KR20220083540A - Ultrasound apparatus with reciprocating transfer way of transducer - Google Patents

Abstract

An ultrasonic device according to the present invention includes a cartridge including a transducer for generating ultrasonic waves; and a moving device for moving the transducer, wherein the moving device includes a moving body, a moving block positioned on the moving body and connected to the transducer to move together, a moving connecting member connected to the moving block, and the and a screw unit coupled to the moving connection member to reciprocate the moving block, and the screw unit has a bidirectional thread.

Description

Ultrasonic device employing reciprocating transducer movement {ULTRASOUND APPARATUS WITH RECIPROCATING TRANSFER WAY OF TRANSDUCER}

The present invention relates to an ultrasound apparatus, and more particularly, to an ultrasound apparatus using high-intensity focused ultrasound using a reciprocating method of a transducer.

Recently, various procedures for skin beauty or obesity treatment have been developed, and among these various procedures, interest in procedures performed in a non-invasive manner is increasing.

Ultrasound is widely used for non-invasive procedures, and among them, an ultrasound device using High Intensity Focused Ultrasound (HIFU) has recently been in the spotlight. For example, an ultrasound device that non-invasively performs procedures for skin beauty such as face lifting or skin tightening by irradiating high-intensity focused ultrasound into the skin tissue, or by irradiating high-intensity focused ultrasound to the subcutaneous fat layer. Ultrasound devices for non-invasively performing a procedure for treating obesity by non-invasively burning or melting and decomposing adipose tissue are being developed.

A high-intensity focused ultrasound device used in a skin care procedure is composed of an image monitor, an ultrasound control unit, and a hand piece, and a cartridge including a transducer for generating ultrasound is coupled to the hand piece.

Such an ultrasonic device has a structure in which a transducer generating ultrasonic waves rotates a screw having a screw in one direction in a forward direction and a reverse direction to perform a reciprocating linear motion. In this case, since a deceleration section before the direction change and an acceleration section after the direction change are generated to control the rotational direction of the driving motor, an unnecessary movement section is generated and the time required for the reciprocating motion is increased.

An object of the present invention is to provide an ultrasonic device in which the time required for reciprocating motion is reduced and the control of the driving motor is simple.

An ultrasound apparatus employing a reciprocating method of a transducer according to the present invention includes: a cartridge including a transducer for generating ultrasound; and a moving device for moving the transducer, wherein the moving device includes a moving body, a moving block positioned on the moving body and connected to the transducer to move together, a moving connecting member connected to the moving block, and the and a screw unit coupled to the moving connection member to reciprocate the moving block, and the screw unit has a bidirectional thread.

The bidirectional thread includes a first thread formed along a first oblique direction on the surface of the screw unit, a second thread formed along a second oblique direction intersecting the first oblique direction on the surface of the screw unit, and the second thread. It may include a connection screw connecting the first screw line and the second screw line.

The connection thread may include a first connection thread formed on one side of the screw part and a second connection thread formed on the other side of the screw part.

The movable connecting member may be inserted into the bidirectional thread and proceed along the bidirectional thread.

The movable connection member may include an insertion part inserted into the bidirectional screw thread, and a connection part connected to the insertion part and coupled to the movable block.

After the moving connecting member passes through the first connecting thread, the moving direction of the moving block is changed from a first direction to a second direction opposite to the first direction, and the moving connecting member is connected to the second connecting member. After passing through the screw thread, the moving direction of the moving block may be changed from the second direction to the first direction.

The moving device may further include a driving motor providing a driving force to the screw unit, and a pair of guide members connected to the moving block and guiding the moving block to reciprocate.

The moving device may further include a motion sensor that is installed on the moving body and detects the movement of the moving block.

The cartridge may further include a pressure sensor installed at the lower end of the cartridge to measure the pressure applied to the outside.

The ultrasonic device according to an embodiment of the present invention may reciprocally move the moving block 222 in the first direction and the second direction without changing the rotation direction of the screw by forming a bidirectional thread on the screw portion. Accordingly, since the deceleration section before the direction change of the moving block and the acceleration section after the direction change are not required, the unnecessary movement section can be minimized, thereby minimizing the time required for the reciprocating motion.

