Stent-graft assembly with thin-walled graft component and method of manufacture
US6488701B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1998 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Mar 31, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2023/007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stent-graft assembly having a thin-walled membrane and method of preparing the same are disclosed. In a first embodiment, the assembly comprises a stent, a coating and a porous membrane, wherein the membrane is less than 0.040 inch thick or less. Portions of the coating extend into the pores of the thin membrane to sealingly engage the membrane to achieve secure adhesion. In a second embodiment the coating and thin membrane bond to form a homogenous structure. In an alternative embodiment, the assembly comprises an inner and outer thin membrane bound to one another through the interstices of the support member and a coating at the proximal and distal regions. In any of the foregoing embodiments, the proximal and distal regions of the stent-graft assembly may comprise an additional coating, whereby layers of material are sealed, thereby minimizing thrombogenic potential of free ends of the assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.