Mechanically-activated shape memory polymer spinal cage
US8808385B1 · kind B1 · utility
24Cited by
10References
20Claims
0Family size
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Key dates
| Filing date | Jan 6, 2013 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | May 27, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/30784
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Provided herein are shape memory polymer spinal cages including polymers with intended deployment at temperatures far below the onset of the glassy transition of the shape memory polymer. The described shape memory polymer spinal cages are adapted to be deployed by mechanical activation rather than thermal activation or activation by other stimuli. Thus, the shape memory polymers used herein are configured to have transition temperatures far above their temperatures of intended use, thereby requiring mechanical activation to recover stored strains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.