CN117959036A - Artificial sphincter structure based on magnetic fluid - Google Patents
Artificial sphincter structure based on magnetic fluid Download PDFInfo
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- CN117959036A CN117959036A CN202410142994.4A CN202410142994A CN117959036A CN 117959036 A CN117959036 A CN 117959036A CN 202410142994 A CN202410142994 A CN 202410142994A CN 117959036 A CN117959036 A CN 117959036A
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- clamping ring
- magnetic fluid
- liquid storage
- electromagnet
- storage cavity
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- 210000005070 sphincter Anatomy 0.000 title claims abstract description 46
- 239000011553 magnetic fluid Substances 0.000 title claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 230000000968 intestinal effect Effects 0.000 claims abstract description 40
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 26
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 210000003815 abdominal wall Anatomy 0.000 description 10
- 230000006872 improvement Effects 0.000 description 6
- 210000000664 rectum Anatomy 0.000 description 6
- 210000003608 fece Anatomy 0.000 description 4
- 230000013872 defecation Effects 0.000 description 3
- 238000001727 in vivo Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 210000001072 colon Anatomy 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000001035 gastrointestinal tract Anatomy 0.000 description 2
- 238000000338 in vitro Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 208000034347 Faecal incontinence Diseases 0.000 description 1
- 206010021639 Incontinence Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 210000000436 anus Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002550 fecal effect Effects 0.000 description 1
- 239000011554 ferrofluid Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 230000037152 sensory function Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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Abstract
The invention provides an artificial sphincter structure based on magnetic fluid, which comprises a clamping ring, a liquid storage cavity and a first electromagnet; the inner wall of the clamping ring is used for being attached to the outer peripheral wall of the intestinal canal; the liquid storage cavity is arranged outside the clamping ring and communicated with the clamping ring, and magnetic fluid is stored in the cavity; the first electromagnet is arranged on the outer side of the clamping ring and is arranged opposite to the liquid storage cavity. When the first electromagnet is powered on, the magnetic fluid in the liquid storage cavity can be pulled into the clamping ring to expand so as to squeeze and close the intestinal canal, and when the first electromagnet is powered off, the clamping ring is contracted by the biological force of the intestinal canal, so that the magnetic fluid in the ring flows back to the liquid storage cavity, and the intestinal canal is automatically opened. According to the invention, the sphincter structure is redesigned based on the magnetic fluid characteristics, the first electromagnet is arranged outside the body to reduce the electric elements in the body, so that the energy consumption is reduced, the cruising ability is improved, meanwhile, the failure rate is correspondingly reduced due to the reduction of the electric elements, and the overall reliability of the sphincter structure is improved.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to an artificial sphincter structure based on magnetic fluid.
Background
The magnetic fluid is also called magnetic liquid, ferrofluid or magnetic liquid, and is a novel functional material which has the fluidity of liquid and the magnetism of solid magnetic material. The fluid is magnetically attractive in a static state, and only shows magnetism when an external magnetic field acts.
Defecation is mainly controlled by three elements, namely: (1) appropriate pressure of anal sphincter: the anal sphincter maintains proper pressure to prevent fecal outflow from the rectum; (2) storage capacity of rectum: the rectum has the functions of expanding and storing faeces, and the faeces are expanded to a certain extent, so that the faeces are easy to feel; (3) the rectum has normal sensory functions: the sense of defecation is transmitted to the brain, and defecation is performed. Once any one of the above three elements has a problem, a phenomenon of fecal incontinence is liable to occur.
Anal incontinence refers to the disorder of the ability to control bowel movement, which is one of the common diseases of anorectal surgery, and is clinically manifested mainly as uncontrollable bowel movement. In particular, in some patients after removal of the rectum and part of the colon due to the lesion, the proximal colon is sutured to the skin of the abdomen by hand to form an artificial anus, medically called an stoma, and an ostomy bag is attached to the outside of the abdominal wall to cover the intestinal canal opening to receive faeces.
The structure of the existing artificial sphincter is as shown in Chinese patent publication No. CN2448319Y, the publication date is 9/19/2001, and the utility model name is: a biofeedback type artificial pump anal sphincter device. The device comprises: the device comprises an in-vivo device and an in-vitro signal receiving and alarming device, wherein the in-vivo device comprises a biological sensing feedback unit, a fillable sleeve, a pump valve for controlling liquid filling, a liquid storage sac and a biological feedback signal transmitting unit. The device is provided with a biological sensing feedback unit, a one-way button type pump valve and a biological feedback signal transmitting unit in vivo or under the abdominal wall skin, so that more electrical components in the body, higher failure rate, higher requirement on battery endurance and poorer overall reliability are required.
