A magnetic fluid driven self-resetting urethral valve device

Abstract

The present invention relates to a self-resetting urethral valve device driven by magnetic fluid, comprising a housing, a driving assembly, and a clamping member. The driving assembly is installed in the housing and connected to the clamping member. The clamping member is installed in the housing and can reciprocate along a fixed direction. The driving assembly adopts a magnetic fluid portion and a soft magnet, and utilizes the deformation effect of the magnetic fluid under the action of a magnetic field to control the opening and closing of the urethra. The control is convenient and efficient. There is no need to leave an unclosed wound on the outside of the body surface that requires permanent maintenance, thereby preventing secondary infection and inflammation. The urethra does not have a hole for installing the device, so it will not cause infection of the wound muscle tissue. The various components of the device do not come into contact with urine, so it will not cause urinary system infection and complications. A soft non-metallic material gasket contacts the outer wall of the urethra, so it will not cause mechanical damage to the organ. The sealing is achieved by closing the inner wall of the urethra tube, which conforms to the physiological structure characteristics and will not cause urine leakage.

Description

Technical Field

[0001] The present invention belongs to the field of medical devices and relates to a magnetic fluid driven self-resetting urethral valve device, in particular to a device that replaces the urethral sphincter to control the opening and closing of the urethra. Background Art

[0002] Urinary incontinence is a common clinical condition, occurring across all age groups and genders, with a particular prevalence in women and the elderly. Urinary incontinence can lead to complications such as perineal and sacrococcygeal dermatitis and pressure ulcers, causing discomfort and impacting daily life and mental well-being. Numerous factors contribute to urinary incontinence, with urethral sphincter dysfunction or trauma being a primary factor. Current clinical treatments for urinary incontinence caused by urethral sphincter dysfunction primarily focus on conservative and surgical interventions. Conservative treatments include hormone replacement therapy, exercise therapy to alleviate or correct symptoms by strengthening pelvic floor muscles, and Traditional Chinese Medicine (TCM) acupuncture to improve bladder function. However, these treatments are only suitable for mild cases of urinary incontinence and are ineffective in moderate to severe cases, necessitating surgical intervention. However, surgical treatment is ineffective due to factors such as patient gender, age, and physical condition, and can also cause physical trauma and other complications such as infection.

[0003] For patients with severe urinary incontinence, the problem of severe urinary incontinence can be solved by using an artificial urinary sphincter to control the urethra autonomously. For example, an in-vivo artificial urinary sphincter device with application number CN202111495237.8 is characterized by a relatively simple structure. It is mainly divided into three parts: a liquid controller, a sealing connector, and a locking part. There are no redundant devices, and the volume is relatively small, and the surgical trauma is small. However, this method is not necessarily accurate in controlling the opening and closing of the urethra, and it is easy to over-control and damage the urethra. At the same time, one end of the urethra that controls the opening and closing of the urethra in this way is still installed on the outside of the body surface. The control method is not convenient to operate and the part in contact with the body surface is prone to infection and inflammation. Summary of the Invention

[0004] To overcome the aforementioned problems in the prior art, such as the inaccurate control of urethral opening and closing, the fact that the control terminal for urethral opening and closing is still mounted on the outside of the body, resulting in inconvenient control and a susceptibility to infection and inflammation at the interface with the body surface, the present invention provides a magnetic fluid-driven, self-resetting urethral valve device. This device achieves urethral closure by squeezing the urethra with a magnetic fluid-driven clamp, conforming to the physiological characteristics of the human body and offering high feasibility. Furthermore, the device is fully mounted inside the body, minimizing the risk of infection and enhancing safety.

[0005] To solve the above problems, the technical solution adopted by the present invention is: a magnetic fluid-driven self-resetting urethral valve device, including a shell, a drive assembly and a clamping member, the drive assembly is installed in the shell and connected to the clamping member, the clamping member is installed in the shell and reciprocates in a fixed direction under the action of the drive assembly.

