KR102438203B1 - Ultrasonic medical instrument - Google Patents

Abstract

The present invention relates to an ultrasonic medical device having a handpiece and an ultrasonic wave generating cartridge that is detachably attached to the handpiece and generates ultrasonic waves, the ultrasonic wave generating cartridge comprising: a cartridge housing detachable from the handpiece; a first movable body accommodated in the cartridge housing and provided to be movable in a first axial direction; a second movable body provided to be reciprocally movable on the first movable body in a second axial direction perpendicular to the first axial direction; and an ultrasonic wave generator provided on the second movable body and having a transducer for generating ultrasonic waves.

Description

Ultrasound medical device {ULTRASONIC MEDICAL INSTRUMENT}

The present invention relates to an ultrasonic medical device, and more particularly, to an ultrasonic medical device having a handpiece and an ultrasonic wave generating cartridge that is detachably attached to the handpiece and generates ultrasonic waves.

There is a layer of adipose tissue under the dermis and epidermis of the skin. Cellulite tends to occur in the subcutaneous fat layer, which is unique compared to other fat layers because the subcutaneous fat can be organized into specific chambers surrounded by strands of connected tissue. Excess adipose tissue can cause obesity, cellulite, sagging skin and wrinkles.

Subcutaneous fat, which accounts for most of the adipose tissue, is divided into a shallow fat layer and a deep fat layer. Deep fat is located between the subcutaneous membrane and fascia in the abdomen, lower back, buttocks, and thighs and forms a deep fat compartment. This deep fat layer has a distinct tendency to accumulate in localized areas. Local fat accumulation produced with age thins out the fibrous septum and becomes bulky within the confined space due to the defect. Therefore, it shows a tendency to bulge in the lower part of the waist.

The localized concentration of excess fat causes the skin to swell convexly and the undesirable skin contours can improve the appearance of the outer layer of skin by removing the lipid-rich fat layer.

Recently, as a non-invasive method of reducing the subcutaneous fat layer or adipose tissue, a procedure using ultrasound is widely known.

Ultrasound refers to a wave having a frequency of 20 kHz or higher, and is used in various ways to diagnose and treat an affected part in the medical field, as well as skin care.

In particular, High Intensity Focused Ultrasound (HIFU), a form of focused ultrasound with high intensity, is selected non-invasively without causing any damage to the skin surface, unlike laser and RF (Radio Frequency) high-frequency equipment. By concentrating the energy in the area, that is, the emitted ultrasound is focused on a specific point, which is a focus, heat is generated, thereby causing a rapid temperature rise in the treatment area. Through this thermal function, it does not leave side effects on various affected areas, induces fat cells to undergo coagulation necrosis, and performs the procedure.

On the other hand, it is most effective to use the ultrasonic treatment by adjusting the focal position of the ultrasonic wave when the skin part to be treated is different. That is, it is desired to adjust the focal position of the transducer so that the focal position of the ultrasound irradiated from the transducer matches the subcutaneous fat layer, which is the treatment site.

However, in the conventional ultrasonic generator, the position of the transducer that generates the ultrasonic wave is fixed, that is, the focus position of the ultrasonic wave irradiated from the transducer is fixed. There is a problem. Accordingly, there is a problem in that it is necessary to provide a plurality of ultrasound generators having focal positions of ultrasound according to a skin region to be treated.

In addition, when the conventional ultrasonic generator is used more than a certain number of times, the transducer is deformed and the entire ultrasonic generator has to be discarded.

Accordingly, the present applicant embeds a transducer in a cartridge that is replaceably detachable from the handpiece, and can move the focus position of ultrasound irradiated from the transducer embedded in the cartridge in a plane to a uniform depth in the skin, as well as We have developed an ultrasound medical device that can also variably adjust the focal depth.

Domestic Patent Publication No. 10-2013-0106361 (Title of the invention: HIFU applicator, published date: 2013.09.27.)

The present invention is intended to solve the above problems, and it is possible to not only move the focal position of ultrasound to a uniform depth in the skin, but also to variably control the focal depth of ultrasound, and also to simply replace and use only the ultrasound generating cartridge. An object of the present invention is to provide an ultrasonic medical device capable of reducing maintenance costs.

An object of the present invention is to provide an ultrasonic medical device having a handpiece and an ultrasonic wave generating cartridge that is detachably attached to the handpiece and generates ultrasonic waves, the ultrasonic wave generating cartridge comprising: a cartridge housing detachable from the handpiece; a first movable body accommodated in the cartridge housing and provided to be movable in a first axial direction; a second movable body provided to be reciprocally movable on the first movable body in a second axial direction perpendicular to the first axial direction; and an ultrasonic wave generator provided on the second movable body and having a transducer generating ultrasonic waves.

Here, a guide protrusion formed to protrude from any one of the first movable body and the second movable body; and a guide groove formed in the other one of the first movable body and the second movable body along the moving direction of the second movable body to guide the movement of the guide protrusion.

The apparatus may further include an elastic member that elastically supports the first movable body and the second movable body and provides an elastic force so that the first movable body and the second movable body are spaced apart from each other.

A pair of first bellows disposed to face each other along the first axial direction with the first movable body interposed therebetween, and further comprising a pair of first bellows for supporting the first movable body to the cartridge housing in a stretchable manner along the first axial direction can

A first sealing member for sealing between the first bellows and the cartridge housing may be further included.

