IMPLANTABLE NEUROSTIMULATION LEAD FOR HEAD PAIN

摘要

An implantable peripheral neurostimulation lead for head pain is adapted for implantation in the head for the therapeutic purpose of treating chronic head and/or face pain. The lead may include a lead body, a plurality of internal electrically conducting metal wires individually connecting to a proximal surface contact and a distal surface electrode; a distal extended metal surface electrode array; and a proximal in-line connector. The lead may be operable to provide medically acceptable therapeutic neurostimulation to multiple regions of the head, including the frontal, parietal, and occipital regions of the head simultaneously. The lead may include a supraorbital electrode array with electrodes of 3 to 5 mm in length spaced apart at 4 to 6 mm intervals. The lead may also include a temporal electrode array with electrodes of 4 to 6 mm in length spaced apart at 8 to 12 mm intervals.

主权项

1. An implantable neurostimulation lead comprising:
a lead body having a length with a proximal end and a distal end, the lead body further comprising contiguous portions including a proximal lead body portion, a central lead body portion and a distal lead body portion,
wherein the distal lead body portion comprises:a cross section that tapers along at least a portion of the length thereof toward the distal end thereof,wherein the distal lead body portion has an angle of taper that is greater than an angle of taper of the central body portion, anda terminal lead body on the distal end of the distal lead body portion; a plurality of electrode arrays spaced linearly on an exterior surface of the distal lead body portion, and not on the exterior surface of the central lead body portion, the plurality of electrode arrays including:
a distal supraorbital electrode array positioned on the terminal lead body proximate to the distal end including at least six supraorbital electrodes each having a length of 3 to 5 mm, the supraorbital electrodes uniformly spaced apart at 4 to 6 mm intervals with the distal most supraorbital electrode positioned from 2 to 4 mm from the distal end of the terminal lead body; anda temporal electrode array including at least 4 temporal electrodes each having each having a length of from 4 to 6 mm, the temporal electrodes uniformly spaced apart from 8 to 12 mm apart with the most distal temporal electrode spaced from 16 to 24 mm from the most proximate supraorbital electrode; and a plurality of internal conductive wires in the lead body wherein each wire of the plurality of internal conductive wires is connected to a different electrode of the plurality of electrodes and extends to the proximal end of the lead body.