KR102546830B1 - Ultrasonic generator - Google Patents

Abstract

The present invention includes an ultrasonic generator; a cartridge housing containing a fluid medium for transmitting ultrasonic waves generated by the ultrasonic generator; and a fluid circulation unit that circulates and cools the fluid medium accommodated in the cartridge housing and supplies it to the cartridge housing, wherein the fluid circulation unit operates as long as the fluid medium accommodated in the cartridge housing is alternately drawn in or drawn out. It relates to an ultrasonic generator comprising a pair of cylinders.

Description

Ultrasonic generator {ULTRASONIC GENERATOR}

The present invention relates to an ultrasonic generator that circulates and cools a fluid medium contained in a cartridge housing.

Ultrasound refers to a wave having a frequency of 20 kHz or higher, and is used in a variety of ways, including diagnosis and treatment of affected areas in the medical field, as well as skin care.

In particular, High Intensity Focused Ultrasound (HIFU), which is a form of high-intensity focused ultrasound, is different from laser and RF (Radio Frequency) high frequency, non-invasively without causing any damage to the skin surface. depth can be focused. As a result, while a rapid temperature rise is induced at the target depth of the skin, coagulative necrosis of cells occurs without leaving side effects on various affected parts of the skin. These necrotic cells are naturally removed by the body's mechanism for repairing damaged parts.

Meanwhile, a conventional ultrasonic generator includes a cartridge housing in which a fluid medium for transmitting ultrasonic waves is accommodated, and an ultrasonic generator built into the cartridge housing to emit ultrasonic waves.

If the operation of the ultrasonic generator continues, the temperature of the ultrasonic generator and the fluid medium rises, causing damage to the ultrasonic generator.

Domestic Patent Publication No. 10-2019-0115586 (2019.10.14)

The present invention has been made to solve the above problems, and an object of the present invention is to circulate and cool a fluid medium accommodated in a cartridge housing, so that the temperature of the ultrasonic generator and the skin temperature of the patient in contact with the ultrasonic generator can be kept constant. It is to provide an ultrasonic generator with

Another object of the present invention is to provide an ultrasonic generator capable of preventing deformation of a film provided in a cartridge housing by circulating a fluid medium accommodated in a cartridge housing at a constant pressure.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

An ultrasonic generator according to an embodiment of the present invention includes an ultrasonic generator; a cartridge housing containing a fluid medium for transmitting ultrasonic waves generated by the ultrasonic generator; and a fluid circulation unit that circulates and cools the fluid medium accommodated in the cartridge housing and supplies it to the cartridge housing, wherein the fluid circulation unit operates as long as the fluid medium accommodated in the cartridge housing is alternately drawn in or drawn out. It is characterized by including a pair of cylinders.

In addition, the fluid circulation unit may include a cooling unit for cooling the pair of cylinders.

In addition, the fluid circulation unit may include a pair of plungers provided to be reciprocally movable in the pair of cylinders; and a driving unit for driving the pair of plungers to operate the pair of plungers in opposite directions.

Also, a volume corresponding to a stroke in which the plunger reciprocates within the cylinder may be the same as a volume of the fluid medium accommodated in the cartridge housing.

In addition, the driving unit may include a driving actuator; a pinion gear that is coupled to the driving actuator and rotates; and a pair of rack gears respectively provided on the pair of plungers and disposed facing each other with the pinion gear interposed therebetween to reciprocate in opposite directions by rotation of the pinion gear.

In addition, the cooling unit may include a water jacket in contact with at least one of the cylinders and circulating a cooling fluid that cools the fluid medium accommodated in the cylinders; and a cooling device for circulating and cooling the cooling fluid accommodated in the water jacket.

The cooling unit may further include a Peltier element interposed between the cylinder and the water jacket.

In addition, the cooling unit may include a heat dissipation plate in contact with the cylinder.

In addition, the cooling unit may include a cooling fan for blowing the cylinder.

In addition, the cooling unit may further include a Peltier element interposed between the cylinder and the heat sink.

In addition, the ultrasonic generator may include one or more ultrasonic transducers.

In addition, a distance sensing unit provided on the handpiece or the cartridge housing and measuring a distance from the skin surface; and a control unit operating the ultrasonic generator when the measured data value of the distance sensing unit matches a preset value.

