System for safe implantation of radioisotope stents
US5605530A · kind A · utility
Inventors
Key dates
| Filing date | Mar 23, 1995 |
| Grant date | Feb 25, 1997 |
| Priority date | — |
| Expiry date | Mar 23, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1094
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
There is provided a radiation shield for protecting a health care worker from ionizing radiation prior to and during delivery of a radioisotope stent into a patient's blood vessel. The radiation shield is placed coaxially over at least a distal portion of a stent delivery catheter assembly carrying or having formed therein a radioactive stent. The radiation shield is maintained about the distal portion of the catheter assembly until delivery of the radioactive stent is to occur. During the stent's delivery, the catheter assembly is axially displaced relative to the radiation shield to pass therethrough, then into the patient's blood vessel. A protective barrier is thus continually maintained between the health care worker and the radioactive stent he or she is delivering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.