Diffusing alpha-emitter radiation therapy with enhanced beta treatment
US12246191B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Oct 4, 2023 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Oct 4, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1098
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An interstitial source including a base suitable for implanting in a tumor and radioactive atoms of one or more isotopes, which are attached to the base. The radioactive atoms have a radon release rate of at least 0.5 micro-Curie (μCi) per centimeter length, and emit beta radiation achieving at 2 millimeters from the base an asymptotic dose of at least 10 Gy. Additionally, the ratio between the beta radiation asymptotic dose at a distance of 2 millimeters from the device, to the radon release rate, is greater than 15 Gy/(microcurie/cm).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.