Radiotherapy and imaging apparatus
US9694205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2010 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Mar 17, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1055
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Radiotherapy apparatus comprises a source of radiation mounted on a chassis, that is rotatable about a rotation axis and the source being adapted to emit a beam of radiation along a beam axis; a patient support, moveable along a translation axis; a set of magnetic coils located on either side of the beam, for establishing a magnetic field along a first direction; the translation axis, the rotation axis, and the first direction being substantially parallel; and further comprising a multi-leaf collimator fixed in its orientation with respect to the source of radiation, the multi-leaf collimator comprising a plurality of elongate leaves disposed with their longitudinal directions substantially aligned with the first direction and movable in that direction between a withdrawn position in which the leaf lies outside the beam, an extended position in which the leaf projects across the beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.