Patent ID: 8100132
Filing Date: 2012-01-24
Classification: A61B,A61N

Abstract:
1. A fixation device for immobilizing a head of a patient relative a treatment unit or medical device during treatment of the head, said fixation device comprising an interface unit adapted to be fixated in relation to an adaptor unit for connection to the treatment unit, or to a frame for connection to the medical device; a sliding plate configured to be slidable in relation to said interface unit in an xz-plane of a coordinate system, said system being a Cartesian coordinate system defined by three orthogonal axis having an x-axis extending in the medial-lateral direction of the patient, an y-axis extending in the anterior-posterior direction, and a z-axis extending in the cranial-caudal direction; a plate locking device configured to lock said sliding plate in relation to said interface unit; a bite-block configured to be inserted into a mouth of the patient; a linking device configured to link said bite-block with said sliding plate; at least one pivot point arranged such that the bite-block is movable at least in a plane orthogonal to the xz-plane; and a link locking device configured to lock said at least one pivot point in a desired position in relation to said linking device so as to fixate the bite-block to the interface unit.