benign prostatic hyperplasia (BPH). If the detrusor muscle is not decompensated, symptoms can be relieved with oral alpha-blockers or 5α-reductase inhibitors; or surgical treatment can be performed to remove the enlarged prostate and relieve the obstruction. Detrusor muscle inactivity is another important cause of urinary difficulty. There are many causes of detrusor muscle inactivity, such as long-term benign prostatic hyperplasia leading to detrusor muscle decompensation, diabetic peripheral neuropathy causing damage to the peripheral nerves innervating the detrusor muscle, and neurological diseases such as Parkinson's syndrome, multiple sclerosis, and spinal cord injury causing damage to the central nerves innervating the detrusor muscle. Unlike bladder outlet obstruction, there is currently no ideal treatment plan for urinary difficulty caused by detrusor muscle inactivity.

[0003] Currently, there is no ideal drug to treat detrusor inactivity; that is, no drug can effectively enhance the contractile force of the detrusor muscle. The bladder detrusor muscle is innervated by M receptors and belongs to the autonomic nervous system; the strength of bladder contraction is not under conscious control. Existing M receptor agonists (such as pyridostigmine bromide) theoretically have the effect of enhancing detrusor muscle contraction, but their efficacy is poor, and they have many side effects, severely limiting their application. Some patients with neurological damage may have no detrusor muscle contraction at all, or both contractile force and contraction time may be very limited, resulting in a large amount of residual urine even after urine is expelled. These patients usually require indwelling catheters or intermittent clean catheterization. Long-term repeated indwelling catheterization may lead to urinary tract infections, and intermittent clean catheterization may place a significant psychological burden on patients, potentially leading to poor compliance due to urethral irritation. Sacral nerve modulation surgery, by applying electrical stimulation to the nerves innervating the bladder, may help alleviate detrusor inactivity and residual urine caused by neurological diseases, but there is currently a lack of unified standards, and the surgery is expensive. Therefore, new catheterization devices and their control methods are needed. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the background art and provide a magnetically controlled urinary catheterization device and a method for controlling urination thereon.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A magnetically controlled urinary catheterization device includes a catheter, a magnetically controlled urinary pump, and an external actuator. The catheter includes a fixing part and a tube body, and the lower end of the tube body is connected to the magnetically controlled urinary pump. The external actuator is used to drive the magnetically controlled urinary pump to open and close, and to provide urination power.

[0006] This invention anchors the catheter to the urethra via a fixed part, ensuring long-term operational stability. The magnetically controlled catheter pump is precisely controlled non-contactly by an external actuator. When the patient needs to urinate, simply operating the external actuator generates magnetic force that drives the internal valve to open, guiding urine out of the urination port. This process actively empties the bladder, simulating and replacing the function of the damaged detrusor muscle, thereby solving the problem of urination disorders caused by low detrusor muscle activity.

[0007] Nickel-titanium alloys have excellent corrosion resistance and biocompatibility, making them the most suitable alloys for long-term implantation in human tissues. This material can recover its pre-set shape at body temperature and is used in cardiovascular intervention, orthopedic repair, and brain-computer interface stents. Its flexibility is 60% higher than that of traditional materials, and its bone healing speed is 20% faster.

[0008] Preferably, the magnetically controlled catheter pump includes a connecting pipe, a magnetically controlled impeller, an impeller shaft, and a urination gate. The connecting pipe is fixedly connected to the bottom of the pipe body, and a catheter seat is formed at the bottom inner part of the connecting pipe. A urination hole is opened in the middle of the catheter seat. An impeller fixing seat is formed at the top of the connecting pipe. A catheter pump chamber is formed between the impeller fixing seat, the catheter seat, and the connecting pipe. A urination hole is opened on the impeller fixing seat. The impeller shaft is located at the lower part of the impeller fixing seat. The magnetically controlled impeller is slidably mounted on the impeller shaft. The urination gate is located at the lower part of the magnetically controlled impeller and cooperates with the urination hole. A magnetically conductive coating is provided on the top of the catheter seat.