In addition, a motion sensing unit provided in the handpiece or the cartridge housing and measuring motion; and a control unit for stopping the ultrasonic generator when no movement is detected by the motion sensing unit.

Other specific details of the invention are included in the detailed description and drawings.

The ultrasonic generator according to an embodiment of the present invention may circulate and cool the fluid medium accommodated in the cartridge housing to maintain a constant temperature of the ultrasonic generator and the temperature of the patient's skin in contact with the ultrasonic generator.

An ultrasonic generator according to an embodiment of the present invention circulates a fluid medium accommodated in a cartridge housing at a constant pressure to prevent deformation of a film provided in the cartridge housing.

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 below.

1 is a front view showing an ultrasonic generator according to a first embodiment of the present invention.
2 is a perspective view showing an ultrasonic generator according to a first embodiment of the present invention.
3 is a cross-sectional view showing an ultrasonic generator according to a first embodiment of the present invention.
4 is an operation diagram showing an example of a cooling process of a fluid medium of the ultrasonic generator according to the first embodiment of the present invention.
5 is an operation diagram showing another example of a cooling process of a fluid medium of the ultrasonic generator according to the first embodiment of the present invention.
6 is a front view showing an ultrasonic generator according to a second embodiment of the present invention.
7 is a front view showing an ultrasonic generator according to a third embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, only these embodiments are intended to complete the disclosure of the present invention, and are common in the art to which the present invention belongs. It is provided to fully inform the person skilled in the art of the scope of the invention, and the invention is only defined by the scope of the claims.

Terminology used herein is for describing the embodiments and is not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprises" and/or "comprising" does not exclude the presence or addition of one or more other elements other than the recited elements. Like reference numerals throughout the specification refer to like elements, and “and/or” includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various components, these components are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first element mentioned below may also be the second element within the technical spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings commonly understood by those skilled in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless explicitly specifically defined.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view showing an ultrasonic generator according to a first embodiment of the present invention, Figure 2 is a perspective view showing an ultrasonic generator according to a first embodiment of the present invention, Figure 3 is a first embodiment of the present invention It is a cross-sectional view showing the ultrasonic generator according to the

1 to 3, the ultrasonic generator according to the first embodiment of the present invention includes a hand piece 100, an ultrasonic generator 200, a cartridge housing 300, and a fluid circulation unit 400. include

Overall, the handpiece 100 is for the user to hold by hand, the ultrasonic generator 200 is accommodated in the cartridge housing 300 to generate ultrasonic waves, and the cartridge housing 300 is in the ultrasonic generator 200 A fluid medium for transmitting generated ultrasonic waves is accommodated, and the fluid circulation unit 400 circulates and cools the fluid medium accommodated in the cartridge housing 300 and supplies it to the cartridge housing 300 .

The handpiece 100 is a basic body and can be used as a handle for a user's grip, and a cartridge housing 300 to be described later is detachably coupled to one side of the handpiece 100. Inside the cartridge housing 300, an ultrasonic generator 200 for generating ultrasonic waves is disposed. Therefore, the user moves the handpiece 100 so that the cartridge housing 300 is in close contact with the skin surface while holding the handpiece 100, the ultrasonic waves generated from the ultrasonic generator 200 are directed to the target depth of the skin. By irradiation, ultrasonic medical procedures can be performed.

A cable connected to the RF board for applying RF current to the ultrasonic generator 200 may be provided inside the handpiece 100 . The RF board may be accommodated in the main body (not shown) or the handpiece 100, and may intermittently or continuously apply RF current to the ultrasonic generator 200.

The ultrasonic generator 200 is disposed inside the cartridge housing 300 and generates ultrasonic waves. As described above, the ultrasonic generator 200 may receive electrical signals from the RF board through the cable of the handpiece 100 and focus the ultrasonic waves to a specific location. Meanwhile, the ultrasonic generator 200 may have a built-in transducer for focusing ultrasonic waves at a specific location.

The ultrasonic generator 200 may be detachably coupled to the cartridge housing 300 . For example, the ultrasonic generator 200 may be screwed to the cartridge housing 300 . In addition, the ultrasonic generator 200 may be detachably coupled to the cartridge housing 300 through protrusions and grooves.

