Imitated natural bladder urination system

Abstract

The invention discloses a natural bladder imitating urination system which comprises an artificial bladder body and a controller connected with the artificial bladder body, the artificial bladder body comprises an outer bag body and an elastic inner bag body arranged in the outer bag body, and a urine storage cavity used for storing urine is defined by the inner bag body; the artificial bladder body is provided with a liquid inlet channel and a liquid outlet channel which are communicated with the urine storage cavity, the outer bag body is further connected with a switch valve used for opening or closing the liquid outlet channel, and a closed pressure stabilizing cavity is defined between the outer side wall of the inner bag body and the inner side wall of the outer bag body. An air pressure detection device which is located in the pressure stabilizing cavity and can detect air pressure is arranged on the artificial bladder body, the controller is electrically connected with the detection device so that air pressure parameters can be collected, and the controller is connected with the switch valve so that the switch valve can be controlled to be started and stopped. The natural bladder-imitating urination system is simple and compact in structure, more stable, safer and more reliable.

Description

Technical Field

[0001] The present invention particularly relates to a urination system imitating a natural bladder. Background Art

[0002] In the field of clinical medicine, cystectomy (radical cystectomy) is usually used to treat diseases such as invasive bladder cancer, severe bladder dysfunction or trauma. After surgery, patients need to store and excrete urine through alternative methods, which will have a certain impact on their lives, but through medical technology and adaptive adjustments, most patients can return to normal life. Among them, the main ways of replacing bladder function after surgery are: 1. Ileal bladder replacement (in situ new bladder), the principle is to use a section of small intestine (usually ileum) to reshape into a "new bladder", connected to the urethra, and patients can urinate through the original urethra. The advantage is that it is close to the natural urination method and does not require an external stoma. The disadvantage is that the new bladder function needs to be trained, and nocturnal urinary incontinence may occur. Regular catheterization is required to empty residual urine (some patients), and metabolic disorders (such as electrolyte imbalance) may occur in the long term; 2. Urinary tract ostomy, the principle is to intercept a section of the small intestine as a urine channel, One end is connected to the ureter, and the other end is a stoma on the abdominal wall. Urine flows into an external urine bag through the stoma. The advantages are that the operation is relatively simple, with fewer complications, no need for frequent catheterization, and convenient care. The disadvantage is that the stoma bag must be worn for life and needs to be replaced regularly, and skin irritation or infection around the stoma may occur; 3. Ureterocutaneous ostomy, the principle is to directly connect the ureter to the stoma on the abdominal wall. Urine continues to flow out and an external urine collection bag is required. It is usually used for elderly or poor patients. The disadvantages are narrow stoma, high risk of infection, and complex care. At present, there is no standard solution for bladder function replacement after radical cystectomy, and the operation is traumatic. Complications are very likely to occur after the operation, which seriously affects the patient's quality of life. With the continuous improvement of medical technology, when the patient's bladder is seriously and incurably endangered, it will be replaced, but it is difficult to find a matching human bladder. Therefore, some artificial natural bladders have appeared in clinical medicine to replace human bladders, such as the patent scheme with patent number CN202010253783.X and the name of artificial intelligent bladder. However, these artificial natural bladders are not only complex in structure, but also require a large number of electrical components to be arranged in the artificial bladder, which makes the artificial bladder structure bloated, and the stability and safety are low. More importantly, the traditional artificial bladder is heavy, which not only causes inconvenience and discomfort to patients in daily activities, but also because the weight of these devices does not increase significantly with the increase of urine storage, and they do not have the ability to deform with the increase of urine storage. Patients lose the physiological signals originally provided by the natural bladder-that is, as the amount of urine increases, the bladder wall gradually stretches and triggers nerve reflexes to send "full" signals to the brain. This loss makes patients lose an important way to perceive their own physiological state, which may cause negative emotions such as anxiety and uneasiness, and affect their mental health and participation in social activities.

