CN114712030A - Magnetic fluid driven self-reset urethral valve device - Google Patents

Abstract

The invention relates to a magnetic fluid driven self-resetting urethral valve device, which comprises a shell, a driving assembly and a clamping piece, wherein the driving assembly is arranged in the shell and connected with the clamping piece, and the clamping piece is arranged in the shell and can reciprocate along a fixed direction. The drive assembly adopts the magnetic fluid part and the soft magnet, controls the opening and closing of the urethra by utilizing the deformation effect of the magnetic fluid under the action of a magnetic field, is convenient and fast to control, has high efficiency, does not need to leave an unclosed wound needing permanent maintenance on the outer side of the body surface, and prevents secondary infection and inflammation; the urethra is not provided with the hole, so that the wound muscle tissue is not infected; the components of the device are not contacted with urine, so that urinary system infection and complications are not caused; the soft non-metallic material gasket is contacted with the outer wall of the urethra, so that mechanical injury to organs cannot be caused; the closing of the inner wall of the urethra tube is utilized to realize sealing, the characteristics of physiological structures are met, and urine leakage cannot be caused.

Description

Magnetic fluid driven self-reset urethral valve device

Technical Field

The invention belongs to the field of medical instruments, relates to a magnetic fluid driven self-resetting urethral valve device, and particularly relates to a device for replacing urethral sphincter to control the opening and closing of urethra.

Background

Urinary incontinence is a common complication in clinical practice, often occurring in people of different ages and sexes, especially in women and the elderly. Urinary incontinence causes complications such as perineal dermatitis, sacrococcal dermatitis, and pressure ulcers, which not only cause discomfort to the patient, but also affect the daily life and mental health of the patient. Urinary incontinence is caused by a number of factors, the most prominent of which is urethral sphincter dysfunction or trauma. In response to urinary incontinence caused by urethral sphincter dysfunction, the clinical treatment is mainly conservative treatment and surgical treatment. Among them, conservative treatments include drug therapy with hormone replacement, exercise therapy in which the condition is alleviated or corrected by strengthening pelvic floor muscle tone, and chinese medical therapy in which the function of the bladder is improved by acupuncture, and the like. However, the above treatment is only suitable for patients with mild urinary incontinence, and the treatment effect for patients with moderate or severe urinary incontinence is poor, and surgical treatment is required. However, the treatment effect of the operation is not obvious due to various factors such as sex, age and physical constitution of the patient, and other complications such as physical trauma and infection are caused.

For patients with severe urinary incontinence, the problem of severe urinary incontinence can be solved by adopting a treatment mode of automatically controlling the urethra by the artificial urethral sphincter. An intracorporeal artificial urinary sphincter device, such as that of application No. CN202111495237.8, is characterized by a relatively simple structure, mainly divided into three parts, a fluid controller, a sealing connection member, and a locking member, without redundant devices, and relatively small volume and less surgical trauma. However, the degree of opening and closing of the urethra is not necessarily accurate, and the urethra is easily damaged due to overlocation. Simultaneously, the one end of this mode control urethra switching still installs in the body surface outside, and control mode operation is convenient inadequately and easily infects the inflammation with body surface looks junction portion.

Disclosure of Invention

In order to overcome the problems that the control of the opening and closing degree of the urethra is not accurate in the prior art, the control end of the opening and closing of the urethra is still arranged on the outer side of the body surface, the control mode is not convenient and fast to operate, and the part, connected with the body surface, of the urethra is prone to infection and inflammation, the magnetic fluid driven self-resetting urethral valve device is provided, the urethra is closed in a mode that the magnetic fluid drives the clamping piece to extrude the urethra, the physiological structure characteristics of a human body are met, and the feasibility is high. And the device is completely installed in the body, so that the infection probability is lower and the device is safer.

In order to solve the problems, the invention adopts the technical scheme that: a magnetic fluid driven self-reset urethral valve device comprises a shell, a driving assembly and a clamping piece, wherein the driving assembly is installed in the shell and connected with the clamping piece, and the clamping piece is installed in the shell and reciprocates along a fixed direction under the action of the driving assembly.