In addition, since the driving motor may reciprocate the moving block by rotating the screw unit in one direction, a separate control device for changing the rotational direction of the driving motor is not required.

1 is a schematic cross-sectional view of an ultrasound apparatus according to an embodiment of the present invention.
2 is a plan view of a moving device of an ultrasound apparatus according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2 .
4 is a perspective view illustrating a state in which a movable connection member is coupled to a screw unit of an ultrasonic device according to an embodiment of the present invention.
5 is a view for explaining a state in which the movable connecting member moves according to the rotation of the screw part of the ultrasonic device according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, the embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

1 is a schematic cross-sectional view of an ultrasound apparatus according to an embodiment of the present invention, FIG. 2 is a plan view of a moving device of an ultrasound apparatus according to an embodiment of the present invention, and FIG. 3 is a line III-III of FIG. It is a cross-sectional view cut along.

1 to 3, the ultrasound device according to an embodiment of the present invention is a cartridge (Cartridge) 100 including a transducer 120 for irradiating HIFU to the subject to be treated, and to the subject to be treated Includes a hand piece (Hand piece) 200 for adjusting the range of the HIFU irradiation.

The cartridge 100 may include a cartridge body 110 and a transducer 120 for generating ultrasonic waves.

The transducer 120 may be installed inside the cartridge body 110 . Transducer 120 may be treated by irradiating HIFU to the subject to be treated.

The hand piece 200 may include a hand piece body 210 and a moving device 220 installed inside the hand piece body 210 and moving the transducer 120 .

The hand piece body 210 has a substantially rectangular parallelepiped shape, but is not necessarily limited thereto, and various shapes are possible.

The moving device 220 includes a moving body 221 , a moving block 222 , a moving connecting member 223 (refer to FIG. 3 ), a screw unit 224 , a driving motor 225 , and a pair of guide members 226 . ) may be included.

The moving body 221 may support the moving block 222 , the moving connecting member 223 , and the screw unit 224 .

The moving block 222 is located on the moving body 221 and is connected to the transducer 120 to move together. The first magnetic member 11 may be installed above the moving block 222 .

The moving connecting member 223 may connect the moving block 222 and the screw unit 224 to each other.

The screw unit 224 may be coupled to the moving connection member 223 to reciprocate the moving block 222 by rotation of the screw unit 224 . The screw part 224 may have a bidirectional thread 40 .

4 is a perspective view illustrating a state in which the movable connection member is coupled to the screw unit 224 of the ultrasonic device according to an embodiment of the present invention, and FIG. 5 is a rotation of the screw part of the ultrasonic device according to an embodiment of the present invention. It is a view for explaining a state in which the movable connecting member moves according to the

As shown in FIGS. 4 and 5 , the bidirectional thread 40 is a first thread P1 formed along the first oblique direction Y1 from the surface of the screw part 224 , and the surface of the screw part 224 . a second screw line P2 formed along a second oblique direction Y2 intersecting the first oblique direction Y1 in the ) may be included.

In addition, the connection thread P3 may include a first connection thread P31 formed on one side of the screw part 224 and a second connection thread line P32 formed on the other side of the screw part 224 . At this time, the first connection thread P31 includes a first sub connection thread P311, a second sub connection thread P312 that intersects the first sub connection thread P311, and a first sub connection thread P311 and It may include a first direction change screw P313 that connects the second sub connection screw P312 and changes a direction.

Similarly, the second connection thread P32 includes a third sub connection thread P321, a fourth sub connection thread P322 intersecting the third sub connection thread P321, and a third sub connection thread P321 and It may include a second direction changing screw P323 connecting the fourth sub connection screw P322 and changing the direction.

The movable connection member 223 may be inserted into the bidirectional thread 40 and proceed along the bidirectional thread 40 . The movable connection member 223 includes an insertion part 231 inserted into the bidirectional thread 40, and a connection part 232 connected to the insertion part 231 and fastened to the block groove 222a of the movable block 222. can do. As the moving connecting member 223 moves, the moving block 222 coupled to the moving connecting member 223 also moves together, and the transducer magnetically coupled to the moving block 222 according to the moving of the moving block 222 ( 120) will also move together. At this time, the first magnetic member 11 installed on the upper portion of the moving block 222 is magnetically coupled to the second magnetic member 12 installed on the lower portion of the transducer 120 .

