Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1998-12-30
1999-12-07
Getzow, Scott M.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
A61N 122
Patent
active
059998555
ABSTRACT:
A method and apparatus are provided for electrical stimulation of the expiratory muscles in a human or other mammal to produce cough in patients with spinal cord injuries resulting in paralysis of their expiratory muscles. The method of electrically activating expiratory muscles of a human patient or other mammal includes positioning a first epidural electrode at a first location on the dorsal surface of a spinal cord of a patient and a second epidural electrode, if necessary, at a second location on the dorsal surface of the patient's spinal cord. The first epidural electrode is positioned on the spinal cord dorsal surface in the region of the T.sub.9 -T.sub.10 spinal root level, while the second epidural electrode is positioned in the region of the lower thoracic spinal root, at the T.sub.12 -L.sub.1 spinal cord level. Electrical stimulation pulses are selectively passed to the first and second epidural electrodes from an implanted radio-frequency receiver and stimulation pulse generator to activate expiratory muscles of the patient to produce cough. The invention provides a safe, effective, and portable means by which spinal cord injured patients are able to clear secretions more easily and thereby improve their lifestyle and reduce the morbidity and mortality due to respiratory complications.
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