During installation, the urethra is completely wrapped by the device, the clamping piece is installed inside the device shell and is in direct contact with the urethra, the clamping piece reciprocates towards the direction close to the urethra under the action of the driving assembly, and the driving assembly is installed inside the shell and is connected with the clamping piece. The driving component can adopt other mechanical structures such as a battery, a push rod and the like; the clamping piece is driven by other mechanical structures such as an electromagnetic induction device, an electromagnet elastic piece and the like or by a strong magnetic field, a magnetic fluid and the like. When the remote control device is used, a patient can remotely control the driving device outside the body, and then the whole device is driven to work.

Preferably, the drive assembly comprises a power part and a connecting part, the power part is a soft magnet, the connecting part is a magnetic fluid part, the soft magnet is installed in the shell, and the magnetic fluid part is connected with the clamping piece. The drive assembly adopts small-size power as power portion, and when connecting portion adopted mechanical structure, the battery drive holder motion can lead to the battery power to reduce, need charge, but hardly charges it in vitro to this method requires the mechanical structure of connecting portion when guaranteeing precision and durability, still must accomplish the minimum with the volume of connecting portion, and the technological requirement is higher. When the driving assembly adopts the power part made by depending on the electromagnetic induction principle and the mechanical structure as the connecting part, the driving assembly in the body is not required to be charged, but the whole structure of the driving assembly is more complex and the volume is larger. The drive assembly adopts the soft magnet as the power portion, and when the magnetic fluid portion was as connecting portion, the soft magnet can magnetize rapidly and have strong magnetic field, and deformation takes place for the magnetic fluid portion, and after the soft magnet stopped magnetizing, demagnetization magnetic field intensity reduced rapidly, and deformation is resumeed for the magnetic fluid portion. The magnetic fluid part is connected with the clamping piece through the phenomenon that the magnetic fluid part can deform in a strong magnetic field, and the clamping piece is driven to move.

Preferably, the magnetic fluid part comprises an elastic film and a magnetic fluid, the elastic film wraps the magnetic fluid, and the magnetic fluid deforms through the change of the magnetic field. The magnetic fluid part is formed by wrapping the magnetic fluid by the elastic film, the elastic film can deform greatly, and the magnetic fluid part has the advantages of good elasticity and long service life and is arranged on the clamping piece. When the soft magnet is not magnetized, the magnetic field of the soft magnet is weaker, the force applied to the magnetic fluid is not enough to enable the elastic film to deform, the magnetic fluid part drives the clamping piece to extrude the urethra under the action of the elastic force of the elastic film, and the urethra is closed. However, after the soft magnet is magnetized, the magnetic field intensity is rapidly enhanced, so that the magnetic fluid part is subjected to a force enough to deform in the magnetic field and approaches the soft magnet, the clamping piece is driven to be far away from the urethra, and the urethra is expanded. When the soft magnet is stopped being magnetized, the soft magnet is demagnetized rapidly, the magnetic fluid part recovers deformation under the action of the elastic force of the elastic film, and the clamping piece is driven to extrude the urethra again, so that the urethra is closed again.

Preferably, the inside partition portion that is equipped with of casing, the partition portion divide into the inside inner chamber that is located the partition portion and is located the casing and the exocoel between the partition portion, is equipped with guide hole UNICOM inner chamber and exocoel on the partition portion, and the holder passes the guide hole, and restriction holder is when the drive of magnetic fluid portion moves motion the diversity of direction of motion, makes it can only carry out reciprocating motion according to a direction.

Preferably, the clamping piece comprises a head part and a tail part, the head part is arc-shaped, the tail part is long-strip-shaped or cylindrical, and the magnetic fluid part is connected with the tail part. The head of the clamping piece is arc-shaped, compared with other shapes, when the head of the arc-shaped clamping piece extrudes the urethra, the head of the clamping piece has less damage to the urethra, and the tail of the clamping piece is strip-shaped or cylindrical and is convenient to be connected with the magnetic fluid part. The head of the clamping piece is located in the inner cavity, the tail of the clamping piece penetrates through the guide hole, the magnetic fluid part is located in the outer cavity, the magnetic fluid part is prevented from being in contact with the urethra, the constraint force of the urethra on the magnetic fluid part is insufficient, and the shape uncertainty of the magnetic fluid part after deformation can be increased.

