# US 12,178,628 B2 · Hand-grip type oral X-ray device having alignment function

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- Number: US 12,178,628 B2
- Document ID: US12178628B2
- Status: Granted
- Kind: B2
- Application number: 17/919,604
- Filed: 2020-10-26
- Published: 2023-06-01
- Granted: 2024-12-31
- Earliest claimed: 2020-08-13
- Assignees: Nanoray Co., Ltd
- Applicants: Nanoray Co., Ltd.
- Inventors: Jae Yoon Park; Won Seong
- Web page: https://patentgrep.com/patent/US12178628B2

## CPC

- A61B 6/512: {Intraoral means}
- A61B 6/4405: {the apparatus being movable or portable, e.g. handheld or mounted on a trolley}
- A61B 6/587: {Alignment of source unit to detector unit}
- A61B 6/52: {Devices using data or image processing specially adapted for radiation diagnosis}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A hand-grip type oral X-ray device having an alignment function according to an embodiment includes an X-ray tube configured to generate and emit X-rays, an X-ray receiver including a first gyro-sensor and a first communication module, having, at a corner thereof, a magnet configured to generate a magnetic force, and configured to receive the X-rays generated from the X-ray tube to acquire X-ray data about an object in the oral cavity, and a handle including a rod-shaped grip operable by the hand of a user and an extension arm connecting the X-ray receiver and the grip to each other, and coupled to the X-ray receiver.

## Claims

### Claim 1

A hand-grip type oral X-ray device having an alignment function, the hand-grip type oral X-ray device comprising:
an X-ray tube configured to generate and emit X-rays;
an X-ray receiver comprising a first gyro-sensor, first communication module, and a magnet positioned at a corner of the X-ray receiver, configured to generate a magnetic force, the X-ray receiver configured to receive the X-rays generated from the X-ray tube to acquire X-ray data about an object in an oral cavity; and
a handle comprising a rod-shaped grip operable by a hand of a user and an extension arm connecting the X-ray receiver and the grip to each other, the handle coupled to the X-ray receiver,
wherein the handle comprises:
an image generating unit configured to process a radiographic image taken by the X-ray receiver through a radiographic image processing program to generate a radiographic image file in a form that can be visually ascertained by the user;
a first display unit configured to display the radiographic image generated by the image generating unit;
a memory unit configured to store the radiographic image taken by the X-ray receiver; and
a power supply unit configured to supply power to the X-ray receiver and the handle, wherein the X-ray tube comprises:
a second gyro-sensor;
a Hall sensor configured to sense the magnetic force formed by the magnet;
an ultrasonic sensor configured to sense the X-ray receiver by generating ultrasonic waves; and
a proximity sensor configured to sense a distance between the X-ray tube and the X-ray receiver.

### Claim 2 (depends on 1)

The hand-grip type oral X-ray device of claim 1, wherein the X-ray tube comprises a second communication module for bidirectional communication with the first communication module, and the first communication module and the second communication module use a Bluetooth or Wi-Fi type wireless short-range communication protocol.

### Claim 3 (depends on 1)

The hand-grip type oral X-ray device of claim 1, wherein the X-ray tube comprises:
an alignment check unit configured to check whether position, lateral, distance, and horizontal alignments between the X-ray tube and the X-ray receiver have been made; and
a second display unit configured to display information of whether the position, lateral, distance, and horizontal alignments between the X-ray tube and the X-ray receiver have been made.

### Claim 4 (depends on 3)

The hand-grip type oral X-ray device of claim 3, wherein the alignment check unit determines whether the horizontal alignment between the X-ray receiver and the X-ray tube has been made on the basis of data sensed by the first gyro-sensor and the second gyro-sensor.

### Claim 5 (depends on 3)

The hand-grip type oral X-ray device of claim 3, wherein the alignment check unit senses the X-ray receiver through the ultrasonic waves emitted from the ultrasonic sensor to determine whether the position alignment of the X-ray receiver has been made.

### Claim 6 (depends on 3)

The hand-grip type oral X-ray device of claim 3, wherein the alignment check unit senses the magnetic force generated from the magnet to determine whether the lateral alignment of the X-ray receiver has been made.

### Claim 7 (depends on 3)

The hand-grip type oral X-ray device of claim 3, wherein the alignment check unit senses the distance between the X-ray tube and the X-ray receiver through the proximity sensor to determine whether the distance alignment of the X-ray receiver has been made.

### Claim 8 (depends on 1)

The hand-grip type oral X-ray device of claim 1, further comprising a sensor coupler connecting the handle and the X-ray receiver to each other,
wherein the sensor coupler has a hinge structure that allows the X-ray receiver to be rotated in left and right directions relative to the handle.

### Claim 9 (depends on 1)

The hand-grip type oral X-ray device of claim 1, further comprising a sensor coupler connecting the handle and the X-ray receiver to each other,
wherein the sensor coupler is configured in the form of a ball stud for ball joint at a side of the handle, the X-ray receiver is provided on an inner side of a surface thereof with a bearing coupled to the ball stud, and the ball stud and the bearing are coupled to allow the X-ray receiver to be rotatable relative to the handle.

### Claim 10 (depends on 8)

The hand-grip type oral X-ray device of claim 8, wherein the sensor coupler has a hinge structure that allows the X-ray receiver to be rotated in a range of 90 degrees to −90 degrees relative to the handle.

### Claim 11 (depends on 1)

The hand-grip type oral X-ray device of claim 1, wherein the handle comprises at least one of a configuration in which a part or entirety of the grip is configured to be bendable and a configuration in which the extension arm is configured to be bendable.

### Claim 12 (depends on 1)

The hand-grip type oral X-ray device of claim 1, wherein the power supply unit is configured by selecting any one of a battery and a supercapacitor, and the power supply unit comprises a power charging unit configured to charge the power supply unit.

### Claim 13 (depends on 9)

The hand-grip type oral X-ray device of claim 9, wherein the sensor coupler has a hinge structure that allows the X-ray receiver to be rotated in a range of 90 degrees to −90 degrees relative to the handle.