The second movable body may include: an actuator supporting the ultrasonic generator and movably coupled to the first movable body in the second axial direction; a carriage disposed to face the ultrasonic generator with the actuating member interposed therebetween and provided to move in the cartridge housing along the second axial direction; A pusher in contact with the carriage may include a pusher configured to move the carriage along the second axial direction by a pressing force generated from the handpiece.

a protruding rib protruding from any one of the carriage and the cartridge housing; and a track formed in the other one of the carriage and the cartridge housing along the moving direction of the second movable body to guide the movement of the protruding rib.

The second moving body may include a plurality of balls provided to be rollable on the actuating tool; and a ball guide groove formed at the bottom of the carriage toward the operation tool, the plurality of balls in rollable contact, forming a movement path of the plurality of balls, and guiding the movement of the balls. .

It may further include a second bellows provided on the periphery of the pusher to stretchably support the pusher along the second axial direction.

A second sealing member provided between the second bellows and the cartridge housing and sealing between the second bellows and the cartridge housing may be further included.

The ultrasonic generator may include: a transducer for generating ultrasonic waves; a transducer holder supporting the transducer; and a transducer bracket connecting the transducer holder to the second movable body.

Step portions having various height differences are formed on one plate surface, and are disposed between the transducer holder and the transducer bracket, and select the interval between the transducer holder and the transducer bracket in response to the various step portions, It may further include a focus adjusting member for adjusting the focus position of the transducer.

The cartridge housing may further include a guide shaft provided along the first axial direction to guide the movement of the first movable body.

As the focal depth of the transducer is adjusted, the intensity of the ultrasound applied to the transducer may be adjusted.

The cartridge housing may further include a degassing liquid discharge unit for discharging the degassed liquid accommodated in the cartridge housing to the outside.

It may further include a rotation knob provided on the handpiece to move the second movable body along the second axis direction by a rotation operation.

The rotary knob may include a pressing button for pressing the second movable body; an elevating body provided on the pressing button so as to be able to ascend and descend along the second axial direction; a rotating body that forms a spiral-shaped profile groove on an outer circumferential surface and is rotatably disposed coaxially with the elevating body; a moving pin fixed to the elevating body and fitted into the profile groove of the rotating body to move along the profile groove and elevate the elevating body; a knob body connected to or disconnected from the rotating body and connected to the rotating body to rotate the rotating body; a locking button locking or unlocking the knob body to intermittently lock the knob body; and an elastic member for a knob that provides an elastic force to the locking button so that the locking button is locked with the knob body.

According to the present invention, it is possible not only to move the focus position of ultrasonic waves to a uniform depth in the skin, but also to variably adjust the focus depth of ultrasonic waves. have.

1 is a perspective view of an ultrasound medical device according to an embodiment of the present invention;
Figure 2 is an exploded perspective view of the ultrasonic generating cartridge and the handpiece of Figure 1;
3 is a longitudinal sectional view of FIG. 1;
Figure 4 is a longitudinal sectional view of the main part of the ultrasonic generating cartridge of Figure 1,
Figure 5 is an exploded perspective view of the main part of the ultrasonic generating cartridge of Figure 1;
6 is an exploded perspective view of the first movable body, the second movable body, and the ultrasonic generator of FIG. 5;
7 is an exploded perspective view of the main part of the first movable body of FIG. 5;
Figure 8 is a bottom perspective view of the carriage of Figure 5;
Figure 9 is a view showing the operating state of the ultrasonic generating cartridge of Figure 1;
10 is a longitudinal sectional view of the main part of FIG. 9;
11 is a view showing another operating state of the ultrasonic generating cartridge of FIG. 1;
12 is an enlarged perspective view of the main part of the rotary knob of FIG. 1;
13 is an exploded perspective view of the rotary knob of FIG. 1;
14 is a cross-sectional view taken along line AA of FIG. 12;
15 is a cross-sectional view of an ultrasonic wave generator.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail 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, and only these embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully inform those skilled in the art of the scope of the present invention.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural, unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components. Like reference numerals refer to like elements throughout, 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 elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein will have the meaning commonly understood by those of ordinary skill in the art to which this invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly specifically defined.

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

1 to 7 show an ultrasound medical apparatus according to an embodiment of the present invention.

The ultrasound medical device 1 includes a hand piece 10 and an ultrasound generating cartridge 100 .

The handpiece 10 includes a rod-shaped handle 11 having a predetermined length so as to be gripped by hand, and a head 21 protruding from one end of the handle 11 to which the ultrasonic wave generating cartridge 100 is detachable. .

Hereinafter, for convenience of explanation, the longitudinal direction of the handle 11 of the handpiece 10 is referred to as a first axial direction, and a direction perpendicular to the first axial direction is referred to as a second axial direction.

The handle 11 accommodates a driving actuator 13 for moving the first movable body 131 to be described later of the ultrasonic generating cartridge 100 along the first axial direction. In addition, the control unit 17 for controlling the driving actuator 13 and the ultrasonic generator 211 to be described later is accommodated in the handle 11 .

The head 21 is formed with a detachable portion 23 to which the ultrasonic generating cartridge 100 is detachable.

On the other hand, the ultrasonic generating cartridge 100 includes a cartridge housing 101 , a first movable body 131 , a second movable body 151 , and an ultrasonic wave generator 211 .

The cartridge housing 101 has a hollow cylindrical shape, and is detachable from the detachable part 23 of the handpiece 10 . A medium having a low ultrasonic loss coefficient, for example, a degassing liquid is accommodated in the cartridge housing 101 so that there is no loss of ultrasonic waves irradiated from the ultrasonic generator 211 .

