X-ray or gamma ray systems or devices – Accessory – Alignment
Patent
1995-06-07
1996-11-05
Wong, Don
X-ray or gamma ray systems or devices
Accessory
Alignment
378205, 378190, A61B 608
Patent
active
055725686
ABSTRACT:
The present invention provides a radiation diagnosis apparatus which comprises a radiation generating apparatus for emitting radiation to a subject placed on a bed, an image pickup apparatus arranged so as to face the radiation generating apparatus for picking up the radiation passed through the subject as radiation image, a first light projecting device for irradiating first light along a central axis of irradiation visual field of the radiation, and a second light projecting device for irradiating second light intersected with the first light irradiated by the first light projecting means along the central axis, whereby the center of the irradiation visual field can be indicated.
REFERENCES:
patent: 4426726 (1984-01-01), Cheetham
patent: 4836671 (1989-06-01), Bautista
patent: 5283808 (1994-02-01), Cramer et al.
Kabushiki Kaisha Toshiba
Wong Don
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