Ultrasound generator for therapeutic use and handpiece for ultrasound therapy including the same.

Abstract

The present invention relates to a therapeutic ultrasonic generator and an ultrasonic therapeutic handpiece including the same, and by connecting an ultrasonic transducer unit to a rotary motor unit via an eccentric shaft unit and rotating the ultrasonic transducer unit at an eccentric position on a plane, the focus of the ultrasonic waves is moved circularly on the plane, thereby facilitating adjustment of the ultrasonic output and further improving the therapeutic effect, and increasing the versatility of treatment by widening the radius of focus movement. Furthermore, by simplifying the structure for moving the focus of the ultrasonic waves generated by the ultrasonic transducer unit circularly on a plane, the load on the motor is minimized and manufacturing costs are reduced.

Description

[Technical Field]

[0001] The present invention relates to a therapeutic ultrasonic generator and an ultrasonic therapeutic handpiece including the same, and more specifically, to a therapeutic ultrasonic generator capable of reducing the size of the ultrasonic therapeutic handpiece by simplifying the structure for circularly moving the focal point of ultrasonic waves generated by an ultrasonic generator on the same plane, and an ultrasonic therapeutic handpiece including the same. [Background Art]

[0002] In recent years, as dietary habits have become westernized, obesity has increased rapidly and has become the biggest cause impairing public health and beauty. Various diet programs and ultrasonic obesity treatment devices for treating this have been developed and are widely used. High Intensity Focused Ultrasound (HIFU) obesity treatment technology was originally used for the purpose of anti-cancer treatment, which non-invasively selectively coagulates internal organ tumors at a high temperature to destroy cancer cells. Thereafter, Solta Medical in the United States first developed equipment called Liposonix with HIFU for the purpose of treating abdominal obesity in the human body. In the process of fat destruction using HIFU (high intensity focused ultrasound), when focused ultrasound is focused on a certain point where fat cells are located, the tissue temperature instantaneously rises to 65°C to 100°C, thereby causing tissue destruction. Unlike other dermatological equipment, such as laser and RF radiofrequency equipment, HIFU equipment induces coagulation necrosis of fat by concentrating HIFU energy on a non-invasively selected area without causing any damage to the skin surface. The necrotized fat cells are naturally removed through the body's mechanism for repairing damaged parts. As a known ultrasonic obesity treatment apparatus, there is "High intensity focused ultrasound generating apparatus for reducing subcutaneous fat layer" of Korean Registered Patent No. 10-1365946 (publication on February 24, 2014). The aforementioned "high-intensity focused ultrasound generator for reducing the subcutaneous fat layer" moves the transducer to a desired point in the X and Y axes, and then pivots it around the axes to allow the ultrasound to penetrate into the skin. However, the aforementioned "high-intensity focused ultrasound generator for reducing the subcutaneous fat layer" has a problem in that, due to the characteristics of its pivot drive, when providing ultrasound, the ultrasound is delivered in a curved (arc-shaped) manner, and the energy delivered to the skin decreases as it approaches the periphery, causing the focal depth to change and resulting in uneven treatment. To solve these problems, the applicant has previously proposed a structure in Korean Registered Patent No. 1649899, ​​"Therapeutic Ultrasound Generator," which includes a focus rotation movement unit that moves the focus of the ultrasound generated by the ultrasound generator in a circular shape on the same plane. This structure forms the focus of the ultrasound in a circular shape with a constant radius at a uniform depth within the skin, and applies energy uniformly within the radius to improve therapeutic performance. However, the "therapeutic ultrasound generator" registered in Korean Patent No. 1649899 has a structure in which multiple protruding members that protrude at different heights come into contact with the upper surface of the ultrasound generating unit. This structure not only limits the reduction in size but also presents a problem in that it restricts the stable movement of the focal point of the ultrasound generated by the ultrasound transducer unit in a circular motion on the same plane. Furthermore, the "therapeutic ultrasound generator" registered in Korean Patent No. 1649899 has a problem in that, because the ultrasound generating part is rotated while tilted, the ultrasound is generated at an angle, and the focal point on the skin is essentially formed in an oblique direction. As a result, the intensity of the ultrasound transmitted to the skin, i.e., the output of the ultrasound, is not transmitted uniformly to the skin, and it is difficult to increase the radius of the circle formed on the plane. Furthermore, the "therapeutic ultrasound generator" registered in Korean Patent No. 1649899 has a structure in which multiple protruding members that protrude at different heights come into contact with the upper surface of the ultrasound generating unit. Because the ultrasound generating unit is rotated while tilted, the structure is complex and manufacturing costs are high, and there is a problem that a torsional moment is generated, requiring a large load to rotate the ultrasound generating unit. [Overview of the Initiative] [Problems that the invention aims to solve]

