Systems and methods for reversibly blocking nerve activity
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United States of America Patent
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Jun 17, 2008
Grant Date -
Jul 1, 2004
app pub date -
Feb 20, 2002
filing date -
Feb 20, 2001
priority date (Note) -
Reissued
status (Latency Note)
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Abstract
Systems and methods for blocking nerve impulses use an implanted electrode located on or around a nerve. A specific waveform is used that causes the nerve membrane to become incapable of transmitting an action potential. The membrane is only affected underneath the electrode, and the effect is immediately and completely reversible. The waveform has a low amplitude and can be charge balanced, with a high likelihood of being safe to the nerve for chronic conditions. It is possible to selectively block larger (motor) nerve fibers within a mixed nerve, while allowing sensory information to travel through unaffected nerve fibers.
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