Ultrasonic wave generating device

Abstract

The present invention relates to an ultrasonic wave generating device comprising: a transducer unit for outputting ultrasonic waves; a housing unit in which the transducer unit is movably positioned; a transducer moving unit rotatably positioned in the housing unit and configured to rotate to move the transducer unit; a rotor unit provided on the rotating shaft of the transducer moving unit and including a plurality of magnets; and a stator unit positioned outside the housing unit and generating a magnetic field to rotate the rotating shaft when a current is applied thereto. Therefore, the ultrasonic wave generating device generates a rotational force for linearly moving the transducer unit through electromagnetic coupling, thereby minimizing noise and vibration during operation and improving stability and satisfaction during the procedure.

Description

Ultrasonic generator

[0001] The present invention relates to an ultrasonic generator, and more specifically, to an ultrasonic generator that outputs ultrasonic waves while a transducer moves.

[0002] In general, ultrasound refers to sound waves with a frequency exceeding 20 kHz, which is beyond the audible frequency range of the human ear.

[0003] Ultrasound is mainly used in ultrasound imaging devices to obtain internal images of a subject, and recently, it has been applied to the skin and used in skin cosmetic procedures.

[0004] Ultrasound used in skin cosmetic treatments utilizes high intensity focused ultrasound (HIFU) to generate heat at the focal point by focusing.

[0005] High-intensity focused ultrasound (HIFU) devices have proven effective in improving wrinkles and other skin conditions, and are gaining recognition as an alternative to invasive facelift procedures. The human skin structure is composed of the epidermis, dermis, subcutaneous fat, muscle, and bone, in that order. The dermis is composed primarily of collagen, which plays a role in maintaining skin elasticity.

[0006] In other words, the ultrasound generator not only induces coagulation by applying high-intensity focused ultrasound to the Superficial Musculo-Aponeurotic System (SMAS) layer, part of the muscle layer, but also transmits heat through ultrasound deep into the dermis. As a result, it promotes collagen regeneration, thereby eliminating wrinkles and improving skin elasticity.

[0007] The ultrasonic generator is positioned so as to be able to move linearly inside the housing that comes into contact with the skin, and the treatment is performed by moving the focus while irradiating the skin with ultrasonic waves while moving linearly inside the housing.

[0008] A prior patent related to the present invention is Korean Patent Registration No. 10-2514207 entitled “Ultrasonic focus point moving cartridge and ultrasonic treatment device including the same.”

[0009] Korean Patent Registration No. 10-2514207, “Ultrasonic Focused Point Moving Cartridge and Ultrasonic Treatment Device Including Same,” receives rotational force from the outside of the ultrasonic focused point moving cartridge through a gear meshing structure and converts it into linear movement to move the ultrasonic transducer in a linear manner.

[0010] Korean Patent Registration No. 10-2514207, "Ultrasonic Focused Point Moving Cartridge and Ultrasonic Treatment Device Including Same," has a structure that transmits the rotational power of a motor with a gear meshing structure, which causes noise and vibration when transmitting the driving power, resulting in a decrease in stability during treatment. In addition, there is a problem in that the position of the ultrasonic transducer cannot be accurately controlled during movement due to loss in power transmission caused by play in the gears.

[0011] A prior patent application related to the present invention is Korean Patent Registration No. 10-2514207, “Ultrasonic Focused Point Moving Cartridge and Ultrasonic Treatment Device Including the Same” (registered on March 22, 2023).

[0012] The purpose of the present invention is to provide an ultrasonic generator that generates a rotational force for linearly moving a transducer unit through electromagnetic coupling.

[0013] In order to achieve the above-described object of the present invention, one embodiment of an ultrasonic generator according to the present invention is characterized by including a transducer unit that outputs ultrasonic waves, a housing unit in which the transducer unit is movably positioned, a transducer moving unit that is rotatably positioned within the housing unit and rotates to move the transducer unit, a rotor unit that is provided on a rotational axis of the transducer moving unit and includes a plurality of magnets, and a stator unit that is positioned outside the housing unit and generates a magnetic field when a current is applied to rotate the rotational axis.

[0014] In the present invention, the rotor part includes a plurality of permanent magnets, and the plurality of permanent magnets can be positioned in a radial manner spaced apart from each other in the circumferential direction based on the center of rotation.