[0003] The object of the present invention is to provide a therapeutic ultrasound generator and an ultrasound treatment handpiece including the same, which improve the performance of obesity treatment by moving the focal point of the ultrasound in a circular manner at a uniform depth within the skin, thereby uniformly penetrating the ultrasound into the skin. Another object of the present invention is to provide a therapeutic ultrasound generator and an ultrasonic therapeutic handpiece including the same, which allows for easy adjustment of the ultrasound output, a large radius of focus movement, and minimizes the load on the motor during operation, by rotating the ultrasonic transducer section at an eccentric position on a plane to move the focal point of the ultrasound in a circular motion on the same plane. Another object of the present invention is to provide a therapeutic ultrasound generator and an ultrasound therapy handpiece including the same, which can be made smaller by simplifying the structure that moves the focal point of the ultrasound generated in the ultrasound transducer unit in a circular motion on the same plane, thereby enabling ultrasound therapy to be performed on localized areas of the patient's skin, such as under the eyes. [Means for solving the problem]

[0004] To achieve the above objective, one embodiment of the therapeutic ultrasound generator according to the present invention is characterized by including: a cartridge housing portion having a window portion on its lower surface that contacts the skin and through which ultrasound passes; an ultrasonic transducer portion that is positioned to rotate on a plane within the cartridge housing portion and generates ultrasound; a rotary motor portion that rotates the ultrasonic transducer portion; and an eccentric shaft portion that is eccentrically connected to the upper surface of the ultrasonic transducer portion with respect to the body center of the ultrasonic transducer portion and rotates upon receiving the rotational force of the rotary motor portion. In the present invention, the ultrasonic transducer unit rotates around the eccentric shaft unit, allowing the focal point of the ultrasonic waves generated by the ultrasonic transducer unit to move in a circular motion on the same plane. One embodiment of the therapeutic ultrasound generator according to the present invention may further include a power supply protruding terminal portion that protrudes from the upper side of the ultrasonic transducer portion and supplies power to the ultrasonic transducer portion, and a power supply circuit board portion that is located spaced apart from the upper side of the ultrasonic transducer portion within the cartridge housing portion and to which the power supply protruding terminal portion is connected. In the present invention, the cartridge housing has a sealed internal structure and is filled with an ultrasonic transmission medium, the ultrasonic transmission medium may be an insulating liquid. In the present invention, a ring-shaped electrode pattern connected by a power cable and to which power is applied is located on the lower surface of the power supply substrate, and the power supply protruding terminal can move in a circular motion along the ring-shaped electrode pattern while elastically contacting the ring-shaped electrode pattern. In the present invention, the power supply protruding terminal portion may include a jig pin member connected to the ring-shaped electrode pattern and electrically connected to the ultrasonic transducer portion by an electric wire, a pin insertion member located on the upper surface of the ultrasonic transducer portion and in which the jig pin member is positioned to move up and down, and a pin support spring member located inside the pin insertion member and elastically supporting the jig pin member. One embodiment of the therapeutic ultrasound generator according to the present invention may further include: a substrate position fixing board portion located between the upper surface of the cartridge housing portion and the power supply substrate portion, which supports the position of the power supply substrate portion; a plurality of first board fixing portions, the ends of which are fixed to the upper surface of the cartridge housing portion and the substrate position fixing board portion, which support the position of the substrate position fixing board portion; and a plurality of second board fixing portions, the ends of which are fixed to the substrate position fixing board portion and the power supply substrate portion, which support the position of the power supply substrate portion. In the present invention, the plurality of first board fixing portions and the plurality of second board fixing portions are formed in a hollow tubular shape, and a power cable connecting the ring-shaped electrode pattern and the first main power supply terminal protruding from the upper part of the cartridge housing can be wired inside. One embodiment of the therapeutic ultrasound generator according to the present invention further includes an ultrasonic transducer movement section to which the ultrasonic transducer section is movably located at the lower part and the eccentric shaft section is connected to the upper part, thereby allowing adjustment of the focal radius on a plane. To achieve the above objective, one embodiment of the ultrasonic therapy handpiece according to the present invention includes a main body housing portion connected to a control body by a handpiece cable, and a therapeutic ultrasonic generator detachably coupled to the main body housing portion, wherein the therapeutic ultrasonic generator includes an embodiment of the therapeutic ultrasonic generator according to the present invention. [Effects of the Invention]

