Implantable electrode and method for fabrication

Details Implantable electrode and method for fabrication Implantable electrode and method for fabrication

A - Human Necessities

61

N

26/112, 326/17.5

A61N 1/05 (2006.01)

Patent

CA 2036286

IMPLANTABLE ELECTRODE AND METHOD FOR FABRICATION ABSTRACT An implantable electrode of the type in which an elongated wire coil forms the electrode surface. The electrode coil is mounted around an insulative lead body and is stabilized on the lead body by means of a plastic filler between the individual turns of the electrode coil, extending radially outward to approximately one- third of the diameter of the electrode coil wire. The filler is produced by stretching a portion of the lead body which normally displays an outer diameter greater than the inner diameter of the electrode coil, sliding the electrode coil over the lead body and inserting a mandrel into the lead body to urge the lead body into contact with the electrode coil. This assembly is heated to encourage flow of the lead body into the spaces between the electrode coil to stabilize the coil on electrode body and to prevent fibrotic ingrowth around the electrode coil wire.

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