[0015] In the present invention, a plurality of permanent magnets may be arranged alternately to have different polarities.

[0016] In the present invention, the stator section may include a plurality of coil sections that generate a magnetic field when current is applied.

[0017] In the present invention, a plurality of the coil sections can be arranged radially spaced apart from the center of rotation of the rotor section in the circumferential direction.

[0018] In the present invention, the plurality of coil sections may be provided in a number greater than the number of magnets of the rotor section.

[0019] In the present invention, a first space in which the transducer part is movably positioned and filled with a liquid medium is provided inside the housing part, the rotational axis of the transducer moving part protrudes through a partition wall that divides the first space, and the rotor part is provided on the rotational axis protruding through the partition wall and can be positioned outside the first space.

[0020] One embodiment of an ultrasonic generator according to the present invention further includes a main body part having a control part that controls the operation of the transducer part and to which the housing part is detachably coupled, and wherein the stator part can be positioned to face the rotor part when the housing part is coupled to the main body part.

[0021] In the present invention, the housing portion and the main body portion may each be provided with a first connection terminal portion and a second connection terminal portion that are connected to each other when the housing portion is coupled to the main body portion and electrically connect the transducer portion to the control portion.

[0022] One embodiment of the ultrasonic generator according to the present invention may further include a movement position detection unit that detects the position of the transducer unit.

[0023] In the present invention, the transducer moving part includes a moving rotational shaft part that is rotatably positioned within the housing part, and a moving body part that is coupled to the moving rotational shaft part and is connected to the transducer part and moves in the longitudinal direction of the moving rotational shaft part when the moving rotational shaft part rotates, and the moving position detecting part may include a rotational speed detecting part that detects the rotational speed of the moving rotational shaft part or a moving body position detecting part that detects the position of the moving body part.

[0024] In the present invention, the rotation speed detection unit may include a rotation plate unit provided on the rotation axis of the movable rotation shaft unit and having a plurality of slits spaced apart in a circumferential direction and arranged radially on the outer surface, and an encoder unit that detects the slits when the rotation plate unit rotates.

[0025] In the present invention, the moving body position detection unit may include a position detection magnet unit provided in the moving body unit and a plurality of hall sensor units positioned spaced apart from each other in the movement direction of the transducer unit to detect the magnetic force of the position detection magnet unit.

[0026] The present invention has the effect of improving stability during treatment and increasing satisfaction during treatment by generating rotational force for linearly moving a transducer unit through electromagnetic coupling and minimizing noise and vibration during operation.

[0027] In addition, the present invention generates a rotational force for linearly moving a transducer unit through electromagnetic coupling, thereby minimizing power loss that occurs during the transmission of the rotational force, thereby enabling the position of the transducer moving through rotation to be accurately identified, thereby increasing the efficiency of the procedure.

[0028] The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

[0029] Figure 1 is a schematic diagram showing one embodiment of an ultrasonic generator according to the present invention.

[0030] FIG. 2 is a drawing illustrating a rotor section and a stator section in one embodiment of an ultrasonic generator according to the present invention.

[0031] Figures 3 and 4 are schematic diagrams showing an example of operation of an ultrasonic generator according to the present invention.

[0032] *Explanation of symbols in the drawing

[0033] 100: Transducer section 200: Housing section

[0034] 200a: First space 200b: Second space

[0035] 200c: Upper space 210: Rotor housing

[0036] 220: Inner housing 221: Compartment wall

[0037] 222: Ceiling wall 230: First connection terminal

[0038] 300: Transducer moving part 310: Moving rotating shaft part

[0039] 320: Moving body part 321: Moving body member

[0040] 322: Elevating body member 330: Moving guide rail part

[0041] 400: Rotor 410: Permanent magnet

[0042] 500: Stator section 510: Coil section

[0043] 600: Main body 610: Handpiece body

[0044] 620: Second connection terminal part 700: Movement position detection part

[0045] 710: Rotation speed detection unit 711: Rotating plate unit

[0046] 711a: Slit 712: Encoder section

[0047] 720: Moving body position detection unit 721: Position detection magnet unit

[0048] 722: Hall sensor unit

[0049] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the technical concept of the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided to ensure that the disclosed content is thorough and complete and to sufficiently convey the spirit of the present invention to those skilled in the art.

