Method and system to determine capture thresholds

US11331498B2 · kind B2 · utility

Assignee

• PACESETTER, INC. · US

Inventors

• Luke C. McSpadden · Los Angeles, US
• Fujian Qu · San Jose, US
• Cyrille Casset · Villenave-d'Ornon, FR
• Chunlan Jiang · Twin Lakes, US
• Kyungmoo Ryu · Palmdale, US
• Caroline D. Jordan · Los Altos Hills, US
• Yelena Nabutovsky · Sunnyvale, US
• Nima Badie · Berkeley, US

Key dates

• Filing date: Mar 7, 2019
• Grant date: May 17, 2022
• Expiry date: Apr 25, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N1/3712
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Computer implemented methods and systems are provided for automatically determining capture thresholds for an implantable medical device equipped for cardiac stimulus pacing using a multi-pole left ventricular (LV) lead. The methods and systems measures a base capture threshold for a base pacing vector utilizing stimulation pulses varied over at least a portion of an outer test range. The base pacing vector is defined by a first LV electrode provided on the LV lead and a second electrode located remote from an LV chamber. The methods and systems designate a secondary pacing vector that includes the first LV electrode and a neighbor LV electrode provided on the LV lead. The methods and systems further define an inner test range having secondary limits based on the base capture threshold, wherein at least one of the limits for the inner test range differs from a corresponding limit for the outer test range. The methods and systems measure a secondary capture threshold associated with the secondary pacing vector utilizing stimulation pulses varied over at least a portion of the inner test range.