US 12,109,007 B2
Sensing for heart failure management
Alfonso Aranda Hernandez, Shoreview, MN (US); Richard Cornelussen, Maastricht (NL); Mirko de Melis, Maastricht (NL); Richard Sutton, Monte Carlo (MC); and Berthold Stegemann, Kassel (DE)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Oct. 23, 2023, as Appl. No. 18/492,038.
Application 18/492,038 is a continuation of application No. 16/797,390, filed on Feb. 21, 2020, granted, now 11,793,411.
Claims priority of provisional application 62/842,714, filed on May 3, 2019.
Prior Publication US 2024/0049968 A1, Feb. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/0205 (2006.01); A61B 5/00 (2006.01); A61B 5/024 (2006.01); A61B 5/07 (2006.01); A61B 5/08 (2006.01); A61B 5/11 (2006.01); A61B 5/282 (2021.01); A61B 5/349 (2021.01); A61N 1/375 (2006.01)
CPC A61B 5/0205 (2013.01) [A61B 5/076 (2013.01); A61B 5/686 (2013.01); A61B 5/6861 (2013.01); A61B 5/7282 (2013.01); A61B 5/02405 (2013.01); A61B 5/0816 (2013.01); A61B 5/1116 (2013.01); A61B 5/1118 (2013.01); A61B 5/282 (2021.01); A61N 1/3756 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A system for determining a heart failure status of a patient using a medical device, the system comprising:
the medical device, wherein the medical device comprises one or more sensors; and
processing circuitry configured to:
determine a first value of at least one heart beat variability metric of the patient while an activity state of the patient satisfies at least one inactivity criterion based on at least one signal received from the one or more sensors;
determine, in response to and within a predetermined period of time after the activity state of the patient no longer satisfies the at least one inactivity criterion, a second value of the at least one heart beat variability metric while the activity state of the patient no longer satisfies the at least one inactivity criterion based on at least one signal received from the one or more sensors, the predetermined period of time being less than thirty minutes; and
generate the heart failure status of the patient, based, at least in part, on the first value of the at least one heart beat variability metric and the second value of the at least one heart beat variability metric, to be output at an output device for medical intervention that is based on the heart failure status.