Medtronic, Inc.

Kyocera Corporation

Rfstream Corporation

Keiichi Fujii

Gordon Orvis Munns

Thomas P Miltich

Andrew Jason Thom

Joyce Yamamoto

Markus W Reiterer

Hiroshi Makino

Hidekazu Otomaru

Kengo Morioka

Arne Knudsen

Shingo Satou

Hiroshi Ogasawara

Takatsugu Kamata

Kazunori Okui

Christopher Li

A hermetic feedthrough for an implantable medical device includes a sheet having a hole defined therethrough, wherein the sheet comprises a first material that is an electrically insulative ceramic comprising alumina. The feedthrough further includes a second material substantially filling the hole so as to form a conduit, the second material having platinum and an additive that includes alumina. The second material does not include SiO, MgO, or CaO. The first and second materials have a co-fired bond therebetween, the co-fired bond hermetically sealing the hole.

Hermetic feedthrough for an implantable medical device

A hermetic feedthrough for an implantable medical device includes an insulator, a conduit configured to conduct electricity through the insulator, and a ferrule coupled to the insulator. The insulator is formed from a ceramic material and the conduit and insulator have a co-fired bond therebetween, which hermetically seals the conduit with the insulator. The insulator is elongate and has opposing ends that include flat surfaces and the ferrule includes a frame for receiving the insulator.

Method of manufacturing a feedthrough

A hermetic feedthrough for an implantable medical device includes an insulator body and a ferrule. The insulator body includes ceramic material and one or more electrically conductive conduits extending through the insulator body. The insulator is disposed in an opening of the ferrule. The insulator body includes a plurality of substantially flat surfaces that each include a plurality of edges. A rounded corner extends between adjacent edges of any two adjacent substantially flat surfaces. Each corner between any two adjacent substantially flat surfaces that face toward the ferrule has an average radius that is less than approximately 25% of a length of the corresponding edges.

Insulator for a feedthrough

A tuner module comprising a tuner and a tuner enclosure. The tuner includes a substrate containing filter coils and the tuner enclosure includes at least one partition plate placed between filter coils of the tuner to improve the isolation between the filter coils. The substrate may also contain plated through holes placed beneath a partition plate which further improves isolation between the filter coils. In some embodiments, the substrate is comprised of a coil layer having a planar coil, a shield layer, and a dielectric layer. The dielectric layer is placed between the coil and shield layers and provides a distance between the two layers to achieve a particular quality factor level of the planar coil. In some embodiments, the tuner enclosure further includes a shielding case that extends to the base of the substrate, is comprised of a metal material, and is mechanically connected with the substrate.

Enclosure and substrate structure for a tuner module

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San Jose, CA, United States of America

Keiichi Fujii