Adaptive aperture
US11786754B2 · kind B2 · utility
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749References
20Claims
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Key dates
| Filing date | Jan 3, 2022 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Jan 3, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1095
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An example particle therapy system includes a particle accelerator to output a particle beam having a spot size; a scanning system for the particle accelerator to scan the particle beam in two dimensions across at least part of a treatment area of an irradiation target; and an adaptive aperture between the scanning system and the irradiation target. The adaptive aperture includes structures that are movable relative to the irradiation target to approximate a shape to trim part of the treatment area. The part of the treatment area has a size that is based on an area of the spot size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.