[0003] The present invention is just produced based on the above-mentioned shortcomings. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a natural bladder urination system which is simple in structure, compact, more stable, safer and more reliable.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention provides a natural bladder urination system, comprising an artificial bladder body and a controller connected thereto, wherein the artificial bladder body comprises an outer bladder body, an inner bladder body which is arranged inside the outer bladder body and has elasticity, wherein the inner bladder body forms a urine storage cavity for storing urine, wherein the artificial bladder body is provided with a liquid inlet channel and a liquid outlet channel which are connected to the urine storage cavity, wherein the outer bladder body is further connected with a switch valve for opening or closing the liquid outlet channel, wherein an airtight pressure stabilizing cavity is formed between the outer side wall of the inner bladder body and the inner side wall of the outer bladder body, wherein the artificial bladder body is provided with an air pressure detection device which is located in the pressure stabilizing cavity and can detect air pressure, wherein the controller is electrically connected to the detection device and can collect air pressure parameters, and wherein the controller is connected to the switch valve and can control the start and stop of the switch valve.

[0007] In the natural bladder urination system as described above, the inner bladder body is made of a soft elastic material, and the outer bladder body is made of a hard material; or, both the inner bladder body and the outer bladder body are made of elastic materials, and the elastic coefficient of the outer bladder body is greater than the elastic coefficient of the inner bladder body.

[0008] In the simulated natural bladder urination system as described above, the switch valve is a normally closed solenoid valve, which includes a valve base and a valve housing, which form a accommodating chamber. The valve base is provided with a liquid inlet connecting the urine storage chamber and the accommodating chamber, the valve housing is provided with a liquid outlet connected to the accommodating chamber, a plug body capable of moving up and down is provided in the accommodating chamber, an elastic member for pushing the plug body to block the liquid outlet is provided between the plug body and the valve seat, a permanent magnet core is provided on the plug body, and a winding chamber surrounding the accommodating chamber is provided on the valve housing, and a winding coil is arranged in the winding chamber for forming a closed magnetic circuit with the permanent magnet core and thereby pushing the plug body away from the liquid outlet.

[0009] As described above, the natural bladder simulated urination system, the controller is provided with a control circuit board, a power supply, an operation button and a display screen, the control circuit board is electrically connected to the air pressure detection device, the switch valve and the display screen, the power supply is electrically connected to the control circuit board and can supply power to the air pressure detection device, the switch valve and the display screen.

[0010] As described above, the natural bladder urination system is simulated, wherein the controller is further provided with one or more of a sound alarm device, a light alarm device and a vibration device electrically connected to the control circuit board.

[0011] As described above, the artificial bladder body further comprises an upper mounting component and a lower mounting component, the top of the outer bladder body and the top of the inner bladder body are both connected to the upper mounting component, and the bottom of the outer bladder body and the bottom of the inner bladder body are both connected to the lower mounting component.

[0012] As described above, in the simulated natural bladder urination system, the liquid inlet channel runs through the upper mounting assembly, the upper mounting assembly is connected with a connecting pipe fitting, the connecting pipe fitting includes a main pipe inserted into the liquid inlet channel, and the top of the main pipe is connected with two branch pipes for connecting with the ureters.

[0013] As described above, the natural bladder urination system simulated, the upper mounting component includes an upper mounting seat, the upper mounting seat is connected to an upper connecting piece, the upper mounting seat and the upper connecting piece clamp and fix the outer sac body, the upper connecting piece is connected to an upper fixing piece, the upper connecting piece and the upper fixing piece clamp and fix the inner sac body; the liquid outlet channel runs through the lower mounting component, the lower mounting component includes a lower mounting seat, the lower mounting seat is connected to a lower connecting piece, the lower mounting seat and the lower connecting piece clamp and fix the outer sac body, the lower connecting piece is connected to a lower fixing piece, the lower connecting piece and the lower fixing piece clamp and fix the inner sac body, the lower fixing piece is provided with a concave liquid collecting groove in the middle part, and the top opening of the liquid outlet channel is located in the middle part of the liquid collecting groove.