Disclosure of Invention
Aiming at the defects in the prior art, the artificial sphincter structure based on the magnetic fluid provided by the invention solves the technical problems of more electrical elements, higher failure rate, higher requirement on battery endurance and poor overall reliability in the existing artificial sphincter structure.
In order to achieve the above object, the present invention is realized by the following technical scheme:
an artificial sphincter structure based on magnetic fluid, comprising:
The clamping ring is provided with an inner side wall which is used for being attached to the outer peripheral wall of the intestinal canal so as to apply pressure to the intestinal canal through the outer expansion of the inner side wall;
The liquid storage cavity is arranged at the outer side of the clamping ring and is communicated with the clamping ring, and magnetic fluid is stored in the cavity;
the first electromagnet is arranged on the outer side of the clamping ring and is arranged opposite to the liquid storage cavity.
Optionally, the artificial sphincter structure further comprises:
The pressure detection module is arranged on the inner side wall of the clamping ring and used for detecting the compression force of the inner side wall of the clamping ring to the intestinal canal when the pressure detection module is attached to the outer peripheral wall of the intestinal canal;
The control module is respectively and electrically connected with the first electromagnet and the pressure detection module and is at least used for controlling the on/off time and the running power of the first electromagnet based on the data returned by the pressure detection module;
and the information transmission module is respectively and electrically connected with the pressure detection module and the control module and is used for transmitting the data obtained by the detection of the pressure detection module to the control module.
Optionally, the artificial sphincter structure further comprises:
The second electromagnet is arranged on one side of the liquid storage cavity, which is away from the clamping ring.
Optionally, the liquid storage cavity is faced away from the clamping ring and is inwards sunken, and the second electromagnet is embedded in the liquid storage cavity sunken part towards one end of the clamping ring.
Optionally, the artificial sphincter structure further comprises:
the control valve is arranged between the clamping ring and the liquid storage cavity and is used for adjusting the communication relation between the clamping ring and the liquid storage cavity.
Optionally, the artificial sphincter structure further comprises:
The limiting assembly at least comprises two limiting plates which are symmetrically arranged, and the clamping ring is arranged between the two limiting plates.
Optionally, the artificial sphincter structure further comprises:
the inner side wall of the square shell is connected with one side, far away from the clamping ring, of the limiting plate.
Optionally, the artificial sphincter structure further comprises:
The first distance adjusting mechanism is connected between the two limiting plates and used for adjusting the interval distance between the two limiting plates.
Optionally, the artificial sphincter structure further comprises:
The second distance adjusting mechanism is arranged between the limiting plate and the square shell and is used for adjusting the interval distance between the limiting plate and the square shell.
Optionally, the artificial sphincter structure further comprises:
the power supply module is arranged on the outer side of the square shell and is electrically connected with the power utilization component arranged on the inner side of the square shell through a wire.
According to the technical scheme, the beneficial effects of the invention are as follows:
The invention provides an artificial sphincter structure based on magnetic fluid, which comprises a clamping ring, a liquid storage cavity and a first electromagnet; the inner wall of the clamping ring is used for being attached to the outer peripheral wall of the intestinal canal so as to conveniently expand outwards through the inner wall to press the intestinal canal; the liquid storage cavity is arranged at the outer side of the clamping ring and is communicated with the clamping ring, and magnetic fluid is stored in the cavity; the first electromagnet is arranged on the outer side of the clamping ring and is arranged opposite to the liquid storage cavity. The clamping ring and the liquid storage cavity are arranged under the abdominal wall skin, the clamping ring is sleeved on the periphery of the intestinal canal, then a first electromagnet is arranged under the abdominal wall skin or outside the body, the clamping ring is clamped between the first electromagnet and the liquid storage cavity, magnetic fluid in the liquid storage cavity can be pulled into the clamping ring to expand so as to squeeze and seal the intestinal canal when the first electromagnet is electrified, and when the first electromagnet is powered off, the clamping ring is contracted by the biological force back pressure of the intestinal canal, so that the magnetic fluid in the ring flows back to the liquid storage cavity, and the intestinal canal is automatically opened. The invention redesigns the sphincter structure based on the magnetic fluid characteristics, can put the first electromagnet outside the body to reduce the electric elements in the body, reduce the energy consumption, improve the cruising ability, simultaneously, the reduction of the electric elements correspondingly reduces the failure rate and improves the overall reliability of the sphincter structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic perspective view of an artificial sphincter structure based on magnetic fluid;
FIG. 2 is a cross-sectional view of an artificial sphincter structure based on magnetic fluid;
FIG. 3 is a schematic illustration of an independent arrangement of battery modules in a magnetic fluid based artificial sphincter structure;
FIG. 4 is a schematic illustration of an electromagnet in vitro setup in a magnetic fluid based artificial sphincter structure;
Reference numerals:
the device comprises a 1-square shell, a 2-clamping ring, a 3-liquid storage cavity, a 4-control valve, a 5-first electromagnet, a 6-second electromagnet, a 7-limiting plate and an 8-battery module.
