Admittance measurement for tuning bi-ventricular pacemakers

US10076669B2 · kind B2 · utility

Assignees

• Admittance Technologies, Inc. · US
• The Board of Regents of the University of Texas System · US

Inventors

• Marc D. Feldman · Austin, US
• John Porterfield · Austin, US
• Erik Larson · Austin, US
• Jonathan W. Valvano · Austin, US
• John A. Pearce · Austin, US

Key dates

• Filing date: Dec 2, 2011
• Grant date: Sep 18, 2018
• Expiry date: Jul 3, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3682
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An apparatus for treating a heart of a patient includes a first lead and at least a second lead for pacing the heart adapted to be in electrical communication with the heart. The apparatus includes a microcontroller in communication with the first and second leads which triggers the first lead at either different times or the same time from when the microcontroller triggers the second lead. Alternatively, the apparatus includes a microcontroller in communication with the first and second leads that determines heart volume, including stroke volume, end-systolic volume, and calculated values including ejection fraction, from admittance from signals from the first and second leads and uses the admittance as feedback to control heart volume ejected, as measured by stroke volume, calculated values such as ejection fraction, and control end-systolic volume, with respect to the first and second leads. A method for treating the heart of a patient.