An adaptive bladder urination assisting device

Abstract

The present invention relates to the field of medical devices, and more specifically, to an adaptively adjustable bladder urination assisting device, comprising: a transceiver, a frame fixed to the pubic bone, a heating element, and a membrane covering the outer wall of the bladder, wherein the heating element is disposed in an inner wall interlayer of the membrane and is electrically connected to the transceiver, a plurality of adaptive adjustment elements are hingedly connected to the circumference of the frame, the plurality of adaptive adjustment elements are distributed around the outer wall of the bladder and conform to the outer wall of the bladder, the top portion of the adaptive adjustment element is positioned between the inner wall of the membrane and the outer wall of the bladder, the bottom end of the adaptive adjustment element is positioned outside the membrane, and an extension section is provided that abuts the urethra. The present invention can achieve dynamic control of urethral pressure, simulating the state in which normal human urethral pressure changes in real time with changes in bladder urine volume.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a self-adaptive bladder urination assisting device. Background Art

[0002] Urinary incontinence is a common urinary system disease. Although not fatal, it has a great negative impact on the patient's normal life because the patient cannot control the urination process independently. The main causes of urinary incontinence are sphincter damage or nerve damage. At present, the treatment of urinary incontinence is divided into two types according to the severity. Patients with mild urinary incontinence can undergo rehabilitation treatment such as medication or surgery to restore independent urination control; however, for patients with severe urinary incontinence, the treatment effect of the above methods is not ideal, and it is difficult to solve the problem from the root. Therefore, from an engineering perspective, the development of an artificial assisted urination device with the functions of the detrusor muscle and urethral sphincter is of great practical significance.

[0003] The prior art discloses a shape memory fiber-driven artificial detrusor system. It comprises an external high-frequency power supply, a transmitter, an implantable receiver, a driver, a bracket, a urethral valve, and a flow strip. The transmitter includes an excitation coil and a transmitting coil and is held close to the anterior abdominal wall during operation. The receiver includes a receiving coil and a loading coil and is fixed to the pubic bone. The driver is fixed to the bracket, which is also fixed to the pubic bone. The urethral valve includes a valve body and a valve core, which is mounted within the valve body and fixed to the bracket. The flow strip is connected to the driver and the valve core of the urethral valve. The system is designed to prevent wound muscle tissue infection, urinary tract infection and complications, mechanical organ damage, and urine leakage and reflux. It also features a compact structure and good compatibility with biological tissues.

[0004] However, the above scheme can only realize the opening and closing control of the urethra, and the urethra closing pressure is a constant value. It is impossible to realize the adaptive adjustment and control of the urethra closing pressure as the bladder urine volume and abdominal pressure change. Summary of the Invention

[0005] To solve the above problems, the present invention provides an adaptively adjustable bladder urination auxiliary device, which can achieve dynamic control of urethral pressure and simulate the state in which normal human urethral pressure changes in real time with changes in bladder urine volume.

[0006] To achieve the above-mentioned purpose, the present invention provides an adaptively adjustable bladder urination auxiliary device, which includes: a transceiver, a frame fixed on the pubic bone, a heating element and a coating covering the outer wall of the bladder, the heating element is arranged in the inner wall interlayer of the coating and is electrically connected to the transceiver, and a plurality of adaptive adjustment elements are hinged on the circumferential side of the frame, and the plurality of adaptive adjustment elements are distributed on the circumferential side of the outer wall of the bladder and fit with the outer wall of the bladder, the top part of the adaptive adjustment element is placed between the inner wall of the coating and the outer wall of the bladder, and the bottom end of the adaptive adjustment element is placed outside the coating and is provided with an extension section that abuts the urethra.

[0007] Furthermore, in order to prevent urine from flowing back from the bladder into the ureter during urination, a covering hole is provided on the top of the covering to allow the ureter at the top of the bladder to pass through. The covering hole is used to open and close the ureter.

[0008] Furthermore, the rack is a square frame composed of round bars, which is used to support the adaptive adjustment element.

