Three dimensional, low friction vasoocclusive coil, and method of manufacture
US6171326A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1998 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Aug 27, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/12145
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The three dimensional, low friction vasoocclusive coil has a distal portion that is three dimensionally shaped, and a proximal portion that is linear or helically shaped. The distal three dimensional portion will form a basket for filling the anatomical cavity at the site in the vasculature to be treated, while the proximal portion will fill and reinforce the basket. The vasoocclusive device is formed from at least one strand of a flexible material formed to have an a first inoperable, substantially linear configuration for insertion into and through a catheter or cannula to a desired portion of the vasculature to be treated, and a second operable, three dimensional configuration for occluding the desired portion of the vasculature to be treated. The vasoocclusive device has a distal portion having a second operable, three dimensional shape for filing the anatomical cavity at the site in the vasculature to be treated, and a proximal portion having a second operable, substantially linear shape for filling and reinforcing the distal, three dimensional shaped portion when it is implanted at the site in the vasculature to be treated. Mandrels are provided for use in the method of makin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.