[0009] In this invention, when the catheter pump chamber is filled with urine, the urine pressure causes the urination gate to seal the urination orifice like a stopper, blocking urine flow. When the magnetically controlled impeller rotates under the influence of the rotating magnetic field, it generates lift, causing the urination gate to rise, opening the urination orifice and allowing urine to flow out. Once no urine flows out, the magnetic field stops rotating, and the magnetically controlled impeller returns to its original position under the attraction of the magnetic coating. The urination gate falls back into the urination orifice, and the catheter returns to its normally closed state. Thus, the magnetically controlled catheter pump simulates the function of the detrusor muscle.

[0010] When the impeller of this invention rises to its highest position and continues to rotate, it generates a downward thrust on the urine, accelerating the discharge of urine. The urine outside the catheter in the bladder enters the catheter pump chamber through the catheter port, and under the push of the impeller, it flows out from the discharge port until there is no more urine in the bladder to replenish the catheter pump chamber, thus achieving the function of actively emptying the bladder.

[0011] Preferably, the magnetically controlled impeller includes a slider and blades. A through hole is provided in the middle of the slider, and the through hole is sleeved on the outside of the impeller shaft. Two blades are arranged opposite each other on both sides of the slider, and the far ends of the two blades are the magnetic south pole and the magnetic north pole, respectively.

[0012] The two blades of this invention have magnetic south and magnetic north poles at their distal ends, respectively. When the external actuator approaches, the magnetic poles of the blades will generate torque by changing the direction of the magnetic field, thereby being pulled to achieve continuous rotation. At the same time, since the slider can slide up and down the impeller shaft, the impeller can rotate and rise and fall synchronously with the external actuator without contact, thus completing the purpose of bladder emptying.

[0013] Preferably, the bottom of the slider is further provided with an impeller bushing. The impeller bushing has a cavity formed inside to facilitate the up and down movement of the impeller shaft. The top of the impeller bushing is an open end and the bottom is a closed end. As the impeller rotates, it rises. The bottom end of the impeller shaft hits the bushing substrate, thereby limiting the impeller from rising further. The inner bottom of the impeller bushing is provided with a bushing substrate, which is made of a hard and wear-resistant material, is wear-resistant, and has low friction with the impeller shaft.

[0014] Preferably, the impeller fixing seat includes an impeller base and base ribs, and several base ribs are arranged in an array along the circumferential direction of the impeller shaft base, with the urinary catheter hole formed between two adjacent base ribs.

[0015] In this invention, urine enters the catheter pump cavity through the catheter port. The impeller base is connected to the wall of the connecting tube through the base rib, and the base rib plays a fixing role for the base. The catheter, impeller base and base rib are made of the same nickel-titanium alloy material.

[0016] Preferably, the urination hole is funnel-shaped, wider at the top and narrower at the bottom, and the urination gate is a conical alloy block, wider at the top and narrower at the bottom, which fits tightly against the wall of the urination hole when closed.

[0017] Preferably, the catheter body and the fixing part are both spring-shaped hollow metal tubes made of nickel-titanium alloy wires, and the fixing part is configured to expand from a radially constricted state to a predetermined funnel shape at body temperature.

[0018] The fixing part of this invention is a catheter that gradually tapers at the top for easy implantation into the human body. After implantation, the gradually tapering top extends deep into the bladder. Under body temperature, the bladder portion of the catheter returns to a pre-set funnel shape, with the diameter of the funnel-shaped opening being much larger than the outer diameter of the catheter. This allows the catheter to be safely secured at the urethral opening within the bladder, thus fixing the catheter and preventing it from slipping out of the body due to gravity. At the same time, the catheter is made of tightly wound metal wire into a spring-like tube, ensuring both the strength of the tube wall and the flexibility of the catheter, thereby reducing the patient's foreign body sensation in the urethra.

[0019] The circumference of the catheter of this invention is based on that of existing transurethral instruments, ensuring smooth implantation into the urethra. The tight wrapping of the catheter by the urethral wall and the bend of the catheter help prevent the catheter from sliding up and down in the urethra and into the bladder due to urethral tissue peristalsis.

