Device for irradiating a tumor tissue
First Claim
1. Apparatus for irradiating tumour tissue (3) of a patient (10) by means of an ion beam (2), having a deflecting device (1) for the ion beam (2) for slice-wise and area-wise scanning of the tumour tissue (3) and an accelerator having an ion beam energy control device for step-wise and depth-wise scanning of the tumour tissue (3), characterised in that the apparatus further has:
- an electromechanically driven ion-braking device (11, 12), which is used as a depth-wise scanning adaptation apparatus (5) for adapting the range of the ion beam (2) and which has faster depth-wise adaptation than the energy control device of the accelerator, a movement detection device (7) for detecting a temporal and positional change in the location of the tumour tissue (3) in a treatment space (8), and a control device which controls the deflecting device (1) and the depth-wise scanning adaptation apparatus (5) for adjusting the ion beam direction and the ion beam range, respectively, when scanning the tumour tissue (3) in the course of temporal and positional change in the location of the tumour tissue (3) in the treatment space (8).
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Accused Products
Abstract
The invention relates to an apparatus and a method for irradiating tumour tissue (3) of a patient (10) by means of an ion beam (2). For that purpose, the apparatus has a deflecting device (1) for the ion beam (2) for slice-wise and area-wise scanning of the tumour tissue (3) and an ion beam energy control device for slice-wise and depth-wise scanning of the ion beam (2). An electromechanically driven ion-braking device (11, 12) is provided as a depth-wise scanning adaptation apparatus (5) for adapting the range of the ion beam (2) and has faster depth-wise adaptation than the energy control device of an accelerator. The movement of a patient is monitored by means of a movement detection device (7) for detecting a temporal and positional change in the location of the tumour tissue (3) in a treatment space (8). A control device controls the deflecting device (1) and the depth-wise adaptation apparatus (5) for adjusting the ion beam direction and ion beam range, respectively, when scanning the tumour tissue (3) in the course of temporal and positional change in the location of the tumour tissue (3) in the treatment space (8).
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Citations
19 Claims
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1. Apparatus for irradiating tumour tissue (3) of a patient (10) by means of an ion beam (2), having
a deflecting device (1) for the ion beam (2) for slice-wise and area-wise scanning of the tumour tissue (3) and an accelerator having an ion beam energy control device for step-wise and depth-wise scanning of the tumour tissue (3), characterised in that the apparatus further has: -
an electromechanically driven ion-braking device (11, 12), which is used as a depth-wise scanning adaptation apparatus (5) for adapting the range of the ion beam (2) and which has faster depth-wise adaptation than the energy control device of the accelerator, a movement detection device (7) for detecting a temporal and positional change in the location of the tumour tissue (3) in a treatment space (8), and a control device which controls the deflecting device (1) and the depth-wise scanning adaptation apparatus (5) for adjusting the ion beam direction and the ion beam range, respectively, when scanning the tumour tissue (3) in the course of temporal and positional change in the location of the tumour tissue (3) in the treatment space (8). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. Method of irradiating tumour tissue of a patient by means of an ion beam (2), which method comprises the following method steps:
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placing the patient (10) on an apparatus matched to the contour of the patient for positioning the patient (10) in an irradiation space (8), applying markings to a region of the body of the patient (10), close to the tumour tissue (3), determining the temporal and positional change in the markings by means of a movement detection device (7) or capturing X-ray images of the tumour tissue from two mutually perpendicular directions of X-ray beams orthogonal to the ion beam, adjusting the ion beam (2), whilst scanning the tumour tissue using an ion beam deflecting device (1) and an ion beam energy control device, by means of an additional depth-wise scanning adaptation apparatus (5), which adapts the range of the ion beam to the temporal and positional changes in the markings or tumour tissue, determined by the movement detection device (7), in co-operation with the ion beam deflecting device (1).
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Specification