Preferably, the clamp is composed of a non-metallic material. The clamping piece is integrally made of a non-metal material instead of a metal material, and the accuracy of deformation of the magnetic fluid part according to the change of the magnetic field can be influenced because the metal material has a shielding effect on the magnetic field. The clamping piece can be made of other non-metallic materials such as ceramics or plastics.

Preferably, the head of the clamping piece is made of soft material. The head of the clamping piece is made of soft materials, and the head can flexibly enclose and press the urethra, so that the damage to the urethra is reduced to the minimum. The head of the clamping piece can be made of other soft non-metal materials such as silicon rubber or plastics.

Preferably, the clamping pieces are at least two and are distributed at equal intervals in the circumference, the magnetic fluid portions are at least two, and the magnetic fluid portions are connected with the tail portions of the clamping pieces in series to form a closed loop. The head parts of the two clamping pieces are positioned in the closed ring and are used for squeezing the urethra to close the urethra. When the magnetic fluid part is provided with one magnetic fluid part, the magnetic fluid part deforms or recovers to deform to drive the clamping piece to move in the guide hole and rotate along the guide hole, the number of the magnetic fluid parts is at least two, the magnetic fluid parts are located on two sides of the tail of the clamping piece, and when the magnetic fluid part deforms or recovers to deform, the clamping piece is driven to move in the guide hole along a fixed direction.

Preferably, the number of the clamping pieces is four, the four clamping pieces are respectively a first clamping piece, a second clamping piece, a third clamping piece and a fourth clamping piece, the partition part is provided with four guide holes, the four guide holes are arranged in a cross shape, the number of the magnetic fluid parts is four, the four magnetic fluid parts are respectively a first magnetic fluid part, a second magnetic fluid part, a third magnetic fluid part and a fourth magnetic fluid part, and the first magnetic fluid part is connected with the first clamping piece and the second clamping piece; the second magnetic fluid part is connected with the second clamping piece and the third clamping piece; the third magnetic fluid part is connected with the third clamping piece and the fourth clamping piece; the fourth magnetic fluid part is connected with the first clamping piece and the fourth clamping piece. When the magnetic field of the soft magnet increases; the four magnetic fluid parts move towards the soft magnet under the action of magnetic force generated by the soft magnet, meanwhile, elastic films of the four magnetic fluid parts deform, the thickness of the magnetic fluid parts becomes small, tension is generated on the four clamping pieces, the four clamping pieces are influenced by the tension of the four magnetic fluid films, the four clamping pieces move towards the direction far away from the urethra along the guide holes, the urethra is opened, and urine is discharged out of the body. After micturition, the soft magnet demagnetization, the magnetic field of soft magnet self weakens, and the magnetic force that four magnetic current somatic parts received reduces, restores gradually initial shape and produces thrust to four holders under the effect of elastic film restoring force, and the holder resets under the thrust effect, and the urethra is enclosed the extrusion again, and the urethra is closed. The urethra is clamped by the four clamping pieces, the four clamping pieces are in a cross shape, compared with the clamping pieces which are three or less, the clamping effect is better, the stress deformation amplitude of the magnetic fluid part connecting the two adjacent clamping pieces is not too large, and the stress of the clamping pieces is more uniform; compared with five or more than five clamping pieces, the number of the clamping pieces and the magnetic fluid parts is less, the assembly is more convenient, and the resource waste is avoided.

A magnetic fluid driven self-reset urethral valve system comprises the magnetic fluid driven self-reset urethral valve device and a wireless remote control end, wherein the wireless remote control end is a magnetic field generator. The wireless remote control end can magnetize the soft magnet in the human body from the outside of the human body, so that the magnetic field of the soft magnet becomes stronger, the magnetic fluid part moves towards the soft magnet, the clamping piece is driven to retreat, and the urethra is opened; when the wireless remote control end stops magnetizing the soft magnet in the body, the soft magnet is demagnetized rapidly, the magnetic force applied to the magnetic fluid part is not enough to enable the magnetic fluid part to move towards the soft magnet, and the magnetic fluid part drives the clamping frame to recover the initial state under the action of the restoring force of the elastic film, so that the urethra is closed. The wireless remote control end can complete the whole process of driving the opening and closing of the urethra in vitro, and an unclosed wound needing permanent maintenance does not need to be left outside the body surface, so that secondary infection and inflammation are prevented.

