Method of sterilizing polymeric struts and stents
US7964136B2 · kind B2 · utility
21Cited by
6References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2007 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Dec 13, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0098
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
It has been determined that gamma sterilization of biodegradable polymer stents does not cause significant polymer cross-linking and collapse. Using sufficient spacing can lead to stents that display little if any detrimental effects from the procedure. In certain embodiments, using structures in the general region of about 100 micron spacing between the struts leads to highly functional stents that do not fuse. Further, the resulting stent has radially homogenous mechanical properties. Therefore, the stent has a uniform expansion within the lumen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.