Method of forming implantable vascular grafts
US4738740A · kind A · utility
220Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1985 |
| Grant date | Apr 19, 1988 |
| Priority date | — |
| Expiry date | Nov 21, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7534
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Vascular grafts are provided that have an external surface which has a porous structure that is conducive to tissue ingrowth thereinto after the vascular graft has been implanted. The vascular graft is prepared by winding an extruded fiber onto a mandrel in the presence of intermittently applied electrostatic forces. Such vascular graft may include an internal surface that was formed under the influence of the electrostatic charge, which internal surface has a porosity that is substantially less than that of said porous external surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.