The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2014
Filed:
Aug. 15, 2012
Calvin J. Huntzinger, San Carlos, CA (US);
David K. Jensen, Sunnyvale, CA (US);
William A. Strachan, San Francisco, CA (US);
Calvin J. Huntzinger, San Carlos, CA (US);
David K. Jensen, Sunnyvale, CA (US);
William A. Strachan, San Francisco, CA (US);
Varian Medical Systems, Inc., Palo Alto, CA (US);
Abstract
A beam filter positioning device includes a first and a second axes operable to move a body supporting one or more collimators, one or more photon flattening filters, one or more electron foils, and field light mirror etc. The collimators may be configured to collimate radiation to define a treatment beam suitable for radiosurgery. A controller is programmed to control the servo motor of the first and second axes to accurately position the beam filters. Radiation apparatuses and systems incorporating the beam filter positioning device or assembly are also provided.