Urethral catheterization device capable of exercising urine suffocating muscle and training method

Abstract

The invention relates to the field of medical instruments, and particularly discloses a urethral catheterization device capable of exercising urine suffocating muscles, which is arranged between a urethral catheter and an evacuating catheter along a first direction so as to connect the urethral catheter and the evacuating catheter, and comprises a first connecting piece, a second connecting piece and a third connecting piece, the second connecting piece forms a second communicating cavity communicating with the first communicating cavity in the first direction; the valve is movably arranged on the inner wall of the first communicating cavity; the film sleeve is arranged on the inner wall of the first communicating cavity; the pressure sensor is fixed at one end, inserted into the bladder, of the catheter to detect the internal pressure of the bladder; the moving rod is arranged on the first connecting piece, is inserted into the first communicating cavity and is connected with the surface of the film sleeve; the urethral catheterization device has the beneficial effect that the urethral catheterization device capable of exercising urine suffocating muscles is provided.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a urinary catheterization device capable of exercising urine-holding muscles. Background Art

[0002] A urinary catheter is a tube that is inserted through the urethra into the bladder to drain urine. Made of natural rubber, silicone rubber, or polyvinyl chloride (PVC), it can be inserted through the urethra into the bladder to drain urine. After the catheter is inserted into the bladder, a balloon near the tip of the catheter secures the catheter in place, preventing it from coming out. The catheter is also connected to a urine bag to collect urine. Leaving the catheter in the bladder for extended periods allows urine to flow directly out without the need for the detrusor muscle to exert force. This prolonged insertion can cause the detrusor muscle to relax and lose its normal function. After the catheter is removed, difficulty urinating or even incontinence can occur. This phenomenon is particularly pronounced in elderly patients. Currently, a common clinical approach is to plug the urinary catheter with a flow clamp, allowing the bladder to fill and then hold urine after a period of time. This prevents the bladder muscles from losing their activity. However, this approach requires frequent observation by nursing staff, and bladder pressure cannot be monitored. Over time, this can cause discomfort to the patient and, in severe cases, lead to injury. Therefore need to design a kind of urinary catheterization device that can exercise urine-holding muscle. Summary of the Invention

[0003] In order to improve the problem that traditional urinary catheters do not exercise the patient's urinary retention muscles, the present application provides a urinary catheter device that can exercise the urinary retention muscles.

[0004] The present application provides a urinary catheter device capable of exercising the urinary retention muscle, which is arranged between a urinary catheter and a urinary drainage tube along a first direction to connect the urinary catheter and the urinary drainage tube; and comprises: A first connecting piece having a first communicating cavity communicating with the urinary catheter; a second connecting member, forming a second communicating cavity communicating with the first communicating cavity along the first direction; a valve movably disposed on the inner wall of the first communicating cavity; A membrane sleeve is arranged on the inner wall of the first communicating cavity; A pressure sensor is fixed to the end of the urinary catheter inserted into the bladder to detect the intra-bladder pressure; A moving rod is provided on the first connecting member and is inserted into the first communicating cavity and connected to the surface of the membrane sleeve; Among them, the first connecting member is fixedly connected to one end of the urinary catheter close to the urinary discharge tube; the second connecting member is fixedly arranged between the first connecting member and the urinary discharge tube along the first direction; the second connecting member is also provided with an injection port that passes through the second connecting cavity; a circular ring for loading the valve is provided in the first connecting cavity; a plurality of valves are provided, in a circular array along the circumferential direction of the circular ring, and the sides of adjacent valves are in contact with each other; the membrane sleeve is connected to the inner wall of the first connecting cavity and the circular ring along the first direction to form a flow cavity for medium circulation; at least two movable rods are provided, and are arranged relative to each other in the vertical direction along the first direction.

[0005] The setting of the movable rod can drive the membrane sleeve to deform, thereby increasing or decreasing the pressure on the bladder; thereby activating the urinary retention muscle and preventing the urinary retention muscle from losing its activity due to prolonged relaxation, which can cause urine leakage.

[0006] Optionally, a cavity is formed in the ring; The membrane sleeve forms a membrane cavity communicating with the cavity; A first electromagnet is provided in the cavity; Wherein, magnetorheological fluid is contained in the membrane cavity.