[0005] This invention applies energy uniformly to the treatment area by moving the ultrasound focal point in a plane at a uniform depth within the skin. However, it also has the effect of improving treatment performance by forming the ultrasound focal point into a circle with a constant radius at a uniform depth within the skin and applying energy uniformly within that radius. This invention allows for easy adjustment of the ultrasonic output and further improvement of the therapeutic effect by rotating the ultrasonic transducer section at an eccentric position on a plane, thereby moving the focal point of the ultrasound in a circular motion on the plane. It also has the effect of increasing the versatility of treatment by widening the range of focal point movement radius. Furthermore, the present invention has the effect of minimizing the load on the motor and reducing manufacturing costs by simplifying the structure that moves the focal point of the ultrasonic waves generated in the ultrasonic transducer section in a circular motion on the same plane. [Brief explanation of the drawing]

[0006] [Figure 1] This is a perspective view showing one embodiment of an ultrasonic treatment handpiece according to the present invention. [Figure 2] This is an exploded perspective view showing one embodiment of an ultrasonic treatment handpiece according to the present invention. [Figure 3] This is a cross-sectional view showing one embodiment of a therapeutic ultrasound generator according to the present invention. [Figure 4]This is a cross-sectional view showing an enlarged view of section A in Figure 3. [Figure 5] This is a partially enlarged bottom perspective view showing one embodiment of a therapeutic ultrasound generator according to the present invention. [Figure 6] This is a partially enlarged view showing another embodiment of the therapeutic ultrasound generator according to the present invention. [Modes for carrying out the invention]

