MULTI-BRANCH STIMULATION ELECTRODE FOR SUBCUTANEOUS FIELD STIMULATION

摘要

A multi-branch stimulation electrode is disclosed herein. The multi-branch stimulation electrode can include a plurality of branches that extend from a hub. The branches can each include one or several stimulation contacts that can deliver an electrical current to tissue contacting the stimulation contacts. The stimulation contacts can be electrically connected with the lead. The lead can extend from the hub and can be connected with the pulse generator. The branches can include features to facilitate implantation including, for example, one or several removable stiffening elements.

主权项

1. An implantable electrode array system, comprising:
(a) a multi-branch electrode array, the multi-branch electrode array comprising a plurality of elongated branches extending along an insertion axis, wherein each branch includes at least one electrode contact and a blunt dissecting distal tip; and (b) an implantation cartridge for deploying the multi-branch electrode array from a retracted configuration to a deployed configuration, wherein, when in the retracted configuration, the branches are positioned proximally relative to the implantation cartridge, and, wherein, when in the deployed configuration, the branches extend distally and laterally outwardly along a first transverse orientation, relative to the insertion axis, from the implantation cartridge a further distance than in the retracted configuration; and wherein, when in the deployed configuration, the branches are positioned with a first branch disposed between a second branch and a third branch, and a fourth branch disposed between the second branch and the first branch so that the electrode array is distributed along a thin surface.