[0014] As described above, the natural bladder urination system is connected between the upper fixing member and the lower fixing member with a support column tube that passes through from top to bottom. The upper part of the support column tube is connected to the liquid inlet channel, and the lower part is connected to the liquid outlet channel. The side wall of the support column tube is provided with a urination side port that connects its inner cavity with the urine storage cavity.

[0015] In the above-mentioned natural bladder urination system, the switch valve is connected to the bottom of the lower mounting assembly, and the outer side of the switch valve is wrapped with a wrapping shell made of soft material.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. Natural simulation of human physiological reactions: The inner capsule is made of elastic materials (such as medical silicone, polyurethane, etc.), which can automatically expand or contract according to changes in urine storage. This design is very close to the working mechanism of the human body's natural bladder, providing patients with a more natural user experience and helping to reduce the psychological burden caused by long-term reliance on external devices. In addition, due to the light structure of the product and the ability of the capsule to expand to a certain extent, patients have a more natural perception of the weight and volume changes of urine storage, and can always simulate the real feeling of the bladder in the process of increasing urine, and then accurately feedback to the patient through the system, which can accurately control urination while giving the user a more realistic experience. This not only helps patients perceive the time when they need to urinate more accurately, but also promotes the interactive experience between patients and the device, making them feel closer to their natural physiological state.

[0018] 2. Optimize the pressure regulation mechanism: The inner bladder will gradually expand when storing urine, thereby increasing the air pressure in the pressure stabilizing chamber. This pressure regulation mechanism based on physical principles not only simplifies the design complexity of the system, but also improves the reliability and response speed of the system. The air pressure detection device monitors in real time and feeds back to the controller to ensure that the urination process is started at the appropriate time to prevent risks caused by excessive expansion of the inner bladder.

[0019] 3. Enhanced safety performance: Since the inner capsule has a certain elastic range, it can ensure a certain degree of safety even in emergencies (such as power outages). Even if the switch valve cannot work normally, the elastic limit of the inner capsule can avoid the danger of excessive urine storage to a certain extent, giving patients additional safety protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the use principle of the natural bladder imitating urination system of the present invention;

[0021] Figure 2 yes Figure 1 A partial enlarged schematic diagram of

[0022] Figure 3 is a cross-sectional schematic diagram of the artificial bladder body of the present invention in a normal state;

[0023] Figure 4 is a cross-sectional schematic diagram of the artificial bladder body of the present invention in a non-urine storage state;

[0024] Figure 5 is a cross-sectional schematic diagram of the artificial bladder body of the present invention in a urine storage state;

[0025] Figure 6 is an exploded schematic diagram of the artificial bladder body of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the controller of the present invention;

[0027] Figure 8 It is a schematic diagram of the principle of the natural bladder urination system of the present invention;

[0028] Fig. 9 It is a partial structural diagram of the second embodiment of the present invention. DETAILED DESCRIPTION

[0029] The invention will be further described below in conjunction with the accompanying drawings:

[0030] The directions described in the specification of the present invention, such as "up", "down", "left", "right", "front", "back", etc., are based on the directions of the drawings and are intended to facilitate the description of the relationship between the various components. They do not indicate the unique or absolute positional relationship between the various components. They are only one of the implementation methods of the invention and are not a limitation on its implementation method.