[0007] The present invention will be described in more detail below. Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to the detailed description of the present invention, terms or words used in this specification and claims described below should not be construed as being limited to their ordinary or lexicographical meanings. Accordingly, the embodiments described herein and the configurations shown in the drawings represent only the most preferred embodiments of the present invention and do not represent the entire technical idea of ​​the present invention, and it should be understood that there are various equivalents and modifications that may substitute for them at the time of filing. Figure 1 is a perspective view showing one embodiment of the ultrasonic treatment handpiece according to the present invention, and Figure 2 is an exploded perspective view showing one embodiment of the ultrasonic treatment handpiece according to the present invention. Referring to Figures 1 and 2, the ultrasonic therapy handpiece according to the present invention includes a main body housing 100 to which the therapeutic ultrasonic generator according to the present invention is detachably coupled. One embodiment of the therapeutic ultrasound generator according to the present invention includes a cartridge housing 200 having an ultrasonic transducer 300 located inside and a window 203 through which ultrasonic waves pass at its lower part. The therapeutic ultrasound generator according to the present invention passes the ultrasound generated by the ultrasonic transducer unit 300 within the cartridge housing unit 200 through a window unit 203 located at the bottom of the cartridge housing unit 200 and irradiates the skin, and is detachably coupled to the main body housing unit 100 of the ultrasonic therapeutic handpiece according to the present invention. The ultrasonic treatment handpiece according to the present invention is connected to a control unit 1000 by a handpiece cable body 1100, the handpiece cable body 1100 including a power cable, a medium supply line and a medium discharge line for circulating the medium within the cartridge housing 200. The handpiece cable 1100 and the control unit 1000 can be modified in various ways, as is well known with other known ultrasonic therapy devices, so further detailed explanation is omitted. The ultrasonic transducer unit 300 has a preset number of uses, and in the therapeutic ultrasonic generator according to the present invention, when the number of uses of the ultrasonic transducer unit 300 is reached, it is replaced with a new, unused unit. In other words, the cartridge housing 200 is detachably connected to the main body housing 100, and the ultrasonic transducer 300 can be replaced after being used a predetermined number of times. Embodiments of the therapeutic ultrasound generator according to the present invention will be described in detail below. The main body housing 100 is equipped with a cartridge locking device 101 that allows the cartridge housing 200 to be attached and secured. The cartridge locking device 101 is elastically supported by a spring, and its wedge-shaped locking portion engages with a locking groove located inside the cartridge housing, thereby fixing the connected state of the cartridge housing 200. When pressed, the locking portion disengages from the locking groove, allowing the cartridge housing 200 to be separated. The cartridge housing 200 can be maintained or separated from the main housing 100 while connected by a known, releasable locking mechanism other than the cartridge locking device 101; therefore, a more detailed explanation is omitted. A handle portion 110, which can be grasped by the operator's hand, is located on one side of the main housing portion 100. The handle portion 110 includes a handle connecting portion 111 that is positioned curved on the upper side of the main body housing portion 100, and a handle body 112 that is positioned downward from the handle connecting portion 111. A practitioner can grip the handle main body 112 that bends from the handle connecting portion 111 and integrally extends downward, thereby easily bringing the window portion 203 of the cartridge housing portion 200 into close contact with the skin to perform a procedure. The handle portion 110 has a shape that bends toward the upper side and then extends downward after flexing, and is designed to allow a practitioner to grip the portion extending downward, that is, the handle main body 112, thereby minimizing the load applied to the practitioner during a procedure and enabling the practitioner to easily bring the window portion 203 of the cartridge housing portion 200 into close contact with the skin to perform the procedure. Meanwhile, the therapeutic ultrasound generator according to the present invention comprises: a cartridge housing portion 200 in which an ultrasound-transmissive window portion 203 is disposed at a lower part; and an ultrasound transducer portion 300 disposed inside the cartridge housing portion 200 and configured to generate ultrasound toward a lower side. The window portion 203 is made of a transparent or translucent material that transmits ultrasound, and is manufactured from a known ultrasound-transmissive material, so a more detailed description thereof will be omitted. The cartridge housing portion 200 comprises: an upper housing portion 201 separably coupled to the main body housing portion 100; and a housing sealing cap portion 202 separably coupled to a lower side of the upper housing portion 201. On the lower surface of the housing sealing cap portion 202, the window portion 203 is formed to have a size that allows ultrasound procedures to be performed in contact with the patient's skin. The cartridge housing portion 200 has a hermetically sealed internal structure, and the interior thereof is filled with an ultrasound transmission medium. By way of example, the ultrasound transmission medium is an insulating liquid, and the insulating liquid can be implemented by various modifications to known electrically non-conductive insulating liquids, so a more detailed description thereof will be omitted. The ultrasound transmission medium not only functions to transmit ultrasound, but also functions to cool the patient's skin via the window portion 203 that is in contact with the skin. At the upper part of the cartridge housing portion 200, a cartridge board portion 201a that seals the interior of the cartridge housing portion 200 is disposed, and on the upper surface of the cartridge board portion 201a, a medium supply protruding tube portion 210 and a medium discharge protruding tube portion 220 for circulating an ultrasonic transmission medium are disposed so as to protrude. On the upper surface of the ultrasonic transducer portion 300, there is provided an eccentric shaft portion 500 that is erected so as to be eccentric at the center of the body of the ultrasonic transducer portion 