[0020] Preferably, the external actuator includes a housing, a drive motor, and a magnetic strip. The drive motor is located at the inner bottom of the housing and in the middle of the housing, and the magnetic strip is located at the output end of the drive motor.

[0021] This invention constructs a compact magnetic drive system by rationally placing the drive motor at the bottom of the housing and directly connecting it to the magnetic strip, effectively optimizing the spatial layout and power transmission efficiency.

[0022] The method for controlling urination using a magnetically controlled catheter includes the following steps: S1, normally closed, in the non-urination state, the urine pressure in the chamber of the urination pump and the magnetic force between the magnetic coating and the impeller drive the urination gate block to block the urination hole, so that the device remains normally closed. S2, magnetic field driven opening: When urination is required, the magnetically controlled impeller inside the device is rotated by an external actuator. The rotational motion of the magnetically controlled impeller is converted into the lifting and lowering motion of the urination gate block to open the urination hole. S3, Active urine pumping: After the magnetically controlled impeller rotates and rises to its highest position, the continuously rotating magnetically controlled impeller generates a downward thrust on the urine entering the urine pump chamber, causing it to be discharged from the opened urination hole at an accelerated speed. S4, Automatic Reset Step: When urination is finished, the external actuator is stopped, and the magnetically controlled impeller falls back to its initial position under the magnetic attraction of the magnetic coating, and drives the urination gate block to re-seal the urination hole, so that the device returns to the normally closed state.

[0023] In summary, the beneficial effects of this invention are as follows: 1. This invention anchors the catheter to the urethra via a fixed part, ensuring long-term operational stability. The magnetically controlled catheter pump is precisely controlled non-contactly by an external actuator. When the patient needs to urinate, simply operate the external actuator, and the generated magnetic force will drive the internal valve to open, guiding urine out of the urination hole. This process actively completes bladder emptying, simulating and replacing the function of the damaged detrusor muscle, thereby solving the problem of urination disorders caused by low detrusor muscle activity. 2. In this invention, when the chamber of the catheter pump is filled with urine, the pressure of the urine causes the urination gate to seal the urination hole like a bottle stopper, blocking the flow of urine. When the magnetically controlled impeller rotates under the action of the rotating magnetic field, the magnetically controlled impeller generates lift, which drives the urination gate to rise, opening the urination hole and allowing urine to be discharged from the urination hole. When no urine flows out of the body, the magnetic field rotation stops, and the magnetically controlled impeller falls back to its original position under the attraction generated by the magnetic coating. The urination gate falls back into the urination hole, and the catheter returns to its normally closed state. Thus, the magnetically controlled catheter pump simulates and replaces the function of the detrusor muscle. 3. When the impeller of the present invention rises to its highest position, it continues to rotate, generating a downward thrust on the urine, accelerating the discharge of urine. The urine outside the catheter in the bladder enters the catheter pump chamber through the catheter port, and under the push of the impeller, it flows out from the discharge port until there is no urine in the bladder to replenish the catheter pump chamber, thereby achieving the function of actively emptying the bladder. 4. The fixing part of this invention is a catheter that gradually tapers at the top for easy implantation into the human body. After implantation, the gradually tapering top extends into the bladder. Under body temperature, the bladder portion of the catheter returns to a pre-set funnel shape. The diameter of the funnel-shaped opening is much larger than the outer diameter of the catheter, allowing the catheter to be safely secured at the urethral opening inside the bladder. This fixes the catheter and prevents it from slipping out of the body due to gravity. At the same time, the catheter is made of tightly wound metal wire into a spring-like tube, ensuring both the strength of the tube wall and the flexibility of the catheter, thereby reducing the patient's foreign body sensation in the urethra. Attached Figure Description

