Delivery wire assembly for occlusive device delivery system
US8992563B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 27, 2010 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Feb 14, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/12063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A delivery wire assembly for delivering an occlusive device to a location in a patient's vasculature, includes delivery wire conduit defining a conduit lumen, a core wire disposed in the conduit lumen, the core wire having a distal detachment zone, and an enhancing coil disposed around the distal detachment zone, the enhancing coil configured to transfer a distally directed force from the delivery wire assembly to objects located distal of the delivery wire assembly without damaging the distal detachment zone. In one embodiment, the enhancing coil includes a proximal section having a first diameter, a distal section having a diameter larger than the diameter of the proximal section, and a transition section connecting the respective proximal and distal sections, wherein the transition section flares radially in a distal direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.