The ultrasonic generator 200 may include one or more transducers. Therefore, when ultrasonic waves are generated from one or more ultrasonic generators 200, the fluid medium accommodated in the cartridge housing 300 is rapidly heated, and cooling of the fluid medium is required. Meanwhile, a plurality of transducers may be provided, and as shown in FIGS. 2 and 3 , the plurality of transducers may be disposed in the cartridge housing 300 in a lattice form, but the present invention is not particularly limited.

The cartridge housing 300 is a kind of case accommodating the ultrasonic generator 200 and is detachably installed on one side of the handpiece 100.

A fluid medium for transmitting ultrasonic waves generated by the ultrasonic generator 200 may be accommodated inside the cartridge housing 300 . Here, the fluid medium may be distilled water, degassing liquid, or silicon, but is not particularly limited.

On one side of the cartridge housing 300 facing the skin surface, as shown in FIGS. 2 and 3 , a film 310 through which ultrasonic waves generated by the ultrasonic generator 200 may pass may be provided.

The fluid circulation unit 400 serves to circulate and cool the fluid medium accommodated in the cartridge housing 300 and supply it to the cartridge housing 300 . As a result, the fluid medium accommodated in the cartridge housing 300 can be cooled by circulation cooling of the fluid medium of the fluid circulation unit 400 .

The fluid circulation unit 400 may include a pair of cylinders 410 and 420, a cooling unit 500a, a pair of plungers 430 and 440, and a driving unit 470. Overall, the pair of cylinders 410 and 420 alternately introduce or withdraw the fluid medium accommodated in the cartridge housing 300, and the cooling unit 500a cools the pair of cylinders 410 and 420, and the pair of plungers ( 430 and 440 are provided to reciprocate in a pair of cylinders 410 and 420, and the drive unit 470 can drive the pair of plungers 430 and 440 to operate in opposite directions. Here, a volume corresponding to a stroke in which the plungers 430 and 440 reciprocate in the cylinders 410 and 420 may be the same as the volume of the fluid medium accommodated in the cartridge housing 300 . And, as shown in FIG. 4, each cylinder 410, 420 has a larger volume than the volume of the fluid medium accommodated in the cartridge housing 300, and more spare fluid than the fluid medium accommodated in the cartridge housing 300. It may also contain a fluid medium.

Hereinafter, for convenience of description, a pair of cylinders will be defined as the first cylinder 410 and the second cylinder 420, respectively, and the pair of plungers will be defined as the first plunger 430 and the second plunger 440, respectively. to be defined as

The first cylinder 410 is connected to one side of the cartridge housing 300, and a fluid medium is accommodated in the first cylinder 410. And, inside the first cylinder 410, the first plunger 430 is provided to be reciprocating, and the fluid medium accommodated in the first cylinder 410 by the reciprocating movement of the first plunger 430 is the cartridge housing ( 300), or the fluid medium accommodated in the cartridge housing 300 may be sucked into the first cylinder 410.

One side of the first cylinder 410 and the cartridge housing 300 may be selectively connected through a first pipe 450 .

The first pipe 450 may include a flexible material. One side of the first pipe 450 may be detachably connected to one side of the cartridge housing 300 and the other side of the first pipe 450 may be detachably connected to the first cylinder 410 . At this time, a first inlet 320 may be provided on one side of the cartridge housing 300, and a second inlet 411 may be provided on the first cylinder 410, and one side of the first pipe 450 may be provided. It can be detachably connected to the first inlet 320, and the other side of the first pipe 450 can be detachably connected to the second inlet 411.

On the other hand, the first inlet 320 may be provided on the opposite surface of the cartridge housing 300 facing the first cylinder 410, the second inlet 411 is the first cylinder opposite to the cartridge housing 300 It may be provided on the opposite side of (410).

The second cylinder 420 is connected to the other side of the cartridge housing 300, and a fluid medium is accommodated in the second cylinder 420. And, the inside of the second cylinder 420, the second plunger 440 is provided to be reciprocating, and the fluid medium accommodated in the second cylinder 420 by the reciprocating movement of the second plunger 440 is a cartridge housing ( 300), or the fluid medium accommodated in the cartridge housing 300 may be sucked into the second cylinder 420.

The second cylinder 420 and the other side of the cartridge housing 300 may be selectively connected through a second pipe 460 .

