Radiation treatment head and radiation treatment device
US11975216B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2018 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | Aug 8, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N5/1077
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A radiation treatment head can include: a radiation source and a primary collimator, wherein the radiation source is configured to emit a radioactive beam; wherein the primary collimator is provided with a plurality of primary collimation channel groups; each of the primary collimation channel groups includes at least one primary collimation channel; and the radiation source and the primary collimator are movable relative to each other, so that the beam emitted from the radiation source is permissible to pass through any one of the primary collimation channels; and wherein the beam emitted from the radiation source, after passing through primary collimation channels of different primary collimation channel groups, forms fields with different sizes of areas on a reference plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.