Radiation imaging apparatus

• US 10,405,823 B1
• Filed: 09/06/2018
• Issued: 09/10/2019
• Est. Priority Date: 09/06/2018
• Status: Active Grant

• Current Assignee: Shimadzu Corporation
• Original Assignee: Shimadzu Corporation
• Inventors: Okutani, Keita, Tanaka, Masahiro
• Primary Examiner(s): Green, Yara B
• Application Number:
  US16/123,366
• Time in Patent Office: 369 Days
• CPC Class Codes: A61B 6/06 Diaphragms
• CPC Class Codes: A61B 6/107 Protection against radiation, e.g. shielding
• CPC Class Codes: A61B 6/467 characterised by special input means
• CPC Class Codes: A61B 6/487 involving fluoroscopy
• CPC Class Codes: A61B 6/548 Remote control of the apparatus or devices
• CPC Class Codes: A61B 6/566 involving communication between diagnostic systems
• CPC Class Codes: H05G 1/56 Switching-on; Switching-off

Abstract

A radiation imaging apparatus secures subject safety and includes a wireless communication unit of an operation panel and a wireless communication unit of a control unit performing periodical wireless communication. While operating, it is determined if wireless communication unit of the control unit is receiving a wireless communication signal from the wireless communication unit of the operation panel, or not. Then, when the wireless communication unit of the control unit is not receiving the wireless communication signal from the wireless communication unit of the operation panel, a movement control element of the control unit executes an emergency shutdown operation to halt movement of a support table, a X-ray tube, a collimator and a X-ray detector.

Claims

1. A radiation imaging apparatus, comprising:

a radiation imaging unit, further comprising;

a movement member that moves for executing a radiation imaging;

a control unit that controls a movement of said movement member; and

an operation panel that wirelessly connects with said control unit of said radiation imaging unit;

wherein, said operation panel further comprises;

an operation member that moves said movement member and an emergency shutdown operation member that enforces an emergency shutdown of said movement of said movement member;

operation and said control unit of said radiation imaging unit operable to carry out a periodical wireless communication in-between, and said control unit of said radiation imaging unit executes said emergency shutdown to halt said movement of said movement member when said periodical wireless communication is lost; and

wherein;

said control unit of said radiation imaging unit further comprises;

an emergency operation cancel unit that cancels said emergency shutdown operation even when said periodical wireless communication is lost regardless of a specific control function of said periodical wireless communication.

2. The radiation imaging apparatus, according to claim 1, wherein:

said radiation imaging unit, further comprises;

said movement member that includes a table on which a subject is laid, a radiation irradiation unit and a radiation detector, and

said control unit of said radiation imaging unit controls movements of said table, said radiation irradiation unit, and said detector.