As shown in FIG. 5 , when the screw part 224 is rotated in one direction R by the driving motor 225 , the movable connecting member 223 inserted into the first screw line P1 moves in the first direction. It proceeds to (X1) (S1).

Subsequently, when the screw part 224 rotates in one direction R, the movable connection member 223 is positioned at the first sub-connection thread P311 formed on one side of the screw part 224 . The movable connecting member 223 inserted into the first sub connecting screw P311 proceeds in the first direction X1 according to the rotation of the screw portion 224 ( S2 ).

Subsequently, when the screw part 224 rotates in one direction, the movable connection member 223 passes through the first direction change thread P313 connected to the first sub connection thread P311 to pass through the second sub connection thread ( P312). The movable connection member 223 positioned in the second sub-connection screw line P312 proceeds in the second direction X2 opposite to the first direction X1 according to the rotation of the screw unit 224 ( S3 ). . As such, the movable connection member 223 may pass through the first direction change screw line P313 , and the moving direction of the movable connection member 223 may be changed from the first direction X1 to the second direction X2 . .

That is, after the movable connection member 223 proceeds with the first connection thread P31 , that is, the first sub connection thread P311 , the first direction change thread P313 , and the second sub connection thread P312 in sequence may change the moving direction of the moving block 222 from the first direction X1 to the second direction X2.

Subsequently, when the screw part 224 rotates in one direction R, the movable connection member 223 inserted into the second screw line P2 connected to the second sub connection screw line P312 moves in the second direction X2. ) to proceed to (S4).

Similarly, when the screw part 224 rotates in one direction R, the movable connection member 223 is formed on the other side of the screw part 224 with the second connection thread P32 formed on the other side, that is, the third sub connection thread ( After proceeding in sequence P321), the second direction change thread P323, and the fourth sub connection thread P322, the moving direction of the moving block 222 moves from the second direction (X2) to the first direction (X1) can be changed again.

As described above, the ultrasonic device according to an embodiment of the present invention forms a bidirectional thread 40 on the screw part 224 , thereby moving the moving block 222 in the first direction without changing the rotation direction of the screw part 224 . It can reciprocate in (X1) and the 2nd direction (X2). Accordingly, since the deceleration section before the direction change and the acceleration section after the direction change of the moving block 222 are not required, an unnecessary movement section can be minimized, thereby minimizing the time required for the reciprocating motion.

As shown in FIG. 2 , the driving motor 225 may provide a driving force to the screw unit 224 to rotate the screw unit 224 in one direction R, thereby reciprocating the moving block 222 . . In this way, since the driving motor 225 rotates the screw unit 224 in one direction to reciprocate the moving block 222 , a separate control device for changing the rotational direction of the driving motor 225 is not required. does not

The pair of guide members 226 may pass through the moving block 222 and guide the moving block 222 to reciprocate along the first direction X1 and the second direction X2 . The pair of guide members 226 may include a first guide member 261 and a second guide member 262 respectively positioned on both sides of the screw unit 224 .

The moving device 220 may further include a position controller 60 for controlling the position of the moving block 222 reciprocally moving in the first direction X1 and the second direction X2. The position control unit 60 may include a position determining unit 61 installed in the moving body 221 to correspond to the screw unit 224 , and an encoder 62 installed in the driving motor 225 . The position determining unit 61 may include a variable resistance that determines the position of the moving block 222 based on a difference in electrical resistance or a photo sensor that determines the position of the moving block 222 based on a difference in light quantity.

Meanwhile, the cartridge 100 of the ultrasound apparatus according to an embodiment of the present invention may further include a pressure sensor 400 .

The pressure sensor 400 may be installed at the lower end of the cartridge 100 , that is, at the lower end of the cartridge body 110 to measure the pressure applied to the outside.

