Medical, radiotherapy source vial
US6494824B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1999 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Feb 20, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1021
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter apparatus and radiation dosimetry unit indicator for delivery of a prescribed radiation dose to a patient. A radiotherapy source vial (700) includes a fluid container (701) of radioactive fluid with a seal (702,731) disposed about the container. Seal (702,731) is moveable with respect to container (701) to change the contained volume therein. A radioactive fluid transport site (703) is in communication with the contained volume and with an exterior (726) of the container (701), and may include a septum (707) or a valve (711). An engagement mechanism (704) is connectable to an external control mechanism (706) whereby the contained volume in the radioactive fluid container can be decreased and increased by actuation of the external control mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.