# US 12,758,803 B2 · Lifting beauty device using high-intensity focused ultrasound

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- Number: US 12,758,803 B2
- Document ID: US12758803B2
- Status: Granted
- Kind: B2
- Application number: 19/116,436
- Filed: 2023-10-04
- Published: 2025-08-14
- Granted: 2026-10-13
- Earliest claimed: 2022-09-30
- Assignees: Wooahan Inc.
- Applicants: Wooahan Inc.
- Inventors: Daekyu Jang
- Web page: https://patentgrep.com/patent/US12758803B2

## CPC

- A61N 7/02: Localised ultrasound hyperthermia
- A61N 2007/0034: {Skin treatment}
- A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B)

## Abstract

The present invention provides a lifting beauty device using high-intensity focused ultrasound that includes a body portion having a circumference gripped by a hand of a user and configured to generate a rotational power as the user operates an operation button exposed on a surface, and a cartridge portion that is coupled to a front side of the body portion and emits high intensity focused ultrasound (HIFU) while moving along a corresponding path by the rotational power generated by the body portion and selectively switching an emission depth in two stages depending on an operation mode, that may selectively switch an emission depth of the high-intensity focused ultrasound (HIFU) such that the high-intensity focused ultrasound (HIFU) may selectively reach an SMAS (Superficial Musculo Aponeurotic System) layer, which is a fibrous fascia layer that is part of a muscle layer, or a dermis layer.

## Claims

### Claim 1

A lifting beauty device using high-intensity focused ultrasound, the lifting beauty device comprising:
a body portion having a circumference gripped by a hand of a user and configured to generate a rotational power as the user operates an operation button exposed on a surface; and
a cartridge portion coupled to an upper side of the body portion and having an ultrasonic oscillation head that emits high intensity focused ultrasound (HIFU) with the rotational power generated by the body portion and emits the high-intensity focused ultrasound (HIFU) in two emission depths while moving along a corresponding path,
wherein the cartridge portion includes a head module, and the head module includes:
a first head holder provided on a transfer screw in the cartridge portion and moving linearly in response to an axial rotation of the transfer screw, the transfer screw being rotated with the rotational power generated by the body portion;
a second head holder coupled to an upper side of the first head holder, the second head holder including the ultrasonic oscillation head;
a guide pin rotatably provided on the second head holder, the guide pin including semicircular guides formed on both ends of the guide pin; and
a guide plate arranged orthogonally to a longitudinal direction of the guide pin, the guide plate having a track groove that guides a guide of the guide pin along a path corresponding to the track groove such that the ultrasonic oscillation head emits the high-intensity focused ultrasound in the two emission depths.

### Claim 2 (depends on 1)

The lifting beauty device using the high-intensity focused ultrasound of claim 1, wherein the body portion includes:
a body housing that has an internal space having an internal length from top to bottom and includes a plurality of operation buttons on a surface;
a battery accommodated on the lower side of the internal space of the body housing and electrically connected to an external power source and an input terminal to be charged with electricity, and outputting the charged electricity through an output terminal;
an electric motor accommodated on an upper side of the internal space of the body housing, electrically connected to the output terminal of the battery, and causing a motor gear, which is rotatably provided on an upper side of the body housing, to rotate; and
a control board provided in the internal space of the body housing, electrically connected to the electric motor and the battery, and controlling a power output of the battery based on a signal input through the operation button to control operations of the electric motor and the cartridge portion.

### Claim 3 (depends on 2)

The lifting beauty device using the high-intensity focused ultrasound of claim 2, further comprising:
a coupling portion which is formed on the upper side of the body housing and into which a lower end of the cartridge portion is inserted; and
a pair of connection terminals which are spaced apart from the motor gear located at an inner center of the coupling portion by a certain distance and are electrically connected to the control board, and from which power is output to the cartridge portion through the control board.

### Claim 4 (depends on 3)

The lifting beauty device using the high-intensity focused ultrasound of claim 3, wherein the cartridge portion includes:
a cartridge housing having an internal space, including an insertion portion inserted into the coupling portion, and having an oval-shaped opening formed in an upper side through which the ultrasonic oscillation head is movable;
a rotational power transfer means accommodated on a lower side inside the cartridge housing and receiving and outputting the rotational power generated by the body portion;
a head transport means mechanically connected to the rotational power transfer means in the internal space of the cartridge housing and linearly transporting the head module with the rotational power output from the rotational power transfer means; and
the head module connected to the head transport means in the internal space of the cartridge housing and emitting the high-intensity focused ultrasound (HIFU) while linearly moving by the head transport means.

### Claim 5 (depends on 4)

The lifting beauty device using the high-intensity focused ultrasound of claim 4, wherein the rotational power transfer means includes:
a connection gear that is engaged with the motor gear; and
a first bevel gear connected to the connection gear by an axis to rotate in conjunction with a rotation of the connection gear.

### Claim 6 (depends on 5)

The lifting beauty device using the high-intensity focused ultrasound of claim 5, wherein the head transport means includes:
a rotation shaft having a second bevel gear, which is engaged perpendicularly with the first bevel gear, on one side and having a first spur gear on an opposite side of the one side; and
the transfer screw having a length that is parallel to a rotation axis of the rotation shaft and a screw thread formed in the length, and having a second spur gear, which is engaged with the first spur gear, on another side.

### Claim 7 (depends on 1)

The lifting beauty device using the high-intensity focused ultrasound of claim 1, wherein the track groove of the guide plate includes:
a first high-intensity focused ultrasound emission section that limits an emission depth of the focused ultrasound to 3.0 mm;
a second high-intensity focused ultrasound emission section that limits the emission depth of the focused ultrasound to 4.5 mm; and
a pair of emission depth switching sections connecting one side and another side of the first high-intensity focused ultrasound emission section respectively to one side and another side of the second high-intensity focused ultrasound emission section.
