Electrical stimulation device

Abstract

An electric stimulation device is provided. An electric stimulation device according to one aspect of the present invention comprises: a housing inserted into the vagina of a human body and in contact with the inner wall of the vagina; an electrode disposed on the outer surface of the housing and applying electric stimulation to the inner wall of the vagina; a substrate disposed inside the housing and electrically connected to the electrode; and a battery module disposed inside the housing and electrically connected to the substrate, wherein the electrode comprises a front electrode facing forward relative to the human body and a rear electrode facing backward, and the circumferential length of the rear electrode is longer than the circumferential length of the front electrode.

Description

Technology Field

[0001] The present invention relates to an electric stimulation device. Background Technology

[0002] Urinary incontinence is a condition in which urine leaks involuntarily, wetting underwear and potentially causing social or hygienic problems. It is a very common condition of the urinary system, with approximately 40% of women in Korea experiencing it.

[0003] Although there are various treatment methods for urinary incontinence, such as pelvic floor muscle exercises, biofeedback, extracorporeal magnetic field therapy, and drug therapy, it is difficult to achieve a fundamental cure.

[0004] Fecal incontinence refers to a persistent condition in which one is repeatedly unable to control bowel movements at will. Approximately 20% of female patients with urinary incontinence in Korea also suffer from fecal incontinence.

[0005] There are various treatment methods for fecal incontinence, such as dietary therapy, medication, perineal exercises, and biofeedback, but their effectiveness is minimal.

[0006] Pelvic organ prolapse refers to a condition in which organs such as the uterus, bladder, and rectum sag downward or protrude outward as the muscles and ligaments supporting the pelvis weaken. It is estimated that 30% of adult women in Korea suffer from this condition, and the number of patients continues to increase due to the aging trend.

[0007] Treatment for pelvic organ prolapse required separate surgery, and there were problems such as a high recurrence rate and scarring. Prior art literature

[65535] Published Patent Application No. 10-2014-0075580 (June 19, 2014) The problem to be solved

[0008] The problem that the present invention aims to solve is to provide an electrical stimulation device capable of preventing and treating urinary incontinence by stimulating the muscles surrounding the urethra located in front of the vagina.

[0009] In addition, the problem that the present invention aims to solve is to provide an electrical stimulation device capable of preventing and treating fecal incontinence by stimulating the muscles located at the posterior end of the vagina.

[0010] In addition, the problem that the present invention aims to solve is to provide an electrical stimulation device capable of preventing and treating pelvic organ prolapse by stimulating the pelvic floor muscles. means of solving the problem

[0011] An electric stimulation device according to one aspect of the present invention for achieving the above objective comprises a housing inserted into the vagina of a human body and in contact with the inner wall of the vagina, an electrode disposed on the outer surface of the housing and applying electric stimulation to the inner wall of the vagina, a substrate disposed inside the housing and electrically connected to the electrode, and a battery module disposed inside the housing and electrically connected to the substrate.

[0012] In this case, the electrode includes a front electrode facing forward relative to the human body and a rear electrode facing backward, and the circumferential length of the rear electrode may be longer than the circumferential length of the front electrode.

[0013] Through this, urinary incontinence can be prevented and treated by stimulating the muscles surrounding the urethra located in front of the vagina, and fecal incontinence can be prevented and treated by stimulating the muscles located behind the vagina.

[0014] Additionally, the housing may be positioned closer to the entrance of the vagina than the uterus positioned above the vagina.

[0015] Through this, pelvic floor muscles can be stimulated to prevent and treat pelvic organ prolapse.

[0016] In addition, assuming that the direction toward the front of the human body relative to the center area of ​​the housing is 0°, the rear electrode can be placed in an area between 90° and 270°.

[0017] In addition, the rear electrode may include a plurality of rear electrodes spaced apart in the circumferential direction.

[0018] In addition, the plurality of rear electrodes may include first to third electrodes spaced apart in the circumferential direction.

[0019] In this case, the substrate may include a first straight section facing the first electrode, a second straight section facing the second electrode, a third straight section facing the third electrode, a first bent section connecting the first straight section and the second straight section, and a second bent section connecting the second straight section and the third straight section.

[0020] In addition, the housing includes an electrode groove formed on the outer surface, and the front electrode and the rear electrode can be placed in the electrode groove.

[0021] Additionally, it may further include a first support member disposed on the inner surface of the housing to support the rear electrode, and a connecting member extending from the first support member toward the center of the housing to be coupled with the substrate.

[0022] Additionally, it may further include a second support member disposed on the inner surface of the housing to support the front electrode, and a coupling member protruding from the second support member toward the center of the housing to be coupled with the battery module.

[0023] Additionally, the battery module may include a battery holder extending in a circumferential direction, a plurality of batteries disposed in the battery holder and spaced apart in a circumferential direction, and a plurality of connection terminals disposed between the plurality of batteries.

[0024] In this case, the battery holder may include a battery mounting groove formed in the shape of a coin for seating the battery, and a connection terminal mounting groove formed in the shape of a 'U' or 'V' for seating the connection terminal. Effects of the invention

[0025] Through this embodiment, an electrical stimulation device capable of preventing and treating urinary incontinence can be provided by stimulating the muscles surrounding the urethra located in front of the vagina.

