Bioabsorbable blend for temporary scaffolding of the blood vessel wall
US9138511B2 · kind B2 · utility
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6References
21Claims
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Key dates
| Filing date | Jun 30, 2014 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Jun 30, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/80
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bioabsorbable blend comprising poly(L-lactide) (PLLA) and a phosphorylcholine group-containing copolymer (PPCP) capable of enduring the mechanical strength of blood vessel walls and applicable for fabricating cardiovascular devices was developed. The blend acts as a scaffold to support blood vessel walls during vascular healing and undergoes biodegradation in vivo after vascular healing is complete. Furthermore, the blend can prevent the formation and adsorption of thrombi.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.