Compared with the prior art, the invention has the beneficial effects that: the invention is to adopt a magnetic fluid driven self-reset urethral valve device, utilize the deformation effect of magnetic fluid body under the magnetic field, can open and close through the remote control of the control end urethra in vitro, different from opening the urethral orifice with the liquid drive, adopt the end control of body surface to open and close, it is convenient to control, high in efficiency, needn't leave the unclosed wound that needs permanent maintenance outside the body surface, prevent the secondary infection from inflammation; the urethra is not provided with the hole, so that the wound muscle tissue is not infected; the components of the device are not contacted with urine, so that urinary system infection and complications are avoided; the soft non-metallic material gasket is contacted with the outer wall of the urethra, so that mechanical injury to organs cannot be caused; the closing of the inner wall of the urethra tube is utilized to realize sealing, the characteristics of physiological structures are met, and urine leakage cannot be caused.

Drawings

Fig. 1 is a schematic structural view of urethral closure of a magnetic fluid driven self-resetting urethral valve device of the invention.

Fig. 2 is a schematic diagram of the urethra opening structure of the self-resetting urethra valve device driven by magnetofluid.

Fig. 3 is a schematic structural view of the housing of the present invention.

Fig. 4 is a schematic view of the structure of the holder of the present invention.

Fig. 5 is a schematic view of the urethra dilation configuration of a magnetic fluid driven self-resetting urethral valve system of the present invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "long", "short", etc., based on the orientations or positional relationships shown in the drawings, the description is merely for convenience of description and simplification, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms described above can be understood according to specific situations by those skilled in the art.

The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:

example 1

Fig. 1-3 show an embodiment of a magnetic fluid driven self-resetting urethral valve device, which comprises a housing 1, a driving assembly and a clamping member 2, wherein the driving assembly is installed in the housing 1 and connected with the clamping member 2, and the clamping member 2 is installed in the housing 1 and can reciprocate along a fixed direction. During the installation, the device wraps up in the urethra outside completely, and holder 2 is installed at 1 inside and with urethra direct contact of device casing, and holder 2 can be close to urethral direction go up reciprocating motion, and the driving piece is installed at 1 inside and is connected with holder 2 of casing for drive holder 2 is to urethral direction motion extrusion urethra auxiliary urethra closure or drive holder to move relaxation urethra in the direction of keeping away from urethra. When the remote control device is used, a patient can remotely control the driving device outside the body, and then the whole device is driven to work.

Specifically, drive assembly includes power portion and connecting portion, and power portion is soft magnet 3, and connecting portion are magnetic current body portion 4, and soft magnet 3 is installed in casing 1, and magnetic current body portion 4 is connected with holder 2. Drive assembly adopts soft magnet 3 as power portion, and magnetic current portion 4 is as connecting portion, and soft magnet 3 can magnetize rapidly and has strong magnetic field, can take place the phenomenon of deformation through magnetic current portion 4 in strong magnetic field, is connected magnetic current portion 4 with holder 2, and magnetic current portion 4 drive holder 2 motion, and soft magnet 3 stops to magnetize the back, demagnetization rapidly, and magnetic field intensity reduces rapidly, and magnetic current portion 4 resumes deformation, drives holder 2 and resets.

The magnetic fluid part 4 comprises an elastic film and a magnetic fluid, the elastic film wraps the magnetic fluid, and the magnetic fluid deforms through magnetic field changes. The magnetic fluid part 4 is formed by wrapping magnetic fluid by an elastic film, and the magnetic fluid part 4 is arranged on the clamping piece 2. When the soft magnet 3 is not magnetized, the magnetic field of the soft magnet is weaker, the force applied to the magnetic fluid is not enough to deform the elastic film, and the magnetic fluid part 4 drives the clamping piece 2 to extrude the urethra under the action of the elastic force of the elastic film, so that the urethra is closed. However, after the soft magnet 3 is magnetized, the magnetic field intensity is rapidly enhanced, so that the magnetic fluid part 4 is subjected to a force enough to deform in the magnetic field and approaches the soft magnet 3 to drive the clamping piece 2 to be far away from the urethra, and the urethra is expanded. When the soft magnet 3 is stopped being magnetized, the soft magnet 3 is demagnetized rapidly, the magnetic fluid part 4 recovers deformation under the action of the elastic force of the elastic film, and the clamping piece 2 is driven to extrude the urethra again, so that the urethra is closed again.

