Ultrasonic techniques for neurostimulator control

Details Ultrasonic techniques for neurostimulator control Ultrasonic techniques for neurostimulator control

1996-04-04

1997-05-13

Lateef, Marvin M.

Surgery

Truss

Pad

12866206, 607 48, A61B 812

Patent

active

056283172

ABSTRACT:
A lead adapted to be implanted adjacent a spinal cord located within a spinal column of a vertebrate in order to facilitate stimulation of the spinal cord or adjacent tissue. An ultrasonic transmitter/receiver produces an ultrasonic sound wave that creates ultrasonic echo waves reflected from a predetermined portion of the spinal cord and generates a distance signal related to the distance between the transducer/receiver and the predetermined portion of the spinal cord. The distance signal is used to adjust the amplitude of an electrical stimulation signal that stimulates the spinal cord or adjacent tissue so that the value of the stimulation signal tends to remain uniform in spite of changes in the relative distance between the transducer/receiver and the predetermined portion of the spinal cord.

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