Endovascular stent and delivery system
US5100429A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1989 |
| Grant date | Mar 31, 1992 |
| Priority date | — |
| Expiry date | Oct 20, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An uncured or partially cured, collagen-based material is delivered to a selected site in a blood vessel and is crosslinked in the blood vessel by laser energy or other suitable energy to form an endovascular stent. The collagen-based material can be delivered to the blood vessel as a coating on an inflatable balloon mounted on the distal end of a catheter. The collagen-based material can also be delivered to the blood vessel in liquid form and forced through a porous balloon to form a tubular configuration. The collagen-based material is preferably crosslinked by laser radiation carried through an optical fiber to a diffusing tip located within the balloon. In another embodiment, an endovascular stent is formed by rolling a flexible sheet of biologically-compatible material onto an outside surface of an inflatable balloon. A crosslinkable collagen-based adhesive is used to adhere overlapping portions of the sheet together in the blood vessel and can be used to attach the stent to an inside surface of the blood vessel. The collagen-based adhesive is crosslinked in the blood vessel by application of laser energy or other suitable energy. A photodegradable adhesive can be used on an …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.