Cyberonics, Inc.

Jeffrey B Stewart

Shan E Gaw

David K Brown

Kent W Leyde

David L Thompson

Christopher Genau

Rajesh Ramesh

Charles Ritrivi

John E Rodriguez

Eric M Lewis

A method and system for management of thermal energy produced during transcutaneous energy transmission to provide power to energize implanted medical devices. A phase changing material (PCM) acts as a heat sink to absorb thermal energy generated during the energy transfer process. The PCM can be thermally coupled to tissue proximate to an implanted medical device, enabling heat generated within the implantable device to be absorbed. The generation of heat during the energy transfer process is primarily caused by eddy currents induced in the implantable device by the magnetic flux produced by the energy transfer system. The PCM can also be used to absorb heat generated by the device producing the magnetic flux that is used to transcutaneously transfer electrical power to recharge a rechargeable power source or energize the implanted medical device.

Phase change material as a dynamic heat sink for trancutaneous energy transmission systems

An implantable medical device having a concave ceramic housing component; a concave metal housing component attached to the ceramic housing component to form a hermetically sealed enclosure; and an electronic trans-housing magnetic flux component disposed within the enclosure. Another aspect of the invention provides an implantable medical device having a ceramic housing component; a metal housing component; a circumferential sealing member attached to a periphery of the ceramic housing component and to a periphery of the metal housing component to form a hermetically sealed enclosure; and an electronic trans-housing magnetic flux component disposed within the enclosure. Still another aspect of the invention provides an implantable medical device with a first metal housing component; a second metal housing component, the second metal housing component forming an opening; a ceramic housing component disposed in the opening, the first metal housing component, the second metal housing component and the ceramic housing component cooperating to form a hermetically sealed enclosure; and an electronic trans-housing magnetic flux component disposed within the enclosure.

Housing for an implantable medical device

Growing community of inventors

Tacoma, WA, United States of America

Jeffrey B Stewart