300 and is connected to the rotary motor portion 400. The eccentric shaft portion 500 is erected at the center of the cartridge housing portion 200 inside the cartridge housing portion 200, and the lower end thereof is connected to the upper surface of the ultrasonic transducer portion 300 at an eccentric position. A part of the eccentric shaft portion 500 on the upper end side protrudes from the upper surface of the cartridge board portion 201a, and when the cartridge housing portion 200 is coupled to the main body housing portion 100, the eccentric shaft portion 500 is connected to the rotary motor portion 400. The rotary motor portion 400 is connected to the eccentric shaft portion 500 and transmits rotational force to the eccentric shaft portion 500, thereby rotating the ultrasonic transducer portion 300 about the eccentric shaft portion 500. In the ultrasonic transducer portion 300, the lower surface that emits ultrasonic waves is positioned in a direction perpendicular to the window portion 203, and emits ultrasonic waves from a direction perpendicular to the window portion 203. For example, the rotary motor portion 400 is positioned inside the main body housing portion 100, and although not shown, the rotary motor portion 400 may be attached to the upper surface of the cartridge board portion 201a. When the cartridge housing portion 200 is coupled to the lower part of the main body housing portion 100, a part of the eccentric shaft portion 500 protruding from the upper surface of the cartridge board portion 201a is connected to the rotary motor portion 400. The rotary motor portion 400 is positioned inside the main body housing portion 100, and when the cartridge housing portion 200 is coupled to the lower part of the main body housing portion 100, the rotary motor portion 400 is connected to the eccentric shaft portion 500. Due to the service life of the ultrasonic transducer portion 300, the rotary motor portion 400 is not replaced together when the cartridge housing portion 200 is replaced, thereby reducing costs. Although not shown in the diagram, the rotary motor unit 400 may be attached to the cartridge housing unit 200 and may be replaced together with the cartridge housing unit 200 when the ultrasonic transducer unit 300 is replaced due to its service life. The eccentric shaft portion 500 is positioned to protrude from the upper surface of the cartridge board portion 201a, but is rotatable. The eccentric shaft portion 500 is rotatably positioned to penetrate the cartridge board portion 201a and can be implemented using a known sealing structure that seals the rotating shaft; therefore, a more detailed explanation is omitted. The eccentric shaft portion 500 includes a connecting shaft portion 510 that protrudes from the upper part of the cartridge housing portion 200 and is connected to the rotary motor portion 400, and the shaft of the rotary motor portion 400 is provided with a shaft adapter portion 410 into which the connecting shaft portion 510 is inserted and connected. The shaft adapter portion 410 has a shaft insertion portion located on its lower side, which is open to accommodate the connecting shaft portion 510. For example, the connecting shaft portion 510 is a shaft with a polygonal cross-section, and the shaft insertion portion is a polygonal insertion groove portion corresponding to the connecting shaft portion 510. The connecting shaft portion 510 is inserted into the polygonal insertion groove of the shaft insertion portion and rotates upon receiving rotational force from the rotating motor portion 400. Inside the main body housing 100, when the cartridge housing 200 is connected, there are supply pipe connection parts (not shown) and discharge pipe connection parts (not shown) that connect the medium supply protruding pipe 210 and the medium discharge protruding pipe 220 to a medium circulation unit (not shown) located inside the control body 1000 that controls the operation of the ultrasonic treatment handpiece. The control unit 1000 is a known ultrasonic therapy apparatus that includes a control unit for controlling the operation of the ultrasonic therapy handpiece and a medium circulation unit for circulating the ultrasonic transmission medium, and can be implemented in various modified forms, so a more detailed explanation is omitted. Although not shown in the diagram, the medium circulation section can be implemented in various ways using known cooling water circulation structures, including a medium storage tank, a medium supply line section connecting the medium storage tank and the supply pipe connection section 120, a medium discharge line section connecting the medium storage tank and the discharge pipe connection section 130, a valve located in the medium supply line section, and a medium cooling section located in the medium storage tank. Therefore, a more detailed explanation is omitted. The supply pipe connection section (not shown) includes a first protruding pipe insertion section into which the medium supply protruding pipe section 210 is inserted, and the discharge pipe connection section (not shown) includes a second protruding pipe insertion section into which the medium discharge protruding pipe section 220 is inserted. For example, the medium supply protruding pipe section 210 is inserted into the first protruding pipe insertion section and connected to the medium supply line section with the flow path open, and the medium discharge protruding pipe section 220 is inserted into the second protruding pipe insertion section and connected to the medium discharge line section with the flow path open. The medium supply protruding pipe section 210 and the supply pipe connection section (not shown), and the medium discharge protruding pipe section 220 and the discharge pipe connection section (not shown) can be modified in various ways to implement known pipe connection structures that connect two pipes to each other and include a valve that is opened when connected. When the cartridge housing section 200 is connected to the main housing section 100, the connecting shaft section 510 of the eccentric shaft section 500 is inserted into the shaft insertion section of the shaft adapter section 410, thereby connecting the eccentric shaft section 500 and the shaft 1 of the rotary motor section 400. The medium supply protruding pipe 210 is inserted into the first protruding pipe insertion section of the protruding pipe connecting section 120 and connected to the medium circulation section of the control body 1000. The medium discharge protruding pipe section 220 is inserted into the second protruding pipe insertion section of the discharge pipe connecting section 130 and connected to the medium circulation section of the control body 1000. Furthermore, the upper surface of the cartridge board section 201a is provided with a pair of first main power supply terminals 230 for supplying power to the ultrasonic transducer section 300. Although