[0050] In this specification, when a component is referred to as being on another component, it means that it can be formed directly on the other component, or a third component can be interposed between them. Furthermore, in the drawings, the shapes and thicknesses of regions are exaggerated for the purpose of effectively explaining the technical content.

[0051] Also, although terms such as first, second, and third have been used to describe various components in various embodiments of this specification, these components should not be limited by these terms. These terms are only used to distinguish one component from another. Thus, what is referred to as a first component in one embodiment may be referred to as a second component in another embodiment. Each embodiment described and illustrated herein also includes its complementary embodiments. Also, the term "and / or" has been used herein to mean including at least one of the components listed before and after.

[0052] In the specification, singular expressions include plural expressions unless the context clearly indicates otherwise. In addition, terms such as "comprise" or "have" are intended to specify the presence of a feature, number, step, component, or combination thereof described in the specification, and should not be construed as excluding the possibility of the presence or addition of one or more other features, numbers, steps, components, or combinations thereof. In addition, in the present specification, "connection" is used to mean both indirectly connecting a plurality of components and directly connecting them.

[0053] In addition, when describing the present invention below, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

[0054] FIG. 1 is a schematic diagram illustrating one embodiment of an ultrasonic generator according to the present invention, and FIG. 2 is a diagram illustrating a rotor section (400) and a stator section (500) in one embodiment of an ultrasonic generator according to the present invention.

[0055] An embodiment of an ultrasonic generator according to the present invention is described in detail below with reference to FIGS. 1 and 2.

[0056] One embodiment of an ultrasonic generator according to the present invention includes a transducer unit (100) that outputs ultrasonic waves.

[0057] One embodiment of the ultrasonic generator according to the present invention can irradiate an ultrasonic signal output from a transducer unit (100) into the user's skin to position the focus of the ultrasonic signal at a preset depth within the skin.

[0058] In general, ultrasound can be converted into heat energy when transmitted and absorbed within tissues. In particular, ultrasound with sufficient energy can cause a rapid temperature increase within tissues, a phenomenon known as the thermal effect of ultrasound. According to one embodiment of the present invention, ultrasound enables a treatment utilizing this thermal effect.

[0059] In one embodiment of the ultrasonic generator according to the present invention, the transducer unit (100) focuses the output ultrasonic signal at a certain focus and irradiates high intensity focused ultrasound with enhanced intensity into the skin.

[0060] In general, high-intensity focused ultrasound does not directly affect the epidermal layer of the skin, but induces coagulation in the superficial musculo-aponeurotic system (SMAS), which is part of the muscle layer, and transmits heat to the deep part of the dermis layer, which can improve skin elasticity as well as remove wrinkles.

[0061] Beyond its thermal effects, ultrasound can be utilized in a variety of medical fields. For example, ultrasound generally possesses penetrative or reflective properties, allowing it to be used to obtain cross-sectional images by visualizing the time and intensity of penetration or reflection within the human body.

[0062] As another example, ultrasound may act as a surgical knife for cutting procedures (e.g., cutting) with ultrasonic vibrations, or may be used to generate shock waves.

[0063] When the sound pressure of ultrasound passes through a fluid, it creates tiny bubbles within the fluid. These bubbles can expand and burst, creating a high-pressure shockwave.

[0064] One embodiment of the ultrasonic generator according to the present invention can be used for skin beauty purposes by irradiating high-intensity focused ultrasound into the skin or for obtaining images within the skin by irradiating ultrasound, and it is disclosed that it can also be used for various other known purposes.

[0065] The following example of the present invention is described as an example of using high-intensity focused ultrasound waves to irradiate the skin for skin beauty purposes.

[0066] The transducer unit (100) is positioned movably within the housing unit (200) and moves reciprocally in the horizontal direction, i.e., in the X-axis direction, as an example.

[0067] The interior of the housing (200) can be filled with a liquid medium for transmitting ultrasound to the skin.

[0068] In addition, the housing part (200) is provided with a contact surface that comes into contact with the skin and through which ultrasonic waves output from the transducer part (100) pass.

[0069] The contact surface is provided with a window section through which ultrasonic waves output from the transducer section (100) pass.

[0070] The transducer unit (100) has an output surface that outputs ultrasonic waves and is positioned toward the window unit, and is positioned movably within the housing unit (200) to output ultrasonic waves toward the window unit while moving.