[0026] In addition, through this embodiment, an electrical stimulation device capable of preventing and treating fecal incontinence by stimulating the muscles located at the rear of the vagina can be provided.

[0027] In addition, through this embodiment, an electrical stimulation device capable of preventing and treating pelvic organ prolapse by stimulating the pelvic floor muscles can be provided. Brief explanation of the drawing

[0028] FIG. 1 is a perspective view of an electric stimulation device according to one embodiment of the present invention. FIG. 2 is an exploded perspective view of an electric stimulation device according to one embodiment of the present invention. FIG. 3 is a drawing of an electric stimulation device according to one embodiment of the present invention with the housing removed. FIG. 4 is a drawing of an electric stimulation device according to one embodiment of the present invention with the housing and part of the battery holder removed. FIG. 5 is a perspective view of the housing of an electric stimulation device according to one embodiment of the present invention. FIG. 6 is a perspective view of an electrode of an electric stimulation device according to one embodiment of the present invention. FIG. 7 is a perspective view of a substrate of an electric stimulation device according to one embodiment of the present invention. FIG. 8 is a perspective view of a battery holder of an electric stimulation device according to one embodiment of the present invention. FIG. 9 is a perspective view of a battery and a connection terminal of an electric stimulation device according to one embodiment of the present invention. Figure 10 is a cross-sectional view of the female body. Figure 11 is a diagram showing the muscles near the vagina and urethra of a woman's body. FIG. 12 is a perspective view of a first modified example of an electric stimulation device according to one embodiment of the present invention. FIG. 13 is an exploded perspective view of a first modified example of an electric stimulation device according to one embodiment of the present invention. FIG. 14 is a drawing of a first modified example of an electric stimulation device according to one embodiment of the present invention with the housing removed. FIG. 15 is a drawing in which a housing and a part of a battery holder are removed in a first modified example of an electric stimulation device according to one embodiment of the present invention. FIG. 16 is a perspective view of the housing of a first modified example of an electric stimulation device according to one embodiment of the present invention. FIG. 17 is a perspective view of an electrode of a first modified example of an electric stimulation device according to one embodiment of the present invention. FIG. 18 is a perspective view of a substrate of a first modified example of an electric stimulation device according to one embodiment of the present invention. FIG. 19 is a perspective view of a battery holder of a first modified example of an electric stimulation device according to one embodiment of the present invention. FIG. 20 is a perspective view of a battery and a connection terminal of a first modified example of an electric stimulation device according to one embodiment of the present invention. FIG. 21 is a second modified example of an electric stimulation device according to one embodiment of the present invention. FIG. 22 is a third modified example of an electric stimulation device according to one embodiment of the present invention. FIGS. 23 to 25 are experimental examples of an electric stimulation device according to one embodiment of the present invention. FIGS. 26 to 30 are graphs summarizing experimental examples of an electric stimulation device according to one embodiment of the present invention. FIGS. 31 to 36 are graphs showing the effects of an electric stimulation device according to one embodiment of the present invention on human body factors. Specific details for implementing the invention

[0029] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0030] However, the technical concept of the present invention is not limited to some of the described embodiments but can be implemented in various different forms, and within the scope of the technical concept of the present invention, one or more of the components among the embodiments may be selectively combined or substituted.

[0031] In addition, terms used in the embodiments of the present invention (including technical and scientific terms) may be interpreted in a sense that is generally understood by those skilled in the art to which the present invention belongs, unless explicitly and specifically defined otherwise. Terms that are commonly used, such as terms defined in advance, may be interpreted in consideration of their meaning in the context of the relevant technology.

[0032] Furthermore, the terms used in the embodiments of the present invention are for the purpose of describing the embodiments and are not intended to limit the present invention.

[0033] In this specification, the singular form may include the plural form unless specifically stated otherwise in the text, and when described as "at least one of A and B and C (or more than one)," it may include one or more of all combinations that can be formed from A, B, and C.

[0034] In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the embodiments of the present invention. These terms are used merely to distinguish the components from other components and are not intended to limit the essence, order, or sequence of the components.

[0035] And, where it is stated that a component is 'connected', 'combined', or 'connected' to another component, this may include not only cases where the component is directly 'connected', 'combined', or 'connected' to the other component, but also cases where it is 'connected', 'combined', or 'connected' due to another component located between the component and the other component.

[0036] Furthermore, when described as being formed or placed "above" or "below" each component, "above" or "below" includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or placed between the two components. Additionally, when expressed as "above" or "below," it may include the meaning of a downward direction as well as an upward direction relative to a single component.

[0037] The present invention will be described in more detail below with reference to the attached drawings.

[0038] FIG. 1 is a perspective view of an electric stimulation device according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of an electric stimulation device according to an embodiment of the present invention. FIG. 3 is a drawing with the housing removed from an electric stimulation device according to an embodiment of the present invention. FIG. 4 is a drawing with the housing and a part of the battery holder removed from an electric stimulation device according to an embodiment of the present invention. FIG. 5 is a perspective view of the housing of an electric stimulation device according to an embodiment of the present invention. FIG. 6 is a perspective view of the electrode of an electric stimulation device according to an embodiment of the present invention. FIG. 7 is a perspective view of the substrate of an electric stimulation device according to an embodiment of the present invention. FIG. 8 is a perspective view of the battery holder of an electric stimulation device according to an embodiment of the present invention. FIG. 9 is a perspective view of the battery and connection terminal of an electric stimulation device according to an embodiment of the present invention.

