Method of implanting a lead for brain stimulation
First Claim
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1. A method of implanting a brain stimulating lead, consisting essentially of:
- identifying a theoretical target for brain stimulation;
creating a point of entry into the brain;
inserting a lead and a microelectrode into the brain to a position above the theoretical target;
advancing the microelectrode toward the theoretical target to locate a stimulation target;
advancing the lead to the stimulation target located by the microelectrode;
performing test stimulation with the lead to confirm location of the stimulation target;
removing the microelectrode; and
securing the lead,wherein inserting the lead and the microelectrode comprises,holding a first cannula in a substantially fixed position external to the body;
slidably supporting a second cannula with the first cannula;
positioning the second cannula with a proximal end extending beyond the proximal end of the first cannula and a distal end extending beyond the distal end of the first cannula and into the body;
inserting the lead and the microelectrode through the second cannula; and
pulling the second cannula away from the patient'"'"'s brain.
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Abstract
Leads and introduction tools are proposed for deep brain stimulation and other applications. Some embodiments of the present invention provide lead designs with which may be placed with a stylet, while others do not require a stylet. Some lead embodiments use standard wire conductors, while others use cable conductors. Several embodiments incorporate microelectrodes and/or microelectrode assemblies. Certain embodiments of the present invention provide introduction tools, such as cannula and/or cannula systems, which ensure proper placement of, e.g., leads.
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7 Claims
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1. A method of implanting a brain stimulating lead, consisting essentially of:
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identifying a theoretical target for brain stimulation; creating a point of entry into the brain; inserting a lead and a microelectrode into the brain to a position above the theoretical target; advancing the microelectrode toward the theoretical target to locate a stimulation target; advancing the lead to the stimulation target located by the microelectrode; performing test stimulation with the lead to confirm location of the stimulation target; removing the microelectrode; and securing the lead, wherein inserting the lead and the microelectrode comprises, holding a first cannula in a substantially fixed position external to the body; slidably supporting a second cannula with the first cannula; positioning the second cannula with a proximal end extending beyond the proximal end of the first cannula and a distal end extending beyond the distal end of the first cannula and into the body; inserting the lead and the microelectrode through the second cannula; and pulling the second cannula away from the patient'"'"'s brain. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification