Method and apparatus for epidural burst stimulation for angina p

Details Method and apparatus for epidural burst stimulation for angina p Method and apparatus for epidural burst stimulation for angina p

1990-08-30

1991-10-22

Kamm, William E.

Surgery

Truss

Pad

A61N 136

Patent

active

050585843

ABSTRACT:
Method of and apparatus for the treatment of angina pectoris using electrical stimulation within the epidural space of the spinal cord. A sensor is used to trigger stimulation only during periods of activity assumed to be symptomatic. The sensor may measure any of a number of parameters including blood oxygen saturation level or mechanical activity. In the preferred embodiment, a piezoelectric activity sensor is programmed to determine when the level of activity is reached at which angina is expected to occur in a particular patient. This determination is used to trigger an implantable pulse generator. Bursts of high frequency stimulation energy are applied by an insulated lead to electrodes implanted in the epidural space at an upper thoracic or lower cervical location. The increased neural activity caused by the stimulation bursts eliminates the pain sensation and allows an equal or higher exercise level of the patient without pain or at a similar pain level. The epidural stimulation does not decrease coronary perfusion at the same exercise level. When sensed body activity decreases below a second programmed level, electrical stimulation is inhibited.

REFERENCES:
patent: 3572345 (1971-03-01), Auphan
patent: 3822708 (1974-07-01), Zilber
patent: 4019518 (1977-04-01), Maver et al.
patent: 4026301 (1977-05-01), Friedman et al.
patent: 4044774 (1977-08-01), Corbin et al.
patent: 4669477 (1987-06-01), Ober

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