Implantable radiation therapy device having controllable radiation emission
US6471631B1 · kind B1 · utility
43Cited by
20References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2000 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | May 22, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1024
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable radiation therapy device includes a biocompatible radiotranslucent outer capsule containing a radiation shielding element and a radioactive isotope at least partially shielded by the shielding element. When the device is at or below body temperature, radiation is prevented or limited from being transmitted through the outer capsule by the shielding element. When non-ambient energy is applied to the device, the shielding element and radioactive isotope are reconfigured such that an increased level of radiation is transmitted through the outer capsule and emitted by the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.