The cartridge housing 101 includes a housing body 103 , a left side cover 105 , a right side cover 111 , a lower cover 115 , and an upper cover 121 . The cartridge housing 101 has the housing body 103 interposed therebetween, and the left side cover 105 and the right side cover 111 are airtightly maintained on the left and right sides of the housing body 103 along the first axial direction, respectively. and the lower cover 115 and the upper cover 121 are respectively detachably coupled to the lower and upper portions of the housing body 103 along the second axial direction while maintaining airtightness.

The housing body 103 has a hollow quadrangular prism shape. The housing body 103 has openings formed along the first axial direction and the second axial direction, respectively. Hereinafter, for convenience of description, a pair of openings formed along the first axial direction are referred to as a left opening and a right opening, and a pair of openings formed along the second axial direction are referred to as a lower opening and an upper opening.

A left side cover 105 is mounted on the left opening of the housing body 103 as a degassing liquid outlet for discharging the degassed liquid accommodated in the cartridge housing 101 to the outside.

A side bellows 107 is provided between the left side cover 105 and the housing body 103 .

Further, a bellows bracket 108 for supporting the side bellows 107 to the side cover 105 is provided between the side cover 105 and the side bellows 107 . The bellows bracket 107 is provided with a communication hole 108a through which the side cover 105 and the side bellows 107 communicate and the degassed liquid flows.

As a result, when the second movable body 151 descends toward the lower cover 115 of the cartridge housing 101 to be described later, as the volume inside the housing body 103 is reduced, the A part of the degassed liquid flows to the left side cover 105 through the side bellows 107 and the bellows bracket 108 , so that it is possible to respond to a change in the internal volume of the housing body 103 .

In addition, as the treatment is performed continuously using the ultrasonic medical device 1 according to an embodiment of the present invention, the temperature of the transducer 213 to be described later increases, and the temperature of the degassing liquid accommodated in the housing body 103 rises. When the internal pressure of the housing body 103 exceeds a certain level, a portion of the degassed liquid contained in the housing body 103 passes through the side bellows 107 and the bellows bracket 108 to the left side cover 105 ) and discharged to the outside through the left side cover 105 , it is possible to suppress an increase in the pressure inside the housing body 103 .

Further, the side bellows 107 is equipped with a side sealing member 109 for sealing between the side bellows 107 and the left opening of the housing body 103 . Here, although the O-ring is illustrated as the side sealing member 109 in the present embodiment, the present invention is not limited thereto, and various types of sealing members may be provided. Accordingly, the degassed liquid accommodated in the housing body 103 is prevented from leaking through the left opening.

A right side cover 111 is mounted on the right opening of the housing body 103 . A shaft passage hole 113 through which the drive shaft 15 of the drive actuator 13 passes is formed in the right side cover 111 .

A lower cover 115 is mounted on the lower opening of the housing body 103 . A window 117 through which the ultrasonic waves irradiated from the ultrasonic generator 211 are radiated to the outside of the cartridge housing 101 is formed on the bottom surface of the lower cover 115 .

An upper cover 121 is mounted on the upper opening of the housing body 103 . A long hole-shaped through hole 123 is formed in the center of the plate surface of the upper cover 121 .

On the other hand, a track 125 is formed on the upper inner surface of the housing body 103 in which the left opening and the right opening are formed. The track 125 is formed to have a predetermined length along the moving direction of the second movable body 151, for example, along the second axial direction. A protruding rib 185 of a second movable body 151 to be described later is coupled to the track 125 to guide the movement of the protruding rib 185 .

The first movable body 131 has a rectangular block shape, and is accommodated in the cartridge housing 101 , more specifically, is movably accommodated in the housing body 103 in the first axial direction. The first movable body 131 is connected to the drive shaft 15 of the drive actuator 13 .

In addition, the first movable body 131 is movably through-coupled to the pair of guide shafts 133 . A pair of guide shafts 133 are disposed in the housing body 103 at intervals in the first axial direction to guide the movement of the first movable body 131 .

Guide protrusions 135 are formed to protrude from both sides of the first movable body 131 formed along the second axial direction. The guide protrusion 135 is formed to protrude from the surface of the first movable body 131 to a predetermined length along the second axial direction. The guide protrusion 135 is movably coupled to the guide groove 157 of the second movable body 151 to be described later.

In addition, on the upper surface of the first movable body 131 facing the upper cover 121 of the cartridge housing 101, an elastic member support portion 137 on which one end of the elastic member 205 to be described later is supported is provided along the second axial direction. It is formed to protrude in the shape of a rod.

On the other hand, a pair of first bellows (141a, 141b) are disposed to face each other in the first axial direction with the first movable body 131 interposed therebetween. The first bellows (141a, 141b) has a hollow corrugated tube shape so as to be stretchable along the first axial direction.

Accordingly, the first movable body 131 is reciprocally moved along the first axial direction within the cartridge housing 101 by the driving of the driving actuator 13 . At this time, each of the first bellows 141a and 141b is expanded or compressed along the first axial direction by the reciprocating movement of the first movable body 131 .

The free ends of each of the first bellows 141a and 141b are supported by the side support 145 by the bellows nut 143 .

In addition, an O-ring is shown as the first sealing member 147 in the bellows nut 143 for fastening the first bellows 141a disposed adjacent to the left side cover 105 to the side support 145 , but the present invention is limited thereto. Instead, various types of sealing members may be provided, and the airtightness of the first bellows 141a may be maintained.

