X-ray or gamma ray systems or devices – Electronic circuit – Exposure timer
Patent
1988-02-01
1989-10-17
Fields, Carolyn E.
X-ray or gamma ray systems or devices
Electronic circuit
Exposure timer
378147, 378162, A61B 606
Patent
active
048752258
ABSTRACT:
An x-ray video system for the transillumination of an examination subject has an x-ray system which generates a transillumination image of a patient using an x-ray beam having a central ray, a diaphragm for gating the x-ray beam which has a number of plates, each moveable relative to the central ray, a signal generator associated with each plate which generates a signal corresponding to the position of the associated plate relative to the central ray, a mixer for combining the plate position signals with the transillumination image, and a display which generates the transillumination image with the position signals mixed therewith in the form of marks on the transillumination image.
REFERENCES:
patent: 3668402 (1972-06-01), Palermo et al.
patent: 3934151 (1976-01-01), Stowe et al.
patent: 4174481 (1979-11-01), Liebetruth
patent: 4514859 (1985-04-01), Holzer
patent: 4609940 (1986-09-01), Born et al.
patent: 4672652 (1987-06-01), Huttenrauch et al.
patent: 4730351 (1988-05-01), Heumann
Fields Carolyn E.
Hynds Joseph A.
Siemens Aktiengesellschaft
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