[0007] Optionally, the movable rod is slidably connected to the first connecting member; Two moving rods in opposite directions move closer to / away from each other.

[0008] Optionally, the ring is slidably arranged on the inner wall of the first communicating cavity along the first direction; An elastic member is provided between the circular ring and the inner wall of the first communicating cavity; The elastic member always exerts an elastic force on the ring to keep it away from the membrane sleeve.

[0009] Optionally, also include: A magnetic member is fixedly mounted on the moving rod; A second electromagnet is fixedly mounted on the first connecting member and is arranged opposite to the magnetic member; a reset member, disposed between the magnetic member and the second electromagnet; a flow sensor, disposed in the second communicating cavity to detect the flow of the medium in the second communicating cavity; Wherein, when the second electromagnet is energized, it can attract the magnetic member so as to move the moving rod away from the membrane sleeve.

[0010] Optionally, a limiting portion is formed on the surface of the film sleeve; A buckle corresponding to the limiting portion is provided at the end of the movable rod; The buckle is embedded in the limiting portion to limit the film sleeve in a direction perpendicular to the first direction.

[0011] Optionally, the first communicating cavity and the portion corresponding to the limiting portion form an expansion cavity; The inner diameter of the expansion cavity is larger than the inner diameter of the first communicating cavity.

[0012] Optionally, the first connecting member further comprises: A mounting ring, detachably disposed on an end of the first connecting member away from the second connecting member along the first direction; Wherein, a groove is formed on the surface of the mounting ring.

[0013] Optionally, a central processing unit is also included; The central processing unit is electrically connected to the pressure sensor to receive and process the electrical signal transmitted by the pressure sensor; the first electromagnet and the second electromagnet are both electrically connected to the central processing unit to control power off / power on of the first electromagnet and the second electromagnet; The flow sensor is electrically connected to the central processing unit to receive and analyze the electrical signal transmitted by the process sensor; Among them, the central processing unit is connected to the mobile terminal of medical staff through remote interaction to control the central processing unit.

[0014] A method for training the urinary retention muscle, applicable to the above-mentioned urinary catheterization device capable of training the urinary retention muscle, comprises the following steps: S1. Install the urinary catheter device between the urinary catheter and the urinary drainage tube, and insert one end of the urinary catheter into the bladder; connect to the central processor through the interactive system, and set the magnetism of the first electromagnet to adjust the yield strength P1 of the valve; S2: After the patient's bladder produces urine, bladder pressure begins to rise. When bladder pressure Q1 exceeds P1, urine will break open the valve and urination will begin, until Q1 is less than P1. S3. The central processing unit controls the second electromagnet to repeatedly turn on / off power. The movement of the moving rod causes the membrane sleeve to repeatedly deform and reset. The positive pressure exerted on the catheter by the deformation of the membrane sleeve can exert pressure on the bladder, while the negative pressure exerted on the catheter by the deformation of the membrane sleeve can absorb some of the liquid in the bladder. S4. During urination, the pressure sensor monitors the bladder pressure and the flow sensor detects the urination flow rate. If the pressure does not reach the normal value during urination and the flow sensor detects a decrease or stop in flow rate, the urinary catheter is determined to be blocked. At this time, the second electromagnet is activated and the steps of S3 are repeated until the pressure transmitted by the pressure sensor begins to decrease.

[0015] In summary, the present application discloses a urinary catheterization device capable of applying pressure to the bladder or maintaining a rated bladder pressure, thereby training the urine-holding muscle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a schematic diagram of a half-section of the middle part of an embodiment of the present application; Figure 32. It is an exploded schematic diagram of the urinary catheterization device in an embodiment of the present application; Figure 4 yes Figure 2 A partial enlarged view of the Figure 5 is a half-section schematic diagram of a first connecting member according to an embodiment of the present application; Figure 6 is a schematic diagram of a film sleeve according to an embodiment of the present application; Figure 7 is a schematic diagram of a ring and a valve according to an embodiment of the present application; Figure 8 1 is a schematic diagram of the installation of the first electromagnet in an embodiment of the present application; Figure 9 Schematic diagram of the mounting ring of an embodiment of the present application.

