Motor driven x-ray grid and film-holder assembly

Details Motor driven x-ray grid and film-holder assembly Motor driven x-ray grid and film-holder assembly

1979-08-15

1982-01-12

Willis, Davis L.

Radiant energy

Radiant energy generation and sources

With radiation modifying member

A61B 600

Patent

active

043107664

ABSTRACT:
In an exemplary embodiment, an x-ray grid for shielding the film from stray radiation is formed of two U-shaped metal plates with interfitted sections at the respective sides, projecting laterally for coupling the grid to its drive and guidance elements. Known stray radiation grids are mounted in a metal plate frame which is moved by means of the motor drive. The disclosure shows a way by means of which the plate metal frame can be avoided and the structural thickness can be reduced. In a preferred embodiment, one guide section can be brought into releasable positive locking engagement with a support mounting part of the motor drive, and the other guide section is releasably engageable in a channel guideway of the housing, so that the two plates and interfitted sections with their enclosed lead (Pb) lamellae can be quickly removed and replaced when required.

REFERENCES:
patent: 2143799 (1939-01-01), Schonauder et al.
patent: 2767323 (1956-10-01), Stava et al.
patent: 2938120 (1960-05-01), Forsyth et al.
patent: 3660660 (1972-05-01), Pearson et al.

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