On the other hand, between the bellows nut 143 fastened to the side support 145 facing the handle 11 of the handpiece 10 and the shaft through hole 113 of the right side cover 111, the housing body 103 and the right A first sealing member 147 for sealing between the shaft passage holes 113 of the side cover 111 is mounted, and in this embodiment, an O-ring is shown as the first sealing member 147, but limited to this. Instead, various types of sealing members may be provided. In addition, between the bellows nut 143 and the right side cover 111, a gasket 149 for airtight maintenance between the bellows nut 143 and the right side cover 111 is provided. Accordingly, the degassed liquid accommodated in the housing body 103 does not leak through the right side cover 111 .

The second movable body 151 is accommodated in the cartridge housing 101 and is provided to be reciprocally movable on the first movable body 131 in the second axial direction. The second moving body 151 includes an actuator 153 , a carriage 181 , a pusher 191 , and an elastic member 205 .

The actuator 153 supports the ultrasonic wave generator 211 and is movably coupled to the first movable body 131 in the second axial direction.

The actuator 153 includes a pair of arms 155 disposed opposite to each other on both sides of the first movable body 131 , an arm connection bracket 161 connecting one end of the pair of arms 155 , and a ball support plate. (167). Accordingly, the operation tool 153 has an inverted 'U'-shaped cross-sectional shape as a whole.

Guide grooves 157 are formed on the opposite plate surfaces of the pair of arms 155 , for example, along the moving direction of the second movable body 151 , on the inner surfaces of the pair of arms 155 , for example, along the second axial direction. is formed The guide protrusion 135 of the first movable body 131 is coupled to the guide groove 157 to guide the movement of the guide protrusion 135 . Accordingly, the second movable body 151 is stably moved along the second axial direction by the guide protrusion 135 and the guide groove 157 .

The arm connection bracket 161 is disposed toward the upper cover 121 , and an elastic member through-hole 163 through which the elastic member 205 is coupled is formed in the central region of the arm connection bracket 161 .

In addition, a plurality of ball seating grooves 165 in which the spherical balls 175 are seated are formed in the arm connection bracket 161 . The plurality of ball seating grooves 165 are formed along the circumference of the elastic member through-hole 163 . Each ball seating groove 165 is accommodated so that the ball 175 protrudes.

The ball support plate 167 is provided above the arm connection bracket 161 . The ball support plate 167 has a plate shape, and a ball receiving groove 169 is formed to rollably receive the ball 175 seated in the ball seating groove 165 of the operation tool 153 . The ball 175 accommodated in the ball receiving groove 169 partially protrudes from the plate surface of the ball support plate 167 .

In addition, an elastic member mounting portion 171 for supporting the elastic member 205 is provided at the bottom of the ball support plate 167 . The other end of the elastic member 205 supported by the elastic member support 137 of the first movable body 131 is mounted to the elastic member mounting portion 171 .

In addition, a magnet accommodating groove 173 in which the magnet 177 is accommodated is formed in the center of the ball support plate 167 .

The carriage 181 is disposed to face the ultrasonic generator 211 with the actuator 153 interposed therebetween, and is provided to move along the second axial direction in the cartridge housing 101 .

The carriage 181 includes a pair of legs 183 and a pusher contact portion 187 that interconnects one end of the pair of legs 183 and contacts the pusher 191 . Accordingly, the carriage 181 as a whole has an inverted 'U'-shaped cross-sectional shape.

Projecting ribs 185 are formed on each outer surface of the legs 183 facing the inner surface of the cartridge housing 101 . The protruding rib 185 is formed to protrude to a predetermined length along the second axial direction. The protruding rib 185 is coupled to the track 125 of the cartridge housing 101 , and the carriage 181 is stably moved along the second axial direction by the protruding rib 185 and the track 125 .

As shown in FIG. 8 , a ball guide groove 189 for guiding the movement of the ball 175 is formed at the bottom of the pusher contact portion 187 facing the actuator 153 . The ball guide groove 189 forms a movement path of the plurality of balls 175 and has a rectangular closed loop shape. The ball guide groove 189 has a movement path arranged in parallel along the first axial direction. The ball guide groove 189 is in contact with the plurality of balls 175 partially protruding from the ball support plate 167 in a rollable manner, and guides the movement of the balls 175 . Accordingly, the ball guide groove 189 also serves as a stopper for limiting the distance that the first movable body 131 reciprocates along the first axial direction. Here, in the present embodiment, the ball guide groove 189 has a rectangular closed loop shape, but is not limited thereto.

The pusher 191 is in contact with the carriage 181 , and moves the carriage 181 along the second axial direction by the pressing force generated from the handpiece 10 .

The pusher 191 has a plate shape and is disposed above the carriage 181 . The pusher 191 is always in contact with the pusher contact 187 of the carriage 181 . The pusher 191 is coupled to the pusher contact portion 187 of the carriage 181 by fastening means such as bolts. Accordingly, the pusher 191 presses the carriage 181 by the pressing force generated from the handpiece 10 to lower the carriage 181 in the second axial direction. For example, the ultrasonic generator 211 moves the first moving body ( 131), the carriage 181 is moved along the second axial direction.

Meanwhile, a second bellows 195 supporting the pusher 191 is provided around the pusher 191 . The second bellows 195 has a plate shape in which a plurality of wrinkles are formed on the surface so as to be stretchable along the second axial direction. The second bellows 195 is stretchably supported between the lower surface of the upper cover 121 and the upper surface of the housing body 103 . In addition, a second sealing member (not shown) for sealing between the upper cover 121 and the housing body 103 is mounted between the lower surface of the upper cover 121 and the upper surface of the housing body 103, The second sealing member may be provided as a sealing member of various types, such as an O-ring. Accordingly, the degassed liquid accommodated in the housing body 103 does not leak through the upper cover 121 .