Description of the embodiments
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.
Referring to fig. 1-4, the present invention provides an artificial sphincter structure based on magnetic fluid, which comprises a clamping ring 2, a liquid storage cavity 3 and a first electromagnet 5. The inner side wall of the clamping ring 2 is used for being attached to the outer peripheral wall of the intestinal canal so as to conveniently expand outwards through the inner side wall to apply pressure to the intestinal canal; the liquid storage cavity 3 is arranged outside the clamping ring 2 and is communicated with the clamping ring 2, and magnetic fluid is stored in the cavity; the first electromagnet 5 is arranged outside the clamping ring 2 and is opposite to the liquid storage cavity 3. The clamping ring 2 and the liquid storage cavity 3 are arranged under the abdominal wall skin, the clamping ring 2 is sleeved on the periphery of the intestinal canal, then a first electromagnet 5 is arranged under the abdominal wall skin or outside the body, the clamping ring 2 is clamped between the first electromagnet 5 and the liquid storage cavity 3, when the first electromagnet 5 is electrified, magnetic fluid in the liquid storage cavity 3 can be pulled into the clamping ring 2 to expand so as to squeeze and seal the intestinal canal, and when the first electromagnet 5 is powered off, the clamping ring 2 is contracted by the biological force back pressure of the intestinal canal so as to enable the magnetic fluid in the ring to flow back to the liquid storage cavity 3, and then the intestinal canal is automatically opened.
As a further improvement to the above solution, the artificial sphincter structure further includes a pressure detection module (not shown), a control module (not shown), and an information transmission module (not shown); the pressure detection module is arranged on the inner side wall of the clamping ring 2 and is used for detecting the compression force of the inner side wall of the clamping ring 2 on the intestinal canal when the pressure detection module is attached to the peripheral wall of the intestinal canal; the control module is respectively and electrically connected with the first electromagnet 5 and the pressure detection module, and is at least used for controlling the on/off time and the operation power of the first electromagnet 5 based on the data returned by the pressure detection module, and the operation power and the operation time of the first electromagnet 5 influence the adsorption force and the adsorption quantity of the magnetic fluid, thereby influencing the filling quantity of the magnetic fluid in the clamping ring 2; the information transmission module is respectively and electrically connected with the pressure detection module and the control module and is used for transmitting the data obtained by the detection of the pressure detection module to the control module. In particular, if the first electromagnet 5 is disposed outside the body, the information transmission module includes an information transmitting unit disposed inside the body and an information receiving unit disposed outside the body.
It should be noted that if the intestinal canal is kept under a relatively high pressure for a long time to keep the intestinal canal in a closed state for a long time, the blood flow of the compressed section of the intestinal canal is blocked easily, so that the blood supply at the outlet end of the intestinal canal is insufficient to cause necrosis of the canal wall, the clamping ring 2 should be intermittently pressed on the intestinal canal, i.e. the intestinal canal needs to be opened briefly or partially after being closed for a preset period of time, and the excrement is not worried about overflowing due to the short opening of the intestinal canal due to the fact that the intestinal canal outlet and the ostomy bag are connected. Preferably, the control module is further provided with a timing unit, when the surface intestinal canal wall of the strain gauge feedback data reaches the set pressure value, the timing unit starts timing, when the first preset duration is reached, the control module cuts off the power supply of the first electromagnet 5 or reduces the running power of the first electromagnet 5, and after the second preset duration is maintained, the power supply is restored or the set running power is restored, wherein the second preset duration is shorter than the first preset duration.
