Shape memory polymer
US9731045B2 · kind B2 · utility
3Cited by
100References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2014 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Jan 6, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2430/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A polymer is composed of a linear chain acrylate and a multi-functional acrylate cross-linker. The polymerized composition exhibits a transition at a temperature between about 34° C. and about 50° C. The polymerized composition exhibits shape memory effects. In one embodiment, the linear chain is tert-butyl acrylate and the crosslinker is polyethylene glycol dimethacrylate. The resultant shape memory polymers may be used in medical devices to provide devices with different shapes for pre and post implantation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.