not shown in the figures, the main body housing section 100 is connected to a pair of first main power supply terminals 230, and a second main power supply terminal, which is connected to the control unit 1000 by a handpiece cable 1100, is located inside. For example, the first main power supply terminal 230 is a protruding terminal that protrudes from the upper surface of the cartridge housing portion 200, that is, from the upper surface of the cartridge board portion 201a, and the second main power supply terminal is an insertable terminal into which the first main power supply terminal 230 can be inserted and connected. When the cartridge housing 200 is connected to the main housing 100, a pair of first main power supply terminals 230 are inserted into a pair of second main power supply terminals and connected to each other, and the ultrasonic transducer 300 is connected to the control unit 1000 by the handpiece cable 1100, receiving power from the control unit 1000 and allowing its operation to be controlled. On the other hand, Figure 3 is a cross-sectional view showing one embodiment of the therapeutic ultrasound generator according to the present invention, Figure 4 is an enlarged cross-sectional view showing part A of Figure 3, and Figure 5 is a partially enlarged bottom perspective view showing one embodiment of the therapeutic ultrasound generator according to the present invention. An embodiment of the therapeutic ultrasound generator according to the present invention will be described in more detail below with reference to Figures 2 to 5. In one embodiment of the therapeutic ultrasound generator according to the present invention, the ultrasonic transducer unit 300 is connected to the rotary motor unit 400 by an eccentric shaft unit 500 that is eccentric from the center of the body of the ultrasonic transducer unit 300. The focal point of the ultrasonic wave moves in a circular path with a predetermined radius around the axis of the rotating motor section 400 when the ultrasonic transducer section 300 rotates eccentrically around the eccentric shaft section 500. The ultrasonic transducer unit 300 is connected at an eccentric position to an eccentric shaft unit 500 that is rotated by a rotary motor unit 400, and rotates on a plane. As a result, the focal point of the ultrasonic waves generated by the ultrasonic transducer unit 300 moves in a circular motion on the same plane. The ultrasonic transducer unit 300 irradiates the window unit 203 with ultrasonic waves from a direction perpendicular to the window unit 203. The ultrasonic wave generating surface of the ultrasonic transducer unit 300 is positioned parallel to the window unit 203 and irradiates ultrasonic waves perpendicular to the window unit 203. The ultrasonic wave focal point moves in a circular pattern on the plane as it rotates around an eccentric shaft 500 that is eccentric to the rotation center of the rotary motor unit 400. In other words, the therapeutic ultrasound generator according to the present invention moves the focal point of the ultrasound waves in a circular motion on the same plane with a predetermined radius while maintaining the focal point at a uniform depth within the skin, thereby forming a circular path for the focal point's movement on the plane, and thus uniformly applying energy within the focal point's movement radius. Furthermore, in the therapeutic ultrasound generator according to the present invention, the ultrasonic transducer section 300 is rotated around the eccentric shaft section 500 with the ultrasonic ultrasound generating surface of the ultrasonic transducer section 300 positioned alongside the window section 203, thereby forming a circular path for the focal point movement on a plane. This makes it easy to adjust the output of the ultrasound and allows for selective design of a narrow or wide focal point movement radius. On the other hand, one embodiment of the therapeutic ultrasound generator according to the present invention further includes a power supply protruding terminal portion 600 that protrudes from the upper side of the ultrasonic transducer portion 300 and supplies power to the ultrasonic transducer portion 300, and a power supply circuit board portion 700 that is located spaced apart from the upper side of the ultrasonic transducer portion 300 within the cartridge housing portion 200 and to which the power supply protruding terminal portion 600 is connected. On the lower surface of the power supply board section 700, there is a ring-shaped electrode pattern 710 to which a power cable connects and to which power is applied. When the ultrasonic transducer section 300 rotates around the eccentric shaft section 500, the power supply protruding terminal section 600 moves in a circular motion with its upper end connected to the ring-shaped electrode pattern 710, thereby stably supplying power to the ultrasonic transducer section 300. The ring-shaped electrode pattern 710 is electrically connected by a power cable to the first main power supply terminal 230 protruding from the upper surface of the cartridge board 201a, via terminals located through the power supply board 700. As a result, when the cartridge housing 200 is coupled to the main housing 100 of the ring-shaped electrode pattern 710, a pair of first main power supply terminals 230 are inserted into a pair of second main power supply terminals and connected to each other, and the handpiece cable 1100 connects to the control unit 1000, receiving power from the control unit 1000, and stably supplying power to the ultrasonic transducer unit 300 via the power supply protruding terminal 600. The power supply protruding terminal portion 600 is held in elastic contact with the ring-shaped electrode pattern 710, and as the ultrasonic transducer portion 300 rotates around the eccentric shaft portion 500, it moves in a circular motion while remaining stably connected to the ring-shaped electrode pattern 710. As an example, the power supply protruding terminal portion 600 includes a jig pin member 610 connected to a ring-shaped electrode pattern 710 and electrically connected to an ultrasonic transducer portion 300 by an electric wire, a pin insertion member 620 located on the upper surface of the ultrasonic transducer portion 300 and in which the jig pin member 610 is positioned to move up and down, and a pin support spring member 630 located inside the pin insertion member 620 and elastically supporting the jig pin member 610. The jig pin member 610 is elastically supported by the pin support spring member 630, and its upper end contacts the ring-shaped electrode pattern 710. When the ultrasonic transducer unit 300 rotates eccentrically around the eccentric shaft unit 500 by the rotary motor unit 400, the jig pin member 610, while elastically supported by the pin support spring member 630, moves in a circular motion along the ring-shaped electrode pattern 710 with its upper end in contact with the ring-shaped