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:
Apr. 14, 2020
Filed:
Mar. 27, 2017
Varian Medical Systems, Inc., Palo Alto, CA (US);
Anuj K. Purwar, Fremont, CA (US);
James E. Clayton, Saratoga, CA (US);
Dragos E. Constantin, Los Altos, CA (US);
Gard E. Meddaugh, Mountain View, CA (US);
Matthew C. Schmidt, Henderson, NV (US);
Mark E. Trail, Menlo Park, CA (US);
Flavio Poehlmann, Fremont, CA (US);
Varian Medical Systems, Inc., Palo Alto, CA (US);
Abstract
A medical apparatus includes: a beam deflector having an electromagnet configured to provide a first magnetic field for deflecting a particle beam; and a current control configured to adjust a current of the electromagnet in correspondence with an energy level associated with an accelerator. A treatment planning method includes: defining control points in a treatment plan; setting up energy switching in one or more of the control points; and performing treatment optimization on the treatment plan based at least in part on the energy switching that is set up in the one or more of the control points. The medical apparatus also includes an energy adjuster configured to adjust the treatment energy so that the treatment energy has a first energy level when the beam output is at the first gantry angle, and a second energy level when the beam output is at the first gantry angle.