The second pipe 460 may include a flexible material. One side of the second pipe 460 may be detachably connected to the other side of the cartridge housing 300, and the other side of the second pipe 460 may be detachably connected to the second cylinder 420. At this time, a third inlet 330 may be provided on the other side of the cartridge housing 300, and a fourth inlet 421 may be provided in the second cylinder 420, one side of the second pipe 460 It can be detachably connected to the third inlet 330, and the other side of the first pipe 450 can be detachably connected to the fourth inlet 421.

On the other hand, the third inlet 330 may be provided on the opposite surface of the cartridge housing 300 facing the second cylinder 420, the fourth inlet 421 is the second cylinder opposite to the cartridge housing 300 It may be provided on the opposite side of (420).

The cooling unit 500a may further include a water jacket 510 and a cooling device 530 .

The water jacket 510 is in contact with at least one of the first cylinder 410 and the second cylinder 420, and a cooling fluid for cooling the fluid medium accommodated in at least one of the first cylinder 410 and the second cylinder is provided. can be cycled.

The cooling device 530 circulates and cools the cooling fluid accommodated in the water jacket 510. To this end, the cooling device 530 may include a circulation pump (not shown) circulating the cooling fluid accommodated in the water jacket 510 and a cooling system (not shown) cooling the cooling fluid accommodated in the circulation pump.

The first plunger 430 is provided to be reciprocally movable in the first cylinder 410 . When the first plunger 430 moves in the direction of discharging the fluid medium, the fluid medium accommodated in the first cylinder 410 may be discharged to the cartridge housing 300 . In addition, when the first plunger 430 moves in the direction of sucking the fluid medium, negative pressure is formed in the first cylinder 410 so that the fluid medium accommodated in the cartridge housing 300 is easily sucked into the first cylinder 410. can

The second plunger 440 is provided to be reciprocally movable in the second cylinder 420 . When the second plunger 440 moves in the direction of discharging the fluid medium, the fluid medium accommodated in the second cylinder 420 may be discharged to the cartridge housing 300 . In addition, when the second plunger 440 moves in the direction of sucking the fluid medium, negative pressure is formed in the second cylinder 420 so that the fluid medium accommodated in the cartridge housing 300 is easily sucked into the second cylinder 420. can

The driver 470 may drive the first plunger 430 and the second plunger 440 so that the first plunger 430 and the second plunger 440 operate oppositely. The driving unit 470 may include a driving actuator 474 .

For example, the drive actuator 474 may move the first plunger 430 in a direction of discharging the fluid medium, and at the same time, move the second plunger 440 in a direction of sucking the medium. . At this time, as the first plunger 430 moves in the direction of discharging the fluid medium, the fluid medium accommodated in the first cylinder 410 can be discharged to the cartridge housing 300, and at the same time, the second plunger 440 ) As the fluid medium is transferred in the direction of sucking the fluid medium, the fluid medium accommodated in the cartridge housing 300 can be sucked into the second cylinder 420. At this time, the volume corresponding to the stroke in which the first plunger 430 moves in the first cylinder 410 may be the same as the volume of the fluid medium accommodated in the cartridge housing 300, and in the second cylinder 420 The volume corresponding to the stroke in which the second plunger 440 moves may also be the same as the volume of the fluid medium accommodated in the cartridge housing 300 .

Additionally, the drive actuator 474 may move the second plunger 440 in a direction of discharging the fluid medium, and at the same time, move the first plunger 430 in a direction of sucking the fluid medium. At this time, as the second plunger 440 moves in the direction of discharging the fluid medium, the fluid medium accommodated in the second cylinder 420 can be discharged to the cartridge housing 300, and at the same time, the first plunger 430 As ) is transported in the direction of sucking the fluid medium, the fluid medium accommodated in the cartridge housing 300 can be sucked into the first cylinder 410 . At this time, the volume corresponding to the stroke in which the first plunger 430 moves in the first cylinder 410 may be the same as the volume of the fluid medium accommodated in the cartridge housing 300, and in the second cylinder 420 The volume corresponding to the stroke in which the second plunger 440 moves may also be the same as the volume of the fluid medium accommodated in the cartridge housing 300 .

On the other hand, the driving unit 470 is provided on the pinion gear 471 coupled to the driving actuator 474 and rotating, the first plunger 430 and the second plunger 440, respectively, with the pinion gear 471 interposed therebetween It may include a pair of rack gears 472 and 473 that are disposed opposite to each other and linearly reciprocate in opposite directions by rotation of the pinion gear 471 . Hereinafter, for convenience of description, a pair of rack gears will be defined as a first rack gear 472 and a second rack gear 473, respectively.

