Atraumatic electrode lead

摘要

A cochlear implant includes a processor, an array of electrodes disposed along a flexible body and a lead body connecting the processor to the array of electrodes. The lead body includes a first tube having a first outside diameter, a second tube having a second outside diameter smaller than the first diameter, a portion of the second tube being disposed within the first tube, and wires passing through the first tube and the second tube, the wires comprising a helically coiled portion. A method for forming a lead body is also provided.

主权项

1. A cochlear implant comprising:
a processor: an array of electrodes disposed along a flexible body; and a lead body connecting the processor to the array of electrodes, the lead body comprising:
a first tube having a first outside diameter;a second tube having a second outside diameter smaller than the first diameter, a portion of the second tube being disposed within the first tube, wherein the second tube extends outside of the first tube toward the flexible body; andwires passing through the first tube and the second tube, the wires comprising a helically coiled portion; wherein the lead body comprises an additional length between the processor and the array of electrodes to accommodate formation of a loop in the lead body during implantation to absorb force.