Contour collimator for radiation therapy

Details Contour collimator for radiation therapy Contour collimator for radiation therapy

1987-05-14

1988-12-27

Church, Craig E.

X-ray or gamma ray systems or devices

Beam control

Collimator

378150, 378146, 378 65, G21K 104

Patent

active

047946296

ABSTRACT:
A contour collimator has diaphragm plates arranged in displaceable fashion relative to one another. Each diaphragm plate is individually engageable with an adjustment element shared by all of the diaphragm plates for displacing one diaphragm plate relative to the remaining diaphragm plates. An interlock mechanism in engagement with the remaining diaphragm plates retains those plates in their respectively existing positions during displacement of the one plate. The adjustment element is displaceable from the one diaphragm plate to another diaphragm plate which can then be displaced by the adjustment element while the other plates are retained in position.

REFERENCES:
patent: 4463266 (1984-07-01), Brahme
patent: 4672652 (1987-06-01), Huttenranch et al.
patent: 4739173 (1988-04-01), Blosser et al.
"Confirmation Radio Therapy", Takahashi, Acta Radiologica, Suppl., 242, (1965).

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