Radiant energy – Irradiation of objects or material – Ion or electron beam irradiation
Reexamination Certificate
2005-06-07
2005-06-07
Lee, John R. (Department: 2881)
Radiant energy
Irradiation of objects or material
Ion or electron beam irradiation
C250S397000, C250S398000, C250S492100, C315S502000, C315S507000, C378S065000
Reexamination Certificate
active
06903356
ABSTRACT:
Disclosed is a medical particle irradiation apparatus comprising a rotating gantry1including an irradiation unit4emitting particle beams; an annular frame16located within and supported by the rotating gantry1such that it can rotate relative to the rotating gantry1; an annular frame15fixedly located opposite the annular frame16; an anti-corotation mechanism34being in contact with both the annular frames16and15to prevent the annular frame16from rotating together with the rotating gantry1during rotation of the rotating gantry1; and a flexible moving floor17interposed between the annular frames15and16, the flexible moving floor17being engaged with the annular frames15and16in such a manner as to move freely such that its bottom is substantially level and that it moves as the rotating gantry rotates.
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Akiyama Hiroshi
Asano Hidehito
Muramatsu Yutaka
Sagawa Wataru
Yamashita Tsutomu
Dickstein , Shapiro, Morin & Oshinsky, LLP
Gurzo Paul M.
Hitachi Setsubi Engineering Co., Ltd.
Lee John R.
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