[0006] During installation, the device completely envelops the urethra. The clamp is mounted inside the device housing and in direct contact with the urethra. Driven by a drive assembly, the clamp reciprocates toward the urethra. The drive assembly is mounted inside the housing and connected to the clamp. The drive assembly can utilize other mechanical structures, such as batteries and push rods; other mechanical structures, such as electromagnetic induction devices and electromagnet elastic components; or methods such as strong magnetic fields and magnetic fluids to drive the clamp. During use, the patient can remotely control the drive assembly from outside the body, thereby driving the entire device.

[0007] Preferably, the drive assembly includes a power unit and a connecting portion, wherein the power unit is a soft magnet and the connecting portion is a magnetic fluid unit. The soft magnet is installed in the housing and the magnetic fluid unit is connected to the clamping member. When the drive assembly uses a small power supply as the power unit and the connecting portion uses a mechanical structure, the battery-driven clamping member movement will cause the battery power to decrease and need to be charged, but it is difficult to charge it in vitro, and this method requires that the mechanical structure of the connecting portion, while ensuring accuracy and durability, also minimize the volume of the connecting portion, which requires high process requirements. When the drive assembly uses a power unit and a mechanical structure made based on the principle of electromagnetic induction as the connecting portion, there is no need to charge the drive assembly in the body, but the overall structure of the drive assembly is more complicated and the volume is also larger. When the drive assembly uses a soft magnet as the power unit and the magnetic fluid unit as the connecting portion, the soft magnet can be quickly magnetized to have a strong magnetic field, and the magnetic fluid unit is deformed. After the soft magnet stops magnetizing, the magnetic field intensity is quickly demagnetized and rapidly decreases, and the magnetic fluid unit recovers its deformation. The magnetic fluid portion is deformed in a strong magnetic field, and the magnetic fluid portion is connected to the clamping part to drive the clamping part to move. This method has a simple structure, high precision, high durability and small size.

[0008] Preferably, the magnetic fluid portion includes an elastic film and a magnetic fluid, the elastic film encapsulating the magnetic fluid, which is deformed by changes in the magnetic field. The magnetic fluid portion is constructed by encapsulating the magnetic fluid with an elastic film, which allows for significant deformation and has the advantages of good elasticity and a long lifespan. The magnetic fluid portion is mounted on a clamping member. When the soft magnetic body is not magnetized, its own magnetic field is weak and insufficient to cause the force exerted on the magnetic fluid to deform the elastic film. Under the action of the elastic force of the elastic film, the magnetic fluid portion drives the clamping member to squeeze the urethra, thereby closing the urethra. However, after the soft magnetic body is magnetized, the magnetic field strength rapidly increases, causing the magnetic fluid portion to be subjected to a force sufficient to deform in the magnetic field and move toward the soft magnetic body, driving the clamping member away from the urethra, thereby opening the urethra. When magnetization of the soft magnetic body is stopped, the soft magnetic body rapidly demagnetizes, and the magnetic fluid portion, under the action of the elastic force of the elastic film, recovers its deformation, driving the clamping member to squeeze the urethra again, thereby closing the urethra again.

[0009] Preferably, a partition is provided inside the shell, which divides the interior of the shell into an inner cavity located inside the partition and an outer cavity located between the shell and the partition. A guide hole is provided on the partition to connect the inner cavity and the outer cavity. The clamp passes through the guide hole to limit the diversity of the movement direction of the clamp when it moves under the drive of the magnetic fluid part, so that it can only reciprocate in one direction.

[0010] Preferably, the clamp includes a clamp head and a clamp tail, the clamp head is in an arc shape, the clamp tail is in an elongated or cylindrical shape, and the magnetic fluid portion is connected to the clamp tail. The clamp head is in an arc shape. Compared with other shapes, the arc-shaped clamp head causes less damage to the urethra when squeezing the urethra, and the clamp tail is in an elongated or cylindrical shape, which is convenient for connection with the magnetic fluid portion. The clamp head is located in the inner cavity, the clamp tail passes through the guide hole, and the magnetic fluid portion is located in the outer cavity to prevent the magnetic fluid portion from contacting the urethra. The urethra does not have enough restraining force on the magnetic fluid portion, which will increase the uncertainty of the shape of the magnetic fluid portion after deformation.

