Surgery – Truss – Pad
Patent
1983-10-24
1986-03-11
Kamm, William E.
Surgery
Truss
Pad
A61N 136
Patent
active
RE0320919
ABSTRACT:
A dual channel neuromuscular stimulator. Pulses developed by a pulse generator are transmitted alternately on both channels to involuntarily contract muscles. The stimulator has variable on/off cycling capability to provide flexibility in meeting the stimulation needs of patients and has output current adjustments and other variable parameter settings to achieve optimum neuromuscular stimulation. To enhance patient comfort, the stimulation output of the stimulator can be slowly "ramped up" to its full stimulation power to allow the increase in stimulation to occur at various rates to accommodate the differing characteristics of different muscle groups. A jack is provided to permit the stimulation to be controlled by an external switch operated by a clinician to coordinate stimulation of various muscle groups with voluntary muscle contraction by the patient. The jack can also be connected to a heel operated switch to stimulate muscle groups to allow certain disabled persons to walk normally. The balanced biphasic output waveform of the stimulator has a zero net DC component to minimize the possibility of skin rash developing from stimulation.
REFERENCES:
patent: 3344792 (1965-01-01), Offner et al.
patent: 3478744 (1969-11-01), Leiter
patent: 3794022 (1974-02-01), Nawracaj et al.
patent: 3888261 (1975-06-01), Maurer
patent: 3983881 (1976-10-01), Wickham
Breimayer Joseph F.
Duthler Reed A.
Kamm William E.
Medtronic Inc.
Rooney John L.
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