The driving actuator 474 may be a driving motor, and the pinion gear 471 may be coupled to a driving shaft of the driving motor to rotate.

One side of the pinion gear 471 is gear-coupled with the first rack gear 472, and the other side of the pinion gear 471 is gear-coupled with the second rack gear 473. Here, when the pinion gear 471 rotates forward, the first rack gear 472 may move in a direction in which the fluid medium accommodated in the first cylinder 410 is discharged to the cartridge housing 300, and at the same time, the second The rack gear 473 may move in a direction in which the fluid medium is sucked into the second cylinder 420 from the cartridge housing 300 . Additionally, when the pinion gear 471 is rotated in reverse, the first rack gear 472 can move the fluid medium from the cartridge housing 300 in the direction to the first cylinder 410, and at the same time, the second rack gear 473 may be moved in a direction in which the fluid medium accommodated in the second cylinder 420 is discharged to the cartridge housing 300 .

The first rack gear 472 may be provided on an opposite surface of the first plunger 430 facing the second plunger 440 . Here, one end of the first plunger 430 may be inserted into the first cylinder 410, and the other end of the first plunger 430 may be exposed to the outside of the first cylinder 410. A first rack gear 472 may be provided along the longitudinal direction of the first plunger 430 from the other end of the first plunger 430 exposed to the outside of the cylinder 410 .

The second rack gear 473 may be provided on an opposite surface of the second plunger 440 facing the first plunger 430 . Here, one end of the second plunger 440 may be inserted into the second cylinder 420, and the other end of the second plunger 440 may be exposed to the outside of the second cylinder 420. A second rack gear 473 may be provided along the longitudinal direction of the second plunger 440 from the other end of the second plunger 440 exposed to the outside of the cylinder 420 .

The ultrasonic generator according to the first embodiment of the present invention may further include a distance sensing unit 600, a motion sensing unit 700, and a control unit.

The distance sensing unit 600 is provided on the hand piece 100 or the cartridge housing 300 and can measure the distance to the skin surface. Then, the distance sensing unit 600 transmits data obtained by measuring the distance to the skin surface to the controller. The distance sensing unit 600 is not particularly limited, but an illuminance sensor, a proximity sensor, a distance sensor, and the like may be used.

The motion sensing unit 700 may be provided on the hand piece 100 or the cartridge housing 300 and measure the movement of at least one of the hand piece 100 and the cartridge housing 300 . Thereafter, the motion sensing unit 700 transmits data obtained by measuring the distance to the skin surface to the controller. The motion sensing unit 700 is not particularly limited, but a gyro sensor, an infrared sensor, a magnetic field sensor, and the like may be used.

The control unit is provided in the handpiece 100 or the cartridge housing 300, and controls whether the ultrasonic generator 200 operates according to the sensing of the distance sensing unit 600 and the sensing of the motion sensing unit 700. do

The controller may operate the ultrasonic generator 200 when the measured data value of the distance sensing unit 600 matches a preset value. Specifically, the control unit calculates the distance from the ultrasonic generator 200 to the skin surface using the measurement data of the distance sensor 600, and the calculated value is the distance from the ultrasonic generator 200 to the skin surface. When it matches the preset value, the ultrasonic generator 200 may be operated. That is, the control unit uses the measurement data of the distance sensing unit 600, and only when the current distance from the ultrasonic generator 200 to the skin surface coincides with the preset distance from the ultrasonic generator 200 to the skin surface, The ultrasonic generator 200 may be operated. As a result, when the focus of the ultrasound irradiated from the ultrasound generator 200 is located at a preset depth of the deep skin, as the ultrasound generator 200 operates, the focus of the ultrasound irradiated from the ultrasound generator 200 This can be prevented from being delivered to a depth that is out of the preset depth of the deep skin.

The controller may stop the ultrasonic generator 200 when motion is not sensed by the motion sensing unit 700 . As a result, in a state where the handpiece 100 or the cartridge housing 300 is stopped, the focus of the ultrasonic waves irradiated from the ultrasonic generator 200 is concentrated on a specific depth of the deep skin, preventing the occurrence of lacerations in the deep skin. It can be prevented.

Hereinafter, the cooling process of the fluid medium of the ultrasonic generator according to the first embodiment of the present invention will be described.