[0011] Preferably, the clamping member is made of a non-metallic material. The clamping member is preferably made entirely of a non-metallic material rather than a metal material because metal materials shield the magnetic field and affect the accuracy of the magnetic fluid portion's deformation in response to magnetic field changes. The clamping member can also be made of other non-metallic materials such as ceramic or plastic.

[0012] Preferably, the clamp head is made of a soft material. The clamp head is made of a soft material, which can flexibly surround and squeeze the urethra, minimizing damage to the urethra. The clamp head can be made of other soft non-metallic materials such as silicone rubber or plastic.

[0013] Preferably, there are at least two clamping members, equidistantly spaced around the circumference, and at least two magnetic fluid sections, which are connected in series with the rear end of the clamping member to form a closed loop. The heads of the two clamping members are located within the closed loop and are used to squeeze the urethra and close it. When there is only one magnetic fluid section, the magnetic fluid section deforms or recovers, driving the clamping member to rotate along the guide hole when it moves within the guide hole. There are at least two magnetic fluid sections, located on both sides of the rear end of the clamping member. When the magnetic fluid section deforms or recovers, it drives the clamping member to move in a fixed direction within the guide hole.

[0014] Preferably, there are four clamping members, namely the first clamping member, the second clamping member, the third clamping member, and the fourth clamping member; the partition is provided with four guide holes, which are arranged in a cross pattern; there are four magnetic fluid sections, namely the first magnetic fluid section, the second magnetic fluid section, the third magnetic fluid section, and the fourth magnetic fluid section; the first magnetic fluid section is connected to the first clamping member and the second clamping member; the second magnetic fluid section is connected to the second clamping member and the third clamping member; the third magnetic fluid section is connected to the third clamping member and the fourth clamping member; and the fourth magnetic fluid section is connected to the first clamping member and the fourth clamping member. When the magnetic field of the soft magnetic body increases, the four magnetic fluid sections move toward the soft magnetic body under the action of the magnetic force generated by the soft magnetic body, and at the same time, the elastic films of the four magnetic fluid sections are deformed, the thickness of the magnetic fluid sections decreases, and a pulling force is generated on the four clamping members. Under the influence of the pulling force of the four magnetic fluid films, the four clamping members simultaneously move along the guide holes away from the urethra, the urethra opens, and urine is discharged from the body. After urination, the soft magnet demagnetizes, weakening its own magnetic field. The magnetic force acting on the four magnetic fluid sections decreases, and the elastic film's restoring force gradually restores them to their original shape, exerting a thrust on the four clamps. This thrust resets the clamps, re-enclosing and squeezing the urethra, closing it. Using four clamps to clamp the urethra, arranged in a cross pattern, provides a better clamping effect than using three or fewer clamps. The magnetic fluid sections connecting two adjacent clamps experience less deformation and more even force distribution. Compared to using five or more clamps, the number of clamps and magnetic fluid sections is reduced, making assembly more convenient and eliminating resource waste.

[0015] A magnetic fluid-driven, self-resetting urethral valve system comprises the aforementioned magnetic fluid-driven, self-resetting urethral valve device and a wireless remote control terminal, wherein the wireless remote control terminal is a magnetic field generator. The wireless remote control terminal can magnetize a soft magnet within the human body from outside the body, strengthening the magnetic field of the soft magnet. The magnetic fluid portion moves toward the soft magnet, driving the clamping member backward and opening the urethra. When the wireless remote control terminal stops magnetizing the soft magnet within the body, the soft magnet rapidly demagnetizes, and the magnetic force acting on the magnetic fluid portion is insufficient to cause it to move toward the soft magnet. Under the action of the restoring force of the elastic film, the magnetic fluid portion drives the clamping member to return to its initial state, closing the urethra. The wireless remote control terminal can complete the entire process of driving the urethra to open and close externally, eliminating the need to leave an unclosed wound on the outside of the body that requires permanent maintenance, thereby preventing secondary infection and inflammation.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention adopts a self-resetting urethral valve device driven by magnetic fluid, and utilizes the deformation effect of the magnetic fluid part under the action of the magnetic field to remotely control the opening and closing of the urethra through the control end outside the body. Different from using liquid to drive the opening of the urethral opening, the opening and closing is controlled by the surface end, which is convenient to control and highly efficient. There is no need to leave an unclosed wound on the outside of the body surface that requires permanent maintenance, thereby preventing secondary infection and inflammation; the urethra is not opened to install devices, so as not to cause infection of the wound muscle tissue; the various components of the device do not contact urine, so as not to cause urinary system infection and complications; a soft non-metallic material gasket is in contact with the outer wall of the urethra, so as not to cause mechanical damage to the organ; the sealing is achieved by closing the inner wall of the urethra tube, which conforms to the physiological structure characteristics and does not cause urine leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a urethra closure device of a magnetic fluid driven self-resetting urethra valve according to the present invention.