[0017] Figure numerals: 100, urinary catheter device; L1, first direction; 1, urinary catheter; 2, urinary drainage tube; 3, first connecting member; 4, second connecting member; 5, valve; 6, membrane sleeve; 7, pressure sensor; 8, moving rod; 9, first communicating cavity; 10, second communicating cavity; 11, circular ring; 12, cavity; 13, membrane cavity; 14, first electromagnet; 15, flow cavity; 16, magnetic member; 17, second electromagnet; 18, reset member; 19, flow sensor; 20, guide groove; 21, limiting part; 22, buckle; 23, expansion cavity; 24, elastic member; 25, T-slot; 26, T-block; 27, mounting ring; 28, threaded part; 29, interference part; 30, liquid inlet; 31, slot; 32, through hole; 33, boss; 34, injection port. DETAILED DESCRIPTION

[0018] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0019] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0020] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0021] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0022] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0023] Example 1 The present invention discloses a urinary catheterization device 100 for training the urinary retention muscle. The device is arranged along a first direction L1 between a urinary catheter 1 and a urinary drainage tube 2 to connect the urinary catheter 1 and the urinary drainage tube 2. The device allows the end of the urinary catheter 1 away from the urinary drainage tube 2 to be inserted into the patient's bladder. The end of the urinary catheter 1 away from the urinary drainage tube 2 can then be inserted into the patient's bladder to pass through the urinary catheter 1 along the first direction L1 and then flow through the urinary catheterization device 100 to the urinary drainage tube 2. The end of the urinary drainage tube 2 away from the urinary catheter 1 is connected to a urine bag. Figure 2 In the present application, the first direction L1L1 is the straight line direction where the first straight line is located; the urinary catheterization device 100 that can exercise the urine holding muscle includes: a first connecting member 3, a second connecting member 4, a valve 5, a membrane sleeve 6, a pressure sensor 7, and a moving rod 8.

[0024] Among them, the first connecting member 3 is fixedly arranged at the end of the catheter 1 that is not inserted into the patient's bladder, and has a first connecting cavity 9 connected to the catheter 1. The medium in the patient's bladder can flow from the catheter 1 to the first connecting cavity 9 along the first direction L1; the second connecting member 4 is arranged between the first connecting member 3 and the urinary tube 2 along the first direction L1, and forms a second connecting cavity 10 connecting the first connecting cavity 9 and the urinary tube 2 along the first direction L1; in this way, after entering the first connecting cavity 9, the medium can flow through the second connecting cavity 10 into the urinary tube 2, and then enter the urine bag through the urinary tube 2.

[0025] A circular ring 11 is provided on the inner wall of the first connecting cavity, and there are several valves 5, which are provided on the inner ring of the circular ring 11 and are evenly arrayed along the circumferential direction of the circular ring 11; in this embodiment, four valves 5 are provided as an example for repetition, and the number of valves 5 does not involve the improvement of this application. Therefore, those skilled in the art can set the number of valves 5 according to actual clinical needs; wherein, the sides of two adjacent valves 5 fit together so as to completely cover the first connecting cavity 9 under the initial condition; the valve 5 is made of liquid silicone, and when the medium flows along the first direction L1, the valve 5 can be deformed along the first direction L1 under the action of the flowing hydraulic pressure; when the medium stops flowing, the valve 5 can recover and re-cover the first connecting cavity 9; it can be understood that if the yield strength of the valve 5 is higher than the hydraulic pressure of the medium flowing through the first connecting cavity 9, a blocking effect can be achieved.

