Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1994-08-11
1996-04-16
Kamm, William E.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
A61N 136
Patent
active
055077889
ABSTRACT:
A method and apparatus for applying electrical stimulation signals to muscles at a stimulation frequency which is varied in response to a detected ripple signal in an output tension or torque record which corresponds to the amount of fusion in the muscle contraction. An average torque amplitude is first determined as a stimulation signal is applied at an initial frequency, and the amplitude of the ripple on the torque output is determined and compared to the average torque amplitude to provide a ripple percentage. The measured ripple percentage is compared to a selected ripple percentage corresponding to the desired amount of fusion, and the stimulation frequency is adjusted by a feedback loop until the measured ripple percentage conforms to the selected value.
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Kamm William E.
The Regents of the University of California
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