Patent ID: 8550974
Filing Date: 2013-10-08
Classification: A61M,F04D,H02G

Abstract:
1. An implantable electromechanical medical device having integrated miniature electric feedthroughs comprising: a. an enclosure, made of corrosion resistant metal, ceramic, or other materials that are impervious to body fluids, containing the stator of an electric motor, solenoid, or linear actuator, said enclosure having a generally tubular outer wall and a generally concentric tubular inner wall and having two generally washer shaped end walls, thus forming a compartment between the tubular inner and outer walls and the two end walls, within which said stator is contained, b. a generally cylindrical hole through the enclosure within which a magnetic component is mounted for rotary or reciprocal linear motion around or along a longitudinal axis, such that magnetic fields transmitted from the stator within the hermetically sealed enclosure exert torque or linear forces upon said magnetic component, c. at least two separated electrical wires passing through one of said end walls, insulated from contact with said end wall by hermetic insulators with ceramic to metal or glass to metal seals that directly affix the wires and insulators within holes through said housing end wall without the use of a ferrule, and wherein each electric wire passes through a separate hole in said end wall within which it is sealed and insulated by a surrounding glass or ceramic ring, and the diameter of said hole is greater than one half of the radial dimension of the motor stator contained within said enclosure.