[0026] Specifically, the ring 11 forms a cavity 12, and the valve 5 forms a membrane cavity 13 connected to the cavity 12; wherein, the membrane cavity 13 is filled with magnetorheological fluid, and a first electromagnet 14 is arranged in the cavity 12; when the first electromagnet 14 is energized, the magnetism generated will change the state of the magnetorheological fluid, and the magnetorheological fluid will be changed from a Newtonian fluid with low viscosity to a Bingham fluid with high viscosity and low fluidity, and there is a corresponding relationship between the viscosity of the magnetorheological fluid and the magnetic flux; thus, when the current received by the first electromagnet 14 increases, the magnetism becomes greater, and the yield strength of the magnetorheological fluid will increase; it can be understood that the yield pressure applied by the medium flowing in the first connecting cavity 9 received by the valve 5 can be adjusted according to the intensity of the current; and the pressure of the medium on the valve 5 comes from the bladder pressure, so the present application can adjust the bladder pressure required for urination according to the patient's condition; in this way, the patient can keep the urine in a tight state when the catheter 1 is inserted; since the yield strength of the valve 5 can be changed, it can effectively prevent the urine holding muscle from losing its vitality due to long-term relaxation, thereby causing the patient to leak urine.

[0027] Specifically, a pressure sensor 7 is installed at one end of the catheter 1 inserted into the bladder to monitor bladder pressure; the pressure sensor 7 is electrically connected to the central processing unit, which receives and processes the electrical signal transmitted by the pressure sensor 7; the central processing unit is electrically connected to the first electromagnet 14 to control the current of the first electromagnet 14; after receiving the electrical signal from the pressure sensor 7, the central processing unit can feedback the specific value of the bladder pressure; in addition, after obtaining the specific value of the pressure sensor 7, the central processing unit analyzes the data and judges and adjusts the current of the first electromagnet 14.

[0028] Specifically, the membrane sleeve 6 is arranged in the first connecting cavity 9 and is located between the ring 11 and the second connecting cavity 10. The membrane sleeve 6 is connected to the inner wall of the first connecting cavity 9 and the ring 11 along the first direction L1 to form a circulation cavity 15 for medium circulation; one end of the membrane sleeve 6 is fixedly connected to the ring 11, and the other end away from the ring 11 is fixedly arranged in the first connecting cavity 9; the fixing method can be, for example, to use gluing, threaded connection, pressing pieces to lock the two ends of the membrane sleeve 6 along the first direction L1, etc. This application does not involve the fixing method of the membrane sleeve 6. Those skilled in the art can set the fixing method according to their needs, and this embodiment will not be repeated; the membrane sleeve 6 can be made of rubber, silicone, etc., which can be deformed under the action of external force and can basically recover to the state before deformation after the external force disappears; after passing through the valve 5, the medium flows through the circulation cavity 15 and into the second connecting cavity 10.

[0029] Specifically, the moving rod 8 has at least two, and the present embodiment sets two as redundant; the two moving rods 8 are relatively arranged on the first connecting member 3 and inserted into the first communicating cavity 9 and connected to the surface of the membrane sleeve 6, the moving rod 8 is slidably connected to the first connecting member 3, and the two moving rods 8 in the relative directions are close to / away from each other; in a typical embodiment, a urinary catheterization device 100 that can exercise the urinary holding muscle further includes: a magnetic member 16, a second electromagnet 17, a reset member 18, and a flow sensor 19; wherein the magnetic member 16 is fixedly arranged on the moving rod 8, and the magnetic member 16 is a permanent magnet; a magnetic member 16 is formed on the first connecting member 3 for the moving rod 8 to move The second electromagnet 17 is fixedly arranged on the inner wall of the guide groove 20 and is arranged opposite to the magnetic member 16; the reset member 18 is arranged between the magnetic member 16 and the second electromagnet 17, and the reset member 18 is a spring, which always keeps the movable rod 8 in the state of the movable rod 8 when the second electromagnet 17 is de-energized; the second electromagnet 17 can generate magnetism when energized, and according to the change of the current direction, the electromagnet generates different magnetic fields acting on the magnetic member 16; it can be understood that after changing the current direction, the magnetic field generated by the second electromagnet 17 can cause the magnetic member 16 to make a linear reciprocating movement away from / approaching the second electromagnet 17; More specifically, a limiting portion 21 is formed on the surface of the membrane sleeve 6, and the limiting portion 21 is specifically located on a radially protruding portion of the surface of the membrane sleeve 6, and the protruding portion is bent in a direction close to the moving rod 8; the limiting portion 21 is integrally formed with the membrane sleeve 6, which can effectively improve the strength between the limiting portion 21 and the membrane sleeve 6; the moving rod 8 is inserted into one end of the first connecting cavity 9 to form a buckle 22 embedded in the limiting portion 21, and gives the membrane sleeve 6 a limit in a direction perpendicular to the first direction L1; in this way, when the moving rod 8 moves in a direction away from the membrane sleeve 6, it can pull the membrane sleeve 6 to deform; because the two relative moving rods 8 can simultaneously pull the membrane sleeve 6 on both sides in the radial direction, the flow cavity 15 is deformed.

