US 10,376,184 B2
Apparatus and method for patient activity estimation and classification
Rodolphe Katra, Blaine, MN (US); and Niranjan Chakravarthy, Eden Prairie, MN (US)
Assigned to Greatbatch Ltd., Clarence, NY (US)
Filed by Greatbatch Ltd., Clarence, NY (US)
Filed on Mar. 7, 2014, as Appl. No. 14/200,550.
Claims priority of provisional application 61/775,081, filed on Mar. 8, 2013.
Prior Publication US 2014/0257115 A1, Sep. 11, 2014
Int. Cl. A61B 5/11 (2006.01); A61B 5/04 (2006.01); A61B 5/0402 (2006.01); A61B 5/00 (2006.01); A61B 5/0428 (2006.01); A61B 5/0452 (2006.01); A61N 1/362 (2006.01)
CPC A61B 5/1118 (2013.01) [A61B 5/04 (2013.01); A61B 5/0402 (2013.01); A61B 5/0428 (2013.01); A61B 5/0452 (2013.01); A61B 5/1123 (2013.01); A61B 5/7207 (2013.01); A61B 5/4809 (2013.01); A61N 1/362 (2013.01)] 19 Claims
OG exemplary drawing
 
14. A medical device comprising:
a housing;
an electrode arrangement coupled to the housing and configured to sense an electrical physiologic signal from a patient;
detection circuitry coupled to the electrode arrangement and configured to obtain a cardiac signal component and a non-cardiac signal component from the electrical physiologic signal;
an output device; and
a processor coupled to the detection circuitry and the output device, the processor configured to:
detect patient activity using the non-cardiac signal component and to detect patient activity using the cardiac signal component;
determine whether the patient activity detected using the cardiac signal component corresponds to voluntary classified activity or involuntary classified activity of the patient and whether the patient activity detected using the non-cardiac signal component corresponds to voluntary classified activity or involuntary classified activity of the patient;
detect an adverse patient condition in response to detecting that one of the cardiac and non-cardiac signal components indicates patient voluntary classified activity and the other of the cardiac and non-cardiac signal components indicates patient involuntary classified activity; and
cooperate with the output device to generate an output comprising the cardiac signal component, the non-cardiac signal component, and an indicator that indicates dyssynchrony between the cardiac and non-cardiac signal components indicative of the detected adverse patient condition.