Inflatable interspinous spacer
US9168072B2 · kind B2 · utility
3Cited by
15References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2009 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | May 1, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00557
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is directed to an inflated interspinous spacer. The interspinous spacer is inserted into the interspinous space between adjacent spinous process in a deflated or unexpanded state, and is inflated or expanded with an injectable filler material. Upon inflation, the spacer preferably distracts the spinous processes and assumes a shape that retains the spacer in position and preferably mechanically locks with the spinous processes. The spacer includes two separate balloons configured to have different compressive modulus so that one balloon is softer and more deformable than the other balloon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.