Optimizing size of implantable medical devices by isolating the power source

US7953493B2 · kind B2 · utility

Assignee

• EBR Systems, Inc. · US

Inventors

• Robert Fowler · Danville, US
• Mark W. Cowan · Fremont, US
• N. Parker Willis · Atherton, US
• Axel F. Brisken · Fremont, US
• Debra S. Echt · Woodside, US

Key dates

• Filing date: Dec 19, 2008
• Grant date: May 31, 2011
• Expiry date: Jul 28, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/37288
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A wireless cardiac stimulation device comprising an implantable transmitter module housing a transmitter and a separately implantable battery module housing a battery for powering the transmitter and other device electronics via a subcutaneously routable electrical cable connecting the module is disclosed. The transmitter module contains a transmitter enclosure which comprises one or more ultrasound transducers. Having separate transmitter and battery modules allows implantation of the transmitter module closer to the target receiver implanted in tissue. A discrete battery module also enables easy replacement of the battery without disturbing the transmitter, which is highly desirable.