Interbody vertebral prosthetic device with self-deploying screws
US10045860B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2008 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Nov 3, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00179
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intervertebral prosthesis includes: a body including first and second spaced apart major surfaces defining a longitudinal axis extending substantially normal to said surfaces and at least anterior and posterior sidewalls extending therebetween, the first and second major surfaces for engaging endplates of first and second vertebral bones of a spine; an aperture extending from within the body, transversely to the longitudinal axis, and opening at a major surface; an anchoring element disposed within the aperture and including a threaded shaft; and a gear disposed adjacent to and in meshed, threaded communication with the threaded shaft of the anchoring element such that rotation of the gear causes rotation of the anchoring element, and a driving rotational force on the gear causes the anchoring element to rotate, deploy from the body, and thread into a vertebral bone transverse to the longitudinal axis of the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.