4 is an operation diagram showing an example of a cooling process of a fluid medium of an ultrasonic generator according to a first embodiment of the present invention, and FIG. 5 is a cooling of a fluid medium of an ultrasonic generator according to a first embodiment of the present invention. It is an operation diagram showing another example of the process.

As shown on the left side of FIG. 4, first, the ultrasonic generator 200 is in a state in which the first plunger 430 is located in the direction of discharging the fluid medium and the second plunger 440 is located in the direction of sucking the fluid medium. When ultrasonic waves are generated through ), the fluid medium accommodated in the cartridge housing 300 is heated, and the ultrasonic waves are focused on a specific location on the skin.

When the fluid medium accommodated in the cartridge housing 300 is heated to a certain temperature or higher, the drive actuator 474 is driven in the forward direction, and as shown on the right side of FIG. At the same time, the second plunger 440 transfers the fluid medium in the direction of discharging.

As a result, as the first plunger 430 is transferred in the direction of sucking the fluid medium, the fluid medium heated and accommodated in the cartridge housing 300 is sucked into the first cylinder 410, and at the same time, the second plunger 440 As is transported in the direction of discharging the fluid medium, the fluid medium cooled in the second cylinder 420 may be discharged to the cartridge housing 300 .

At this time, the heated fluid medium introduced into the second cylinder 420 is cooled to a certain temperature or less by the cooling unit 500a as shown in the left side of FIG. 5 .

And, when the fluid medium accommodated in the cartridge housing 300 is heated to a certain temperature or higher, the driving actuator 474 is driven in the reverse direction, and as shown on the right side of FIG. 5, the first plunger 430 discharges the fluid medium At the same time, the second plunger 440 transfers the fluid medium in the direction of suction.

As a result, as the second plunger 440 is transported in the direction of sucking the fluid medium, the fluid medium heated and accommodated in the cartridge housing 300 is sucked into the second cylinder 420, and at the same time, the first plunger 430 As is transported in the direction of discharging the fluid medium, the fluid medium cooled in the first cylinder 410 may be discharged to the cartridge housing 300 .

At this time, the heated fluid medium introduced into the second cylinder 420 is cooled to a certain temperature or less by the cooling unit 500a.

As this process is repeated, the fluid medium accommodated in the cartridge housing 300 is circularly cooled, and the temperature of the ultrasonic generator 200 and the skin temperature of the patient in contact with the ultrasonic generator are kept constant, and the ultrasonic generator ( 200) can transmit ultrasound to the skin.

In addition, by circulating the fluid medium accommodated in the cartridge housing 300 at a certain pressure, deformation of the film provided in the cartridge housing 300 can be prevented.

6 is a front view showing an ultrasonic generator according to a second embodiment of the present invention.

As shown in FIG. 6 , in the ultrasonic generator according to the second embodiment of the present invention, the cooling unit 500b may include a water jacket 510, a cooling device 530, and a Peltier element 540. Here, since the water jacket 510 and the cooling device 530 are the same as those of the first embodiment, a detailed description thereof will be omitted.

The Peltier element 540 is a device in which an N-type semiconductor element and a P-type semiconductor element are connected between a first metal plate and a second metal plate, and a Peltier effect occurs in which heat moves from the first metal plate to the second metal plate when power is supplied. all.

The Peltier element 540 is interposed between the cylinders 410 and 420 and the water jacket 510, and the first metal plate contacts the cylinders 410 and 420 and the second metal plate contacts the water jacket 510. Accordingly, when power is supplied, as the heat of the cylinders 410 and 420 moves from the first metal plate to the second metal plate, the cylinders 410 and 420 may be cooled.

7 is a front view showing an ultrasonic generator according to a third embodiment of the present invention.

As shown in FIG. 7 , unlike the first embodiment, in the ultrasonic generator according to the third embodiment of the present invention, the cooling unit 500c includes a heat sink 550 and a cooling fan 560. can

The heat dissipation plate 550 may cool the cylinders 410 and 420 by contacting the cylinders 410 and 420 and absorbing heat from the cylinders 410 and 420 to dissipate heat into the atmosphere. A plurality of heat dissipation fins 551 may be arranged side by side in a line on the heat dissipation plate 550 .

The cooling fan 560 may cool the cylinders 410 and 420 by blowing air. Here, a silicon fan, a radial fan, or a sirocco fan may be used as the cooling fan 560, and the present invention is not particularly limited thereto.