[0030] More specifically, the first communicating cavity 9 and the portion corresponding to the limiting portion 21 form an expansion cavity 23 , and the inner diameter of the expansion cavity 23 is larger than the inner diameter of the first communicating cavity 9 ; thus, sufficient space can be provided for the membrane sleeve 6 to deform.

[0031] Among them, a flow sensor 19 is set in the second communicating cavity 10 to monitor the flow of the medium flowing through the second communicating cavity 10; the flow sensor 19 is electrically connected to the central processing unit, and the central processing unit is used to receive and process the electrical signal transmitted by the flow sensor 19; specifically, when the valve 5 opens and starts to discharge, the flow sensor 19 transmits a flow signal to detect whether urination is normal, the pressure sensor 7 can monitor the bladder pressure, and the central processing unit analyzes the pressure information of the pressure sensor 7 to determine whether there is still liquid in the bladder; if the flow detector shows that the flow rate decreases and the pressure remains unchanged, it means that the catheter 1 is blocked; the central processing unit can start the second electromagnet 17, and the movement of the moving rod 8 causes the membrane sleeve 6 to deform, so that the pressure generated when the membrane sleeve 6 is deformed can act on the catheter 1; under the action of the backwash pressure, the blockage is flushed open, playing a role in clearing the blockage.

[0032] Example 2 The ring 11 is slidably arranged on the inner wall of the first connecting cavity 9 along the first direction L1, and an elastic member 24 is arranged between the ring 11 and the inner wall of the first connecting cavity 9. Specifically, the elastic member 24 is fixedly arranged at one end of the ring 11; the elastic member 24 is a spring and always gives the ring 11 an elastic force away from the membrane sleeve 6; wherein, the end of the first connecting member 3 away from the second connecting member 4 forms a T-shaped groove 25 along the first direction L1, and the outer wall of the ring 11 forms a T-shaped block 26 corresponding to the slide groove; after the T-shaped block 26 is inserted into the T-shaped groove 25, the end of the elastic member 24 away from the ring 11 can be connected with the first connecting member 3 through the arrangement of the above scheme, when the membrane sleeve 6 is deformed, the ring 11 can be pulled close to the second connecting member 4; if the valve 5 is in a completely blocked state, it can act as a piston to briefly pump and press the catheter 1; on the one hand, the obstruction can be completely sucked into the catheter 1 to clear the blockage; if the obstruction is large and cannot be completely sucked into the catheter 1, the obstruction can completely block the liquid inlet 30 at the end of the catheter 1; at this time, under the elastic action of the reset member 18, the recoil force generated by the catheter 1 can all act on the obstruction, so that the obstruction can be easily cleared.

[0033] Specifically, the first connecting member 3 further includes a mounting ring 27, which is detachably arranged at one end of the first connecting member 3 away from the second connecting member 4 along the first direction L1; wherein the mounting ring 27 includes a threaded portion 28 and a resistance portion 29; the threaded portion 28 is threadedly connected to the surface of the first connecting member 3, and the end of the mounting ring 27 forms a resistance portion 29 that can resist the circular ring 11; it can be understood that rotating the mounting ring 27 causes the mounting ring 27 to move along the first direction L1, and then the resistance portion 29 resists the circular ring 11, so that the circular ring 11 is limited in the direction away from the second connecting member 4; in addition, due to the action of the elastic member 24, the tightness between the threaded portion 28 and the first connecting member 3 can be improved to prevent loosening during use.