[0031] Embodiment 1

[0032] This embodiment introduces a natural bladder urination system. Figure 1 and Figure 2 As shown, this system includes an artificial bladder body 1 and a controller 2 connected thereto. The artificial bladder body 1 is arranged at the position of the patient's original bladder. In order to improve stability, in actual clinical applications, a connection hole can usually be set on the artificial bladder body 1, and the artificial bladder body 1 is sutured and hung on the human body through the connection hole by surgical thread, so that the artificial bladder body 1 is not easy to shake. The controller 2 is located outside the patient's body and is connected to the artificial bladder body 1 through a connecting line. The connection method is similar to the method of inserting a urine bag after surgery. For detailed structure, refer to Figures 3 to 6As shown, the artificial bladder body 1 includes an outer bladder body 11, and an inner bladder body 12 which is arranged inside the outer bladder body 11 and has elasticity. The inner bladder body 12 encloses a urine storage cavity 100 for storing urine. The artificial bladder body 1 is provided with a liquid inlet channel 101 and a liquid outlet channel 102 which are connected to the urine storage cavity 100. The liquid inlet channel 101 is used to communicate with a renal catheter, and the liquid outlet channel 102 extends to the body through a pipeline. The outer bladder body 11 is also connected with a switch valve 13 for opening or closing the liquid outlet channel 102. The outer wall of the inner bladder body 12 is connected to the outer bladder body 11. The inner walls of the bladder body 11 enclose a closed pressure-stabilizing chamber 103. The artificial bladder body 1 is provided with an air pressure detection device 14 located in the pressure-stabilizing chamber 103 and capable of detecting air pressure. The controller 2 is electrically connected to the detection device so as to collect air pressure parameters. The controller 2 is connected to the switch valve 13 so as to control the start and stop of the switch valve 13. The air pressure detection device 14 can adopt a general air pressure sensor, and the switch valve 13 can adopt a general electromagnetic valve. In this way, when urine is continuously stored in the urine storage chamber 100, the inner bladder body 12 expands at a certain amplitude, such as Figures 4 to 5 , causing the air pressure in the pressure-stabilizing chamber 103 to continue to rise, which can be detected in time by the air pressure detection device 14 and controlled by the controller 2 to open the switch valve 13 for urination. The degree to which the air pressure in the pressure-stabilizing chamber 103 can be increased basically depends on the pressure of the liquid out of the urinary tube, so the safety performance is extremely high. In this embodiment, the inner capsule 12 is generally made of soft and elastic materials such as medical silicone (Silicone), polyurethane (PU), polytetrafluoroethylene, thermoplastic elastomer (TPE), etc., while the outer capsule 11 can be made of hard materials. The outer capsule 11 can also be made of the same material as the inner capsule 12. In this case, it is necessary to ensure that the wall thickness of the outer capsule 11 is much larger than that of the inner capsule 12. In other words, the stiffness of the outer capsule 11 is greater than that of the inner capsule 12. What are the advantages of the outer capsule 11 having a small deformation ability? The outer capsule 11 can be deformed slightly and can expand when the pressure in the pressure stabilizing chamber 103 is too high, thereby allowing the urine storage chamber 100 to store more urine and provide feedback to the patient through the tactile sensation of expansion.

[0033] As a preferred embodiment of the switch valve 13, the structure is as follows Figure 3 and Figure 6As shown, the switch valve 13 is a normally closed solenoid valve, which includes a valve base 131 and a valve housing 132, which enclose a receiving cavity. The valve base 131 is provided with a liquid inlet 133 connecting the urine storage cavity 100 and the receiving cavity, and the valve housing 132 is provided with a liquid outlet 134 connected to the receiving cavity. A plug body 135 that can move up and down is provided in the receiving cavity, and a plug body 135 is provided between the plug body 135 and the valve seat for pushing the plug body 135 to block the liquid outlet 134. The elastic member 136 of the valve body 134 is provided with a permanent magnet core 137 on the plug body 135, and the valve housing 132 is provided with a winding cavity 138 surrounding the accommodating cavity. The winding cavity 138 is provided with a winding coil 139 for forming a closed magnetic circuit with the permanent magnet core 137 and pushing the plug body 135 away from the liquid outlet 134. When the winding coil 139 is energized, it can push the permanent magnet core 137 and the plug body 135 to move upward, thereby opening the liquid outlet 134 to achieve normal urination function. As a further optimization, the switch valve 13 is connected to the bottom of the lower mounting assembly 16, and the outer side of the switch valve 13 is wrapped with a wrapping shell 19 made of soft material, and the wrapping shell 19 can be made of soft material to improve comfort.

[0034] like Figure 7 and Figure 8 As shown, the controller 2 is provided with a control circuit board 21, a power supply 22, an operation button 23 and a display screen 24. The control circuit board 21 is electrically connected to the air pressure detection device 14, the switch valve 13 and the display screen 24. The power supply 22 is electrically connected to the control circuit board 21 and can supply power to the air pressure detection device 14, the switch valve 13 and the display screen 24. The power supply 22 can adopt a general rechargeable lithium battery or a replaceable battery cell.

