Medical particle irradiation apparatus

Radiant energy – Irradiation of objects or material – Ion or electron beam irradiation

Reexamination Certificate

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Details

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.

REFERENCES:
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patent: 5993373 (1999-11-01), Nonaka
patent: 6218675 (2001-04-01), Akiyama et al.
patent: 6316776 (2001-11-01), Hiramoto et al.
patent: 19907097 (2000-08-01), None
patent: 11047287 (1999-02-01), None
patent: 20000140134 (2000-05-01), None
patent: 2001-129103 (2001-05-01), None
patent: 2001353228 (2001-12-01), None

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