[0024] Figure 1 This is an overall schematic diagram of the magnetically controlled catheterization device of the present invention; Figure 2 This is a cross-sectional schematic diagram of the magnetically controlled catheterization device of the present invention; Figure 3 This is a schematic diagram of the urination gate of the magnetically controlled urination device of the present invention after it is opened; Figure 4 This is the present invention. Figure 2 An enlarged view of point A; Figure 5 This is a top view schematic diagram of the magnetic coating of the present invention; Figure 6 This is a top view schematic diagram of the magnetically controlled impeller of the present invention; Figure 7This is a side view of the magnetically controlled impeller of the present invention; Figure 8 This is a schematic diagram of the impeller mounting base of the present invention; Figure 9 This is a schematic diagram of the top of the fixation part of the urinary catheter of the present invention after it has been implanted into the human body; Figure 10 This is a schematic diagram of an external actuator according to an embodiment of the present invention; 1. Urinary catheter; 11. Tube body; 12. Fixing part; 2. Magnetic control urinary catheter pump; 20. Connecting tube; 21. Magnetic control impeller; 211. Slider; 212. Blade; 213. Through hole; 22. Impeller shaft; 23. Urinating gate block; 24. Impeller bushing; 241. Cavity; 242. Bushing substrate; 3. External actuator; 33. Magnetic strip; 34. Housing; 35. Drive motor; 4. Urinary catheter seat; 41. Urinating hole; 42. Magnetic coating; 6. Impeller fixing seat; 61. Urinary catheter hole; 62. Impeller base; 63. Base rib; 5. Urinary catheter pump chamber. Detailed Implementation

[0025] The following specific embodiments are merely illustrative of the present invention and are not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present invention.

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Example

[0028] like Figures 1-3 As shown, a magnetically controlled catheterization device includes a catheter 1, a magnetically controlled catheterization pump 2, and an external actuator 3. The catheter 1 includes a fixing part 12 and a tube body 11, and the lower end of the tube body 11 is connected to the magnetically controlled catheterization pump 2. The external actuator 3 is used to drive the magnetically controlled catheterization pump 2 to open and close. The tube body 11 and the fixing part 12 of the catheter 1 are both spring-shaped hollow metal tubes made of nickel-titanium alloy wires. The fixing part 12 is configured to expand from a radially contracted state to a predetermined funnel shape at body temperature.

[0029] like Figures 2-3As shown, the magnetically controlled urinary catheter pump 2 includes a connecting pipe 20, a magnetically controlled impeller 21, an impeller shaft 22, and a urination gate block 23. The connecting pipe 20 is fixedly connected to the bottom of the pipe body 11. A urination catheter seat 4 is formed at the inner bottom of the connecting pipe 20, and a urination hole 41 is opened in the middle of the urination catheter seat 4. An impeller fixing seat 6 is formed at the top of the connecting pipe 20. A urinary catheter pump chamber 5 is formed between the impeller fixing seat 6, the urination catheter seat 4, and the connecting pipe 20. The seat 6 has a urination port 61. The impeller shaft 22 is located at the lower part of the impeller fixing seat 6. The magnetically controlled impeller 21 is slidably mounted on the impeller shaft 22. The urination gate block 23 is located at the lower part of the magnetically controlled impeller 21 and cooperates with the urination port 41. The top of the urination seat 4 is provided with a magnetically conductive coating 42. The urination port 41 is funnel-shaped with a larger top and a smaller bottom. The urination gate block 23 is a conical alloy block with a larger top and a smaller bottom, which fits tightly against the wall of the urination port 41 when closed.

[0030] like Figures 6-7 As shown, the magnetically controlled impeller 21 includes a slider 211 and blades 212. A through hole 213 is provided in the middle of the slider 211. The through hole 213 is sleeved on the outside of the impeller shaft 22. Two blades 212 are arranged opposite to each other on both sides of the slider 211. The far ends of the two blades 212 are the magnetic south pole and the magnetic north pole, respectively.

[0031] like Figure 4 As shown, the bottom of the slider 211 is also provided with an impeller bushing 24. The impeller bushing 24 has a cavity 241 formed inside to facilitate the up and down movement of the impeller shaft 22. The top of the impeller bushing 24 is an open end and the bottom is a closed end. The inner bottom of the impeller bushing 24 is provided with a bushing substrate 242. The bushing substrate 242 is made of hard wear-resistant material, which is wear-resistant and has low friction with the impeller shaft.