[0035] As a better solution, Figure 7 and Figure 8 As shown, the controller 2 is also provided with a sound alarm device 25, a light alarm device 26 and a vibration device 27 electrically connected to the control circuit board 21, wherein the sound alarm device 25 can be a speaker or a buzzer, the light alarm device 26 is an LED lamp, and the vibration device 27 is realized by a micro motor connected to an eccentric member. Of course, one or more of them can be set, so that when the air pressure detection device 14 detects a higher air pressure, the controller 2 can remind the patient through the display screen 24 or the sound alarm device 25, the light alarm device 26 or the vibration device 27, and promptly control the switch valve 13 to open for urination through the button 23.

[0036] As a preferred embodiment, the control circuit board 21 is preset with a gear for controlling the working power of the vibration device 27. As the urine storage in the urine storage cavity 100 increases, the inner capsule 12 continues to expand, and the air pressure change detected by the air pressure detection device 14 increases correspondingly with the urine storage amount. The change is displayed in real time on the display screen 24 through the equivalent conversion between the urine storage amount and the air pressure value, and the gear of the working power of the vibration device 27 also corresponds to it. At the same time, the vibration device 27 works at the corresponding gear according to the actual urine storage amount. For example, when the urine storage volume in the urine storage chamber 100 is 200ml, 300ml, and 400ml, the corresponding air pressure values ​​in the pressure stabilizing chamber 103 are P1, P2, and P3. The air pressure values ​​P1, P2, and P3 in the pressure stabilizing chamber 103 correspond to the working power levels R1, R2, and R3 of the vibration device 27. When the urine storage volume in the urine storage chamber 100 is 200ml, the air pressure value displayed on the display screen 24 is P1 or the corresponding warning level, and the vibration device 27 works in the R1 level for reminders. By analogy, it can also be divided into 4 or more levels.

[0037] In detail, Figure 6 As shown, in order to facilitate production and manufacture and to make the structure have extremely high stability and extremely long life, the artificial bladder body 1 also includes an upper mounting component 15 and a lower mounting component 16, the top of the outer bladder body 11 and the top of the inner bladder body 12 are both connected to the upper mounting component 15, and the bottom of the outer bladder body 11 and the bottom of the inner bladder body 12 are both connected to the lower mounting component 16.

[0038] In detail, Figure 3 and Figure 6 As shown, the liquid inlet channel 101 passes through the upper mounting component 15, and the upper mounting component 15 is connected to a connecting pipe 17, and the connecting pipe 17 includes a main pipe 171 inserted into the liquid inlet channel 101, and two branch pipes 172 for connecting to the ureter are connected to the top of the main pipe, and the two branch pipes 172 can be connected to the kidney's catheter by plugging and suturing.

[0039] In detail, Figure 3 and Figure 6As shown, the upper mounting assembly 15 includes an upper mounting seat 151, the upper mounting seat 151 is connected to an upper connecting member 152, the upper mounting seat 151 and the upper connecting member 152 clamp and fix the outer capsule 11, the upper connecting member 152 is connected to an upper fixing member 153, the upper connecting member 152 and the upper fixing member 153 clamp and fix the inner capsule 12; the liquid outlet channel 102 runs through the lower mounting assembly 16, the lower mounting assembly 16 includes a lower mounting seat 1 61, the lower mounting seat 161 is connected to the lower connecting member 162, the lower mounting seat 161 and the lower connecting member 162 clamp and fix the outer sac body 11, the lower connecting member 162 is connected to the lower fixing member 163, the lower connecting member 162 and the lower fixing member 163 clamp and fix the inner sac body 12, the lower fixing member 163 is provided with a concave liquid collecting groove 164 in the middle, the top opening of the liquid outlet channel 102 is located in the middle of the liquid collecting groove 164, so as to facilitate the smooth discharge of urine.