electrode pattern 710, thereby stably supplying power to the ultrasonic transducer unit 300. More specifically, the power supply protruding terminal portion 600 includes a cathode protruding terminal portion 600a and an anode protruding terminal portion 600b located at a distance different from that of the eccentric shaft portion 500, and the ring-shaped electrode pattern 710 includes a first electrode pattern 711 having a radius corresponding to the rotational radius of the cathode protruding terminal portion 600a, and a second electrode pattern 712 having a radius corresponding to the rotational radius of the anode protruding terminal portion 600b. The cathode protruding terminal portion 600a and the anode protruding terminal portion 600b contact the two first electrode patterns 711 and second electrode patterns 712, respectively, with different radii. The jig pin member 610 is positioned in an elastic contact state, and while contacting the ring-shaped first electrode patterns 711 and second electrode patterns 712, it moves in a circular motion, allowing for a stable power supply to the ultrasonic transducer portion 300. Furthermore, the ultrasonic transmission medium is an insulating liquid, and even if the power supply protruding terminal portion 600 is exposed inside the cartridge housing portion 200, there is no short circuit, and power can be stably supplied into the ultrasonic transducer portion 300 with the cathode protruding terminal portion 600a and anode protruding terminal portion 600b connected to the two exposed ring-shaped electrode patterns 710, namely the first electrode pattern 711 and the second electrode pattern 712. Furthermore, one embodiment of the therapeutic ultrasound generator according to the present invention may further include a substrate position fixing board portion 800 located between the cartridge board portion 201a and the power supply substrate portion 700 to support the position of the power supply substrate portion 700, a plurality of first board fixing portions 810 whose ends are fixed to the cartridge board portion 201a and the substrate position fixing board portion 800 to support the position of the substrate position fixing board portion 800, and a plurality of second board fixing portions 820 whose ends are fixed to the substrate position fixing board portion 800 and the power supply substrate portion 700 to support the position of the power supply substrate 700. The eccentric shaft portion 500 penetrates the substrate position fixing board portion 800 and the power supply board portion 700 and is connected to the upper surface of the ultrasonic transducer portion 300 at an eccentric position. The board section 800 for fixing the position of the circuit board is fixed in position by being connected to the upper surface of the cartridge housing section 200, i.e., the cartridge board section 201a, by a plurality of first board fixing sections 810, and the power supply circuit board section 700 is stably fixed in position by being connected to the board section 800 for fixing the position of the circuit board by a plurality of second board fixing sections 820. Multiple first board fixing parts 810 and multiple second board fixing parts 820 are formed in a hollow tubular shape, and a power cable connecting the ring-shaped electrode pattern 710 and the first main power supply terminal 230 can be wired inside. The power cable connecting the ring-shaped electrode pattern 710 and the first main power supply terminal 230 does not need to be exposed to the outside, as it is routed through the interior of the multiple first board fixing parts 810 and the multiple second board fixing parts 820. Figure 6 is a partially enlarged view showing another embodiment of the therapeutic ultrasound generator according to the present invention. Referring to Figure 6, another embodiment of the therapeutic ultrasound generator according to the present invention further includes an ultrasonic transducer movement unit 900, to which an ultrasonic transducer unit 300 is movably located at the bottom and an eccentric shaft unit 500 is connected to the upper side. The ultrasonic transducer movement unit 900 moves the ultrasonic transducer unit 300 linearly in the circumferential direction from the rotation center of the rotary motor unit 400 on its lower surface, and can adjust the rotation radius of the ultrasonic transducer unit 300 with respect to the rotation center of the rotary motor unit 400. The power supply protruding terminal section 600 is attached to the ultrasonic transducer moving section 900, which is connected to the rotary motor section 400 via the eccentric shaft section 500, and the ultrasonic transducer section 300 is positioned below it so as to be able to move horizontally in a straight line. The ultrasonic transducer section 300 moves linearly by the ultrasonic transducer movement section 900, and the radius of rotation can be adjusted by the eccentric shaft section 500. In other words, in another embodiment of the therapeutic ultrasound generator according to the present invention, the ultrasonic transducer section 300 can be moved bidirectionally in a linear direction on a plane passing through the eccentric shaft section 500, thereby allowing for diverse adjustment of the movement radius of the focal point, which is formed in a circular shape on the plane. Another embodiment of the therapeutic ultrasound generator according to the present invention allows for various adjustments to the movement radius of the focal point, which is formed in a circular shape on a plane, depending on the size of the treatment site or the therapeutic effect. This invention applies energy uniformly to the treatment site by moving the ultrasound focal point in a plane at a uniform depth within the skin. However, by forming the ultrasound focal point into a circle with a constant radius at a uniform depth within the skin, the energy can be applied uniformly within the radius, thereby improving treatment performance. The present invention allows for easy adjustment of the ultrasonic output and further improvement of the therapeutic effect by rotating the ultrasonic transducer unit 300 at an eccentric position on a plane, thereby moving the focal point of the ultrasound in a circular motion on the plane, and also increases the versatility of the treatment by widening the range of the focal point movement radius. Furthermore, the present invention simplifies the structure for moving the focal point of the ultrasonic waves generated in the ultrasonic transducer section 300 in a circular motion on the same plane, thereby minimizing the load on the motor and reducing manufacturing costs. The present invention is not limited to the embodiments described above, and can be implemented with various modifications without departing from the spirit of the invention, and this is clearly included in the configuration of the present invention. [Explanation of Symbols]