[0018] Figure 2 The present invention is a schematic structural diagram of a magnetic fluid driven self-resetting urethral valve device for urethra opening.

[0019] Figure 3 It is a structural schematic diagram of the shell of the present invention.

[0020] Figure 4 Is a schematic structural diagram of the clamping member of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the urethra opening of a magnetic fluid driven self-resetting urethral valve system of the present invention. DETAILED DESCRIPTION

[0022] 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.

[0023] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0025] Example 1

[0026] like Figure 1-3 The figure shows an embodiment of a magnetic fluid-driven self-resetting urethral valve device, comprising a housing 1, a drive assembly, and a clamp 2. The drive assembly is mounted within the housing 1 and connected to the clamp 2. The clamp 2 is mounted within the housing 1 and can reciprocate in a fixed direction. During installation, the device is completely wrapped around the outside of the urethra. The clamp 2 is mounted within the device housing 1 and in direct contact with the urethra. The clamp 2 can reciprocate in a direction close to the urethra. The drive assembly is mounted within the housing 1 and connected to the clamp 2 to drive the clamp 2 toward the urethra to squeeze the urethra and assist in urethral closure, or to drive the clamp 2 away from the urethra to relax the urethra. During use, the patient can remotely control the drive assembly from outside the body, thereby driving the entire device to operate.

[0027] Specifically, the drive assembly includes a power unit and a connection unit. The power unit is a soft magnetic body 3, and the connection unit is a magnetic fluid unit 4. The soft magnetic body 3 is installed in the housing 1, and the magnetic fluid unit 4 is connected to the clamping member 2. The drive assembly uses the soft magnetic body 3 as the power unit and the magnetic fluid unit 4 as the connection unit. The soft magnetic body 3 can be quickly magnetized to have a strong magnetic field. The magnetic fluid unit 4 will deform in the strong magnetic field. When the magnetic fluid unit 4 is connected to the clamping member 2, the magnetic fluid unit 4 drives the clamping member 2 to move. After the soft magnetic body 3 stops magnetizing, it is quickly demagnetized, the magnetic field strength decreases rapidly, and the magnetic fluid unit 4 recovers its deformation, driving the clamping member 2 to reset.

[0028] The magnetic fluid portion 4 comprises an elastic film and a magnetic fluid, wherein the elastic film encapsulates the magnetic fluid, and the magnetic fluid is deformed by changes in the magnetic field. The magnetic fluid portion 4 is constructed by encapsulating the magnetic fluid with the elastic film, and is mounted on the clamp 2. When the soft magnetic body 3 is not magnetized, its own magnetic field is weak and insufficient to deform the elastic film due to the force exerted on the magnetic fluid. Under the action of the elastic force of the elastic film itself, the magnetic fluid portion 4 drives the clamp 2 to squeeze the urethra, closing the urethra. However, after the soft magnetic body 3 is magnetized, the magnetic field intensity rapidly increases, causing the magnetic fluid portion 4 to be subjected to a force sufficient to deform in the magnetic field, and to move closer to the soft magnetic body 3, driving the clamp 2 away from the urethra, causing the urethra to open. When magnetization of the soft magnetic body 3 is stopped, the soft magnetic body 3 rapidly demagnetizes, and the magnetic fluid portion 4 recovers its deformation under the action of the elastic force of the elastic film itself, driving the clamp 2 to squeeze the urethra again, closing the urethra again.