[0009] Furthermore, both ends of each round rod in the frame are sleeved with shaft sleeves, and a mounting position is formed between the two shaft sleeves. The bottom end of the adaptive adjustment element is provided with a through hole, and the adaptive adjustment element is hinged at the mounting position through the through hole so that the adaptive adjustment element can rotate with the round rod as the axis.

[0010] Furthermore, the inner wall of the through-hole of the adaptive adjustment element is provided with a positioning groove, the end surface of the sleeve is provided with a positioning hole, and a return spring is sleeved on the round rod at the mounting position. When the adaptive adjustment element is hingedly mounted at the mounting position, the return spring is disposed within the through-hole of the adaptive adjustment element, with one end of the return spring engaging with the positioning groove and the other end engaging with the positioning hole. The return spring is used to reset the adaptive adjustment element, so that the adaptive adjustment element provides initial closing pressure on the urethra.

[0011] As one of the preferred solutions, the adaptive adjustment element is a petal-shaped structure that is adapted to the shape of the bladder, and the extension section at the bottom end of the adaptive adjustment element is an L-shaped structure, the end of the L-shaped structure abuts against the outer wall of the urethra, and is used to dynamically adjust the closing pressure of the urethra by sensing the bladder pressure in real time.

[0012] As one of the preferred solutions, in order to assist in closing the urethra when the stress is activated, a pressure element is sleeved on the outer wall of the urethra, and the pressure element is connected to a rubber tube. The rubber tube is filled with liquid working medium. One end of the rubber tube is connected and fixed to the pressure element, and the other end is connected and fixed to the inner surface of the peritoneum for real-time sensing of abdominal pressure and transmitting the abdominal pressure to the pressure element.

[0013] Furthermore, the pressure element is a cylindrical structure, and an elastic film is provided on the inner wall of the pressure element. An inner cavity is formed between the elastic film and the inner wall of the pressure element, and the inner cavity is communicated with the rubber tube. When the pressure element is sleeved on the outer wall of the urethra, the elastic film abuts against the outer wall of the urethra, and is used to open and close the urethra according to abdominal pressure.

[0014] Furthermore, an alloy tube is sleeved on the outer wall of the rubber tube to support the rubber tube.

[0015] Furthermore, the transceiver consists of an external power supply, a transmitter, and an internal receiver. The external power supply is electrically connected to the transmitter, the transmitter is connected to the internal receiver in a radio transceiver manner, and the internal receiver is electrically connected to the heating element. The heating element in the body is controlled to generate heat through external radio signals.

[0016] The working principle of the present invention at each stage:

[0017] Urine storage stage: As the urine capacity of the bladder gradually increases, the volume of the bladder expands accordingly, thereby generating an extrusion force on the adaptive adjustment element to expand outward around the bladder. Due to the rotational hinge effect of the adaptive adjustment element, when the adaptive adjustment element is pressed to rotate outward, the extension section of the bottom of the adaptive adjustment element that is in contact with the urethra will rotate in the opposite direction. At this time, the extension section rotates toward the urethra and squeezes the outer wall of the urethra, so that the pressure of the urethra closing increases accordingly with the increase of the urine capacity of the bladder, thereby achieving urethral closure.

[0018] Urination stage: Since the membrane covers the part of the adaptive adjustment element that fits the bladder, when the external power supply is energized, the transmitter transmits a signal to the receiver, and the receiver drives the heating element to generate heat, and the temperature slowly rises. The inner wall of the membrane begins to expand inward under the stimulation of the rising temperature to generate an inward compression force on the adaptive adjustment element, and the adaptive adjustment element rotates inward to compress the bladder. At this time, on the one hand, the membrane hole is reduced under the action of the compression force of the membrane, causing the ureter to be compressed and closed, preventing urine from flowing back into the kidneys; on the other hand, due to the rotation and hinge action of the adaptive adjustment element, the extension section at its bottom end will rotate in the opposite direction, so that it no longer squeezes the outer wall of the urethra, so that the closing pressure of the urethra becomes smaller, allowing the urethra to open for urination.