As a further improvement to the above solution, referring to fig. 2-4, the artificial sphincter structure further comprises a second electromagnet 6 disposed on a side of the liquid storage cavity 3 facing away from the clamping ring 2. When the intestinal canal is to be opened, the clamping ring 2 can be back-pressed by the biological force transmitted to the intestinal canal by the rectum so as to shrink the clamping ring to enable the magnetic fluid in the ring to flow back to the liquid storage cavity 3, and the magnetic fluid in the clamping ring 2 can be sucked into the liquid storage cavity 3 by arranging the second electromagnet 6. Although the magnetic fluid in the clamping ring 2 is difficult to thoroughly drain, if only a certain amount of magnetic fluid is held in the clamping ring 2, the clamping force on the intestinal tract is small, and the intestinal tract function is not basically affected. Preferably, if the electromagnet is also placed in the body, in order to reduce the distance between the second electromagnet 6 and the clamping ring 2 to enhance the magnetic attraction force, the following scheme may be adopted: the liquid storage cavity 3 is inwards sunken facing away from the clamping ring 2, and the second electromagnet 6 is embedded in the sunken position of the liquid storage cavity 3 towards one end of the clamping ring 2.
As a further improvement to the above solution, referring to fig. 1-4, the artificial sphincter structure further includes a control valve 4, where the control valve 4 is disposed between the clamping ring 2 and the liquid storage cavity 3, and is used for adjusting the communication relationship between the clamping ring 2 and the liquid storage cavity 3. When the first electromagnet 5 is started, the control valve 4 is opened to enable the clamping ring 2 to be communicated with the liquid storage cavity 3, and when the pressure value fed back by the pressure detection module reaches a set pressure value, the control valve 4 and the first electromagnet 5 can be sequentially closed, so that the purpose of saving electricity is achieved; when the intestinal canal needs to be opened or the opening state of the intestinal canal is maintained, the control valve 4 and the second electromagnet 6 can also be opened, and when the pressure value fed back by the pressure detection module is reduced to the ideal pressure value, the control valve 4 and the second electromagnet 6 can be sequentially closed.
As a further improvement to the above scheme, the artificial sphincter structure further comprises a limiting assembly, wherein the limiting assembly at least comprises two symmetrically arranged limiting plates 7, and the clamping ring 2 is arranged between the two limiting plates 7 so as to limit the expansion outward expansion direction of the clamping ring 2 through the two limiting plates 7. Preferably, the cross section of the limiting plate 7 is arched or arc-shaped to adapt to the outline of the clamping ring 2.
As a further improvement to the above scheme, the artificial sphincter structure further comprises a square shell 1, and the inner side wall of the square shell 1 is connected with one side of the limiting plate 7 away from the clamping ring 2. The clip ring 2, the pressure detection module, the liquid storage cavity 3 and other parts are contained by the loop-shaped shell 1, so that the clip ring is convenient to be placed under the abdominal wall skin. Obviously, the artificial sphincter structure should further include a power supply module 8 for supplying electric energy to internal power components (such as a pressure detection module, an information transmission module, a control valve, etc.) and having a certain cruising ability, and the power supply module 8 may be housed inside the square casing 1 or may be disposed outside the square casing 1. In particular, when the power supply module 8 is arranged inside the casing 1, it may comprise a battery-type accumulator, such as one having a endurance of at least ten years, or at least a wirelessly chargeable accumulator provided with a wireless charging technique for the external charging device. When the power supply module 8 is arranged outside the square shell 1, the power supply module 8 is arranged outside the square shell and electrically connected with the power utilization components arranged inside the square shell through wires, and the power supply module 8 arranged outside the square shell is also placed under the abdominal wall skin, and a certain safety interval is arranged between the placement position of the power supply module 8 and the placement position of the square shell 1, so that the power supply module 8 can be charged or replaced under the condition that structures such as a fistulization opening and a clamping ring are not influenced. If the existing wired charging technology or battery replacement technology is adopted, a new wound needs to be formed on the abdominal wall, and if a new wound is formed on the stoma and surrounding abdominal wall tissues, the stoma taste dyeing is extremely easy to cause, therefore, the power supply module 8 is preferably arranged at a position far away from the stoma, and the risk of the stoma taste dyeing is avoided when the power supply module 8 is charged or replaced.
