Title:
RELATIVE NERVE MOVEMENT AND STATUS DETECTION SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO2001093748
Kind Code:
A3
Abstract:
A method and system for detecting nerve status and relative movement between a nerve and a proximity electrode (21). The method determines relative movement between a nerve and a proximity electrode (21) by applying multiple signals to a calibration electrode (22) where the energy level of each signal induces a predetermined nerve response. The method also applies multiple signals to the proximity electrode (21) where the energy level of each signal also induces a predetermined nerve response. Based on the variation of the energy level of signals required to induce predetermined nerve responses, the method may detect relative movement between a nerve and a proximity electrode (21).
Inventors:
MARINO JAMES F
Application Number:
PCT/US2001/018579
Publication Date:
May 23, 2002
Filing Date:
June 08, 2001
Export Citation:
Assignee:
NUVASIVE INC (US)
International Classes:
A61B5/0488; A61B5/05; A61B5/11; A61N1/08; (IPC1-7): A61B5/05
Foreign References:
| US4291705A | 1981-09-29 | |||
| US3664329A | 1972-05-23 | |||
| US5549656A | 1996-08-27 | |||
| US4744371A | 1988-05-17 | |||
| US5853373A | 1998-12-29 |
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