Pacing output K-factor improvements

US10780261B2 · kind B2 · utility

Inventors

• Anthony W. Schrock · Rochester, US
• James W. Busacker · Buffalo, US
• Kevin E. Baumgart · Maple Grove, US
• Michael L. Hudziak · Stillwater, US
• James D. Reinke · Maple Grove, US
• John D. Wahlstrand · Shoreview, US

Key dates

• Filing date: Feb 21, 2018
• Grant date: Sep 22, 2020
• Expiry date: Jul 27, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G11C5/145
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In an example, an implantable medical device (IMD) includes a hold capacitor configured to deliver an electrical therapy pulse, and charge pump circuitry configured to transfer energy from the battery to the hold capacitor. In this example, the charge pump circuitry comprises a plurality of capacitors, and switching circuitry configured to put the charge pump circuitry into a K-factor mode selected from a group of K-factor modes by opening and closing a combination of switches connected to the plurality of capacitors.