[0029] Furthermore, a partition 5 is provided inside the shell 1, which divides the interior of the shell 1 into an inner cavity 6 located inside the partition 5 and an outer cavity 7 located between the shell 1 and the partition 5. A guide hole 8 is provided on the partition 5 to connect the inner cavity 6 and the outer cavity 7. The clamp 2 passes through the guide hole 8 so that it can only reciprocate in one direction, thereby accurately squeezing the urethra.

[0030] The working principle or workflow of this embodiment is as follows: The present invention adopts the principle that the magnetic fluid portion 4 deforms under the action of a magnetic field. By magnetizing the soft magnetic body 3 in the housing 1 at the active end in the body, the magnetic field strength of the magnetized soft magnetic body 3 increases, causing the magnetic fluid portion 4 connected to the clamp 2 to deform and move closer to the soft magnetic body 3 under the force in the magnetic field, thereby driving the clamp 2 passing through the guide hole 8 on the partition 5 to move away from the urethra. The clamp stops squeezing the urethra, and the urethra opens, allowing the patient to urinate. After urination, the magnetization of the soft magnetic body 3 is stopped, and the soft magnetic body 3 is quickly demagnetized. The demagnetized soft magnetic body 3 is not strong enough to cause the magnetic fluid portion 4 to deform and move toward the soft magnetic body 3. The magnetic fluid portion 4 pushes the clamp 2 back to its original position under the action of its own elastic film restoring force, causing the clamp 2 to squeeze the urethra again, and the urethra closes.

[0031] The beneficial effects of this embodiment are as follows: the deformation effect of the magnetic fluid portion under the action of the magnetic field is utilized to remotely control the opening and closing of the urethra through the control end outside the body, which is convenient and efficient, and does not require leaving an unclosed wound on the outside of the body surface that requires permanent maintenance, thereby preventing secondary infection and inflammation; no hole is opened in the urethra to install the device, so as not to cause infection of the wound muscle tissue; the various components of the device do not come into contact with urine, so as not to cause urinary tract infection and complications; the soft non-metallic material is in contact with the outer wall of the urethra, so as not to cause mechanical damage to the organ; the sealing is achieved by closing the inner wall of the urethra tube, which conforms to the characteristics of the physiological structure and does not cause urine leakage.

[0032] Example 2

[0033] A magnetic fluid driven self-resetting urethral valve device embodiment 2, based on embodiment 1, as Figure 4 As shown, the shape and material of the clamping member 2 are further limited.

[0034] Specifically, the clamp 2 includes a clamp head 9 and a clamp tail 10. The clamp head 9 is arc-shaped, and the clamp tail 10 is elongated or cylindrical. The magnetic fluid portion 4 is connected to the clamp tail 10. The clamp head 9 is arc-shaped, and the clamp tail 10 is elongated or cylindrical. The clamp head 9 is located in the inner cavity 6, and the clamp tail 10 passes through the guide hole 8. The magnetic fluid portion 4 is located in the outer cavity 7.

[0035] Furthermore, the clamping piece is made of non-metallic material, and the head of the clamping piece is made of soft non-metallic material.

[0036] The working principle or workflow of this embodiment is as follows: the shape and material of the clamping member 2 are further limited to achieve a better effect.

[0037] The beneficial effects of this embodiment are as follows: the head portion 9 of the clamping piece is arc-shaped, which causes less damage to the urethra when squeezing the urethra; the tail portion 10 of the clamping piece is long or cylindrical, which is convenient for connection with the magnetic fluid portion 4. The magnetic fluid portion 4 is located in the outer cavity 7 and is not in direct contact with the urethra, thereby preventing the urethra from exerting insufficient restraint on the magnetic fluid portion 4 and increasing the uncertainty of the shape of the magnetic fluid portion 4 after deformation; the clamping piece 2 is made of non-metallic material, because metal materials have a shielding effect on the magnetic field, which will affect the accuracy of the deformation of the magnetic fluid portion 4 according to the change of the magnetic field; the head portion 9 of the clamping piece is made of soft material, which can flexibly surround and squeeze the urethra, thereby minimizing the damage to the urethra.