[0034] More specifically, grooves 31 are formed on the surface of the mounting ring 27, and the grooves 31 are evenly distributed along the circumferential direction. When the mounting ring 27 rotates and moves along the first direction L1, the portion of the mounting ring 27 where the grooves 31 are provided will expand in a direction away from the central axis of the circular ring 11 due to the squeezing of the first connecting member 3. In this way, after the first connecting member 3 is inserted into the urinary catheter 1, further rotation of the first connecting member 3 can partially expand the first connecting member 3, thereby strengthening the tightness between the first connecting member 3 and the urinary catheter 1. Similarly, when disassembling, the mounting ring 27 partially shrinks, thereby being easily separated from the urinary catheter 1.

[0035] Example 3 A through hole 32 is formed on the surface of the second connecting member 4 and extends through the second communicating cavity 10. A boss 33 that can be embedded in the through hole 32 is provided at a position opposite to the through hole 32. The boss 33 can be fixed to the second connecting member 4 by a threaded connection or by being integrally formed with the second connecting member 4. An injection port 34 corresponding to the through hole 32 is formed on the surface of the boss 33. The boss 33 can be connected to an external saline bag, so that saline can be injected to achieve the effect of bladder flushing, thereby improving adaptability.

[0036] Example 4 A method for training the urinary retention muscle, applicable to the above-mentioned urinary catheterization device capable of training the urinary retention muscle, comprises the following steps: S1. Install the urinary catheter device between the urinary catheter and the urinary drainage tube, and insert one end of the urinary catheter into the bladder; connect to the central processor via the interactive system, and set the magnetic properties of the first electromagnet to adjust the yield strength P1 of the valve; the value of P1 can be freely set by the caregiver, thereby freely adjusting the bladder pressure when the patient is holding urine; thus, the caregiver can freely adjust according to the patient's symptoms; S2: After the patient's bladder produces urine, the bladder pressure begins to rise. When the bladder pressure Q1 is greater than P1, the urine will break the valve and urination will begin until Q1 is less than P1. This ensures that the patient's bladder always holds urine, simulating the phenomenon of normal urine holding and thus exercising the urinary holding muscles. S3. The central processing unit controls the second electromagnet to repeatedly power on and off. The movement of the movable rod causes the membrane sleeve to repeatedly deform and reset. The positive pressure exerted on the catheter by the deformation of the membrane sleeve can exert pressure on the bladder, while the negative pressure exerted on the catheter by the deformation of the membrane sleeve can absorb some of the fluid in the bladder. In this way, the deformation of the membrane sleeve can increase or decrease the pressure on the bladder. This can be understood as actively tightening or relaxing the urinary retention muscle, which is equivalent to massaging the urinary retention muscle. S4. During urination, the pressure sensor monitors the bladder pressure and the flow sensor detects the urination flow rate. If the pressure does not reach the normal value during urination and the flow sensor detects a decrease or cessation of the flow rate, the urinary catheter is determined to be blocked. At this time, the second electromagnet is activated and the steps of S3 are repeated until the pressure transmitted by the pressure sensor begins to decrease. In this way, blockage can be avoided during normal urination.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0038] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A urinary catheter device for training urinary retention muscles, arranged along a first direction between a urinary catheter and a urinary drainage tube to connect the urinary catheter and the urinary drainage tube; characterized in that: include: a first connecting piece having a first communicating cavity communicating with the urinary catheter; a second connecting member, forming a second communicating cavity communicating with the first communicating cavity along the first direction; a valve movably disposed on the inner wall of the first communicating cavity; a membrane sleeve, disposed on the inner wall of the first communicating cavity; a pressure sensor fixed to the end of the urinary catheter inserted into the bladder to detect the intra-bladder pressure; a moving rod, provided on the first connecting member and inserted into the first communicating cavity and connected to the surface of the membrane sleeve; In which, the first connecting member is fixedly connected to one end of the catheter close to the urinary tube; the second connecting member is fixedly arranged between the first connecting member and the urinary tube along the first direction; the second connecting member is also provided with an injection port that passes through the second connecting cavity; a circular ring for loading the valve is provided in the first connecting cavity; the valves are provided in plurality and arranged in a circular array along the circumferential direction of the circular ring, and the sides of two adjacent valves are in contact with each other; the membrane sleeve is connected to the inner wall of the first connecting cavity and the circular ring along the first direction to form a flow cavity for medium circulation; at least two movable rods are provided, and are arranged relative to each other in the direction perpendicular to the first direction.

