US 12,440,109 B2
Direct current (DC) voltage respiration detector
Joseph L. Sullivan, Kirkland, WA (US)
Assigned to WEST AFFUM HOLDINGS DAC, Dublin (IE)
Filed by WEST AFFUM HOLDINGS DAC, Dublin (IE)
Filed on Oct. 1, 2020, as Appl. No. 17/061,551.
Claims priority of provisional application 62/911,024, filed on Oct. 4, 2019.
Prior Publication US 2021/0100457 A1, Apr. 8, 2021
Int. Cl. A61B 5/0205 (2006.01); A61B 5/282 (2021.01); A61B 5/304 (2021.01); A61B 5/316 (2021.01); A61B 5/352 (2021.01); A61N 1/39 (2006.01); G01R 27/14 (2006.01); G16H 20/30 (2018.01); A61B 5/085 (2006.01)
CPC A61B 5/0205 (2013.01) [A61B 5/282 (2021.01); A61B 5/304 (2021.01); A61B 5/316 (2021.01); A61B 5/352 (2021.01); A61N 1/3904 (2017.08); A61N 1/3925 (2013.01); A61N 1/3987 (2013.01); G01R 27/14 (2013.01); G16H 20/30 (2018.01); A61B 5/086 (2025.01)] 19 Claims
OG exemplary drawing
 
1. A method for providing therapy to a user of a wearable cardioverter defibrillator (WCD) based on determining a respiration rate of the user of the WCD, the method comprising:
injecting a direct current (DC) signal into two or more electrodes of the WCD;
receiving an indication of a change of the DC signal at the two or more electrodes, the received indication being included in a plurality of electrical signals that are received from the two or more electrodes;
separating the received indication of the change of the DC signal from the received plurality of electrical signals;
determining the respiration rate of the user of the WCD based on the separated received indication;
detecting whether the determined respiration rate is within a predetermined rate;
determining whether a heart rate of the user falls within a ventricular tachycardia (VT) zone; and
providing the therapy in form of an electric shock to the user of the WCD, via a plurality of therapy electrodes, based on at least detecting that the heart rate falls within the VT zone and further based on detecting that the determined respiration rate falls outside the predetermined rate.