[0039] Referring to FIGS. 1 to 9, an electric stimulation device (10) according to one embodiment of the present invention may include a housing (100), an electrode (200), a substrate (300), and a battery module (400, 500, 600), but may be implemented excluding some of the configurations and not excluding additional configurations.

[0040] The electric stimulation device (10) can be inserted into the human body non-invasively. The electric stimulation device (10) can be inserted into the vagina (20) of a woman. The electric stimulation device (10) can come into contact with the inner wall (22) of the vagina (20). The electric stimulation device (10) can stimulate the muscles surrounding the vagina (20) by applying electric stimulation inside the vagina (20), causing them to contract. Through this, the muscles surrounding the vagina (20) develop, thereby preventing and treating urinary incontinence, fecal incontinence, and pelvic organ prolapse, or alleviating symptoms.

[0041] The housing (100) can form the exterior of the electric stimulation device (10). The housing (100) can be formed in a ring shape. The housing (100) can be formed in a donut shape. Not limited thereto, the housing (100) can be formed in various shapes suitable for non-invasive insertion into the vagina, such as a disc shape, a sphere shape, a cylinder shape, a rugby ball shape, or a banana shape. The housing (100) can be formed from an elastic material. For example, the housing (100) can be formed from a silicone material.

[0042] The housing (100) may be formed from a material that is harmless to the human body. Alternatively, the housing (100) may be coated with a material that is harmless to the human body. For example, it may be formed from a biocompatible material such as EVA copolymer (Ethylene Vinyl Acetate Copolymer). Alternatively, it may exhibit excellent bonding characteristics by being formed from various materials such as PE (Poly Ethylene), PS (Poly Styrene), PET (Poly Ethylene Terephthalate), PVC (Poly Vinyl Chloride), PVDC (Poly Vinylidene Chloride), PP (Poly Prophylene), and PVA (Poly Vinyl Alcohol), which are plastic materials with high transparency and elasticity.

[0043] The housing (100) may include electrode grooves (110, 150). The electrode grooves (110, 150) may be formed on the outer surface of the housing (100).

[0044] The electrode grooves (110, 150) may include a plurality of electrode grooves (110, 150) spaced apart from each other. For example, the plurality of electrode grooves (110, 150) may include a rear electrode groove (110) and a front electrode groove (150) formed in a radially outer region of the outer surface of the housing (100). A rear electrode (202) may be disposed in the rear electrode groove (110), and a front electrode (250) may be disposed in the front electrode groove (150). Through this, space efficiency can be improved, and the physical foreign object sensation caused by the electrode (200) protruding outside the housing (100) can be reduced.

[0045] The housing (100) may be positioned closer to the entrance of the vagina (20) than the uterus positioned above the vagina (20). Here, the entrance of the vagina (20) can be interpreted as the point connecting the inside of the vagina (20) to the outside of the human body. Through this, the pelvic floor muscles positioned below the pelvis can be stimulated to prevent and treat pelvic organ prolapse or to alleviate the symptoms of pelvic organ prolapse.

[0046] The electrode (200) may be placed in the housing (100). The electrode (200) may be placed on the outer surface of the housing (100). Specifically, the electrode (200) may be placed in the radially outer region of the outer surface of the housing (100). The electrode (200) may come into contact with the inner wall (22) of the vagina (20). The electrode (200) may apply electrical stimulation to the inner wall (22) of the vagina (20). Through this, the muscles around the vagina (20) may contract.

[0047] The electrode (200) may include a plurality of electrodes (210, 250) spaced apart from each other. The plurality of electrodes (210, 250) may include a rear electrode (202) and a front electrode (250) disposed in a radially outer region among the outer surfaces of the housing (100). The rear electrode (202) and the front electrode (250) may be referred to as 'outer electrodes'.

[0048] The rear electrode (202) can be positioned on the outer surface of the housing (100) at the rear relative to the human body. Assuming that the direction facing forward relative to the center area of ​​the housing (100) is 0°, the rear electrode (202) can be positioned between 90° and 270°. Through this, the muscles (30) positioned at the rear of the vagina (20) can be stimulated and contracted, thereby preventing and treating fecal incontinence or alleviating symptoms of fecal incontinence.

[0049] Additionally, the front electrode (250) can be positioned on the outer surface of the housing (100) in front of the human body. Specifically, assuming that the direction facing forward of the human body relative to the center area of ​​the housing (100) is 0°, the front electrode (250) can be positioned at the 0° position. Through this, the muscle (40) surrounding the urethra, which is positioned in front of the vagina (20), can be stimulated and contracted, thereby preventing and treating urinary incontinence or alleviating symptoms of urinary incontinence.

[0050] Here, "front" relative to the human body can be interpreted as the direction directly in front of a person when standing, and "rear" relative to the human body can be interpreted as the opposite direction of the direction directly in front of a person when standing.