[0019] End of urination: The external power supply stops supplying power, the heating element stops heating, the temperature gradually decreases, the membrane stops shrinking and returns to its original shape, and the membrane hole expands, opening the ureter. After the membrane returns to its original shape, the inward compressive force exerted by the membrane on the adaptive adjustment element disappears. At this time, the adaptive adjustment element, under the action of the return spring, rotates outward, while the extension section at the bottom of the adaptive adjustment element rotates inward to once again apply an initial small closing pressure to the outer wall of the urethra, causing the urethra to narrow, thus completing bladder recovery. The above-mentioned urine storage and urination cycle then continues.

[0020] During stressful activity, when an incontinent patient engages in stressful activities such as sneezing, abdominal pressure suddenly increases, leading to a sudden increase in bladder pressure. The urethral closure pressure also increases accordingly to prevent urine leakage. At this time, the rubber tube placed on the inner surface of the peritoneum squeezes the liquid working medium inside, causing it to move toward the pressure element, expanding the inner cavity of the pressure element. This in turn squeezes the elastic membrane within the pressure element, helping to tighten the urethra. After the stressful activity ends, the liquid working medium no longer squeezes the elastic membrane within the pressure element, causing it to no longer compress the urethra.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] It can realize adaptive linkage regulation and control of bladder urine volume and urethral pressure, simulating the real-time change of normal human urethral pressure with changes in bladder urine volume. It has a compact and simple structure, high reliability and good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the auxiliary bladder urination device of the present invention;

[0024] Figure 2This is a schematic diagram of the bottom structure of the bladder assisted urination device;

[0025] Figure 3 It is a structural diagram of the rack;

[0026] Figure 4 This is a partial enlarged view of part A in the rack;

[0027] Figure 5 Schematic diagram of the structure of the return spring;

[0028] Figure 6 Schematic diagram of the structure of the adaptive regulating element;

[0029] Figure 7 It is a partial enlarged view of part B in the adaptive regulatory element;

[0030] Figure 8 This is a schematic diagram of the status of the auxiliary bladder urination device in the urine storage stage;

[0031] Figure 9 for Figure 8 The extended section at the bottom of the middle adaptive regulating element compresses the urethra to close the state;

[0032] Figure 10 This is a schematic diagram of the status of the auxiliary bladder urination device during the urination stage;

[0033] Figure 11 for Figure 10 Schematic diagram of the state where the extended section at the bottom of the middle adaptive adjustment element no longer compresses the urethra and the urethra is open;

[0034] Figure 12 This is a schematic diagram of the auxiliary bladder urination device after urination;

[0035] Figure 13 for Figure 12 Schematic diagram of the state in which the extension section at the bottom of the middle adaptive adjustment element abuts against the urethra;

[0036] Figure 14 This is a schematic diagram of the state where the pressure element closes the urethra;

[0037] Figure 15 Schematic diagram of the state of opening the urethra for the pressure element;

[0038] In the figure: external power supply 1; transmitter 2; internal receiver 3; heating element 4; ureter 5; membrane hole 6; membrane 7; bladder 8; urethra 9; pressure element 10; rubber tube 11; alloy tube 12; adaptive adjustment element 13; extension section 1301; positioning groove 1302; frame 14; sleeve 1401; positioning hole 1402; return spring 15; liquid working medium 16. DETAILED DESCRIPTION

[0039] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0040] Example 1:

[0041] like Figures 1 to 13 As shown, an adaptively adjustable auxiliary bladder urination device is provided, which includes a transceiver, a frame 14 fixed on the pubic bone, a heating element 4 and a coating 7 covering the outer wall of the bladder 8, the heating element 4 is arranged in the inner wall interlayer of the coating 7 and is electrically connected to the transceiver, and a plurality of adaptive adjustment elements 13 are hinged on the circumferential side of the frame 14, and the plurality of adaptive adjustment elements 13 are distributed on the circumferential side of the outer wall of the bladder 8 and fit with the outer wall of the bladder 8, the top part of the adaptive adjustment element 13 is placed between the inner wall of the coating 7 and the outer wall of the bladder 8, and the bottom end of the adaptive adjustment element 13 is placed outside the coating 7, and is provided with an extension section 1301 that abuts the urethra 9.