[0071] The window part is manufactured in the form of a film using a transparent or translucent material, for example, and can be manufactured in various forms using a known material that allows ultrasonic waves to pass through.

[0072] For example, the contact surface may be formed as a concave or convex surface that can adhere to the skin.

[0073] Since the user's body part that is the subject of the procedure usually has a curved surface, the contact surface can be formed into a concave or convex curved surface to ensure stable contact with the body part that is the subject of the procedure.

[0074] Inside the housing section (200), a transducer moving section (300) that moves the transducer section (100) is located.

[0075] The transducer moving part (300) includes a moving rotational shaft part (310) that is rotatably positioned within the housing part (200) and a moving body part (320) that is coupled to the moving rotational shaft part (310) and is connected to the transducer part (100) and moves in the longitudinal direction of the moving rotational shaft part (310) when the moving rotational shaft part (310) rotates.

[0076] The movable rotary shaft (310) is, for example, a screw shaft or a cam shaft, and the screw shaft has a known screw structure in which threads are formed in the longitudinal direction on the outer surface, and the cam shaft has a cam structure in which a spiral cam groove is formed in the longitudinal direction on the outer surface, as an example.

[0077] The movable rotation shaft (310) may be a screw shaft that is screw-connected by penetrating the movable body (320), or a cam shaft that is connected by inserting the protrusion of the movable body (320) into the cam groove.

[0078] In addition, the movable rotary shaft (310) can be implemented in various ways by using a known structure that converts rotational force into linear movement to move the transducer unit (100) in the longitudinal direction, and a more detailed description thereof will be omitted.

[0079] The moving body part (320) moves along the longitudinal direction of the moving rotational axis part (310) when the moving rotational axis part (310) rotates, and accordingly, the transducer part (100) moves along the longitudinal direction of the moving rotational axis part (310) together with the moving body part (320).

[0080] The moving body part (320) can move forward when the moving rotation shaft part (310) rotates clockwise and move backward when the moving rotation shaft part (310) rotates counterclockwise, or can move forward when the moving rotation shaft part (310) rotates counterclockwise and move forward when the moving rotation shaft part (310) rotates clockwise.

[0081] The transducer moving part (300) may further include a moving guide rail part (330) that is arranged in the longitudinal direction of the moving rotation shaft part (310) to guide the movement of the moving body part (320).

[0082] The moving body part (320) includes a rail coupling part that is movably coupled to the moving guide rail part (330) and moves along the moving guide rail part (330) when moving along the moving rotation axis part (310).

[0083] The moving body part (320) is movably coupled to the moving guide rail part (330) and moves along the moving guide rail part (330).

[0084] Although not shown, the moving guide rail part (330) is arranged in a straight line parallel to the moving rotation shaft part (310) so that the transducer part (100) can be reciprocated in a straight line parallel to the moving rotation shaft part (310).

[0085] For example, the moving guide rail part (330) has a concave curved line or a convex curved line to guide the moving body part (320) to move along the curved line.

[0086] As an example, the moving guide rail part (330) is formed as a curved line having the same shape as the contact surface.

[0087] The moving guide rail part (330) is formed as a concave curved line when the contact surface of the housing part (200) is a concave curved surface, and is formed as a concave curved line when the contact surface of the housing part (200) is a concave curved surface, thereby moving the transducer part (100) in a curved manner in the same shape as the contact surface.

[0088] In addition, the moving guide rail part (330) has the same curvature as the curved surface of the contact surface, and by moving in a curved manner with the same curvature as the curved surface, the focus can be moved to the same depth into the skin while the contact surface is in close contact with the skin.

[0089] The moving body part (320) includes a moving body member (321) that is movably coupled to a moving rotation shaft part (310) and a rising and falling body member (322) that is movably coupled to the moving body member (321) and connected to a transducer.

[0090] The body member (322) for moving up and down has a projection protruding from the upper side for guiding up and down, and the moving body member (321) has a projection moving insertion part inserted so that the projection for guiding up and down moves up and down, i.e., moves in the Z-axis direction.

[0091] The ascending and descending body member (322) can smoothly move in a curved shape along a moving guide rail member (330) formed in a curved shape while moving up and down.

[0092] Accordingly, the transducer unit (100) can move the focus of ultrasound at a certain depth within the skin by moving along a curve corresponding to a curved surface in close contact with the skin along the moving guide rail unit (330) together with the ascending and descending body member (322).