[0051] The circumferential length of the rear electrode (202) can be formed to be longer than the circumferential length of the front electrode (250). Through this, the muscle (40) surrounding the urethra, which is narrowly positioned in front of the vagina (20), can be efficiently stimulated to prevent and treat urinary incontinence, and the muscle (30) which is widely positioned in the rear of the vagina (20) can be efficiently stimulated to prevent and treat fecal incontinence.

[0052] The rear electrode (202) may be supported by a first support member (212). The first support member (212) may be disposed on the inner surface of the housing (100). The first to third connecting members (214, 224, 234) may extend from the first support member (212) toward the center of the housing (100). The first to third connecting members (214, 224, 234) may be coupled to a substrate (300). For example, the first to third connecting members (214, 224, 234) may be screw-coupled to the substrate (300), but the method of connecting the first to third connecting members (214, 224, 234) to the substrate (300) is not limited thereto and may be changed in various ways.

[0053] The first to third connecting members (214, 224, 234) may be spaced apart from each other in the circumferential direction. Although the present specification describes three connecting members (214, 224, 234) as an example, it is not limited thereto, and the number of connecting members (214, 224, 234) can be varied as long as the first supporting member (212) and the substrate (300) can be connected.

[0054] The support member (212) may be formed integrally with the rear electrode (202), but may also be formed separately and connected by penetrating the housing (100).

[0055] The front electrode (250) may be supported by a second support member (252). The second support member (252) may be disposed on the inner side of the housing (100). A coupling member (254) may extend from the second support member (252) toward the center of the housing (100). The coupling member (254) may be coupled with a battery module (400, 500, 600). The second support member (252) may be formed integrally with the front electrode (250), but may also be formed separately and connected by penetrating the housing (100).

[0056] The substrate (300) may be placed inside the housing (100). The substrate (300) may be electrically connected to the electrode (200). The substrate (300) may be electrically connected to the battery module (400, 500, 600). Various devices, such as a central processing unit, an electrode control unit, and a communication unit, may be mounted or installed on the substrate (300).

[0057] The substrate (300) may include a first straight section (310) facing a first connecting member (214), a second straight section (330) facing a second connecting member (224), a third straight section (350) facing a third connecting member (234), a first bent section (320) connecting the first straight section (310) and the second straight section (330), and a second bent section (340) connecting the second straight section (330) and the third straight section (350). Through this, space efficiency can be secured.

[0058] The first straight section (310), the second straight section (330), and the third straight section (350) may have holes (312, 332, 352) formed therein for screw coupling with the first to third connecting members (214, 224, 234).

[0059] The battery module (400, 500, 600) may be placed inside the housing (100). The battery module (400, 500, 600) may be electrically connected to the substrate (300). The battery module (400, 500, 600) may be electrically connected to the electrode (200). The battery module (400, 500, 600) may include a battery holder (400), a battery (500), and a connection terminal (600).

[0060] The battery holder (400) may be placed inside the housing (100). The battery holder (500) may be placed in an area opposite to the area where the substrate (300) is placed, with respect to the central area of ​​the housing (100). The battery holder (400) may be extended in a circumferential direction. The battery holder (400) may be formed as a single body, but may also be formed as two bodies and combined. In this case, the battery (500) is easy to replace.

[0061] The battery holder (400) may include a battery mounting groove (410) in which a battery (500) is seated, and a connection terminal mounting groove (420) in which a connection terminal (600) is seated. The battery mounting groove (410) may include a plurality of battery mounting grooves (410) spaced apart in the circumferential direction, and the connection terminal mounting groove (420) may include a plurality of connection terminal mounting grooves (420) spaced apart in the circumferential direction. The battery mounting groove (410) may be formed in a shape corresponding to the shape of the battery (500), and the connection terminal mounting groove (420) may be formed in a shape corresponding to the shape of the connection terminal (600).

[0062] The battery (500) can be placed in the battery holder (400). The battery (500) can be formed in the shape of a coin. The battery (500) may include a plurality of batteries (500) spaced apart in the circumferential direction. The battery (500) can be placed in the battery mounting groove (410).

[0063] A connection terminal (600) may be placed in a battery holder (400). The connection terminal (600) may be electrically connected to a battery (500). The connection terminal (600) may include a plurality of connection terminals (600) placed between a plurality of batteries (500). The connection terminal (600) may connect a plurality of batteries (500) in series. The connection terminal (600) may be formed in a 'U' or 'V' shape.

[0064] A connection terminal (600) may also be disposed on the circumferential outer surface of the outermost battery (500) among the plurality of batteries (500). The connection terminal (600) disposed on the circumferential outer surface of the outermost battery (500) may be electrically connected to the substrate (300).

[0065] There is an advantage in increasing space efficiency through battery modules (400, 500, 600) and using commercially available small batteries (500).

[0066] Unlike one embodiment of the present specification, the positions of the substrate (300) and the battery modules (400, 500, 600) may be reversed. In this case, the rear electrode (202) may be connected to the battery modules (400, 500, 600), and the front electrode (250) may be connected to the substrate (300).

[0067] Fig. 10 is a cross-sectional view of the female body. Fig. 11 is a diagram showing the muscles near the vagina and urethra of the female body.

