Adjustable collimator for mammography

Details Adjustable collimator for mammography Adjustable collimator for mammography

1977-11-21

1978-10-24

Church, Craig E.

Radiant energy

Radiation controlling means

250511, G21F 504

Patent

active

041223500

ABSTRACT:
An adjustable collimator is provided for use in mammography in which there is a mounting ring for securing the collimator to an x-ray source; a collimating cone having a plurality of leaves, each pivotably secured at one end thereof to said mounting ring and positioned in overlapping relationship to one another to define at their opposite ends a substantially kidney shaped opening through which x-rays may be directed to a female breast positioned below said cone; and a collar positioned about and capturing the plurality of leaves and to be raised and lowered along the leaves relative to said mounting ring to adjust the size of the opening.

REFERENCES:
patent: 3448270 (1969-06-01), Peyser
patent: 3609370 (1971-09-01), Peyser
patent: 3997794 (1976-12-01), York

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