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US 5,165,106 AGranted
Contour collimator
AssigneeSiemens Medical Laboratories, Inc.
InventorsNorbert Barthelmes, Rafael Nita
Life of this patent
Estimating the term…
Abstract
In a contour collimator for radiation therapy, a variable aperture is formed by two stacks of aperture plates, which are mounted opposite one another. The aperture plates are connected to a setting mechanism in order to alter the aperture created between the opposed aperture plates. All the aperture plates of each stack are arranged on a respective axle. The aperture plates can be rotated individually around the axles and into the aperture.
Claims13
A contour collimator, comprising:
- two stacks of aperture plates rotatably mounted opposite to one another on respective opposed axles in a support means and creating an aperture between said opposed stacks of aperture plates;
- a setting mechanism operatively connected to said aperture plates for individually rotating said aperture plates about said opposed axles and thereby altering said aperture created between said opposed stacks of aperture plates.
Dependencies are inferred from the claim text.