[0042] Specifically, the heating element 4 is a heating resistor wire, and the coating 7 is a temperature-sensitive block copolymer of poly (N-isopropylacrylamide) and polyethylene glycol. It is liquid at low temperatures and condenses at high temperatures, with this state change being reversible with temperature. When the heating element 4 is not operating at low temperatures, the coating 7 maintains its original spherical shape. When the heating element 4 is operating at high temperatures, the temperature slowly rises, and the coating 7 shrinks and gradually becomes smaller, while still maintaining its spherical shape.

[0043] In this embodiment, the coating 7 can also be a shape memory alloy mesh membrane or a bladder thermal insulation membrane. The shape memory alloy mesh membrane is made of nickel-titanium alloy wires woven longitudinally and transversely, and has a spherical shape. When power is applied to the high-temperature phase, the nickel-titanium alloy wires shrink longitudinally and transversely, causing the shape memory alloy mesh membrane to shrink. When power is removed and the low-temperature phase is reached, the membrane returns to its original shape.

[0044] Specifically, a membrane hole 6 of variable size is provided on the top of the membrane 7 for the ureter 5 at the top of the bladder 8 to pass through. The ureter 5 can be opened and closed by the deformation of the membrane hole 6 .

[0045] Specifically, the frame 14 is a square frame composed of round bars, which is made of 3D printing materials with good biocompatibility. Through holes are provided at both ends of the round bars, and the round bars are connected by bolts to form the square frame.

[0046] Specifically, both ends of each round rod in the frame 14 are sleeved with a detachable sleeve 1401, and the sleeve 1401 is fixed to the round rod through a keyway, so that the sleeve 1401 cannot rotate, and a mounting position is formed between the two sleeves 1401, and a through hole is provided at the bottom end of the adaptive adjustment element 13, and the adaptive adjustment element 13 is hinged at the mounting position through the through hole, so that the adaptive adjustment element 13 rotates with the round rod as the axis.

[0047] Specifically, the adaptive adjustment element 13 is made of medical alloy material, and the adaptive adjustment element 13 is a petal-shaped structure, which is adapted to the shape of the bladder 8, and the extension section 1301 at the bottom end of the adaptive adjustment element 13 is an L-shaped structure, and the end of the L-shaped structure abuts against the outer wall of the urethra 9.

[0048] Specifically, the transceiver includes: an external power supply 1, a transmitter 2, and an internal receiver 3. The external power supply 1 is electrically connected to the transmitter 2. The transmitter 2 is composed of a transmitting coil and an excitation coil for transmitting signals. The transmitter 2 is connected to the internal receiver 3 in a radio transceiver manner. The internal receiver 3 is composed of a receiving coil and a rectifier module for receiving the signal emitted by the transmitter 2. The internal receiver 3 is electrically connected to the heating element 4.

[0049] In this embodiment, if Figure 8 、 9 As shown, during the urine storage stage, as the urine capacity of the bladder 8 gradually increases, the volume of the bladder 8 expands accordingly, thereby generating a squeezing force on the adaptive adjustment element 13 to expand outward around the bladder 8. Due to the rotational hinge effect of the adaptive adjustment element 13, when the adaptive adjustment element 13 is pressed to rotate outward, the extension section 1301 at the bottom of the adaptive adjustment element 13 that is in contact with the urethra 9 will rotate in the opposite direction. At this time, the extension section 1301 rotates toward the urethra 9 and squeezes the outer wall of the urethra 9, so that the pressure of closing the urethra 9 increases accordingly with the increase of the urine capacity of the bladder 8, thereby realizing dynamic control of the pressure of the urethra 9.

