Osseus stimulating electrodes
First Claim
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1. A surgical instrument for eliciting motor evoked potentials intraoperatively, comprising:
- an osseus structure probe having a probe distal end, the probe distal end being open; and
a stimulating wire having wire proximal and distal ends, the stimulating wire extending through the probe and being exposed in the open distal end, such that when the probe distal end is embedded in an osseus structure of a subject, and when the stimulating wire proximal end is in contact with a stimulus source, the exposed wire distal end is capable of delivering an electrical stimulus to the surrounding osseus structure.
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Abstract
This invention provides surgical instruments for eliciting motor evoked potentials intraoperatively during surgical procedures such as anterior cervical discectomy and fusions by providing a stimulus directly to an osseus structure such as a vertebral body.
32 Citations
38 Claims
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1. A surgical instrument for eliciting motor evoked potentials intraoperatively, comprising:
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an osseus structure probe having a probe distal end, the probe distal end being open; and
a stimulating wire having wire proximal and distal ends, the stimulating wire extending through the probe and being exposed in the open distal end, such that when the probe distal end is embedded in an osseus structure of a subject, and when the stimulating wire proximal end is in contact with a stimulus source, the exposed wire distal end is capable of delivering an electrical stimulus to the surrounding osseus structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An method of eliciting an evoked potential in a subject during a surgical procedure being performed on the subject by delivering a stimulus to the osseus structure of the subject, the method comprising the steps of:
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connecting to a subject'"'"'s osseus structure a surgical instrument, comprising;
an osseus structure probe; and
a stimulating wire extending through the probe to, and being exposed at its distal end at, the open probe distal end;
putting the stimulating wire proximal end in connection with a stimulus source and delivering a stimulus to the osseus structure via the exposed wire distal end; and
measuring an evoked potential elicited from the subject as a result of the delivered stimulus. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification