초록 ▼

A feedthrough configuration for a hermetically sealed implantable medical device includes a metal case having an aperture and a feedthrough in the aperture which includes a ferrule sealed in the aperture, a pin extending through the ferrule and the aperture, an insulating material supporting the pin

A feedthrough configuration for a hermetically sealed implantable medical device includes a metal case having an aperture and a feedthrough in the aperture which includes a ferrule sealed in the aperture, a pin extending through the ferrule and the aperture, an insulating material supporting the pin within the ferrule and an electrically conductive block spaced from the ferrule and in electrical connection with the pin. A device for electrical or electromagnetic protection can be connected to a peripheral upstanding portion of the ferrule and a peripheral skirt portion of the block. This arrangement of feedthrough elements can be particularly useful if the protective device is a chip capacitor which typically has a flat-sided configuration that can bridge the space between the ferrule and the block and be connected at one end to the block and at the other end to the ferrule.

대표청구항 ▼

[ We claim:] [1.] A hermetically sealed implantable medical device, comprising:(a) a metal case having an interior surface and an exterior surface and an aperture extending between the interior and exterior surfaces; and(b) a feedthrough disposed in the case aperture, comprising:(1) an electrically

[ We claim:] [1.] A hermetically sealed implantable medical device, comprising:(a) a metal case having an interior surface and an exterior surface and an aperture extending between the interior and exterior surfaces; and(b) a feedthrough disposed in the case aperture, comprising:(1) an electrically conductive ferrule disposed in the case aperture and in sealing engagement therewith, the ferrule having a first outer peripheral surface upstanding from one of the case surfaces;(2) an electrically conductive pin extending through the ferrule and the aperture such that the pin has a first end projecting from the exterior surface of the case and a second end projecting from the interior surface of the case;(3) an insulating material supporting the pin within the ferrule and in sealing engagement with the ferrule and with the pin;(4) a preformed electrically conductive block spaced from the ferrule and in electrical connection with the pin, the block having a second outer peripheral surface substantially in alignment with the first outer peripheral surface of the ferrule, wherein the conductive block is spaced from the ferrule by the insulating material; and(5) a device for electrical or electromagnetic protection electrically connected at and mounted to a first point on the first outer peripheral surface of the ferrule and electrically connected at and mounted to a second point on the second outer peripheral surface of the block.