A pressing tool 201 is mounted on the upper portion of the pusher 191 . The pressing tool 201 is pressed by the rotation operation of the rotary knob 300 to press the pusher 191 toward the lower cover 115 in the second axial direction.

Meanwhile, an elastic member 205 is provided between the first movable body 131 and the second movable body 151 .

The elastic member 205 elastically supports the first movable body 131 and the second movable body 151 , and provides an elastic force so that the first movable body 131 and the second movable body 151 are spaced apart from each other. In this embodiment, the elastic member 205 is fitted to the elastic member support 137 of the first movable body 131 . The other end of the elastic member 205 penetrates the elastic member through-hole 163 of the actuating tool 153 and is fitted to the elastic member mounting portion 171 of the ball support plate 167 . Accordingly, the ball support plate 167 of the first movable body 131 and the second movable body 151 is elastically supported.

Here, although a coil spring is illustrated as the elastic member 205 in the present embodiment, it is not limited thereto, and various types of springs such as a conical spring and a torsion spring may be provided as the elastic member 205 .

The ultrasonic wave generator 211 is provided in the second movable body 151 to generate ultrasonic waves. The ultrasonic generator 211 includes a transducer 213 for generating ultrasonic waves by receiving electric power from the handpiece 10 , a transducer holder 215 for supporting the transducer 213 , and a transducer holder 215 . ) includes a transducer bracket 217 for connecting to the second movable body (151).

The transducer 213 has a shape concavely curved toward the lower cover 115 . Here, the transducer 213 concentrates energy on the selected part non-invasively without causing any damage to the skin surface, and focuses the emitted ultrasound to a specific point, a focus, to generate heat, thereby providing heat to the treatment site. It is more preferable to generate a high-intensity focused ultrasound (HIFU) that can be operated without leaving any side effects on the affected area by causing a rapid temperature rise.

Meanwhile, the ultrasound generating cartridge 100 further includes a focus adjusting member 221 for adjusting the focus position of the transducer 213 .

The focus adjusting member 221 has a disk shape and is provided between the transducer holder 215 and the transducer bracket 217 . The focus adjusting member 221 is rotatable about a rotation shaft 225 rotatably coupled to the transducer holder 215 and the transducer bracket 217 . A step portion 223 having various height differences is formed on one plate surface of the focus adjusting member 221 . The stepped portion 223 of the focusing member 221 is in contact with the contact tip 219 protruding from the bottom of the transducer bracket 217 . On the other hand, the focusing depth of the ultrasonic wave is determined according to the radius of curvature of the curved portion of the transducer 213, and in order to correct an error existing in the transducer 213 itself, the corresponding step portion 223 and the contact tip (219) is brought into contact.

Accordingly, as the contact tip 219 of the transducer bracket 217 comes into contact with any one of the plurality of step portions 223 of the focus adjusting member 221 , the focus position of the transducer 213 is precisely adjusted. be able to

In addition, a film 231 made of a transparent or translucent material through which the ultrasonic waves irradiated from the transducer 213 are transmitted is disposed on the window 117 of the lower cover 115 .

In addition, the ultrasonic medical apparatus 1 according to an embodiment of the present invention is provided on the head 21 of the hand piece 10 and moves the second movable body 151 along the second axial direction by rotational operation. It further includes a rotation knob (300).

12 to 14, the rotary knob 300 provided on the handpiece 10 is shown.

The rotary knob 300 includes a pressing button 301 , a lifting body 303 , a rotating body 305 , a moving pin 311 , a knob body 315 , a locking button 321 , and a knob for It includes an elastic member (325).

The pressing button 301 presses the second movable body 151, for example, the pressing tool 201 mounted on the pusher 191 of the second movable body 201 to be described later.

The elevating body 303 is provided above the pressing button 301 and moves up and down along the second axial direction.

The rotating body 305 is rotatably disposed coaxially with the elevating body 303 . The rotating body 305 has a spiral-shaped profile groove 307 formed on its outer circumferential surface, and a moving pin 311 is movably coupled to the profile groove 307 .

The moving pin 311 has a rod shape of a certain length. One end of the moving pin 311 is fixed to the elevating body 303 , and the other end of the moving pin 311 protrudes from the elevating body 303 and is movably fitted into the profile groove 307 of the rotating body 305 . are combined The moving pin 311 reciprocates along the profile groove 307 between the top dead center located farthest from the pressing button 301 and the bottom dead center located closest to the pressing button 301 .

The knob body 315 is gripped by the user to rotate the rotating body 305 . A connection hole 317 to which the rotating body 305 is connected or disconnected is formed in the knob body 315 . Accordingly, when the rotating body 305 is connected to the connection hole 317 of the knob body 315 , the rotating body 305 rotates together with the knob body 315 .

The locking button 321 is locked or unlocked by the locking hole 319 of the knob body 315 to intermittently lock the knob body 315 .

The elastic member 325 for the knob provides an elastic force to the locking button 321 so that the locking button 321 is locked to the locking hole 319 of the knob body 315 .

Here, the undescribed reference numeral 331 denotes a knob casing that surrounds the rotating body 305 and the elastic member 325 for the knob together with the knob body 315 . A plurality of scales may be displayed around the knob casing 331 to indicate the movement distance of the lifting body 303 in the second axial direction according to the rotation of the knob body 315 .

Accordingly, when the moving pin 311 is positioned at top dead center, pressing the locking button 321 to unlock the locking button 321 from the locking hole 319, the knob body 315 descends and the knob body 315 ), the rotating body 305 is connected to the connecting hole 317, and when the knob body 315 is rotated in one direction, the rotating body 305 rotates together in one direction, and the moving pin 311 is the rotating body 305. ) moves toward the bottom dead center along the profile groove 307 , and the elevating body 303 descends along the second axial direction to press the pressing button 301 .