[0093] Accordingly, by irradiating high-intensity focused ultrasound to a predetermined skin layer at a certain depth, the treatment effect can be increased and a uniform treatment effect can be obtained.

[0094]

[0095] Meanwhile, a rotor part (400) including a plurality of magnets is provided on the rotation axis of the transducer moving part (300), i.e., the moving rotation axis part (310). In addition, a stator part (500) that generates a magnetic field that rotates the rotor part (400) is positioned on the outside of the housing part (200).

[0096] One embodiment of an ultrasonic generator according to the present invention further includes a main body (600) to which a housing part (200) is detachably coupled and which has a control part that controls the operation of a transducer part (100).

[0097] And, the main body (600) is provided with a detachable housing (200) on the tip side, and includes a handpiece body (610) that the operator holds and uses by hand.

[0098] The handpiece body (610) may be equipped with a control unit that controls the operation of the transducer unit (100) and the stator unit (500) as an integral part therein, or may be electrically connected to a separate control body equipped with a control unit by a cable.

[0099] The housing part (200) is inserted at least partially into the cartridge coupling part located at the tip end of the handpiece body part (610) and coupled, and the coupling is completed when the coupled position is locked by a cartridge locking mechanism (not shown).

[0100] The cartridge locking mechanism is positioned on both sides of the handpiece body (610), and is, for example, a button-type locking mechanism that is released from a locked state by pressing a button. In addition, the cartridge locking mechanism can be implemented in various ways by modifying it into a known locking structure.

[0101] The transducer unit (100) is a consumable that is replaced when used a preset number of times or within a preset usage time range.

[0102] Accordingly, one embodiment of the ultrasonic generator is a housing part (200) in which a transducer part (100) is positioned inside, and is detachably connected to a handpiece body part (610), so that only the housing is periodically replaced for use.

[0103] Although not shown, the handpiece body (610) is provided with an operation control switch for controlling the operation of the transducer unit (100). One embodiment of the handpiece body (610) and the control main body can be implemented in various ways as a known embodiment in a known skin ultrasound generator used for skin treatment, so a more detailed description thereof is omitted.

[0104] The stator part (500) is provided in the handpiece body part (610), and when the housing part (200) is coupled to the handpiece body part (610), it is positioned to face the rotor part (400).

[0105] A rotor housing part (200) is provided on the rear side of the housing part (200) with a rotor part (400) positioned inside, and a transducer part (100) is movably positioned inside the housing part (200) and a partition wall (221) is provided to separate a first space (200a) filled with a liquid medium inside and a second space (200b) within the rotor housing part (210).

[0106] In addition, the rotor part (400) is connected to the rotation axis of the movable rotation axis part (310) that protrudes through the partition wall (221) and is positioned within the rotor housing part (200) so as not to be exposed to the outside.

[0107] The rotation axis of the movable rotation shaft (310) is positioned to protrude into the rotor housing (200) by penetrating one side of the housing (200).

[0108] The rotor section (400) includes a plurality of permanent magnets (410), and the plurality of permanent magnets (410) are positioned in a radial manner spaced apart from each other in the circumferential direction based on the center of rotation, but are arranged so that the polarities of one side facing the stator section (500) alternately have different polarities.

[0109] That is, a plurality of permanent magnets (410) are positioned so as to be exposed on one surface of the rotor part (400), but are positioned in a radial manner from the center of rotation of the rotor part (400), and are arranged so as to have alternately different polarities.

[0110] In addition, the housing part (200) is coupled to the handpiece body part (610) by being inserted into the cartridge coupling part provided on the front end side of the handpiece body part (610) with the rear end side thereof, and the stator part (500) is positioned within the cartridge coupling part so that when the housing part (200) is coupled to the cartridge coupling part, it is positioned to face the rotor part (400) so that a magnetic field can be efficiently transmitted to the rotor part (400).

[0111] The stator section (500) includes a plurality of coil sections (510) that generate a magnetic field when current is applied, and the plurality of coil sections (510) are arranged radially and spaced apart from the center of rotation of the rotor section (400) in the circumferential direction.

[0112] The coil section (510) is a known coil body to which current is applied, and a more detailed description thereof is omitted.

[0113] When the housing part (200) is coupled to the main body part (600), i.e., the handpiece body part (610), the permanent magnet (410) of the rotor part (400) and the coil part (510) of the stator part (500) are positioned to face each other.