Furthermore, a partition part 5 is arranged in the shell 1, the partition part 5 divides the shell 1 into an inner cavity 6 positioned in the partition part 5 and an outer cavity 7 positioned between the shell 1 and the partition part 5, a guide hole 8 is formed in the partition part 5 and is communicated with the inner cavity 6 and the outer cavity 7, and the clamping piece 2 penetrates through the guide hole 8 and can only reciprocate in one direction, so that the urethra is accurately extruded.

The working principle or working process of the embodiment is as follows: according to the invention, by adopting the principle that the magnetic fluid part 4 deforms under the action of a magnetic field, the soft magnet 3 in the shell 1 at the acting end in the body is magnetized, the magnetic field intensity of the magnetized soft magnet 3 is increased, so that the magnetic fluid part 4 connected with the clamping piece 2 is stressed in the magnetic field to deform and approach the soft magnet 3, the clamping piece 2 penetrating through the guide hole 8 on the partition part 5 is driven to move towards the direction far away from the urethra, the clamping piece stops extruding the urethra, and the urethra opens a patient to urinate. After micturition, stop to magnetize soft magnet 3, soft magnet 3 demagnetizes rapidly, and soft magnet 3 after the demagnetization is not enough to let magnetic current portion 4 take place the shape diversion soft magnet 3 and remove, and magnetic current portion 4 promotes holder 2 under the effect of self elastic film restoring force and resets, makes holder 2 extrude the urethra again, and the urethra is closed.

The beneficial effects of this embodiment: the opening and closing of the urethra are remotely controlled in vitro through the control end by utilizing the deformation effect of the magnetic fluid part under the action of the magnetic field, the control is convenient and fast, the efficiency is high, an unclosed wound needing permanent maintenance is not required to be left on the outer side of the body surface, and secondary infection and inflammation are prevented; the device is installed on the urethra without opening holes, so that the infection of wound muscle tissues is avoided; the components of the device are not contacted with urine, so that urinary system infection and complications are not caused; the soft non-metal material is contacted with the outer wall of the urethra, so that mechanical injury to organs cannot be caused; the closing of the inner wall of the urethra tube is utilized to realize sealing, the characteristics of physiological structures are met, and urine leakage cannot be caused.

Example 2

An embodiment 2 of the magnetic fluid driven self-resetting urethral valve device is based on the embodiment 1, and as shown in fig. 4, the shape and material of the clamping member 2 are further limited.

Specifically, the clamping piece 2 comprises a clamping piece head part 9 and a clamping piece tail part 10, the clamping piece head part 9 is arc-shaped, the clamping piece tail part 10 is long-strip-shaped or cylindrical, and the magnetic fluid part 4 is connected with the clamping piece tail part 10. The head part 9 of the clamping piece is arc-shaped, and the tail part 10 of the clamping piece is strip-shaped or cylindrical. The head part 9 of the holding piece is positioned in the inner cavity 6, the tail part 10 of the holding piece passes through the guide hole 8, and the magnetic fluid part 4 is positioned in the outer cavity 7.

Furthermore, the clamping piece is made of non-metal materials, and the head of the clamping piece is made of soft non-metal materials.

The working principle or working flow of the embodiment is as follows: the shape and material of the clamping piece 2 are further limited, so that the action effect is better.

The beneficial effects of this embodiment: the head part 9 of the clamping piece is arc-shaped, so that the injury to the urethra is less when the urethra is extruded; the tail part 10 of the clamping piece is long-strip-shaped or cylindrical, so that the tail part is conveniently connected with the magnetic fluid part 4, the magnetic fluid part 4 is positioned in the outer cavity 7 and is not in direct contact with the urethra, the phenomenon that the urethra does not have enough constraint force on the magnetic fluid part 4 is avoided, and the shape uncertainty of the magnetic fluid part 4 after deformation is increased; the clamping piece 2 is made of a non-metal material, and the accuracy of deformation of the magnetic fluid part 4 according to the change of the magnetic field can be influenced because the metal material has a shielding effect on the magnetic field; the head part 9 of the clamping piece is made of soft materials, and can flexibly enclose and press the urethra to reduce the damage to the urethra to the minimum.