2. A urinary catheterization device capable of training the urinary retention muscle according to claim 1, characterized in that: A cavity is formed in the ring; The membrane sleeve forms a membrane cavity communicating with the cavity; A first electromagnet is disposed in the cavity; Wherein, there is magnetorheological fluid in the membrane cavity.

3. The urinary catheterization device for training the urinary retention muscle according to claim 1, characterized in that: The moving rod is slidably connected to the first connecting member; The two moving rods in opposite directions move closer to / away from each other.

4. The urinary catheterization device for training the urinary retention muscle according to claim 1, characterized in that: The ring is slidably arranged on the inner wall of the first communicating cavity along the first direction; An elastic member is provided between the circular ring and the inner wall of the first communicating cavity; The elastic member always exerts an elastic force on the ring to move away from the film sleeve.

5. The urinary catheterization device for training the urinary retention muscle according to claim 3, characterized in that: The urinary catheterization device capable of exercising the urinary retention muscle further comprises: A magnetic member, fixedly mounted on the movable rod; a second electromagnet fixedly mounted on the first connecting member and arranged opposite to the magnetic member; a reset member, disposed between the magnetic member and the second electromagnet; a flow sensor, disposed in the second communicating cavity to detect a flow of a medium in the second communicating cavity; Wherein, when the second electromagnet is energized, it can attract the magnetic member so that the moving rod moves away from the film sleeve.

6. The urinary catheterization device for training the urinary retention muscle according to claim 5, characterized in that: A limiting portion is formed on the surface of the film sleeve; The end of the movable rod is provided with a buckle corresponding to the limiting portion; The buckle is embedded in the limiting portion to limit the film sleeve in a direction perpendicular to the first direction.

7. The urinary catheterization device for training the urinary retention muscle according to claim 6, characterized in that: The first communicating cavity and the portion corresponding to the limiting portion form an expansion cavity; The inner diameter of the expansion cavity is larger than the inner diameter of the first communicating cavity.

8. The urinary catheterization device capable of training the urinary retention muscle according to claim 1, characterized in that: The first connecting member further comprises: a mounting ring detachably disposed on an end of the first connecting member away from the second connecting member along the first direction; Wherein, a groove is formed on the surface of the mounting ring.

9. The urinary catheterization device for training the urinary retention muscle according to any one of claim 5, characterized in that: It also includes the central processing unit; The central processing unit is electrically connected to the pressure sensor to receive and process the electrical signal transmitted by the pressure sensor; the first electromagnet and the second electromagnet are both electrically connected to the central processing unit to control power off / power on of the first electromagnet and the second electromagnet; The flow sensor is electrically connected to the central processing unit to receive and analyze the electrical signal transmitted by the flow sensor; Among them, the central processing unit is connected to the mobile terminal of medical staff through remote interaction to control the central processing unit.

10. A method for training the urinary retention muscle, characterized in that: A urinary catheterization device for exercising the urinary retention muscle according to any one of claims 1 to 9 comprises the following steps: S1. Install the urinary catheter device between the urinary catheter and the urinary drainage tube, and insert one end of the urinary catheter into the bladder; connect to the central processor through the interactive system, and set the magnetism of the first electromagnet to adjust the yield strength P1 of the valve; S2: After the patient's bladder produces urine, bladder pressure begins to rise. When bladder pressure Q1 exceeds P1, urine will break open the valve and urination will begin, until Q1 is less than P1. S3. The central processing unit controls the second electromagnet to repeatedly turn on / off power. The movement of the moving rod causes the membrane sleeve to repeatedly deform and reset. The positive pressure exerted on the catheter by the deformation of the membrane sleeve can exert pressure on the bladder, while the negative pressure exerted on the catheter by the deformation of the membrane sleeve can absorb some of the liquid in the bladder. S4. During urination, the pressure sensor monitors the bladder pressure and the flow sensor detects the urination flow rate. If the pressure does not reach the normal value during urination and the flow sensor detects a decrease or stop in flow rate, the urinary catheter is determined to be blocked. At this time, the second electromagnet is activated and the steps of S3 are repeated until the pressure transmitted by the pressure sensor begins to decrease.

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