[0050] In this embodiment, if Figure 10 、 11As shown, during the urination stage, when the external power source 1 supplies energy, the heating element 4 generates heat and the temperature slowly rises. The inner wall of the membrane 7 begins to expand inward under the stimulation of the temperature rise to generate an inward compression force on the adaptive adjustment element 13. The adaptive adjustment element 13 rotates inward to compress the bladder 8. At this time, on the one hand, under the action of the compression force of the membrane 7, the membrane hole 6 is reduced, causing the ureter 5 to be compressed and closed, preventing urine from flowing back into the kidney; on the other hand, due to the rotation and hinge action of the adaptive adjustment element 13, the extension section 1301 at its bottom end will rotate in the opposite direction, thereby no longer squeezing the outer wall of the urethra 9, so that the closing pressure of the urethra 9 becomes smaller, allowing the urethra 9 to open for urination.

[0051] Example 2:

[0052] This embodiment is similar to Embodiment 1, except that, in this embodiment, a positioning groove 1302 is provided on the inner wall of the through hole of the adaptive adjustment element 13, a positioning hole 1402 is provided on the end surface of one of the shaft sleeves 1401 on the round rod, and a return spring 15 is sleeved on the round rod at the installation position. When the adaptive adjustment element 13 is hingedly installed at the installation position, the return spring 15 is disposed in the through hole of the adaptive adjustment element 13, with one end of the return spring 15 engaged with the positioning groove 1302 and the other end engaged with the positioning hole 1402. The return spring 15 serves to reset the adaptive adjustment element 13.

[0053] In this embodiment, if Figure 10 、 11 As shown, the urination stage ends: the external power supply 1 stops supplying energy, the heating element 13 stops heating, the temperature gradually decreases, the membrane 7 no longer shrinks and returns to its original shape, the membrane hole 6 expands to open the ureter 5, and the bladder 8 gradually returns to its normal shape. During the recovery process, the bladder 8 gradually expands and deforms to generate an extrusion force on the adaptive adjustment element 13 to expand outward around the bladder 8, causing the adaptive adjustment element 13 to rotate outward. At this time, the extension section 1301 at the bottom of the adaptive adjustment element 13 rotates inward and again provides an initial smaller closing pressure to the outer wall of the urethra 9, causing the urethra 9 to narrow, thereby completing the recovery of the bladder 8 and completing a urine storage and urination process.

[0054] Example 3:

[0055] This embodiment is similar to the above two embodiments, except that, in this embodiment, Figure 1As shown, the outer wall of the urethra 9 is sleeved with a pressure element 10, and the pressure element 10 is connected to a rubber tube 11. The rubber tube 11 is filled with a liquid working medium 16, and the liquid working medium 16 is water or other incompressible liquid. One end of the rubber tube 11 is connected and fixed to the pressure element 10, and the other end of the rubber tube 11 is connected and fixed to the inner surface of the peritoneum to sense the abdominal pressure in real time.

[0056] Specifically, the rubber tube 11 is made of medical rubber.

[0057] Specifically, in order to convert abdominal pressure into pressure to close the urethra 9, the pressure element 10 is a cylindrical structure made of medical alloy. The inner wall of the pressure element 10 is provided with a medical elastic film. An inner cavity is formed between the elastic film and the inner wall of the pressure element 10. The inner cavity is communicated with the rubber tube 11. When the pressure element 10 is sleeved on the outer wall of the urethra 9, the elastic film abuts against the outer wall of the urethra 9.

[0058] In this embodiment, the elastic film can undergo elastic deformation and has good elasticity. Under the squeezing action of the liquid working medium 16 , the elastic film is deformed and then squeezes the urethra 9 , thereby assisting in closing the urethra 9 .

[0059] Specifically, the outer wall of the rubber tube 11 is sheathed with an alloy tube 12 . The alloy tube 12 is cylindrical, easily bendable, and made of an alloy with good medical biocompatibility, and is used to support the rubber tube 11 .

[0060] In this embodiment, when a urinary incontinence patient performs stressful activities such as sneezing, the abdominal pressure will suddenly increase, causing the pressure of the bladder 8 to suddenly increase. Under the action of the adaptive adjustment element 13, the closing pressure of the urethra 9 will also increase to avoid urine leakage.