[0068] Referring to FIG. 10, it can be seen that the spine is positioned in the upper direction, which represents the front of the human body, and the lower direction, which represents the back of the human body. In this case, the urethra is positioned in front of the vagina (20), and muscles (30) that are positioned in the back of the vagina (20), such as the puborectalis muscle, the pubococcygeus muscle, and the iliococcygeus muscle, which are part of the pelvic floor muscles, are positioned in the back of the vagina (20).

[0069] Referring to FIG. 11, it can be seen that the sphincter urethrae, which is a muscle (40) surrounding the urethra located in front of the vagina (20), is positioned.

[0070] That is, through the electric stimulation device (10), urinary incontinence can be prevented and treated by stimulating the muscles (40) surrounding the urethra located in front of the vagina (20), fecal incontinence can be prevented and treated by stimulating the muscles (30) located behind the vagina (20), and pelvic floor muscles located below the pelvis can be prevented and treated.

[0071] FIG. 13 is an exploded perspective view of a first modified example of an electric stimulation device according to an embodiment of the present invention. FIG. 14 is a drawing with the housing removed from the first modified example of an electric stimulation device according to an embodiment of the present invention. FIG. 15 is a drawing with the housing and part of the battery holder removed from the first modified example of an electric stimulation device according to an embodiment of the present invention. FIG. 16 is a perspective view of the housing of the first modified example of an electric stimulation device according to an embodiment of the present invention. FIG. 17 is a perspective view of the electrode of the first modified example of an electric stimulation device according to an embodiment of the present invention. FIG. 18 is a perspective view of the substrate of the first modified example of an electric stimulation device according to an embodiment of the present invention. FIG. 19 is a perspective view of the battery holder of the first modified example of an electric stimulation device according to an embodiment of the present invention. FIG. 20 is a perspective view of the battery and the connection terminal of the first modified example of an electric stimulation device according to an embodiment of the present invention.

[0072] Referring to FIGS. 13 to 20, a first variant of an electric stimulation device (10) according to one embodiment of the present invention may include a housing (100), an electrode (200), a substrate (300), and a battery module (400, 500, 600), but may be implemented excluding some of the configurations and not excluding additional configurations.

[0073] The detailed configuration of the first modified example of the electric stimulation device (10) according to one embodiment of the present invention, which is not described below, can be understood as being identical to the detailed configuration of the electric stimulation device (10) according to one embodiment of the present invention in FIGS. 1 to 9.

[0074] The electric stimulation device (10) can be inserted into the human body non-invasively. The electric stimulation device (10) can be inserted into the vagina (20) of a woman. The electric stimulation device (10) can come into contact with the inner wall (22) of the vagina (20). The electric stimulation device (10) can stimulate the muscles surrounding the vagina (20) by applying electric stimulation inside the vagina (20), causing them to contract. Through this, the muscles surrounding the vagina (20) develop, thereby preventing and treating urinary incontinence, fecal incontinence, and pelvic organ prolapse, or alleviating symptoms.

[0075] The housing (100) can form the exterior of the electric stimulation device (10). The housing (100) can be formed in a ring shape. The housing (100) can be formed in a donut shape. Not limited thereto, the housing (100) can be formed in various shapes suitable for non-invasive insertion into the vagina, such as a disc shape, a sphere shape, a cylinder shape, a rugby ball shape, or a banana shape. The housing (100) can be formed from an elastic material. For example, the housing (100) can be formed from a silicone material.

[0076] The housing (100) may be formed from a material that is harmless to the human body. Alternatively, the housing (100) may be coated with a material that is harmless to the human body. For example, it may be formed from a biocompatible material such as EVA copolymer (Ethylene Vinyl Acetate Copolymer). Alternatively, it may exhibit excellent bonding characteristics by being formed from various materials such as PE (Poly Ethylene), PS (Poly Styrene), PET (Poly Ethylene Terephthalate), PVC (Poly Vinyl Chloride), PVDC (Poly Vinylidene Chloride), PP (Poly Prophylene), and PVA (Poly Vinyl Alcohol), which are plastic materials with high transparency and elasticity.

[0077] The housing (100) may include electrode grooves (110, 120, 130, 150). The electrode grooves (110, 120, 130, 150) may be formed on the outer surface of the housing (100).

[0078] The electrode grooves (110, 120, 130, 150) may include a plurality of electrode grooves (110, 120, 130, 150) spaced apart from each other. For example, the plurality of electrode grooves (110, 120, 130, 150) may include a first electrode groove (110), a second electrode groove (120), a third electrode groove (130), and a fourth electrode groove (150) formed in the radially outer region of the outer surface of the housing (100). First to fourth electrodes (210, 220, 230, 250) may be disposed in each of the first to fourth electrode grooves (110, 120, 130, 150). Through this, space efficiency can be improved, and physical foreign body sensation caused by the electrode (200) protruding outside the housing (100) can be reduced.

[0079] The housing (100) may be positioned closer to the entrance of the vagina (20) than the uterus positioned above the vagina (20). Here, the entrance of the vagina (20) can be interpreted as the point connecting the inside of the vagina (20) to the outside of the human body. Through this, the pelvic floor muscles positioned below the pelvis can be stimulated to prevent and treat pelvic organ prolapse or to alleviate the symptoms of pelvic organ prolapse.

