Expandable spinal implant device
US8377140B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2011 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Apr 1, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00023
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An expandable spinal implant device for supporting vertebral bodies can include first and second body members and first and second expansion mechanisms. The body members can each have a first end positionable toward one of the vertebral bodies and can each define a hollow interior. The expansion mechanisms can be spaced apart from each other and can include a first drive shaft and a second drive shaft, respectively. The first and second drive shafts can each have a gear member fixedly coupled thereto. Each drive shaft can be threadably engaged at a first side to the first body member and at a second side to the second body member. The expansion mechanisms can be operable to effect axial displacement of the first body member relative to the second body member by rotationally driving the gear members of the first and second drive shafts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.