Patent ID: 6730921
Filing Date: 2004-05-04
Classification: A61N

Abstract:
Ion beam system for irradiating tumour tissues at various irradiation angles (&ggr;) in relation to a horizontally arranged patient couch (1),wherein the patient couch (1) has an apparatus (2) for rotation about a vertical axis (3); and the ion beam system (4) has at least one of the following irradiation systems: a first irradiation system (5) having a symmetrical or asymmetrical scanning system (6) of fixed location, which has a central ion beam deflection region (7) for deflection angles (&bgr;) of up to Â±15Â° with respect to the horizontal direction and makes possible scanning of a tumour volume in the central ion beam deflection region (7), and which has an additional lifting apparatus (8) for the patient couch (1), the lifting apparatus (8) and the apparatus (2) for rotation of the patient couch being adjustable for adaptation to the deflection angle (&bgr;) and being non-modifiable during irradiation; a second irradiation system (9), which has an ion beam deflection apparatus (10), linearly displaceable and arranged to be fixed in terms of location, for a deflection angle (&bgr;) range greater than the first irradiation system (5) and a symmetrical scanning unit (11) for scanning the tumour volume, which scanning unit (11) is arranged downstream of the ion beam deflection apparatus (10) and is arranged to pivot synchronously with the deflection angle (&bgr;) of the ion beam deflection apparatus (10), an apparatus (2) for rotation of the patient couch (1) and a lifting apparatus (8) for the patient couch (1) being adjustable for adaptation of the patient couch (1) to the deflection angle (&bgr;) and being non-modifiable during irradiation.