As the pressing button 301 operates by pressing, the pressing button 301 presses the pressing tool 201 mounted on the upper portion of the pusher 191 of the second movable body 151, and the second movable body 151 is It descends along the two axes.

As the second movable body 151 descends, the transducer 213 also descends along the second axial direction.

As described above, by rotating the rotation knob 300 , the focal depth of ultrasound of the ultrasound medical apparatus 1 according to an embodiment of the present invention can be easily adjusted.

With this configuration, in a state in which the ultrasonic generating cartridge 100 is mounted on the handpiece 10, when the rotation knob 300 provided on the handpiece 10 is rotated so that the pressing tool 201 is pressed, the pressing button 301 descends and presses the pressure tool 201, and as shown in FIGS. 9 and 10, the pressure tool 201 descends toward the lower cover 115 of the cartridge housing 101 to push the pusher 191. is pressed, and at the same time the carriage 181 is pressed and descends along the second axial direction. At this time, the protruding rib 185 of the carriage 181 moves along the track 125 of the cartridge housing 101, and the carriage 181 descends along the second axial direction. In addition, the second bellows 195 supporting the pusher 191 extends corresponding to the descending interval.

Then, the carriage 181 presses the ball support plate 167 of the actuating member 153, and thus the elastic member 205 is compressed while the actuating member 153 descends along the second axial direction. At this time, in a state in which the guide protrusion 135 of the first movable body 131 is coupled to the guide groove 157 of the second movable body 151 , the second movable body 151 descends in the second axial direction.

As the second movable body 151 descends, the transducer 213 of the ultrasonic generator 211 descends toward, for example, the lower cover 115 in a direction away from the first movable body 131 , The focus position can be changed.

Meanwhile, when the second movable body 151 moves with respect to the first movable body 131 , the first movable body 131 maintains a state in which it does not move along the first axial direction.

In this way, the ultrasound generating cartridge 100 adjusts the position of the transducer 213 along the second axial direction, so that the ultrasound focal depth of the transducer 213 can be adjusted. At this time, the control unit 17 accommodated in the handpiece 10 corresponds to the variation of the ultrasonic focal depth, and adjusts the intensity of the current applied to the transducer 213 to control the intensity of the ultrasonic wave irradiated from the transducer 213 . will adjust

On the other hand, as shown in FIG. 9 , in a state in which the transducer 213 of the ultrasonic generator 211 is descended from the initial position in the second axial direction, the rotation knob 300 is rotated so that the pressing tool 201 is released. When operated, the pressing button 301 rises to release the pressure of the pressing member 201, and the elastic member 205 compressed between the first moving body 131 and the operating member 153 generates an elastic force while tensioning, as shown in FIG. 3 and 4, the operation tool 153 of the second movable body 151 is raised along the second axial direction. As the actuator 153 rises, the moving bracket also rises. At this time, in the state in which the guide protrusion 135 of the first movable body 131 is coupled to the guide groove 157 of the actuating member 153, the actuating member 153 rises along the second axial direction, and at the same time, the carriage The protruding rib 185 of 181 moves along the track 125 of the cartridge housing 101, and the carriage 181 rises along the second axial direction.

As the carriage 181 rises, the pusher 191 and the pressing tool 201 also rise. At this time, the second bellows 195 supporting the pusher 191 is compressed and restored to its original state.

On the other hand, as the second movable body 151 rises along the second axial direction, the transducer 213 of the ultrasonic generator 211 rises and returns to the initial position, and the ultrasonic generator cartridge 100 is shown in FIG. It is restored to the initial state as shown in Fig.

On the other hand, as shown in FIG. 9, in a state in which the transducer 213 is lowered from the initial position, the first movable body 131 is separated from the driving actuator 13 of the handpiece 10 by a predetermined distance. 13) is driven.

As the driving actuator 13 is driven, the first movable body 131 connected to the driving shaft 15 of the driving actuator 13 moves in a direction away from the driving actuator 13 . At this time, as shown in FIG. 11 , the first bellows 141b adjacent to the driving actuator 13 among the pair of first bellows 141a and 141b is extended, and the remaining first bellows 141a is compressed. At the same time, the plurality of balls 175 partially protruding from the ball support plate 167 are in rollable contact along the ball guide groove 189 of the carriage 181, and the first movable body 131 along the first axial direction. guide the movement of

Meanwhile, when the first movable body 131 moves along the first axial direction, the second movable body 151 maintains a state in which it does not move along the second axial direction.

Accordingly, by adjusting the position of the transducer 213 along the first axial direction in a state in which the transducer 213 is lowered to have a desired focus position of the ultrasonic wave, the focus of the ultrasonic wave is set to a uniform depth in the skin in the first axial direction. It moves along the plane of the

As described above, according to the present invention, by moving the transducer along the plane in the first axial direction to move the focal position of the ultrasound to a uniform depth in the skin, it is possible to apply the energy uniformly and evenly to the treatment site and perform treatment. In addition, by moving the transducer along the second axial direction perpendicular to the first axial direction to adjust the focal depth of the ultrasound, it is possible to treat in response to the skin area. In addition, only the ultrasonic generating cartridge can be easily replaced and used, and maintenance costs can be reduced.

