Detachable pusher-vasoocclusive coil assembly with interlocking ball and keyway coupling
US5261916A · kind A · utility
842Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1991 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Dec 12, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/9505
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pusher-vasoocclusive coil assembly that is advanced through a catheter to a site within a vessel and is manipulated to detach the coil from the assembly. The coil has an enlarged member at its proximal end and the pusher has a keyway at its distal end that receives the enlarged member in interlocking engagement. The pusher and coil are coupled by placing the enlarged member in the keyway and enclosing the coupled assembly with a coaxial sleeve. The coil-pusher-sleeve assembly is positioned at the site and the sleeve is retracted to allow the member to move out of the keyway to uncouple the pusher and coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.