[0114] In addition, the plurality of coil sections (510) are provided in a number greater than the number of magnets of the rotor section (400) to sufficiently generate a magnetic field necessary to rotate the rotor section (400), thereby enabling the rotor section (400) to rotate more smoothly and stably.

[0115] As an example, the number of coil sections (510) is provided in a number of 1 to 10 more than the number of magnets.

[0116] The plurality of coil sections (510) can change the rotational direction of the rotor section (400) by changing the polarity toward the rotor section (400).

[0117] The movable rotary shaft (310) rotates together with the rotor (400) when the rotor (400) rotates due to the magnetic field generated from the stator (500), thereby moving the transducer (100) in the longitudinal direction.

[0118] The movable rotary shaft (310) rotates with the rotational force generated by electromagnetic coupling, thereby minimizing noise and vibration generated when the transducer unit (100) moves.

[0119] In addition, the housing part (200) is provided with a first connection terminal part (230) electrically connected to the transducer part (100) on the rear side, i.e., the side facing the handpiece body part (610), and the handpiece body part (610) is provided with a second connection terminal part (620) to which the first connection terminal part (230) is connected when the housing part (200) is coupled.

[0120] The second connection terminal (620) is a connection terminal electrically connected to a control unit that controls the operation of the transducer unit (100).

[0121] When the housing part (200) is connected, the first connection terminal part (230) and the second connection terminal part (620) are connected, and the control part can control the operation of the transducer part (100).

[0122] The control unit is included in a control main body to which the handpiece body (610) is electrically connected by a cable body, and the control main body can be implemented by being variously modified into a known structure in a known ultrasonic generator for skin beauty, so a more detailed description thereof is omitted.

[0123]

[0124] Meanwhile, one embodiment of the ultrasonic generator according to the present invention further includes a movement position detection unit (700) that detects the position of the transducer unit (100) moved by the rotation of the movable rotary shaft unit (310), i.e., the position of the transducer unit (100) in the X-axis direction.

[0125] The movement position detection unit (700) detects the position of the transducer unit (100) moving within the housing unit (200) and transmits it to the control body, thereby allowing the operator to check the position of the transducer unit (100) during the procedure.

[0126] The moving position detection unit (700) includes a rotation speed detection unit (710) that detects the rotation speed of the moving rotation shaft unit (310) or a moving body position detection unit (720) that detects the position of the moving body unit (320).

[0127] The rotation speed detection unit (710) detects the rotation speed of the movable rotation shaft unit (310) and transmits it to the control unit, and the control unit can confirm the position of the transducer unit (100) through the confirmed rotation speed of the movable rotation shaft unit (310).

[0128] In addition, the moving body position detection unit (720) detects the position of the moving body part (320) that is moved by the rotation of the moving rotation shaft part (310) and transmits it to the control unit, and the control unit can confirm the position of the transducer part (100) through the confirmed position of the moving body part (320).

[0129] The moving position detection unit (700) includes both a rotation speed detection unit (710) and a moving body position detection unit (720), so that the position of the transducer unit (100) can be more accurately confirmed.

[0130] The rotation speed detection unit (710) is provided on the rotation axis of the movable rotation shaft unit (310) and includes a rotation plate unit (711) having a plurality of slits (711a) spaced apart in the circumferential direction and arranged radially on the outer surface, and an encoder unit (712) that detects the slits (711a) when the rotation plate unit (711) rotates.

[0131] The rotary plate part (711) is mounted on the rotary shaft of the movable rotary shaft part (310) protruding into the second space (200b) and is positioned within the second space (200b), i.e., within the rotor housing part (210), and the encoder part (712) is positioned within the second space (200b) to detect the slit (711a) of the rotary plate part (711).

[0132] The rotation speed detection unit (710) detects a plurality of slits (711a) arranged radially on the outer surface of the rotation plate unit (711) when the movable rotation shaft unit (310) rotates with the encoder unit (712), thereby detecting not only the rotation speed but also the rotation angle of the movable rotation shaft unit (310), thereby enabling more accurate confirmation of the position of the transducer unit (100).

[0133] In addition, the rotation speed detection unit (710) can be implemented in various modified forms using a known sensor structure capable of detecting the rotation speed of the rotation shaft.