[0040] In order to improve the stability of the structure, Figure 3 and Figure 6 As shown, a support column tube 18 that passes through from top to bottom is connected between the upper fixing member 153 and the lower fixing member 163. The upper portion of the support column tube 18 is connected to the liquid inlet channel 101, and the lower portion is connected to the liquid outlet channel 102. A urination side port 181 is provided on the side wall of the support column tube 18, which connects its inner cavity with the urine storage cavity 100. The upper mounting assembly 15 and the lower mounting assembly 16 are fixed by the support column tube 18 to prevent structural deformation, and urine in the urine storage cavity 100 can also enter and exit through the urination side port 181. In this embodiment, in order to prevent the urine in the urine storage cavity 100 from flowing back upward due to excessive pressure or external force squeezing, a one-way check valve 182 is provided at the upper end of the support column tube 18. The one-way check valve 182 is a duckbill valve made of soft silicone. The duckbill valve is generally made of elastic material and has flexibility. The valve closing structure is that the valve outlet is flat duckbill-shaped, automatically opens under positive fluid pressure, and closes under reverse pressure or no pressure. The principle is that no external control is required, and one-way flow is achieved by relying on fluid pressure and material elastic deformation. Of course, the one-way check valve 182 can also be an umbrella valve (UmbrellaValve) or a flap valve (FlapValve).

[0041] Embodiment 2

[0042] This embodiment introduces a natural bladder urination system. The difference from the first embodiment is that the switch valve 13 of this embodiment adopts a different structure, such as Fig. 9As shown, the switch valve 13 is a normally closed solenoid valve, which includes a valve base 131 and a valve housing 132, which enclose a receiving cavity. Of course, the two can also be an integrated structure. A soft elastic tube 130 connected to the liquid outlet channel 102 is provided in the housing 132. The soft elastic tube 130 can be made of materials such as medical silicone and has a certain elasticity. A movable permanent magnetic core 137 is also provided in the housing 132. An elastic member 136 for pushing the permanent magnetic core 137 to move is provided between the permanent magnetic core 137 and the housing 132. The permanent magnetic core 137 is provided with at least two and is located in the soft The permanent magnet core 137 is arranged on both sides or around the soft elastic tube 130, so that the permanent magnet core 137 can clamp the soft elastic tube 130 when it moves. The permanent magnet core 137 is surrounded by a winding coil 139. When the winding coil 139 is powered off, the elastic member 136 pushes the permanent magnet core 137 to move and clamp the soft elastic tube 130, so that the soft elastic tube 130 is closed. When the winding coil 139 is powered on, it pushes the permanent magnet core 137 to move and loosen the soft elastic tube 130, and the soft elastic tube 130 resumes the conductive state. This scheme is conducive to inserting a catheter through the inside of the soft elastic tube 130 for clinical examination and treatment.

[0043] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A natural bladder urination system, characterized in that: The invention comprises an artificial bladder body (1) and a controller (2) connected thereto, wherein the artificial bladder body (1) comprises an outer bladder body (11), an inner bladder body (12) which is arranged inside the outer bladder body (11) and has elasticity, wherein the inner bladder body (12) forms a urine storage cavity (100) for storing urine, and the artificial bladder body (1) is provided with a liquid inlet channel (101) and a liquid outlet channel (102) which are connected to the urine storage cavity (100), and the outer bladder body (11) is also connected with a control device for opening or closing the urine storage cavity. The switch valve (13) of the liquid outlet channel (102) is provided with a closed pressure-stabilizing chamber (103) formed between the outer wall of the inner bladder body (12) and the inner wall of the outer bladder body (11). The artificial bladder body (1) is provided with an air pressure detection device (14) located in the pressure-stabilizing chamber (103) and capable of detecting air pressure. The controller (2) is electrically connected to the detection device and can collect air pressure parameters. The controller (2) is connected to the switch valve (13) and can control the start and stop of the switch valve (13).

2. The natural bladder urination system according to claim 1, characterized in that: The inner capsule (12) is made of a soft elastic material, and the outer capsule (11) is made of a hard material; Alternatively, the inner capsule (12) and the outer capsule (11) are both made of elastic material, and the elastic coefficient of the outer capsule (11) is greater than the elastic coefficient of the inner capsule (12).

