Spinal fusion device with porous material
US5645598A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1996 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Apr 15, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00796
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implant for insertion into at least one bore formed between opposing vertebrae of a spine where the vertebrae are separated by a space and each vertebrae has end plates. The implant is in the shape of a solid generally cylindrical body having a first and a second end, an outer surface, opposing sides and a longitudinal axis. The body has threads on a portion of the outer surface between the first and second ends with the threads being configured for threading into bone. The body includes at least one through slot positioned between the opposing sides, with the through slot containing a biocompatible porous material for allowing the growth of bone through the slot of the body. The through slot is positioned between generally opposing sides of the body so as to provide contact between the biocompatible porous material and the end plates of the opposing vertebrae when the implant is inserted into at least one bore formed between the opposing vertebrae. Depending on the chosen material, the biocompatible porous material may also exhibit characteristics of osteoconductive or osteoinductive materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.