[0080] The electrode (200) may be placed in the housing (100). The electrode (200) may be placed on the outer surface of the housing (100). Specifically, the electrode (200) may be placed in the radially outer region of the outer surface of the housing (100). The electrode (200) may come into contact with the inner wall (22) of the vagina (20). The electrode (200) may apply electrical stimulation to the inner wall (22) of the vagina (20). Through this, the muscles around the vagina (20) may contract.

[0081] The electrode (200) may include a plurality of electrodes (210, 220, 230, 250) spaced apart from each other. The plurality of electrodes (210, 220, 230, 250) may include a first electrode (210), a second electrode (220), a third electrode (230), and a fourth electrode (250) disposed in a radially outer region among the outer surfaces of the housing (100). The first to fourth electrodes (210, 220, 230, 250) may be referred to as 'outer electrodes'.

[0082] The first to third electrodes (210, 220, 230) may be positioned on the outer surface of the housing (100) at the rear relative to the human body. Assuming that the direction facing forward relative to the center area of ​​the housing (100) is 0°, the first to third electrodes (210, 220, 230) may be positioned between 90° and 270°. Through this, the muscles (30) positioned at the rear of the vagina (20) can be stimulated and contracted, thereby preventing and treating fecal incontinence or alleviating symptoms of fecal incontinence. The first to third electrodes (210, 220, 230) may be referred to as 'rear electrodes'.

[0083] Additionally, the fourth electrode (250) may be positioned on the outer surface of the housing (100) in front of the human body. Specifically, assuming that the direction facing forward of the human body relative to the center area of ​​the housing (100) is 0°, the fourth electrode (250) may be positioned at the 0° position. Through this, the muscle (40) surrounding the urethra, which is positioned in front of the vagina (20), can be stimulated and contracted, thereby preventing and treating urinary incontinence or alleviating symptoms of urinary incontinence. The fourth electrode (250) may be referred to as the 'front electrode'.

[0084] Here, "front" relative to the human body can be interpreted as the direction directly in front of a person when standing, and "rear" relative to the human body can be interpreted as the opposite direction of the direction directly in front of a person when standing.

[0085] The first electrode (210), the second electrode (220), and the third electrode (230) may each be supported by a first support member (212, 222, 232). The first support member (212, 222, 232) may be disposed on the inner surface of the housing (100). The connecting member (214, 224, 234) may extend from the first support member (212, 222, 232) toward the center of the housing (100). The connecting member (214, 224, 234) may be coupled to the substrate (300). For example, the connecting member (214, 224, 234) may be screw-coupled to the substrate (300), but the method of connecting the connecting member (214, 224, 234) and the substrate (300) is not limited thereto and may be changed in various ways.

[0086] In one embodiment of the present specification, the rear electrode is described as being composed of first to third electrodes (210, 220, 230) spaced apart in the circumferential direction, but the number of rear electrodes may be two or four or more.

[0087] The first support member (212, 222, 232) may be formed integrally with each of the first to third electrodes (210, 220, 230), but may also be formed separately and connected by penetrating the housing (100).

[0088] The fourth electrode (250) may be supported by the second support member (252). The second support member (252) may be disposed on the inner surface of the housing (100). The coupling member (254) may extend from the second support member (252) toward the center of the housing (100). The coupling member (254) may be coupled with the battery module (400, 500, 600). The second support member (252) may be formed integrally with the fourth electrode (250), but may also be formed separately and connected by penetrating the housing (100).

[0089] The substrate (300) may be placed inside the housing (100). The substrate (300) may be electrically connected to the electrode (200). The substrate (300) may be electrically connected to the battery module (400, 500, 600). Various devices, such as a central processing unit, an electrode control unit, and a communication unit, may be mounted or installed on the substrate (300).

[0090] The substrate (300) may include a first straight section (310) facing the first electrode (210), a second straight section (330) facing the second electrode (220), a third straight section (350) facing the third electrode (230), a first bent section (320) connecting the first straight section (310) and the second straight section (330), and a second bent section (340) connecting the second straight section (330) and the third straight section (350). Through this, space efficiency can be secured.

[0091] The first straight section (310), the second straight section (330), and the third straight section (350) may have holes (312, 332, 352) formed therein for screw coupling with connecting members (214, 224, 234).

[0092] The battery module (400, 500, 600) may be placed inside the housing (100). The battery module (400, 500, 600) may be electrically connected to the substrate (300). The battery module (400, 500, 600) may be electrically connected to the electrode (200). The battery module (400, 500, 600) may include a battery holder (400), a battery (500), and a connection terminal (600).

[0093] The battery holder (400) may be placed inside the housing (100). The battery holder (500) may be placed in an area opposite to the area where the substrate (300) is placed, with respect to the central area of ​​the housing (100). The battery holder (400) may be extended in a circumferential direction. The battery holder (400) may be formed as a single body, but may also be formed as two bodies and combined. In this case, the battery (500) is easy to replace.

