Multi-leaf collimators and operating method

US8335296B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Markus Dehler · Wedel, DE
• Franz Dirauf · Ebensfeld, DE
• Bernhard Gottlieb · Munich, DE
• Andreas Kappel · Höhenkirchen-Siegertsbrunn, DE
• Donal Medlar · Weisendorf, DE
• Carsten Wallenhauer · Schwarzheide, DE
• Björn Werner · Solna, SE

Key dates

• Filing date: Sep 25, 2007
• Grant date: Dec 18, 2012
• Expiry date: Jan 5, 2028

Classification

• Technology area (CPC G): Physics
• CPC primary: G21K1/046
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Multi-leaf collimators have a guide frame (1) with a plurality of metal plates (3) arranged in a displaceable fashion, by which each individual metal plate can be displaced by an electric motor (M), with the electric motor (M) being a rotary electromechanical motor (M), which operates according to the form-fit principle, with electromechanical actuators.