Conventional ultrasound devices have a procedure depth of 1 to 5 mm depending on the position of the transducer inside the cartridge. However, since the depth of the treatment may be deeper or lower depending on the pressure that the operator presses the cartridge with the handpiece to the treatment site, the treatment effect is determined according to the skill of the operator, so the treatment depth is not constant.

However, in the ultrasound apparatus according to this embodiment, the pressure sensor 400 is installed at the lower end of the cartridge 100 to measure the pressure of the hand piece applied to the treatment site, and when accurate pressure is applied, light or sound is used. This allows the operator to recognize the pressure of the hand piece. Accordingly, the same therapeutic effect can be obtained regardless of the skill level of the operator.

The mobile device 220 may further include a motion sensor 500 . The motion sensor 500 is installed on the moving body 221 and may detect the movement of the moving block 222 .

In the conventional ultrasound apparatus, the operator moves the handpiece to move the treatment site and irradiates ultrasound to several treatment sites, but since the movement to the treatment site cannot be accurately confirmed, if the cartridge does not move accurately to the treatment site, the Heat may be applied again, which may cause necrosis of the skin in the treated area.

However, when the ultrasound apparatus according to the present embodiment detects the motion of the moving block 222 by installing the motion sensor 500 in the moving body 221 of the hand piece 200, the movement to the treatment site is confirmed. Ultrasound can be irradiated again. That is, after confirming the operation position of the moving block 222 with the motion sensor 500 , the operator can accurately determine the position of the operation site using light or sound. Therefore, the operator does not need to check the ultrasound irradiation position every time, and even when the ultrasound apparatus is operated in a continuous mode, heat is not applied to the same treatment site, so that necrosis of the skin of the treatment site can be prevented.

The motion sensor 500 may include a gyro sensor, an acceleration sensor, a geomagnetic sensor, and the like.

Although the present disclosure has been described through preferred embodiments as described above, the present invention is not limited thereto, and various modifications and variations are possible without departing from the scope of the claims set forth below. Those in the field will understand easily.

100: cartridge 110: cartridge body
120: transducer 200: hand piece
210: hand piece body 220: moving device
221: moving body 222: moving block
223: moving connecting member 224: screw portion
225: drive motor 226: guide member

Claims (9)

A cartridge comprising a transducer for generating ultrasonic waves; and
a moving device that moves the transducer
including,
the mobile device
mobile body,
A moving block located in the moving body and connected to the transducer to move together;
a moving connecting member connected to the moving block; and
A screw part coupled to the movable connection member to reciprocate the movable block
including,
The screw portion is an ultrasonic device having a two-way screw thread.
According to claim 1,
The two-way thread is
a first screw line formed along a first oblique direction on the surface of the screw part;
a second screw line formed along a second oblique direction intersecting the first oblique direction on the surface of the screw part; and
and a connection screw connecting the first screw line and the second screw line.
An ultrasonic device comprising a.
3. The method of claim 2,
The connecting thread is
A first connecting thread formed on one side of the screw portion, and
A second connection thread formed on the other side of the screw part
An ultrasonic device comprising a.
According to claim 1,
The movable connecting member is inserted into the bidirectional screw and proceeds along the bidirectional screw.
5. The method of claim 4,
The movable connecting member is
an insertion part inserted into the bidirectional thread; and
A connection part connected to the insertion part and fastened to the moving block
An ultrasonic device comprising a.
5. The method of claim 4,
After the moving connecting member passes through the first connecting thread, the moving direction of the moving block is changed from a first direction to a second direction opposite to the first direction,
After the moving connecting member passes through the second connecting thread, the moving direction of the moving block is changed from the second direction to the first direction.
According to claim 1,
the mobile device
a driving motor for providing a driving force to the screw unit; and
A pair of guide members connected to the moving block and guiding the moving block to reciprocate
Ultrasound device further comprising a.
According to claim 1,
The moving device is installed on the moving body, the ultrasonic device further comprising a motion sensor for detecting the movement of the moving block.
According to claim 1,
The cartridge is installed at the lower end of the cartridge, the ultrasonic device further comprising a pressure sensor for measuring the pressure applied to the outside.

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