The cooling fan 560 may be coupled to the heat sink 550 .

On the other hand, although not shown in the drawing, the Peltier element 540 is interposed between the cylinders 410 and 420 and the heat sink 550, the first metal plate contacts the cylinders 410 and 420, and the second metal plate is the heat sink ( 550) to contact. Accordingly, when power is supplied, as the heat of the cylinders 410 and 420 moves from the first metal plate to the second metal plate, the cylinders 410 and 420 may be cooled. Furthermore, heat transferred to the second metal plate may be dissipated through the heat dissipation plate 550 .

According to the present invention, the ultrasonic generator according to an embodiment of the present invention circulates and cools the fluid medium accommodated in the cartridge housing 300, so that the temperature of the ultrasonic generator 200 and the skin temperature of the patient in contact with the ultrasonic generator can be kept constant.

In addition, the ultrasonic generator according to an embodiment of the present invention may prevent deformation of the film 310 provided in the cartridge housing 300 by circulating the fluid medium accommodated in the cartridge housing 300 at a constant pressure.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: handpiece
200: ultrasonic generator
300: cartridge housing
310: film
320: first inlet
330: third inlet
400: fluid circulation unit
410: first cylinder
411: second inlet
420: second cylinder
421: 4th inlet
430: first plunger
440: second plunger
450: first pipe
460: second pipe
470: driving unit
471: pinion gear
472: first rack gear
473: second rack gear
474 drive actuator
500a, 500b, 500c, 500d: cooling unit
510: water jacket
530: cooling device
540: Peltier element
550: heat sink
551: heat dissipation fin
560: cooling fan
600: distance sensing unit
700: motion sensing unit

Claims (13)

ultrasonic generator;
a cartridge housing containing a fluid medium for transmitting ultrasonic waves generated by the ultrasonic generator; and
And a fluid circulation unit that circulates and cools the fluid medium accommodated in the cartridge housing and supplies it to the cartridge housing,
The fluid circulation unit,
and a pair of cylinders into which the fluid medium accommodated in the cartridge housing is alternately drawn in or drawn out.
According to claim 1,
The fluid circulation unit,
The ultrasonic generator further comprises a cooling unit for cooling the pair of cylinders.
According to claim 1,
The fluid circulation unit,
a pair of plungers provided to reciprocate in the pair of cylinders; and
and a driving unit for driving the pair of plungers so as to operate the pair of plungers in opposite directions.
According to claim 3,
A volume corresponding to a stroke in which the plunger reciprocates in the cylinder is equal to a volume of the fluid medium accommodated in the cartridge housing.
According to claim 3,
the driving unit,
drive actuator;
a pinion gear that is coupled to the driving actuator and rotates; and
An ultrasonic generator comprising a pair of rack gears provided on a pair of plungers and disposed opposite to each other with the pinion gear interposed therebetween to reciprocate in opposite directions by rotation of the pinion gear.
According to claim 2,
the cooling unit,
a water jacket in contact with at least one of the cylinders and circulating a cooling fluid cooling a fluid medium accommodated in the cylinder; and
and a cooling device for circulating and cooling the cooling fluid accommodated in the water jacket.
According to claim 6,
the cooling unit,
The ultrasonic generator further comprises a Peltier element interposed between the cylinder and the water jacket.
According to claim 2,
the cooling unit,
An ultrasonic generator comprising a heat sink in contact with the cylinder.
According to claim 2,
the cooling unit,
An ultrasonic generator comprising a cooling fan for blowing the cylinder.
According to claim 8,
the cooling unit,
The ultrasonic generator further comprises a Peltier element interposed between the cylinder and the heat sink.

According to claim 1,
The ultrasonic generator comprises one or more ultrasonic transducers.
According to claim 1,
a handpiece to which the cartridge housing is detachably coupled;
a distance sensing unit provided on the handpiece or the cartridge housing and measuring a distance from the skin surface; and
and a controller for operating the ultrasonic generator when the measured data value of the distance sensing unit matches a preset value.
According to claim 1,
a handpiece to which the cartridge housing is detachably coupled;
a motion sensing unit provided on the handpiece or the cartridge housing and measuring motion; and
The ultrasonic generator of claim 1, further comprising a controller for stopping the ultrasonic generator when motion is not sensed by the motion sensor.

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