Invention Grant
- Patent Title: Hermetic terminal for an active implantable medical device having a feedthrough capacitor partially overhanging a ferrule for high effective capacitance area
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Application No.: US16360372Application Date: 2019-03-21
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Publication No.: US10912945B2Publication Date: 2021-02-09
- Inventor: Robert A. Stevenson , Christine A. Frysz , Jason Woods
- Applicant: Greatbatch Ltd.
- Applicant Address: US NY Clarence
- Assignee: Greatbatch Ltd.
- Current Assignee: Greatbatch Ltd.
- Current Assignee Address: US NY Clarence
- Agent Michael F. Scalise
- Main IPC: A61N1/375
- IPC: A61N1/375 ; H01R13/26 ; A61N1/378 ; H01R13/52 ; H01R4/58 ; H03H1/00

Abstract:
A filter feedthrough for an AIMD includes an electrically conductive ferrule. An insulator hermetically seals a ferrule opening with either a first gold braze, a ceramic seal, a glass seal or a glass-ceramic seal. At least one conductive pathway is hermetically sealed to and disposed through the insulator body in non-conductive relationship with the ferrule. A feedthrough capacitor includes at least one active and ground electrode plate disposed within a capacitor dielectric and electrically connected to a capacitor active metallization and a capacitor ground metallization, respectively. At least a first edge of the feedthrough capacitor extends beyond a first outermost edge of the ferrule. At least a second edge of the feedthrough capacitor does not extend beyond a second outermost edge of the ferrule, or said differently, the second edge is either aligned with or setback from the second outermost edge of the ferrule.
Public/Granted literature
Information query
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