Apparatus and method for positioning spinal cord stimulation leads
First Claim
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1. An apparatus comprising:
- a signal generating device for generating a stimulation signal;
at least two stimulation electrodes coupled to the signal generating device and adapted to deliver a stimulation signal from the signal generating device to the spinal nerves of a patient;
at least two detection electrodes adapted to be positioned at a region of the body of the patient to detect a bodily reaction to the stimulation signal from the signal generating device; and
a feedback device coupled to the at least two detection electrodes to display information corresponding to at least a position of the at least two stimulation electrodes relative to the dorsal column of the patient.
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Abstract
An apparatus for assisting in the placement of a spinal cord stimulation lead with respect to the dorsal column of a patient. The apparatus detects evoked potentials which result from the controlled stimulation of spinal nerves and provides information to an operator to allow a stimulation lead to be positioned relative to a physiological midline and/or positioned along the dorsal column in a longitudinal direction.
747 Citations
20 Claims
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1. An apparatus comprising:
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a signal generating device for generating a stimulation signal; at least two stimulation electrodes coupled to the signal generating device and adapted to deliver a stimulation signal from the signal generating device to the spinal nerves of a patient; at least two detection electrodes adapted to be positioned at a region of the body of the patient to detect a bodily reaction to the stimulation signal from the signal generating device; and a feedback device coupled to the at least two detection electrodes to display information corresponding to at least a position of the at least two stimulation electrodes relative to the dorsal column of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A spinal cord stimulation lead positioning apparatus having a signal generating device for generating a stimulation signal, the apparatus comprising:
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at least two stimulation electrodes adapted to be positioned approximately adjacent to the dura matter of a patient, wherein the at least two stimulation electrodes are electrically coupled to the signal generating device to deliver a stimulation signal from the signal generating device; at least two detection electrodes adapted to be positioned at or about the head of the patient to detect a bodily reaction to the stimulation signal from the signal generating device; an analysis unit, coupled to the at least two detection electrodes, to output a signal representative of a detected bodily reaction resulting from the stimulation signal; and an output device coupled to the analysis unit and responsive to the signal therefrom to display information corresponding to at least a position of the at least two stimulation electrodes relative to the dorsal column of the patient. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of positioning dorsal column stimulation electrodes relative to the dorsal column of a patient, the steps comprising:
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providing sensors at or about the head of the patient to detect bodily reaction to stimulation applied to the spinal nerves thereof, wherein the sensors are coupled to a feedback device to display information corresponding to at least a position of the stimulation electrodes relative to the dorsal column of the patient; electrically stimulating the spinal nerves of the patient; detecting a bodily reaction to the applied electrical stimulation; determining a position of the stimulation electrodes relative to the dorsal column of the patient based upon the detected bodily reaction; and displaying on the display device information corresponding to the determined position of the stimulation electrodes. - View Dependent Claims (17, 18, 19, 20)
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Specification