3. The natural bladder urination system according to claim 1, characterized in that: The switch valve (13) is a normally closed electromagnetic valve, which comprises a valve base (131) and a valve housing (132), which enclose a receiving chamber. The valve base (131) is provided with a liquid inlet (133) connecting the urine storage chamber (100) and the receiving chamber, and the valve housing (132) is provided with a liquid outlet (134) communicating with the receiving chamber. A plug body (135) capable of moving up and down is provided in the receiving chamber. The plug body (135) An elastic member (136) is provided between the valve seat and the plug body (135) for pushing the plug body (135) to block the liquid outlet (134); a permanent magnet core (137) is provided on the plug body (135); a winding cavity (138) surrounding the accommodating cavity is provided on the valve housing (132); a winding coil (139) is arranged in the winding cavity (138) for forming a closed magnetic circuit with the permanent magnet core (137) and thereby pushing the plug body (135) away from the liquid outlet (134).

4. The natural bladder urination system according to claim 1, characterized in that: The controller (2) is provided with a control circuit board (21), a power supply (22), an operation button (23) and a display screen (24); the control circuit board (21) is electrically connected to the air pressure detection device (14), the switch valve (13) and the display screen (24); the power supply (22) is electrically connected to the control circuit board (21) and can supply power to the air pressure detection device (14), the switch valve (13) and the display screen (24).

5. The natural bladder urination system according to claim 4, characterized in that: The controller (2) is also provided with one or more of a sound alarm device (25), a light alarm device (26) and a vibration device (27) electrically connected to the control circuit board (21).

6. The natural bladder urination system according to claim 1, characterized in that: The artificial bladder body (1) further comprises an upper mounting component (15) and a lower mounting component (16); the top of the outer bladder body (11) and the top of the inner bladder body (12) are both connected to the upper mounting component (15); and the bottom of the outer bladder body (11) and the bottom of the inner bladder body (12) are both connected to the lower mounting component (16).

7. The natural bladder urination system according to claim 6, characterized in that: The liquid inlet channel (101) passes through the upper mounting assembly (15), and the upper mounting assembly (15) is connected to a connecting pipe (17). The connecting pipe (17) includes a main pipe (171) inserted into the liquid inlet channel (101), and the top of the main pipe is connected to two branch pipes (172) for connecting to the ureters.

8. The natural bladder urination system according to claim 6, characterized in that: The upper mounting assembly (15) comprises an upper mounting seat (151), the upper mounting seat (151) is connected to an upper connecting member (152), the upper mounting seat (151) and the upper connecting member (152) clamp and fix the outer sac (11), the upper connecting member (152) is connected to an upper fixing member (153), the upper connecting member (152) and the upper fixing member (153) clamp and fix the inner sac (12); the liquid outlet channel (102) passes through the lower mounting assembly (16), the lower mounting assembly (16) comprises a lower The mounting seat (161) is connected to a lower connecting piece (162), the lower mounting seat (161) and the lower connecting piece (162) clamp and fix the outer capsule (11), the lower connecting piece (162) is connected to a lower fixing piece (163), the lower connecting piece (162) and the lower fixing piece (163) clamp and fix the inner capsule (12), a concave liquid collecting groove (164) is provided in the middle of the lower fixing piece (163), and the top opening of the liquid outlet channel (102) is located in the middle of the liquid collecting groove (164).

9. The natural bladder urination system according to claim 8, characterized in that: A support column tube (18) that passes through from top to bottom is connected between the upper fixing member (153) and the lower fixing member (163); the upper portion of the support column tube (18) is connected to the liquid inlet channel (101), and the lower portion is connected to the liquid outlet channel (102); and a urination side port (181) that connects its inner cavity with the urine storage cavity (100) is provided on the side wall of the support column tube (18).

10. The natural bladder urination system according to claim 6, characterized in that: The switch valve (13) is connected to the bottom of the lower mounting assembly (16), and the outer side of the switch valve (13) is wrapped with a wrapping shell (19) made of soft material.

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