[0032] like Figure 8 As shown, the impeller fixing seat 6 includes an impeller base 62 and a base rib 63. Several base ribs 63 are arranged in an array along the circumferential direction of the impeller shaft base 62, and the urinary guide hole 61 is formed between two adjacent base ribs 63.

[0033] like Figure 10 As shown, the external actuator 3 includes a housing 34, a drive motor 35, and a magnetic strip 33. The drive motor 35 is located at the inner bottom of the housing 34, and the magnetic strip 33 is located at the output end of the drive motor 35.

[0034] The method for controlling urination using a magnetically controlled catheter includes the following steps: S1, normally closed, in the non-urination state, the urine pressure in the catheter pump chamber 5 is used to drive the urination gate block 23 to block the urination hole 41, so that the device is kept in a normally closed state. S2, magnetic field driven opening: when urination is needed, the magnetically controlled impeller 21 in the external driver 3 is driven to rotate. The rotational motion of the magnetically controlled impeller 21 is converted into the lifting and lowering motion of the urination gate block 23 to open the urination hole 41. S3, Active urination: After the magnetically controlled impeller 21 rotates and rises to its highest position, the continuously rotating magnetically controlled impeller 21 generates a downward thrust on the urine entering the urination pump chamber 5, causing it to be discharged from the opened urination hole 41 at an accelerated speed. S4, Automatic Reset Step: When urination is finished, the external actuator 3 stops generating the rotating magnetic field, and the magnetically controlled impeller 21 falls back to its initial position under the magnetic attraction of the magnetic coating 42, and drives the urination gate block 23 to re-seal the urination hole 41, so that the device returns to the normally closed state.

[0035] Working principle: such as Figure 1-10 As shown, during use, the device is inserted into the urethra via a spring-shaped metal tube made of nickel-titanium alloy wire, tapering at the top and connected to the magnetically controlled urinary pump 2 at the bottom. When the urinary pump chamber 5 is filled with urine, the urine pressure causes the urination gate 23 to seal the urination hole like a stopper, blocking urine flow. When the patient needs to urinate, the patient can drive the external controller 3 to generate a rotating magnetic field. When the magnetically controlled impeller 21 rotates under the force of the rotating magnetic field, it generates lift, causing the urination gate 23 to rise, opening the urination hole 41 and allowing urine to flow. The liquid is discharged from the urination hole 41. The magnetically controlled impeller 21 rises to its highest position and continues to rotate, generating a downward thrust on the urine and accelerating its discharge. The urine outside the catheter in the bladder enters the catheter pump chamber through the catheter hole. Driven by the magnetically controlled impeller 21, it flows out from the urination hole until no more urine is added to the catheter pump chamber. At this point, the external phenomenon is that no urine flows out of the body. The magnetic field stops rotating, and the magnetically controlled impeller 21 falls back to its original position under the attraction generated by the magnetic coating 42. The urination gate 23 falls back into the urination hole, and the catheter returns to its normally closed state.

Claims

1. A magnetically controlled urinary catheterization device, characterized in that, It includes a urinary catheter (1), a magnetically controlled urinary pump (2), and an external actuator (3); the urinary catheter (1) includes a fixing part (12) and a tube body (11), the lower end of which is connected to the magnetically controlled urinary pump (2); the external actuator (3) is used to drive the magnetically controlled urinary pump (2) to open and close.