As a further improvement to the above, the artificial sphincter structure further comprises a distance adjusting mechanism (not shown) for adjusting the distance between the two limiting plates 7. The distance adjusting mechanism can be connected between the two limiting plates 7, for example, a guide sliding rod and a bidirectional screw rod can be respectively arranged at two ends of the two limiting plates 7, and the distance between the two limiting plates 7 can be adjusted by screwing the bidirectional screw rod; the distance adjusting mechanism may also be disposed between the limiting plate 7 and the square casing 1, that is, the distance between the corresponding limiting plate 7 and the square casing 1 is adjusted independently, for example, a threaded rod is rotatably connected to the side of the limiting plate 7 away from the clamping ring 2, and the threaded rod penetrates through the square casing 1 and is in threaded connection with the square casing 1.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (10)
1. A magnetic fluid-based artificial sphincter structure, comprising:
The clamping ring (2) is used for being attached to the outer peripheral wall of the intestinal canal so as to conveniently expand outwards through the inner side wall to press the intestinal canal;
the liquid storage cavity (3) is arranged at the outer side of the clamping ring (2) and is communicated with the clamping ring (2), and magnetic fluid is stored in the cavity;
The first electromagnet (5) is arranged outside the clamping ring (2) and is arranged opposite to the liquid storage cavity (3).
2. The artificial sphincter structure based on magnetic fluid of claim 1, further comprising:
The pressure detection module is arranged on the inner side wall of the clamping ring (2) and used for detecting the compression force of the inner side wall of the clamping ring (2) on the intestinal canal when the pressure detection module is attached to the outer peripheral wall of the intestinal canal;
The control module is respectively and electrically connected with the first electromagnet (5) and the pressure detection module and is at least used for controlling the on/off time and the running power of the first electromagnet (5) based on the data returned by the pressure detection module;
and the information transmission module is respectively and electrically connected with the pressure detection module and the control module and is used for transmitting the data obtained by the detection of the pressure detection module to the control module.
3. The artificial sphincter structure based on magnetic fluid of claim 1, further comprising:
The second electromagnet (6) is arranged on one side of the liquid storage cavity (3) away from the clamping ring (2).
4. A magnetic fluid-based artificial sphincter structure according to claim 3, characterized in that the liquid storage cavity (3) is recessed inwards facing away from the clamping ring (2), and the second electromagnet (6) is embedded in the recess of the liquid storage cavity (3) towards one end of the clamping ring (2).
5. The artificial sphincter structure based on magnetic fluid of claim 1, further comprising:
The control valve (4) is arranged between the clamping ring (2) and the liquid storage cavity (3) and is used for adjusting the communication relation between the clamping ring (2) and the liquid storage cavity (3).
6. A magnetic fluid based artificial sphincter structure according to any one of claims 1-5, further comprising:
the limiting assembly at least comprises two limiting plates (7) which are symmetrically arranged, and the clamping ring (2) is arranged between the two limiting plates (7).
7. The artificial magnetic fluid-based sphincter structure of claim 6, further comprising:
The inner side wall of the square shell (1) is connected with one side, far away from the clamping ring (2), of the limiting plate (7).
8. The artificial magnetic fluid-based sphincter structure of claim 7, further comprising:
The first distance adjusting mechanism is connected between the two limiting plates (7) and used for adjusting the interval distance between the two limiting plates (7).
9. The artificial magnetic fluid-based sphincter structure of claim 7, further comprising:
The second distance adjusting mechanism is arranged between the limiting plate (7) and the square shell (1) and is used for adjusting the interval distance between the limiting plate (7) and the square shell (1).
10. The artificial magnetic fluid-based sphincter structure of claim 7, further comprising:
The power supply module is arranged on the outer side of the square shell (1) and is electrically connected with the power utilization components arranged on the inner side of the square shell (1) through wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410142994.4A CN117959036A (en) | 2024-02-01 | 2024-02-01 | Artificial sphincter structure based on magnetic fluid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410142994.4A CN117959036A (en) | 2024-02-01 | 2024-02-01 | Artificial sphincter structure based on magnetic fluid |
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| Publication Number | Publication Date |
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| CN117959036A true CN117959036A (en) | 2024-05-03 |
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|---|---|---|---|
| CN202410142994.4A Pending CN117959036A (en) | 2024-02-01 | 2024-02-01 | Artificial sphincter structure based on magnetic fluid |
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| Country | Link |
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| CN (1) | CN117959036A (en) |
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