Microcoil vaso-occlusive device with multi-axis secondary configuration
US8323306B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2006 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Jul 14, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00867
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vaso-occlusive device includes a microcoil formed into a minimum energy state secondary configuration comprising a plurality of curved segments, each defining a discrete axis, whereby the device, in its minimum energy state configuration, defines multiple axes. Confinement of the device within an aneurysm causes it to assume a three-dimensional configuration with a higher energy state than the minimum energy state. Because the minimum energy state configuration of the device is larger (in at least one dimension) than the aneurysm, the deployed device is constrained by its contact with the walls of the aneurysm from returning to its minimum energy state configuration. The engagement of the device with the aneurysm wall minimizes shifting or tumbling due to blood flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.