[0094] The battery holder (400) may include a battery mounting groove (410) in which a battery (500) is seated, and a connection terminal mounting groove (420) in which a connection terminal (600) is seated. The battery mounting groove (410) may include a plurality of battery mounting grooves (410) spaced apart in the circumferential direction, and the connection terminal mounting groove (420) may include a plurality of connection terminal mounting grooves (420) spaced apart in the circumferential direction. The battery mounting groove (410) may be formed in a shape corresponding to the shape of the battery (500), and the connection terminal mounting groove (420) may be formed in a shape corresponding to the shape of the connection terminal (600).

[0095] The battery (500) can be placed in the battery holder (400). The battery (500) can be formed in the shape of a coin. The battery (500) may include a plurality of batteries (500) spaced apart in the circumferential direction. The battery (500) can be placed in the battery mounting groove (410).

[0096] A connection terminal (600) may be placed in a battery holder (400). The connection terminal (600) may be electrically connected to a battery (500). The connection terminal (600) may include a plurality of connection terminals (600) placed between a plurality of batteries (500). The connection terminal (600) may connect a plurality of batteries (500) in series. The connection terminal (600) may be formed in a 'U' or 'V' shape.

[0097] A connection terminal (600) may also be disposed on the circumferential outer surface of the outermost battery (500) among the plurality of batteries (500). The connection terminal (600) disposed on the circumferential outer surface of the outermost battery (500) may be electrically connected to the substrate (300).

[0098] There is an advantage in increasing space efficiency through battery modules (400, 500, 600) and using commercially available small batteries (500).

[0099] FIG. 21 is a second modified example of an electric stimulation device according to one embodiment of the present invention.

[0100] Referring to FIG. 21, the electrode (200) is formed as a single electrode and can cover the entire outer surface of the housing (100). The electrode (200) is electrically connected to a substrate (300) placed inside the housing (100) and can be electrically connected to a battery module (400, 500, 600). Through this, the inner wall (22) of the vagina (20) can be extensively stimulated to contract the muscles around the vagina (20).

[0101] FIG. 22 is a third modified example of an electric stimulation device according to one embodiment of the present invention.

[0102] Referring to FIG. 22, the electrode (200) is formed as a single electrode and can cover an area positioned radially outward among the outer surfaces of the housing (100). The electrode (200) is electrically connected to a substrate (300) positioned inside the housing (100) and can be electrically connected to a battery module (400, 500, 600). Through this, the inner wall (22) of the vagina (20) can be extensively stimulated to contract the muscles around the vagina (20).

[0103] FIGS. 23 to 25 are experimental examples of an electric stimulation device according to an embodiment of the present invention. The horizontal axis of FIGS. 23 to 25 can be interpreted as representing time, and the vertical axis as representing the amount of vaginal muscle contraction. Additionally, 'A μA, B μsec, C sec' can be interpreted as meaning 'a current of A microampere is applied for C seconds at intervals of B microseconds'. Furthermore, the graph below shows the case where electric stimulation is applied by the electric stimulation device (10) according to an embodiment of the present invention, and the graph below shows the case where electric stimulation is not applied.

[0104] Referring to FIG. 23, it can be seen that in the case of patient 1, there is almost no contraction of the vaginal muscles when no electrical stimulation is applied. On the other hand, it can be seen that when electrical stimulation is applied with the electrical stimulation device (10), contraction of the vaginal muscles occurs.

[0105] Referring to FIG. 24, it can be seen that in the case of patient 2, periodic contraction of the vaginal muscles does not occur when no electrical stimulation is applied. On the other hand, it can be seen that periodic contraction of the vaginal muscles occurs when electrical stimulation is applied with the electrical stimulation device (10).

[0106] Referring to FIG. 25, it can be seen that in the case of patient 3, periodic contraction of the vaginal muscles does not occur when no electrical stimulation is applied. On the other hand, it can be seen that periodic contraction of the vaginal muscles occurs when electrical stimulation is applied with the electrical stimulation device (10).

[0107] FIGS. 26 to 30 are graphs summarizing experimental examples of an electric stimulation device according to one embodiment of the present invention.

[0108] The horizontal axis of FIGS. 26 and FIGS. 27 represents time (minutes), and the vertical axis represents the fold change of the average value of vaginal muscle contraction amounts for patients 1 to 3. Here, the fold change can be interpreted as meaning that the contraction amount at 0 minutes is set to 1, and the contraction amount of the remaining range is converted accordingly.

[0109] Referring to FIGS. 26 and 27, it can be seen that when no electrical stimulation is applied, the average contraction amount of the vaginal muscles of patients 1 to 3 is lower than 0.5, but when electrical stimulation is applied with the electrical stimulation device (10), the average contraction amount of the vaginal muscles of patients 1 to 3 is higher than 1.

[0110] The horizontal axis of FIGS. 28 and FIGS. 29 represents current (μA), and the vertical axis is a graph representing the fold change of the average value of vaginal muscle contraction volume of patients 1 to 3.

[0111] Referring to FIGS. 28 and 29, it can be seen that when no electrical stimulation is applied, the average contraction amount of the vaginal muscles of patients 1 to 3 is lower than 0.5, but when electrical stimulation is applied with the electrical stimulation device (10), the average contraction amount of the vaginal muscles of patients 1 to 3 is higher than 1.

