Embolic coil hydraulic deployment system with purge mechanism
US6544225B1 · kind B1 · utility
44Cited by
71References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2000 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Feb 29, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/12081
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical device for placing an embolic coil at a preselected location within a vessel comprising a positioning catheter having a distal section for retaining the embolic coil and an aperture for purging air from the device. The aperture is sized to allow air under fluid pressure to freely escape from within the catheter but to highly restrict the flow of more viscous fluids. At higher fluid pressures, the wall of the distal section expands outwardly to release the coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.