[0038] Example 3

[0039] A magnetic fluid driven self-resetting urethral valve device embodiment 3, based on embodiment 1 or 2, as Figure 1-2 As shown, the number and position of the guide holes 8 on the partition 5 in the housing 1 and the number of the clamping members 2 and the magnetic fluid parts 4 are further limited.

[0040] Specifically, the clamping members 2 have four members, namely the first clamping member 201, the second clamping member 202, the third clamping member 203, and the fourth clamping member 204. The partition 5 has four guide holes 8 arranged in a cross pattern. The magnetic fluid sections 4 have four members, namely the first magnetic fluid section 401, the second magnetic fluid section 402, the third magnetic fluid section 403, and the fourth magnetic fluid section 404. The first magnetic fluid section 401 is connected to the first clamping member 201 and the second clamping member 202; the second magnetic fluid section 402 is connected to the second clamping member 202 and the third clamping member 203; the third magnetic fluid section 403 is connected to the third clamping member 203 and the fourth clamping member 204; and the fourth magnetic fluid section 404 is connected to the first clamping member 201 and the fourth clamping member 204. When the magnetic field of the soft magnet 3 is enhanced, the first magnetic fluid portion 401, the second magnetic fluid portion 402, the third magnetic fluid portion 403 and the fourth magnetic fluid portion 404 move toward the soft magnet 3 under the action of the magnetic field generated by the soft magnet 3. At the same time, the elastic films of the first magnetic fluid portion 401, the second magnetic fluid portion 402, the third magnetic fluid portion 403 and the fourth magnetic fluid portion 404 are deformed, and the thickness of the magnetic fluid portion becomes smaller, which generates a pulling force on the first clamping member 201, the second clamping member 202, the third clamping member 203 and the fourth clamping member 204. Under the influence of the pulling force, the first clamping member 201, the second clamping member 202, the third clamping member 203 and the fourth clamping member 204 move simultaneously along the guide hole 8 away from the urethra, the urethra opens, and urine is discharged from the body. After urination, the soft magnetic body 3 is demagnetized, and the magnetic field of the soft magnetic body 3 itself becomes weaker. The magnetic force acting on the first magnetic fluid part 401, the second magnetic fluid part 402, the third magnetic fluid part 403 and the fourth magnetic fluid part 404 is reduced. Under the action of the restoring force of the elastic film, the soft magnetic body 3 gradually returns to its original shape and drives the first clamping part 201, the second clamping part 202, the third clamping part 203 and the fourth clamping part 204 to reset. The urethra is surrounded and squeezed again, and the urethra is closed.

[0041] The working principle or workflow of this embodiment is as follows: on the basis of embodiment 1, the number and position of the guide holes 8 on the partition 5 in the shell 1 are further limited, and the number of the clamping parts 2 and the magnetic fluid parts 4 are further limited.

[0042] The beneficial effects of this embodiment are as follows: four clamping members 2 are used to clamp the urethra, and the four clamping members 2 are arranged in a cross shape, which has a better clamping effect. The magnetic fluid portion 4 connecting two adjacent clamping members 2 will not be deformed too much, and the clamping members 2 are more evenly stressed. The number of clamping members 2 and magnetic fluid portions 4 is optimal, and assembly is convenient without wasting resources.

[0043] Example 4

[0044] An embodiment of a magnetic fluid driven self-resetting urethral valve system, based on embodiment 1, embodiment 2 and embodiment 3, as shown in FIG. Figure 5As shown, the device includes a magnetic fluid-driven self-resetting urethral valve device according to any of the above-described embodiments and a wireless remote control terminal 11, which is a magnetic field generator. The wireless remote control terminal 11 can magnetize the soft magnet 3 in the magnetic fluid-driven self-resetting urethral valve device inside the human body, thereby increasing the magnetic field of the soft magnet 3 and causing the magnetic fluid portion 4 to move toward the soft magnet 3, driving the clamping member 2 backward and opening the urethra. When the wireless remote control terminal 11 stops magnetizing the soft magnet 3, the soft magnet 3 quickly demagnetizes, and the magnetic force acting on the magnetic fluid portion 4 is insufficient to cause it to move toward the soft magnet 3. Under the action of the restoring force of the elastic film, the magnetic fluid portion 4 drives the clamping member 2 to return to its initial state, closing the urethra.