Example 3

An embodiment 3 of the magnetic fluid driven self-resetting urethral valve device is based on the embodiment 1 or 2, and further limits the number and the positions of the guide holes 8 on the separating part 5 in the shell 1 and the numbers of the clamping pieces 2 and the magnetic fluid parts 4 as shown in fig. 1-2.

Specifically, the number of the clamping members 2 is four, and the four clamping members are respectively a first clamping member 201, a second clamping member 202, a third clamping member 203 and a fourth clamping member 204, the partition portion 5 is provided with four guide holes 8, the four guide holes 8 are arranged in a cross shape, and the number of the magnetic fluid portions 4 is four, and the four magnetic fluid portions are respectively a first magnetic fluid portion 401, a second magnetic fluid portion 402, a third magnetic fluid portion 403 and a fourth magnetic fluid portion 404. The first magnetic fluid part 401 is connected with the first clamping piece 201 and the second clamping piece 202; the second magnetic fluid part 402 is connected with the second clamping piece 202 and the third clamping piece 203; the third magnetic fluid part 403 is connected with the third clamping piece 203 and the fourth clamping piece 204; the fourth magnetic fluid portion 404 is connected to the first holding member 201 and the fourth holding member 204. When the magnetic field of the soft-magnetic body 3 increases; 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 move towards the soft magnetic body 3 under the action of a magnetic field generated by the soft magnetic body 3, meanwhile, elastic films of 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 deform, the thickness of the magnetic fluid parts becomes small, a tensile force is generated on the first clamping piece 201, the second clamping piece 202, the third clamping piece 203 and the fourth clamping piece 204, the first clamping piece 201, the second clamping piece 202, the third clamping piece 203 and the fourth clamping piece 204 move towards the direction far away from the urethra along the guide hole 8, the urethra is opened, and urine is discharged out of the body. After micturition, the soft magnet 3 demagnetizes, the magnetic field of the soft magnet 3 weakens, the magnetic force received by 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, the initial shape is gradually recovered under the action of the elastic film restoring force, the first clamping piece 201, the second clamping piece 202, the third clamping piece 203 and the fourth clamping piece 204 are driven to reset, the urethra is enclosed and extruded again, and the urethra is closed.

The working principle or working process of the embodiment is as follows: the number and the position of the guide holes 8 in the partition 5 in the housing 1, and the number of the clamper 2 and the magnetic fluid portion 4 are further defined based on the embodiment 1.

The beneficial effects of this embodiment: the urethra is clamped by the four clamping pieces 2, the four clamping pieces 2 are in a cross shape, the clamping effect is better, the stress deformation amplitude of the magnetic fluid part 4 connecting the two adjacent clamping pieces 2 is not too large, and the stress of the clamping pieces 2 is more uniform; the number of the clamping pieces 2 and the magnetic fluid parts 4 is optimal, the assembly is convenient, and the resource waste is avoided.

Example 4

An embodiment of a magnetic fluid driven self-resetting urethral valve system is based on embodiment 1, embodiment 2 and embodiment 3, and is shown in fig. 5, and comprises the magnetic fluid driven self-resetting urethral valve device of any one of the embodiments and a wireless remote control terminal 11, wherein the wireless remote control terminal 11 is a magnetic field generator. The wireless remote control end 11 can magnetize the soft magnet 3 in the self-resetting urethral valve device driven by the magnetic fluid in the human body from the outside of the human body, so that the magnetic field of the soft magnet 3 becomes stronger, and the magnetic fluid part 4 moves towards the soft magnet 3 to drive the clamping piece 2 to retreat and open the urethra; when the wireless remote control end 11 stops magnetizing the soft magnet 3, the soft magnet 3 is demagnetized rapidly, the magnetic force applied to the magnetic fluid part 4 is not enough to enable the magnetic fluid part to move towards the soft magnet 3, and the magnetic fluid part 4 drives the clamping piece 2 to recover to the initial state under the action of the restoring force of the elastic film, so that the urethra is closed.