Meanwhile, in the above-described embodiment, the guide projection is formed on the first movable body and the guide groove to which the guide projection is movably coupled to the operation member of the second movable body is formed, but the present invention is not limited thereto, and the first movable body is not limited thereto. It is also possible to form a guide groove in the guide projection, and to form a guide protrusion in the operating member of the second movable body.

Further, in the above-described embodiment, the protruding ribs are formed on the legs of the carriage, and the track to which the protruding ribs are movably coupled to the cartridge housing is illustrated, but the present invention is not limited thereto. It is also possible to form protruding ribs.

15, the ultrasound generating cartridge 100 of the ultrasound medical apparatus 1 according to the present invention includes a cartridge housing 401 (same as 101), a first movable body 431 (same as 131); linear piezoelectric motor 440; It includes a linear moving body 443 and an ultrasonic wave generator 411 (same as 211). The ultrasonic generating cartridge is detachable from the handpiece, and implements the ultrasonic generator movement in the z-axis direction (ie, up and down direction) by the power supplied from the handpiece. A detailed description of the above-described configuration will be omitted.

The first movable body 131 is accommodated in the cartridge housing 101, more specifically, the housing body 103 is movably accommodated in the first axial direction (ie, the x-axis direction). The first movable body 131 is connected to a drive shaft of a drive actuator.

The linear piezoelectric motor 440 is connected to the ultrasonic generator 411 and controls the focal length of the ultrasonic generator 411 . Specifically, the linear piezoelectric motor 440 is in contact with the piezoelectric actuator 441, the oscillation shaft 442 disposed in connection with the dome-shaped piezoelectric actuator 441, and the oscillation shaft 442, and the oscillation shaft ( 442 and a linear moving body 443 that moves linearly by friction. In this case, the linear movable body 443 is connected to the ultrasonic generator 411 . A friction member (not shown) capable of applying a frictional force to the vibration shaft 442 may be further provided between the vibration shaft 442 and the linear movable body 443 .

The piezoelectric actuator 441 is for providing an improved displacement to the ultrasonic generator 411 , and is opposed to the ultrasonic generator 411 , and the ultrasonic generator 442 and the linear moving body 443 through the vibration shaft 442 . (411) may be connected. The piezoelectric actuator 441 may be formed in a dome shape.

The piezoelectric actuator 441 is driven based on the z-axis direction movement signal provided from the handpiece 10 .

The piezoelectric actuator 441 may implement various movements of the linear moving body 443 through the applied voltage waveform. For example, when using a dome-shaped piezoelectric actuator, as a specific sinusoidal applied voltage is provided from the handpiece 10, the dome-shaped piezoelectric actuator for a unit time contracts or expands the vibration axis 442, linear The movable body 443 and the ultrasonic generator 411 are raised or lowered. The ultrasonic medical device 1 drives the piezoelectric actuator 441 by applying a specific sinusoidal number of voltages corresponding to the distance at which the ultrasonic generator wants to move in the second axial direction from the handpiece 10 .

The linear piezoelectric motor 440 is coupled to the lower end of the first movable body 431 . That is, the piezoelectric actuator 441 of the linear piezoelectric motor 440 may be provided at the lower end of the first moving body 431 . Here, as the driving actuator moves the first movable body 431 in the first axial direction (ie, the x-axis direction), the linear piezoelectric motor 440 also moves along the first axial direction. In this way, when the linear piezoelectric motor 440 is moved in the first axial direction, the ultrasonic generator 411 coupled to the linear piezoelectric motor 440 also moves in the first axial direction.

The vibration shaft 442 is an axis for moving the linear movable body 443. As the position changes according to the shape change (contraction or expansion) of the piezoelectric actuator 441 connected to one side of the vibration shaft 442, The linear movable body 443 connected to the other side of the vibration shaft 442 is moved in the vertical direction.

Specifically, the ultrasonic generating cartridge 100 modulates the pulse signal width applied to the piezoelectric actuator 441 (eg, a dome-shaped piezoelectric actuator) to remove the linear moving body 443 connected to the vibration shaft 442 . It can be transferred in the two-axis direction (ie, the z-axis direction). Through this, the ultrasound medical apparatus 1 may adjust the position in the second axial direction of the ultrasound generator 411 fixedly coupled to the linear movable body 443 .

Through this, the ultrasonic generating unit coupled to the linear movable body 443 in the ultrasonic generating cartridge moves the first movable body in the first axial direction by a driving actuator (eg, a linear actuator or a rotary motor, etc.) provided in the handpiece. As it moves along the first axial direction, the linear moving body 443 moves in the second axial direction by driving the piezoelectric actuator 441 provided at the lower end of the first moving body in the ultrasonic generating cartridge along the second axial direction. Move. In this case, when the ultrasonic medical device 1 simultaneously drives the driving actuator in the handpiece and the piezoelectric actuator 441 in the cartridge, the ultrasonic generator may realize two-dimensional movement.

