초록

A hermetically sealed implantable medical device is provided with a multi-pin arrangement including selected glass to metal or ceramic to metal seals for a feedthrough of the compression seal or matched seal type.

대표청구항 ▼

[ What is claimed is as follows:] [1.] An implantable medical device having an hermetically sealed case, comprising:a feedthrough hermetically sealed in an aperture of the case, the feedthrough comprising a ferrule of biocompatible, corrosion resistant metal and having an aperture of the ferrule, th

[ What is claimed is as follows:] [1.] An implantable medical device having an hermetically sealed case, comprising:a feedthrough hermetically sealed in an aperture of the case, the feedthrough comprising a ferrule of biocompatible, corrosion resistant metal and having an aperture of the ferrule, the insulator bodv comprising a material selected form the group consisting of boro-alumino silicate glass, boro silicate glass, and a ceramic and at least tow pins formed of biocompatible, corrosion resistant metal extending through the aperture of the ferrule in sealing engagement with the insulator body, the insulator body comprising a glass having a nominal composition of about:SiO.sub.2 =46.7 wt %B.sub.2 O.sub.3 =16.6 wt %Al.sub.2 O.sub.3 =4.4 wt %ZrO.sub.2 =9.9 wt %Na.sub.2 O=7.5 wt %K.sub.2 O=0.4 wt %CaO=14.5 wt %the pins comprising a metal selected from the group consisting of niobium and niobium/titanium alloy.