Stretch resistant embolic coil delivery system with mechanical release mechanism
US7708754B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2007 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Nov 19, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/12054
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical device for placing an embolic device at a predetermined site within a vessel of the body including a delivery catheter and a flexible pusher member slidably disposed within the lumen of the catheter. An embolic device is retained within the delivery catheter by a mechanical interlocking mechanism which includes an engagement member attached to the distal end of the pusher member and extends through a retaining ring at the proximal end of the embolic device. A detachment member extends through an aperture at the distal end of the engagement member thereby locking the embolic device onto the pusher member. A kicker member extends from the distal end of the pusher member and is comprised of a shape memory material adapted to lift the retaining ring off of the engagement member at human body temperature when the detachment member is withdrawn from the aperture of the engagement member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.