Method of expanding an intradiscal space and providing an osteoconductive path during expansion
US9295565B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | May 28, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/3092
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method is provided for expanding an intradiscal space between opposing vertebral bodies by expanding an expandable interbody fusion device and establishing an osteoconductive path between the opposing vertebral bodies through the device during expansion. The device is expanded by introducing at least one intermediate element between an upper element and a lower element to achieve ligamentotaxis. Each of the upper element, intermediate element and lower element comprises a region of porous biocompatible material coated or impregnated with material having relatively high osteoconductive and osteoinductive properties. During and upon expansion the regions are stress loaded by the opposing vertebral bodies to promote fusion between the vertebral bodies through the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.