Patent · US Active

3D printed ceramic to metal assemblies for electric feedthroughs in implantable medical devices

US11103713B2 · kind B2 · utility

0Cited by

7References

7Claims

0Family size

Assignee

MED-EL Elektromedizinische Geraete GmbH · AT

Inventors

Dominik Hammerer · Innsbruck, AT
Janika Boltz · Innsbruck, AT

Key dates

Filing date	Jul 26, 2019
Grant date	Aug 31, 2021
Priority date	—
Expiry date	Jul 26, 2039

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61N1/36038
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An electrical feedthrough assembly for an implantable medical device includes an outer ferrule of metallic material having an outer surface hermetically sealed to an implantable device housing. There is an inner feedthrough assembly which is hermetically sealed within the ferrule and which has a structure of sintered layers that include: i. an electrical insulator of ceramic insulator material, ii. one or more electrically conductive vias of metallized conductive material embedded within and extending through the electrical insulator, and iii. a transition interface region around each of the conductive vias comprising a gradient mixture of the ceramic insulator material and the metallized conductive material forming a gradual transition and a mechanical bond between the electrical insulator and the conductive via.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.