초록 ▼

A hermetic, leak-proof, corrosion resistant electrical feedthrough especially for use with implantable pulse generators. The feedthrough includes a titanium or niobium ferrule, an alumina insulator with a niobium braze area thereon positioned within the ferrule and sealed to the ferrule by a braze o

A hermetic, leak-proof, corrosion resistant electrical feedthrough especially for use with implantable pulse generators. The feedthrough includes a titanium or niobium ferrule, an alumina insulator with a niobium braze area thereon positioned within the ferrule and sealed to the ferrule by a braze of gold at the braze area, electrical lead wires of niobium, tantalum, tungsten, molybdenum or alloys thereof extending through corresponding openings in the insulator, and a body of fusible glass joining and sealing each lead wire to the insulator.

대표청구항 ▼

An improved hermetic, leak-proof, corrosion resistant electrical feedthrough, particularly adaptable to miniaturization and multi-pin construction and to IPG use, the feedthrough having substantially matched-expansion/compression joints and comprising: at least one electrical lead wire consisting es

An improved hermetic, leak-proof, corrosion resistant electrical feedthrough, particularly adaptable to miniaturization and multi-pin construction and to IPG use, the feedthrough having substantially matched-expansion/compression joints and comprising: at least one electrical lead wire consisting essentially of a metal or alloy selected from the group consisting of niobium, tantalum, tungsten, molybdenum and alloys thereof; an alumina insulator positioned around a portion of the lead wire intermediate the ends thereof, the insulator including a niobium coated braze area electrically remote from the lead wire; a ferrule consisting essentially of titanium or niobium positioned around the niobium area of the alumina insulator for receiving same in sealing relationship, a braze consisting essentially of gold joining and sealing the ferrule to the insulator in the area of the niobium coating thereon, and a body of fusible glass joining and sealing the lead wire to the insulator.