Direct current stimulation of spinal interbody fixation device
US6292699A · kind A · utility
77Cited by
17References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1999 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Jan 29, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/205
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A spinal fusion stimulator comprising an interbody fusion cage or other interbody fixation device adapted to be implanted in the intervertebral disc space of a patient's spine, the interbody fusion cage in the preferred embodiment having a hollow body with internal and external conductive surfaces. The stimulator includes a constant current generator connected to the interbody fusion cage and set to provide a DC current effective to produce a surface current density of at least 1 .mu.A/cm.sup.2 in the interbody fusion cage when implanted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.