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PROCESS FOR MANUFACTURING A LEADLESS FEEDTHROUGH FOR AN ACTIVE IMPLANTABLE MEDICAL DEVICE
A method of manufacturing a feedthrough dielectric body for an active implantable medical device includes the steps of: a) forming an alumina ceramic body in a green state, or, stacking upon one another discrete layers of alumina ceramic in a green state and pressing; b) forming at least one via hole straight through the alumina ceramic body; c) filling the at least one via hole with a ceramic reinforced metal composite paste; d) drying the alumina ceramic body and the ceramic reinforced metal composite paste; e) forming a second hole straight through the ceramic reinforced metal composite paste being smaller in diameter in comparison to the at least one via hole; f) filling the second hole with a substantially pure metal paste; g) sintering the alumina ceramic body, the ceramic reinforced metal composite paste and the metal paste; and h) hermetically sealing the feedthrough dielectric body to a ferrule.
PROCESS FOR MANUFACTURING A LEADLESS FEEDTHROUGH FOR AN ACTIVE IMPLANTABLE MEDICAL DEVICE
A method of manufacturing a feedthrough dielectric body for an active implantable medical device includes the steps of: a) forming an alumina ceramic body in a green state, or, stacking upon one another discrete layers of alumina ceramic in a green state and pressing; b) forming at least one via hole straight through the alumina ceramic body; c) filling the at least one via hole with a ceramic reinforced metal composite paste; d) drying the alumina ceramic body and the ceramic reinforced metal composite paste; e) forming a second hole straight through the ceramic reinforced metal composite paste being smaller in diameter in comparison to the at least one via hole; f) filling the second hole with a substantially pure metal paste; g) sintering the alumina ceramic body, the ceramic reinforced metal composite paste and the metal paste; and h) hermetically sealing the feedthrough dielectric body to a ferrule.
PROCESS FOR MANUFACTURING A LEADLESS FEEDTHROUGH FOR AN ACTIVE IMPLANTABLE MEDICAL DEVICE
SEITZ KEITH W (author) / RENSEL DALLAS J (author) / HOHL BRIAN P (author) / CALAMEL JONATHAN (author) / TANG XIAOHONG (author) / STEVENSON ROBERT A (author) / FRYSZ CHRISTINE A (author) / MARZANO THOMAS (author) / WOODS JASON (author) / BRENDEL RICHARD L (author)
2018-07-12
Patent
Electronic Resource
English
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