Adjustable collimator and method
AssigneeGE Medical Systems Global Technology Company, LLC
InventorsJean-Pierre Saladin, Serge Louis Muller, Luc Gabriel Miotti
Life of this patent
Estimating the term…
Abstract
A collimator for X-ray apparatus has an aperture defined by the edges of four movable flexible shutters. Each shutter can be moved independently of the other shutters; thus, the position and the size of the aperture can be adjusted at will. The shutters are moved by winding them onto drums; each drum is driven by a stepping motor. Springs bias the shutters towards the closed position of the collimator.
Claims24
A collimator having an aperture defined by the edges of four movable flexible shutters each shutter being movable independently of the other shutters.
A method for collimating radiation from a source comprising the steps of:
- providing a collimator having an aperture defined by the edges of four movable flexible shutters;
- and
- moving each shutter independently of the other shutters to adjust collimation aperture.
Dependencies are inferred from the claim text.