Compact proton therapy system with energy selection onboard a rotatable gantry

US9757592B2 · kind B2 · utility

Assignees

• VARIAN MEDICAL SYSTEMS, INC. · US
• VARIAN MEDICAL SYSTEMS PARTICLE THERAPY GMBH & CO. KG · DE

Inventors

• Manuel Benna · Bensberg, DE
• Michael Schillo · Bonn, DE
• Juergen Schultheiss · Cologne, DE
• Luis Alberto CRUZ · Miami, US

Key dates

• Filing date: Feb 1, 2016
• Grant date: Sep 12, 2017
• Expiry date: Feb 1, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N2005/1095
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Systems and apparatuses for providing particle beams for radiation therapy with a compact design and suitable to a single treatment room. The radiation system comprises a stationary cyclotron coupled to a rotating gantry assembly through a beam line assembly. The system is equipped with a single set of dipole magnets that are installed on the rotating gantry assembly and undertakes the dual functions of beam energy selection and beam deflection. The energy degrader may be exposed to the air pressure. The beam line assembly comprises a rotating segment and a stationary segment that are separated from each other through an intermediate segment that is exposed to an ambient pressure.