The working principle or working process of the embodiment is as follows: the wireless remote control end 11 is adopted to realize the in vitro remote control of the soft magnet 3 in the self-reset urethral valve device driven by the magnetofluid to carry out the magnetization or stop the magnetization.

The beneficial effects of this embodiment: the wireless remote control end 11 can complete the magnetizing or stopping the magnetizing of the soft magnet 3 in the self-resetting urethral valve device driven by the in-vivo magnetic fluid in vitro, so that the urethra is opened or closed, the control end does not need to be fixed on the outer side of the body surface, an unclosed wound needing permanent maintenance is left, and secondary infection and inflammation are prevented.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This list is neither intended to be exhaustive nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a magnetic fluid driven from restoring to throne formula urethra valve device which characterized in that, includes casing (1), drive assembly and holder (2), and drive assembly installs in casing (1) and is connected with holder (2), and holder (2) are installed in casing (1) and along fixed direction reciprocating motion under drive assembly's effect.

2. A magnetic fluid driven self-resetting urethral valve device according to claim 1, characterised in that the drive assembly comprises a power section and a connecting section, the power section is a soft magnet (3), the connecting section is a magnetic fluid section (4), the soft magnet (3) is mounted in the housing (1), and the magnetic fluid section (4) is connected with the holder (2).

3. A magnetic fluid driven self-resetting urethral valve device according to claim 2, characterized in that the magnetic fluid portion (4) comprises an elastic film and a magnetic fluid, the elastic film wrapping the magnetic fluid, the magnetic fluid portion (4) being deformed by the change of the magnetic field.

4. A magnetic fluid driven self-resetting urethral valve device according to claim 2, characterized in that a partition part (5) is provided inside the housing (1), the partition part (5) divides the inside of the housing (1) into an inner chamber (6) inside the partition part (5) and an outer chamber (7) between the housing (1) and the partition part (5), a guide hole (8) is provided on the partition part (5), and the holding member (2) passes through the guide hole (8) and reciprocates along the guide hole (8).

5. A magnetic fluid driven self-resetting urethral valve device according to claim 2, characterized in that the holding member (2) comprises a holding member head portion (9) and a holding member tail portion (10), the holding member head portion (9) is circular arc shaped, the holding member tail portion (10) is elongated or cylindrical, and the magnetic fluid portion (4) is connected to the holding member tail portion (10).

6. A magnetic fluid actuated self-resetting urethral valve device according to claim 5, characterised in that the clip head (9) and the clip tail (10) are made of non-metallic material.

7. A magnetic fluid actuated self-resetting urethral valve device according to claim 6, characterised in that the holder head (9) is of a soft material.

8. A magnetic fluid actuated self-resetting urethral valve device according to any one of claims 2 to 7 characterised in that there are at least two of the holding members (2) circumferentially equidistantly spaced, there are at least two of the magnetic fluid sections (4), and the magnetic fluid sections (4) are connected in series with the holding member tail (10) to form a closed loop.

9. A self-resetting urethral valve device driven by magnetic fluid according to claim 8, wherein the number of the holding members (2) is four, and the holding members are respectively a first holding member (201), a second holding member (202), a third holding member (203) and a fourth holding member (204), the partition portion (5) is provided with four guide holes (8), the four guide holes (8) are arranged in a cross shape, the magnetic fluid portions (4) are four, and are respectively a first magnetic fluid portion (401), a second magnetic fluid portion (402), a third magnetic fluid portion (403) and a fourth magnetic fluid portion (404), and the first magnetic fluid portion (401) is connected with the first holding member (201) and the second holding member (202); the second magnetic fluid part (402) is connected with the second clamping piece (202) and the third clamping piece (203); the third magnetic fluid part (403) is connected with the third clamping piece (203) and the fourth clamping piece (204); the fourth magnetic fluid part (404) is connected with the first clamping piece (201) and the fourth clamping piece (204).

10. A magnetic fluid driven self-resetting urethral valve system, which is characterized by comprising a magnetic fluid driven self-resetting urethral valve device according to any one of claims 2 to 9 and a wireless remote control terminal (11), wherein the wireless remote control terminal (11) is a magnetic field generator.

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