2. The magnetically controlled catheterization device according to claim 1, characterized in that, The magnetically controlled urinary catheter pump (2) includes a connecting pipe (20), a magnetically controlled impeller (21), an impeller shaft (22), and a urination gate block (23). The connecting pipe (20) is fixedly connected to the bottom of the pipe body (11). A urination seat (4) is formed at the bottom of the inner part of the connecting pipe (20), and a urination hole (41) is opened in the middle of the urination seat (4). An impeller fixing seat (6) is formed at the top of the connecting pipe (20). The impeller fixing seat (6) and the urination seat (23) are connected together. 4) A catheter pump chamber (5) is formed between the catheter and the connecting pipe (20). A catheter hole (61) is provided on the impeller fixing seat (6). The impeller shaft (22) is located at the lower part of the impeller fixing seat (6). The magnetically controlled impeller (21) is slidably mounted on the impeller shaft (22). The urination gate block (23) is located at the lower part of the magnetically controlled impeller (21) and cooperates with the urination hole (41). The top of the catheter seat (4) is provided with a magnetically conductive coating (42).

3. The magnetically controlled catheterization device according to claim 2, characterized in that, The magnetically controlled impeller (21) includes a slider (211) and blades (212). A through hole (213) is provided in the middle of the slider (211). The through hole (213) is sleeved on the outside of the impeller shaft (22). Two blades (212) are arranged opposite to each other on both sides of the slider (211). The far ends of the two blades (212) are the magnetic south pole and the magnetic north pole, respectively.

4. A magnetically controlled catheterization device according to claim 3, characterized in that, The bottom of the slider (211) is also provided with an impeller bushing (24). The impeller bushing (24) has a cavity (241) inside that facilitates the up and down movement of the impeller shaft (22). The top of the impeller bushing (24) is an open end and the bottom is a closed end.

5. A magnetically controlled catheterization device according to claim 4, characterized in that, The inner bottom of the impeller bushing (24) is provided with a bushing substrate (242), which is made of hard wear-resistant material, wear-resistant and with low friction between it and the impeller shaft.

6. A magnetically controlled catheterization device according to claim 2, characterized in that, The impeller mounting base (6) includes an impeller base (62) and base ribs (63). Several base ribs (63) are arranged in an array along the circumferential direction of the impeller shaft base (62), and the urinary catheter hole (61) is formed between two adjacent base ribs (63).

7. A magnetically controlled catheterization device according to claim 2, characterized in that, The urination hole (41) is funnel-shaped with a larger top and a smaller bottom; the urination gate block (23) is a cone-shaped alloy block with a larger top and a smaller bottom, which fits tightly against the wall of the urination hole (41) when closed.

8. A magnetically controlled catheterization device according to claim 1, characterized in that, The catheter (1) has a tube body (11) and a fixing part (12) that are both spring-shaped hollow metal tubes made of nickel-titanium alloy wires. The fixing part (12) is configured to expand from a radially constricted state to a predetermined trumpet shape at body temperature.

9. A magnetically controlled catheterization device according to claim 1, characterized in that, The external actuator (3) includes a housing (34), a drive motor (35), and a magnetic strip (33). The drive motor (35) is located at the bottom of the housing (34) and in the middle of the housing (34). The magnetic strip (33) is located at the output end of the drive motor (35).

10. A method for controlling urination using the magnetically controlled urinary catheterization device according to claims 1-9, characterized in that, Includes the following steps: S1, normally closed, in the non-urination state, the urine pressure in the urination pump chamber (5) and the attraction between the impeller and the magnetic coating drive the urination gate block (23) to block the urination hole (41) so that the device remains normally closed; S2, magnetic field driven opening. When urination is required, the magnetic control impeller (21) in the device is driven to rotate by the external driver (3). The rotational motion of the magnetic control impeller (21) is converted into the lifting force of the urination gate block (23) to open the urination hole (41). S3, Active pumping urine: After the magnetically controlled impeller (21) rotates and rises to the highest position, the magnetically controlled impeller (21) continues to rotate and generates a downward thrust on the urine entering the urine pump chamber (5), causing it to be discharged from the opened urination hole (41) at an accelerated speed. S4, Automatic Reset Step: When urination ends, the external actuator (3) is stopped. The magnetically controlled impeller (21) falls back to its initial position under the magnetic attraction of the magnetic coating (42), and drives the urination gate block (23) to re-seal the urination hole (41), so that the device returns to the normally closed state.

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