[0045] The working principle or workflow of this embodiment is as follows: a wireless remote control terminal 11 is used to remotely control the magnetization or demagnetization of the soft magnetic body 3 in the self-resetting urethral valve device driven by magnetic fluid in vitro.

[0046] The beneficial effects of this embodiment are as follows: the wireless remote control terminal 11 can magnetize or stop magnetizing the soft magnet 3 in the self-resetting urethral valve device driven by magnetic fluid in the body, thereby opening or closing the urethra. There is no need to fix the control terminal on the outside of the body surface, leaving an unclosed wound that requires permanent maintenance to prevent secondary infection and inflammation.

[0047] 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. A magnetic fluid driven self-resetting urethral valve device, characterized in that: The invention comprises a housing (1), a driving assembly and a clamping member (2), wherein the driving assembly is installed in the housing (1) and is connected to the clamping member (2), and the clamping member (2) is installed in the housing (1) and reciprocates in a fixed direction under the action of the driving assembly. The driving assembly includes a power part and a connecting part, wherein the power part is a soft magnetic body (3), and the connecting part is a magnetic fluid part (4). The soft magnetic body (3) is installed in the housing (1), and the magnetic fluid part (4) is connected to the clamping member (2); the magnetic fluid part (4) includes an elastic film and a magnetic fluid, and the elastic film wraps the magnetic fluid. The magnetic fluid part (4) is deformed by a change in the magnetic field; A partition (5) is provided inside the shell (1), and the partition (5) divides the inside of the shell (1) into an inner cavity (6) located inside the partition (5) and an outer cavity (7) located between the shell (1) and the partition (5). A guide hole (8) is provided on the partition (5), and the clamping member (2) passes through the guide hole (8) and reciprocates along the guide hole (8). The clamping member (2) includes a clamping member head (9) and a clamping member tail ( 10), the clamping member head (9) is arc-shaped, the clamping member tail (10) is long strip-shaped, the magnetic fluid portion (4) is connected to the clamping member tail (10), the clamping member head (9) is located in the inner cavity (6), the magnetic fluid portion (4) is located in the outer cavity (7), there are at least two clamping members (2) and they are equidistantly distributed around the circumference, there are at least two magnetic fluid portions (4), and the magnetic fluid portion (4) and the clamping member tail (10) are connected in series to form a closed loop.

2. A magnetic fluid driven self-resetting urethral valve device according to claim 1, characterized in that: The clamping piece head (9) and the clamping piece tail (10) are made of non-metallic material.

3. A magnetic fluid driven self-resetting urethral valve device according to claim 2, characterized in that: The clamping piece head (9) is made of soft material.

4. A magnetic fluid driven self-resetting urethral valve device according to any one of claims 1 to 3, characterized in that: There are four clamping members (2), namely a first clamping member (201), a second clamping member (202), a third clamping member (203) and a fourth clamping member (204); there are four guide holes (8) on the partition (5), and the four guide holes (8) are arranged in a cross; there are four magnetic fluid parts (4), namely a first magnetic fluid part (401), a second magnetic fluid part (402), a third magnetic fluid part (403) and a fourth magnetic fluid part (404); the first magnetic fluid part (401) is provided with a plurality of guide holes (8); the guide holes (8) are arranged in a cross; The body (401) is connected to the first clamping member (201) and the second clamping member (202); the second magnetic fluid portion (402) is connected to the second clamping member (202) and the third clamping member (203); the third magnetic fluid portion (403) is connected to the third clamping member (203) and the fourth clamping member (204); and the fourth magnetic fluid portion (404) is connected to the first clamping member (201) and the fourth clamping member (204).

5. A magnetic fluid driven self-resetting urethral valve system, characterized in that: It comprises a self-resetting urethral valve device driven by a magnetic fluid according to any one of claims 1 to 4 and a wireless remote control terminal (11), wherein the wireless remote control terminal (11) is a magnetic field generator.

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