The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 2021
Filed:
Feb. 08, 2021
B Dot Medical Inc., Tokyo, JP;
Takuji Furukawa, Tokyo, JP;
Yousuke Hara, Tokyo, JP;
B DOT MEDICAL INC., Tokyo, JP;
Abstract
The invention provides a charged particle irradiation apparatus including: a focusing magnet that deflects a charged particle beam to continuously change an irradiation angle of the beam to an isocenter; an irradiation nozzle that continuously moves along a shape on an exit side of an effective magnetic field region of the focusing magnet, wherein the beam exiting the focusing magnet is emitted to the isocenter through the irradiation nozzle; a power supply rail along the shape on the exit side of the region; and a collector shoe fixed to the irradiation nozzle and configured to slide along the rail to supply power from the rail to the irradiation nozzle. A surface of the collector shoe contacted with the rail has the same bend radius as or average bend radius of the rail, and/or the collector shoe slides along the rail in contact with a flat side surface of the rail.