As mentioned above, although 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 realize that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1: Ultrasound medical device
10: Handpiece
100: ultrasonic generation cartridge
101: cartridge housing
125 : track
131: first mobile
133: guide axis
135: guide turn
141a, 141b: first bellows
151: second mobile body
153: operation tool
157: guide groove
167: ball support plate
175 : ball
181 : carriage
189: ball guide groove
191: Pusher
195: second bellows
205: elastic member
211: ultrasonic generator
213: transducer
215: transducer holder
217: transducer bracket
221: focus adjustment member

Claims (19)

An ultrasonic medical device having a handpiece and an ultrasonic wave generating cartridge that is detachably attached to the handpiece and generates ultrasonic waves, the ultrasonic medical device comprising:
The ultrasonic generating cartridge,
a cartridge housing detachable from the handpiece;
a first movable body accommodated in the cartridge housing and provided to be movable in a first axial direction;
a second movable body provided to be reciprocally movable on the first movable body in a second axial direction perpendicular to the first axial direction; and
and an ultrasonic wave generator provided on the second movable body and having a transducer for generating ultrasonic waves;
The second moving body,
a carriage provided in the cartridge housing to move along the second axial direction; and
and a pusher in contact with the carriage and moving the carriage along the second axial direction by a pressing force generated from the handpiece. According to claim 1,
a guide protrusion formed to protrude from any one of the first movable body and the second movable body; and
The ultrasound medical apparatus further comprising a guide groove formed in the other one of the first movable body and the second movable body along the moving direction of the second movable body to guide the movement of the guide protrusion. According to claim 1,
The ultrasound medical apparatus of claim 1, further comprising: an elastic member elastically supporting the first movable body and the second movable body, and providing an elastic force so that the first movable body and the second movable body are spaced apart from each other. According to claim 1,
Further comprising a pair of first bellows disposed opposite to each other along the first axial direction with the first movable body interposed therebetween and configured to support the first movable body to the cartridge housing in a stretchable manner along the first axial direction , ultrasound medical devices. 5. The method of claim 4,
and a first sealing member sealing between the first bellows and the cartridge housing. According to claim 1,
The second moving body,
and an actuator supporting the ultrasonic generator and movably coupled to the first movable body in the second axial direction. According to claim 1,
a protruding rib protruding from any one of the carriage and the cartridge housing; and
The ultrasonic medical apparatus further comprising a track formed in the other one of the carriage and the cartridge housing along the moving direction of the second movable body to guide the movement of the protruding rib. 7. The method of claim 6,
The second moving body,
a plurality of balls provided to be rollable on the actuating tool; and
Formed on the bottom of the carriage toward the operating tool, the plurality of balls are in rollable contact, forming a movement path of the plurality of balls, and further comprising a ball guide groove for guiding the movement of the balls, ultrasonic medical care Device. According to claim 1,
The ultrasonic medical apparatus further comprising a second bellows provided on the periphery of the pusher to support the pusher in a stretchable manner along the second axial direction. 10. The method of claim 9,
and a second sealing member provided between the second bellows and the cartridge housing and sealing the second bellows and the cartridge housing. delete An ultrasonic medical device having a handpiece and an ultrasonic wave generating cartridge that is detachably attached to the handpiece and generates ultrasonic waves, the ultrasonic medical device comprising:
The ultrasonic generating cartridge,
a cartridge housing detachable from the handpiece;
a first movable body accommodated in the cartridge housing and provided to be movable in a first axial direction;
a second movable body provided to be reciprocally movable on the first movable body in a second axial direction perpendicular to the first axial direction; and
and an ultrasonic wave generator provided on the second movable body and having a transducer for generating ultrasonic waves;
The ultrasonic generator,
transducer for generating ultrasound;
a transducer holder supporting the transducer; and
and a transducer bracket connecting the transducer holder to the second movable body,
Step portions having various height differences are formed on one plate surface, and are disposed between the transducer holder and the transducer bracket, and select the interval between the transducer holder and the transducer bracket in response to the various step portions, The ultrasonic medical apparatus further comprising a focus adjusting member for adjusting the focus position of the transducer. According to claim 1,
The ultrasonic medical apparatus further comprising a guide shaft provided in the cartridge housing along the first axial direction to guide the movement of the first movable body. According to claim 1,
As the focal depth of the transducer is adjusted, the intensity of the ultrasound applied to the transducer is adjusted. According to claim 1,
The ultrasonic medical device is provided in the cartridge housing, further comprising a degassing liquid discharge unit for discharging the degassed liquid accommodated in the cartridge housing to the outside. According to claim 1,
The ultrasonic medical apparatus further comprising a rotation knob provided on the handpiece to move the second movable body along the second axial direction by a rotation operation. 17. The method of claim 16,
The rotary knob is
a pressing button for pressing the second movable body;
an elevating body provided on the pressing button so as to be able to ascend and descend along the second axial direction;
a rotating body that forms a spiral-shaped profile groove on an outer circumferential surface and is rotatably disposed coaxially with the elevating body;
a moving pin fixed to the elevating body and fitted into the profile groove of the rotating body to move along the profile groove and elevate the elevating body;
a knob body connected to or disconnected from the rotating body and connected to the rotating body to rotate the rotating body;
a locking button locking or unlocking the knob body to intermittently lock the knob body; and
and an elastic member for a knob that provides an elastic force to the locking button so that the locking button is locked with the knob body. An ultrasonic medical device having a handpiece and an ultrasonic wave generating cartridge that is detachably attached to the handpiece and generates ultrasonic waves, the ultrasonic medical device comprising:
The ultrasonic generating cartridge,
a cartridge housing detachable from the handpiece;
a first movable body accommodated in the cartridge housing and provided to be movable in a first axial direction;
a linear piezoelectric motor coupled to a lower end of the first moving body;
Provided at the lower end of the linear piezoelectric motor, comprising an ultrasonic generator having a transducer for generating ultrasonic waves,
The linear piezoelectric motor,
It moves along the first axial direction according to the movement of the first movable body,
An ultrasonic medical device for forming the second axial movement of the ultrasonic generator by adjusting the length in the second axial direction. 19. The method of claim 18,
The linear piezoelectric motor,
a piezoelectric actuator that generates vibration through the voltage provided from the handpiece;
a linear moving body to which the ultrasonic generator is coupled; and
An ultrasonic medical device including;

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