[0112] Referring to FIG. 30, it can be seen that the average ratio of vaginal muscle contraction volume of patients 1 to 3 is significantly higher when electrical stimulation is applied with the electrical stimulation device (10) compared to when electrical stimulation is not applied.

[0113] FIGS. 31 to 36 are graphs showing the effects of an electric stimulation device according to one embodiment of the present invention on human body factors.

[0114] Referring to FIG. 31, it can be seen that the GJA1 factor is more activated when electrical stimulation is applied with the electrical stimulation device (10) compared to when electrical stimulation is not applied.

[0115] Referring to FIG. 32, it can be seen that the PTGS2 factor is more activated when electrical stimulation is applied with the electrical stimulation device (10) compared to when electrical stimulation is not applied.

[0116] Referring to FIG. 33, it can be seen that the KCNA1 factor is more activated when electrical stimulation is applied with the electrical stimulation device (10) compared to when electrical stimulation is not applied.

[0117] Referring to FIG. 34, it can be seen that the SLC8A1 factor is more activated when electrical stimulation is applied with the electrical stimulation device (10) compared to when electrical stimulation is not applied.

[0118] Factors GJA1 and PTGS2 are contraction markers, and factors KCNA1 and SLC8A1 are factors that affect vaginal muscle contraction, so it can be seen that vaginal muscle contraction is further activated when electrical stimulation is applied with an electrical stimulation device (10).

[0119] Referring to FIG. 35, it can be seen that the ESR1 factor is more activated when electrical stimulation is applied with the electrical stimulation device (10) compared to when electrical stimulation is not applied.

[0120] The ESR1 factor is a factor indicating the amount of estrogen in women, and it can be seen that in the case of elderly women whose estrogen secretion is low, the electric stimulation device (10) can activate estrogen secretion.

[0121] Referring to FIG. 36, it can be seen that the VIP factor is more activated when electrical stimulation is applied with the electrical stimulation device (10) compared to when electrical stimulation is not applied.

[0122] VIP factor is a factor related to the parasympathetic nervous system, and it can be seen that the parasympathetic nervous system can be activated by an electrical stimulation device (10).

[0123] Referring to FIGS. 23 to 36, it can be seen that when an electrical stimulation of 100 to 5000 μA is applied with an electrical stimulation device (10), contraction of the vagina occurs, and as a result, contraction of the muscles located near the vagina occurs. In addition, female hormones can be increased and the parasympathetic nervous system can be activated.

[0124] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention may be implemented in other specific forms without changing its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. Explanation of the symbols

[0125] 10: Electric stimulation device 100: Housing 200: Electrode 300: Substrate 400: Battery holder 500: Battery 600: Connection terminal

Claims

Claim 1 An electrical stimulation device comprising: a housing inserted into the vagina of a human body and in contact with the inner wall of the vagina; an electrode disposed on the outer surface of the housing and applying electrical stimulation to the inner wall of the vagina; a substrate disposed inside the housing and electrically connected to the electrode; and a battery module disposed inside the housing and electrically connected to the substrate, wherein the electrode includes a front electrode facing forward relative to the human body and a rear electrode facing backward, wherein the front electrode partially occupies an area including a central area within the front region of the housing, and the rear electrode is disposed within an area between 90° and 270° relative to the central area of ​​the housing, where the direction facing forward of the human body is defined as 0°, and the circumferential length of the rear electrode is longer than the circumferential length of the front electrode. Claim 2 In claim 1, the housing is an electric stimulation device positioned closer to the entrance of the vagina than to the uterus positioned above the vagina. Claim 3 delete Claim 4 An electrical stimulation device according to claim 1, wherein the rear electrode comprises a plurality of rear electrodes spaced apart in the circumferential direction. Claim 5 An electric stimulation device according to claim 4, wherein the plurality of rear electrodes comprises first to third electrodes spaced apart in the circumferential direction, and the substrate comprises a first straight section facing the first electrode, a second straight section facing the second electrode, a third straight section facing the third electrode, a first bent section connecting the first straight section and the second straight section, and a second bent section connecting the second straight section and the third straight section. Claim 6 An electrical stimulation device according to claim 1, wherein the housing includes an electrode groove formed on an outer surface, and the front electrode and the rear electrode are disposed in the electrode groove. Claim 7 An electric stimulation device according to claim 1, further comprising: a first support member disposed on the inner surface of the housing to support the rear electrode; and a connecting member extending from the first support member toward the center of the housing to be coupled with the substrate. Claim 8 An electric stimulation device according to claim 1, further comprising: a second support member disposed on the inner surface of the housing to support the front electrode; and a coupling member protruding from the second support member toward the center of the housing to be coupled with the battery module. Claim 9 In claim 1, the battery module comprises an electric stimulation device including a battery holder extending in a circumferential direction, a plurality of batteries disposed in the battery holder and spaced apart in a circumferential direction, and a plurality of connection terminals disposed between the plurality of batteries. Claim 10 In claim 9, the battery holder comprises a battery seating groove formed in the shape of a coin for seating the battery, and a connection terminal seating groove formed in the shape of a 'U' or 'V' for seating the connection terminal.

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