Medtronic, Inc.

University of Minnesota

Allina Health System

Juan Du

Subham Ghosh

Jeffrey M Gillberg

Saul E Greenhut

Michael T Hemming

Alan J Bank

Ryan M Gage

Kevin V Burns

Antonia E Curtin

A medical device and medical device system for controlling delivery of therapeutic stimulation pulses that includes a sensing device to sense a cardiac signal and emit a trigger signal in response to the sensed cardiac signal, a therapy delivery device to receive the trigger signal and deliver therapy to the patient in response to the emitted trigger signal, and a processor positioned within the sensing device, the processor configured to determine whether the sensed cardiac signal exceeds a possible P-wave threshold, compare a portion of the sensed cardiac signal to a P-wave template having a sensing window having a length less than a width of the P-wave, confirm an occurrence of a P-wave signal in response to the comparing, emit the trigger signal in response to the occurrence of a P-wave signal being confirmed, and inhibit delivery of the emitting signal in response to the occurrence of a P-wave signal not being confirmed.

Confirming sensed atrial events for pacing during resynchronization therapy in a cardiac medical device and medical device system

A system and associated method for determining whether a signal is ambiguous, wherein the system includes a plurality of electrodes configured to be located proximate tissue of a patient. A display apparatus thereof includes a graphical user interface configured to present information to a user. A computing apparatus thereof is configured to determine maximums for beats of signals from the electrodes.

Identifying ambiguous cardiac signals for electrophysiologic mapping

The exemplary systems, methods, and interfaces may obtain and analyze electrode signals from a plurality of external electrodes. The electrode signals may include at least an anterior set of electrode signals and a posterior set of electrode signals. The anterior and posterior sets of electrode signals may be used to generate, or provide, various metrics of cardiac electrical heterogeneity and various graphical depictions that may be useful in assessing a patient's cardiac functionality.

Systems and methods for anterior and posterior electrode signal analysis

A system and associated method is disclosed for determining whether a signal is ambiguous. The system comprises a plurality of electrodes configured to be located proximate tissue of a patient. A display apparatus comprises a graphical user interface configured to present information to a user. A computing apparatus is coupled to the electrode apparatus. The computing apparatus is configured to calculate a first derivative of a signal acquired from the electrodes, determine a first minimum from the first derivative, determine a second minimum from the second derivative and a second index within a window, calculate a ratio of the first and second derivatives, calculate a difference between a first and second index. In response to determining the ratio and the difference between the first and second index, the display apparatus displays whether the signal is ambiguous.

A system and associated method is disclosed for determining whether signal is valid. The system comprises an electrode apparatus comprising a plurality of electrodes configured to be located proximate tissue of a patient. A display apparatus comprising a graphical user interface, wherein the graphical user interface is configured to present information to a user. A computing apparatus coupled to the electrode apparatus and display apparatus, wherein the computing apparatus is configured to determine whether a signal acquired from a channel associated with an electrode from the plurality of electrodes is valid and sufficiently strong by i) calculating a first derivative of the signal; ii) determining a minimum and maximum derivative from the first derivative; iii) determining whether signs of the minimum and maximum derivative are different; and in response to determining whether the signs of the minimum and maximum derivative are different, displaying on a display apparatus whether the signal is valid.

Growing community of inventors

Minneapolis, MN, United States of America

Juan Du