Radiation therapy apparatus
US7672435B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Feb 21, 2008 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Feb 21, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A radiation therapy apparatus has a multi-leaf collimator device, a driving gear, a torque wire and a driving unit. The multi-leaf collimator device has a pair of collimator components which respectively comprise a plurality of leaves arranged close to one another such that the leaves face one another across an irradiation axis, and configured to set a desired irradiation field by individually moving the leaves. The driving gear is engaged with a gear tooth of the each leaf, respectively. The torque wire is connected to a shaft center of the driving gear, respectively. The driving unit is configured to drive the driving gears through the torque wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.