[0061] like Figure 14 As shown, at the same time, the rubber tube 11 placed on the inner surface of the peritoneum squeezes the liquid working medium 16 inside, causing the liquid working medium 16 to move into the pressure element 10, causing the inner cavity of the pressure element 10 to expand, and then squeezing the elastic film in the pressure element 10 to press the urethra 9. After the stressful activity is over, as shown in FIG. Figure 15 As shown, the liquid working medium 16 no longer squeezes the elastic film of the pressure element 10, so that the elastic film no longer squeezes the urethra 9, thus completing the process of coping with stressful activities.

[0062] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An adaptive bladder urination assisting device, characterized in that: The invention comprises a transceiver, a frame (14) fixed on the pubic bone, a heating element (4) and a coating (7) covering the outer wall of the bladder (8), wherein the heating element (4) is arranged in the inner wall interlayer of the coating (7) and is electrically connected to the transceiver, and a plurality of adaptive adjustment elements (13) are hinged on the peripheral side of the frame (14), and the plurality of adaptive adjustment elements (13) are distributed on the peripheral side of the outer wall of the bladder (8) and fit with the outer wall of the bladder (8), and the top part of the adaptive adjustment element (13) is placed on the coating. The bottom end of the adaptive regulating element (13) is placed outside the membrane (7) and is provided with an extension section (1301) that abuts against the outer wall of the urethra (9). The top of the membrane (7) is provided with a membrane hole (6) for the ureter (5) at the top of the bladder (8) to pass through. The frame (14) is a square frame composed of multiple round rods. Both ends of each round rod in the frame (14) are sleeved and fixed with a shaft sleeve (1401), and two shaft sleeves (1401) are provided between the two shaft sleeves (1401). A mounting position is formed between the self-adaptive adjustment element (13), a through hole is provided at the bottom end of the self-adaptive adjustment element (13), and the self-adaptive adjustment element (13) is hinged at the mounting position through the through hole so that the self-adaptive adjustment element (13) rotates with the round rod as the axis, a positioning groove (1302) is provided on the inner wall of the through hole of the self-adaptive adjustment element (13), a positioning hole (1402) is provided on the end face of the sleeve (1401), and a reset spring (15) is sleeved on the round rod at the mounting position. When the self-adaptive adjustment element (13) When hingedly mounted at the mounting position, the return spring (15) is arranged in the through hole of the adaptive adjustment element (13), and one end of the return spring (15) is engaged with the positioning groove (1302), and the other end is engaged with the positioning hole (1402). The adaptive adjustment element (13) is a petal-shaped structure that is adapted to the shape of the bladder (8), and the extension section (1301) at the bottom end of the adaptive adjustment element (13) is an L-shaped structure, the end of which abuts against the outer wall of the urethra (9).

2. The self-adaptive bladder urination assisting device according to claim 1, characterized in that: The outer wall of the urethra (9) is sleeved with a pressure element (10), and the pressure element (10) is connected to a rubber tube (11). The rubber tube (11) contains a liquid working medium (16). One end of the rubber tube (11) is connected and fixed to the pressure element (10), and the other end is connected and fixed to the inner surface of the peritoneum.

3. The self-adaptive bladder urination assisting device according to claim 2, characterized in that: The pressure element (10) is a cylindrical structure. An elastic film is provided on the inner wall of the pressure element (10). An inner cavity is formed between the elastic film and the inner wall of the pressure element (10). The inner cavity is communicated with the rubber tube (11). When the pressure element (10) is sleeved on the outer wall of the urethra (9), the elastic film abuts against the outer wall of the urethra (9).

4. The self-adaptive bladder urination assisting device according to claim 2, characterized in that: The outer wall of the rubber tube (11) is sheathed with an alloy tube (12).

5. The self-adaptive bladder urination assisting device according to claim 1, characterized in that: The transceiver comprises: an external power supply (1), a transmitter (2), and an internal receiver (3); the external power supply (1) is electrically connected to the transmitter (2); the transmitter (2) is connected to the internal receiver (3) in a radio transceiver manner; and the internal receiver (3) is electrically connected to the heating element (4).

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