[0134] The moving body position detection unit (720) may include a position detection magnet unit (721) provided in the moving body unit (320) and a plurality of hall sensor units (722) positioned apart from each other in the longitudinal direction of the moving rotation shaft unit (310), i.e., in the movement direction of the transducer unit (100), to detect the magnetic force of the position detection magnet unit (721).

[0135] And, a plurality of hall sensor parts (722) are positioned spaced apart in the longitudinal direction of the moving rotation axis part (310), which is the direction of movement of the transducer part (100), in an upper space (200c) separated from the first space (200a) on the upper side of the first space (200a) filled with a liquid medium, and the transducer part (100) is positioned inside.

[0136] A plurality of hall sensor parts (722) detect the magnetic force of the magnet part (721) for detecting the position of the moving body part (320) when the moving body part (320) moves, thereby detecting the moving position of the moving body part (320).

[0137] The housing part (200) includes an inner housing (220) in which a transducer part (100) is positioned and a first space (200a) filled with a liquid medium, and positions the hall sensor part (722), encoder part (712), and rotor part (400) excluding the transducer part (100) in a space separated from the first space (200a).

[0138] The inner housing (220) includes a partition wall (221) that separates the second space (200b) on the rear side, i.e., the rotor housing part (210), and a ceiling wall (222) that separates the upper space (200c) where a plurality of hall sensor parts (722) are positioned on the upper side.

[0139] And, as an example, the housing part (200) is formed to have a space structure in which the second space (200b) and the upper space (200c) are open to each other and connected, and the second space (200b) and the upper space (200c) can be formed to have separate spaces.

[0140] When the rotor part (400) is located in the first space (200a) filled with a liquid medium, there is a problem that the rotational force due to the magnetic field is reduced due to resistance, i.e. friction, with the medium during rotation.

[0141] In addition, when sensors such as a hall sensor (722) and an encoder (712) for detecting the position of the transducer (100) are positioned within the first space (200a) filled with a liquid medium, a waterproof structure for insulation must be added, which increases manufacturing costs, complicates the structure, and increases the risk of failure due to problems with the waterproof structure.

[0142] The rotor part (400) is located within the rotor housing part (210) which is provided on the rear side of the housing part (200) and has a second space (200b) separated from the first space (200a), and receives the magnetic field of the stator part (500) so that the resistance generated during rotation can be minimized and the rotor can rotate smoothly.

[0143] In addition, sensors such as a hall sensor unit (722) and an encoder unit (712) for detecting the position of the transducer unit (100) are positioned in the first space (200a) and the upper space (200c) and the second space (200b), respectively, so that they can be stably electrically connected to the control unit without a separate waterproof structure for insulation.

[0144]

[0145] FIG. 3 and FIG. 4 are schematic diagrams showing an example of operation of an ultrasonic generator according to the present invention. Referring to FIG. 3 and FIG. 4, the housing part (200) is coupled to the handpiece body part (610) and is used in a state in close contact with the user's skin, and the transducer part (100) moves along the curved line of the moving guide rail part (330).

[0146] The housing part (200) is used by being combined with the handpiece body part (610), and is separated and replaced when the number of uses or use time of the transducer part (100) is reached.

[0147] When the housing part (200) is coupled to the handpiece body part (610), the rotor part (400) is positioned to face the stator part (500), and the first connection terminal part (230) and the second connection terminal part (620) are connected to each other, so that the control part and the transducer part (100) are electrically connected.

[0148] When current is applied to the stator portion (500) while the contact surface of the housing portion (200) is in contact with the user's skin, a magnetic field is generated, and the rotor portion (400) rotates through the magnetic field generated in the stator portion (500), causing the movable rotational shaft portion (310) to rotate, and thus the movable body portion (320) moves in the longitudinal direction of the movable rotational shaft portion (310).

[0149] And, the transducer unit (100) moves in the longitudinal direction of the movable rotation shaft unit (310) together with the movable body unit (320), and irradiates ultrasound into the user's skin while moving along the curved line of the movable guide rail unit (330).

[0150] The contact surface of the housing portion (200) is formed as a concave curved surface or a convex curved surface so that the entire surface is evenly adhered to the skin of the curved surface, and the moving guide rail portion (330) is formed as a curved line with the same curvature as the curvature of the contact surface.

