# US 2017/0281116 A1 · X-ray imaging apparatus for rounds

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2017/0281116 A1
- Document ID: US20170281116A1
- Status: Published application
- Kind: A1
- Application number: 15/507,462
- Filed: 2014-09-03
- Published: 2017-10-05
- Earliest claimed: 2014-09-03
- Assignees: Shimadzu Corporation
- Applicants: Shimadzu Corporation
- Inventors: Norimasa HISHIDA
- Web page: https://patentgrep.com/patent/US20170281116A1

## CPC

- A61B 6/56: {Details of data transmission or power supply, e.g. use of slip rings}
- A61B 6/06: Diaphragms
- A61B 6/4405: {the apparatus being movable or portable, e.g. handheld or mounted on a trolley}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

This X-ray imaging apparatus for rounds includes inside a cart a battery, a charging circuit adapted to limit charging current flowing through the battery, and a control circuit, in which the control circuit includes: a power supply voltage detecting part adapted to detect power supply voltage supplied from an external power supply; a charged voltage detecting part adapted to detect the charged voltage of the battery; a charging current detecting part adapted to detect charging current at the time when the battery is charged; and a charging current value control part adapted to, depending on a variation in the power supply voltage detected by the power supply voltage detecting part, control a charging current value set for the charging circuit.

## Claims

### Claim at position 1

1-2. (canceled)

### Claim 3

An X-ray imaging apparatus for rounds, comprising: an apparatus main body mounted with a battery; an X-ray tube supported by the apparatus main body via a supporting member; and an X-ray detector adapted to detect an X-ray that has been emitted from the X-ray tube and passed through a subject, wherein the battery serves as a power supply, the apparatus comprising:
a control circuit having:
a voltage detecting part adapted to detect voltage that is inputted from an external power supply to a charging circuit when charging the battery; and
a charging current control part adapted to, during a certain time after a start of the charging of the battery, change a setting value of charging current for the battery depending on a drop rate of a value of the voltage detected by the voltage detecting part.

### Claim 4 (depends on 3)

The X-ray imaging apparatus for rounds, according to claim 3, wherein the charging current control part increases the setting value of the charging current in one of a multistep manner or at a predetermined gradient during the certain time after the start of the charging of the battery.