Intraluminal prostheses having polymeric material with selectively modified crystallinity and methods of making same
US6932930B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2003 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Nov 4, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/139
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods of manufacturing polymeric intraluminal prostheses include annealing the polymeric material to selectively modify the crystallinity thereof. Annealing may be utilized to selectively modify various properties of the polymeric material of an intraluminal prosthesis, including: selectively increasing the modulus of the polymeric material; selectively increasing the hoop strength of the intraluminal prosthesis; selectively modifying the elution rate (increase or decrease) of a pharmacological agent subsequently disposed on or within the annealed polymeric material; selectively increasing/decreasing stress in the intraluminal prosthesis; and selectively modifying the polymeric material such that it erodes at a different rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.