[0151] Accordingly, the transducer unit (100) moves along a curved line having the same curvature as the curvature of the contact surface of the stator unit (500), thereby moving the focus at a uniform depth within the skin and heating the tissue within the skin, thereby efficiently producing skin beauty effects such as removing wrinkles and improving skin elasticity.

[0152]

[0153] The present invention generates a rotational force for linearly moving a transducer unit (100) through electromagnetic coupling, thereby minimizing noise and vibration during operation, thereby improving stability during treatment and enhancing satisfaction during treatment.

[0154] In addition, the present invention generates a rotational force for linearly moving the transducer unit (100) through electromagnetic coupling, thereby minimizing power loss that occurs during the transmission of the rotational force, thereby enabling the position of the transducer moved through rotation to be accurately identified, thereby increasing the efficiency of the procedure.

[0155]

[0156] While the present invention has been described in detail using preferred embodiments, the scope of the present invention is not limited to the specific embodiments described above, and should be interpreted in accordance with the appended claims. Furthermore, those skilled in the art will appreciate that numerous modifications and variations are possible without departing from the scope of the present invention.

Claims

1. Transducer section that outputs ultrasonic waves; A housing portion in which the transducer portion is movably positioned inside; A transducer moving unit rotatably positioned within the housing portion and rotating to move the transducer portion; A rotor part provided on the rotation axis of the above transducer moving part and including a plurality of magnets; and An ultrasonic generator characterized by including a stator portion located outside the housing portion and generating a magnetic field when current is applied to rotate the rotation shaft.

2. In claim 1, An ultrasonic generator characterized in that the rotor section includes a plurality of permanent magnets, and the plurality of permanent magnets are positioned in a radial manner spaced apart from each other in the circumferential direction based on the center of rotation.

3. In claim 2, An ultrasonic generator characterized in that a plurality of permanent magnets are arranged alternately to have different polarities.

4. In claim 2, An ultrasonic generator characterized in that the above stator section includes a plurality of coil sections that generate a magnetic field when current is applied.

5. In claim 4, A plurality of the above coil sections, An ultrasonic generator characterized in that it is arranged radially and spaced apart from the center of rotation of the rotor section in the circumferential direction.

6. In claim 5, An ultrasonic generator characterized in that the plurality of coil sections are provided in a number greater than the number of magnets of the rotor section.

7. In claim 1, Inside the housing part, the transducer part is movably positioned and a first space filled with a liquid medium is provided. The rotation axis of the above transducer moving part protrudes through the partition wall dividing the first space, An ultrasonic generator characterized in that the rotor part is provided on the rotation axis protruding through the partition wall and is positioned outside the first space.

8. In claim 1, The housing part is detachably coupled to the main body part, and further includes a control part that controls the operation of the transducer part. An ultrasonic generator characterized in that the stator portion is positioned to face the rotor portion when the housing portion is coupled to the main body portion.

9. In claim 8, An ultrasonic generator characterized in that the housing part and the main body part are each provided with a first connection terminal part and a second connection terminal part that are connected to each other when the housing part is coupled to the main body part and electrically connect the transducer part to the control part.

10. In claim 1, An ultrasonic generator further comprising a movement position detection unit that detects the position of the transducer unit.

11. In claim 10, The above transducer moving part, A movable rotary shaft portion rotatably positioned within the housing portion; and It includes a moving body part that is coupled to the above-mentioned movable rotational shaft part and is connected to the above-mentioned transducer part and moves in the longitudinal direction of the above-mentioned movable rotational shaft part when the above-mentioned movable rotational shaft part is rotated. The above movement position detection unit, An ultrasonic generator characterized by including a rotation speed detection unit for detecting the rotation speed of the movable rotation shaft unit or a moving body position detection unit for detecting the position of the moving body unit.

12. In claim 11, The above rotation speed detection unit, A rotating plate part having a plurality of slits arranged radially and spaced apart from each other in the circumferential direction on the outer surface of the rotating shaft part of the above-mentioned movable rotating shaft part; and An ultrasonic generator characterized by including an encoder unit that detects a slit when the above-mentioned rotating plate unit rotates.

13. In claim 11, The above moving body position detection unit, A position detection magnet provided in the above moving body; and An ultrasonic generator characterized by including a plurality of Hall sensor parts that are positioned spaced apart from each other in the direction of movement of the transducer part and detect the magnetic force of the position detection magnet part.

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