[0008] 100 Main housing section 101 Cartridge Locking Tool 110 Handle section 111 Handle connection part 112 Handle body 200 Cartridge housing section 201 Upper housing section 201a Cartridge board section 202 Housing sealing cap section 203 Window Section 210 Medium supply protruding pipe section 220 Medium discharge protruding pipe section 300 Ultrasonic Transducer Section 400 RPM motor section 410 Axis adapter section 500 Eccentric shaft part 510 Connecting shaft part 600 Protruding terminal for power supply 600a Cathode protruding terminal part 600b Anode protruding terminal part 610 Jig pin member 620 Pin insertion member 630 Pin support spring member 700 Power supply board section 710 Ring-shaped electrode pattern 711 First electrode pattern 712 Second electrode pattern 800 Board section for fixing the position of the circuit board 810 First board fixing part 820 Second board fixing part 900 Ultrasonic transducer moving part 1000 Control Unit

Claims

1. A cartridge housing section having a window on its lower surface through which ultrasound waves pass and come into contact with the skin, The cartridge housing includes an ultrasonic transducer that is positioned to rotate on a flat surface and generates ultrasonic waves, A rotary motor unit that rotates the ultrasonic transducer unit, An eccentric shaft portion is connected to the upper surface of the ultrasonic transducer portion eccentrically with respect to the center of the body of the ultrasonic transducer portion, and rotates upon receiving the rotational force of the rotary motor portion, The ultrasonic transducer unit rotates around the eccentric shaft, and the focal point of the ultrasonic waves generated by the ultrasonic transducer unit moves in a circular motion on the same plane. A power supply terminal portion that protrudes from the upper side of the ultrasonic transducer portion and supplies power to the ultrasonic transducer portion, and A therapeutic ultrasound generator, further comprising a power supply circuit board located spaced apart from the upper side of the ultrasonic transducer within the cartridge housing, to which the power supply protruding terminal is connected.

2. The cartridge housing has a sealed internal structure and is filled with an ultrasonic transmission medium. The therapeutic ultrasound generator according to claim 1, characterized in that the ultrasonic transmission medium is an insulating liquid.

3. On the lower surface of the power supply board, there is a ring-shaped electrode pattern connected by a power cable to which power is applied. The therapeutic ultrasound generator according to claim 1, characterized in that the power supply protruding terminal portion moves in a circular motion along the ring-shaped electrode pattern while elastically contacting the ring-shaped electrode pattern.

4. The aforementioned power supply protruding terminal portion is, A jig pin member connected to the ring-shaped electrode pattern and electrically connected to the ultrasonic transducer section by an electric wire, A pin insertion member is located on the upper surface of the ultrasonic transducer and is positioned so that the jig pin member can move up and down, The therapeutic ultrasound generator according to claim 3, further comprising a pin support spring member located within the pin insertion member and elastically supporting the jig pin member.

5. A board position fixing board portion is located between the upper surface of the cartridge housing portion and the power supply board portion, and supports the position of the power supply board portion. Multiple first board fixing parts, the upper surface of the cartridge housing and the board fixing part, with both ends fixed to the board fixing part, and supporting the position of the board fixing part, The therapeutic ultrasound generator according to claim 3, further comprising a plurality of second board fixing portions, the ends of which are fixed to the board portion for fixing the position of the substrate and the power supply substrate, and which support the position of the power supply substrate.

6. The therapeutic ultrasound generator according to claim 5, characterized in that the plurality of first board fixing parts and the plurality of second board fixing parts are formed in a hollow tubular shape, and a power cable connecting the ring-shaped electrode pattern and the first main power supply terminal protruding from the upper part of the cartridge housing is wired inside.

7. The therapeutic ultrasound generator according to claim 1, further comprising an ultrasonic transducer movement section to which the ultrasonic transducer section is movably positioned at the lower part and to which the eccentric shaft section is connected at the upper part, thereby enabling adjustment of the focal radius on a plane.

8. The main body housing is connected to the control unit by a cable for the handpiece, A cartridge housing portion is detachably connected to the main body housing portion and has a window portion on its lower surface through which ultrasonic waves pass, which comes into contact with the skin. The cartridge housing includes an ultrasonic transducer that is positioned to rotate on a flat surface and generates ultrasonic waves, A rotary motor unit that rotates the ultrasonic transducer unit, An eccentric shaft portion is connected to the upper surface of the ultrasonic transducer portion eccentrically with respect to the center of the body of the ultrasonic transducer portion, and rotates upon receiving the rotational force of the rotary motor portion, The ultrasonic transducer unit rotates around the eccentric shaft, and the focal point of the ultrasonic waves generated by the ultrasonic transducer unit moves in a circular motion on the same plane. A power supply terminal portion that protrudes from the upper side of the ultrasonic transducer portion and supplies power to the ultrasonic transducer portion, and An ultrasonic treatment handpiece further comprising a power supply circuit board portion located spaced apart from the upper side of the ultrasonic transducer portion within the cartridge housing portion, to which the power supply protruding terminal portion is connected.

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