X-ray or gamma ray systems or devices – Beam control – Filter
Reexamination Certificate
2005-05-24
2005-05-24
Church, Craig E. (Department: 2882)
X-ray or gamma ray systems or devices
Beam control
Filter
C378S159000
Reexamination Certificate
active
06898271
ABSTRACT:
A switching mechanism is configured such that a lower limb radiographic filter11ais moved inside a radiation field of the X-rays that is an opening portion of an X-ray movable restriction only when radiographing a region of a subject from the groin to the toe, or the filter is moved outside the radiation field when radiographing the lumber region of the subject. With this switching mechanism thus constituted, it is possible to lighten a burden of the operator, and realize the X-ray radiographic apparatus having high universality.
REFERENCES:
patent: 4329590 (1982-05-01), Adelmeyer
patent: 5185775 (1993-02-01), Sirvin
patent: 5195121 (1993-03-01), Charrier
patent: 6633627 (2003-10-01), Horiuchi
Akutsu Kouji
Miyamoto Wataru
Nakata Isao
Nakayama Tetsu
Umeda Mitsuru
Church Craig E.
Rankin, Hill Porter & Clark LLP
Shimadzu Corporation
Yun Jurie
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