X-ray or gamma ray systems or devices – Accessory – Alignment
Patent
1994-06-08
1996-09-03
Porta, David P.
X-ray or gamma ray systems or devices
Accessory
Alignment
378170, 378205, A61B 614
Patent
active
055531156
ABSTRACT:
A medical X-ray apparatus capable of indicating the center of radiation cone of X-ray, regardless of the positioning distance or angle, always with high visibility on the irradiation surface of the patient,
REFERENCES:
patent: 1378007 (1921-05-01), Campion
patent: 1753151 (1930-04-01), Israel
patent: 2939008 (1960-05-01), Goodfriend
patent: 3745344 (1973-07-01), Updegrave
patent: 3777140 (1973-12-01), Graf
patent: 4426726 (1984-01-01), Cheetham
patent: 5068887 (1991-11-01), Hughes
Title: "Sieman's Optical Viewfinder for the X-ray Machine" Author: Unknown Date of Publication: Unknown (Assumedly in 1955) Place of Publication: Germany.
Arai Eiichi
Odaka Masaki
Okagami Yoshihide
Yuba Akira
J. Morita Manufacturing Corporation
Porta David P.
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