X-ray or gamma ray systems or devices – Auxiliary data acquisition or recording – Patient or exposure data
Patent
1993-02-17
1994-09-20
Church, Craig E.
X-ray or gamma ray systems or devices
Auxiliary data acquisition or recording
Patient or exposure data
378162, H05G 128
Patent
active
053496272
ABSTRACT:
The invention concerns a method and an apparatus for marking a radiographic film in a dark room with patient data and/or similar information. The marks to be produced are made latent onto the film (F) in a form turning visible during the development of the film (F). The film (F) to be marked is transferred linearly in the marking apparatus, while the film (F) is simultaneously subjected to exposing marking radiation. The marking characters to be formed are sequentially composed from vertically adjacently placed elements (C.sub.1 . . . C.sub.N) using the above-mentioned linear motion of the film (F) as the shift in the direction of the marking character row. In conjunction with the entry of patient data, the identification information for the film cassette to be marked is entered from a keyboard such as a cassette number which is marked on the cassette in a form visible in the dark. The identification information for the film cassette is shown by the marking apparatus so assuring the marking of the correct data onto the correct film.
REFERENCES:
patent: 4860330 (1989-08-01), Strommer et al.
patent: 4983991 (1991-01-01), Palonen
Sormunen Juha
Strommer Pekka
Virta Arto
Church Craig E.
Planmeca Oy
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