US 11,751,774 B2
Electronic auscultation and improved identification of auscultation audio samples
Jon Kevin Muse, Thompsons Station, TN (US); Gregory J. Boss, Saginaw, MI (US); Rama S. Ravindranathan, Edison, NJ (US); and Marilyn L. Gordon, Cherry Hill, NJ (US)
Assigned to UnitedHealth Group Incorporated, Minnetonka, MN (US)
Filed by UnitedHealth Group Incorporated, Minnetonka, MN (US)
Filed on Nov. 12, 2020, as Appl. No. 17/96,035.
Prior Publication US 2022/0142490 A1, May 12, 2022
Int. Cl. A61B 5/0255 (2006.01); G10L 25/66 (2013.01); A61B 5/0205 (2006.01); G06V 40/10 (2022.01)
CPC A61B 5/0255 (2013.01) [A61B 5/0205 (2013.01); G06V 40/10 (2022.01); G10L 25/66 (2013.01); G06V 40/15 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method comprising:
receiving, by one or more processors, an instance of data samples, the instance of data samples comprising (a) at least two audio samples and (b) at least one of respiratory data or cardiac cycle data, the at least two audio samples comprising auscultation sounds of an individual;
generating, by the one or more processors, at least one of (a) at least two lung sound samples based at least in part on the at least two audio samples or (b) at least two heart sound samples based at least in part on the at least two audio samples by removing at least one of heart sounds or lung sounds from the at least two audio samples based at least in part on the at least one of the respiratory data or the cardiac cycle data;
identifying, by the one or more processors, a primary sound sample and at least one secondary sound sample from at least one of (a) the at least two lung sound samples or (b) the at least two heart sound samples;
at least one of (a) generating a modified secondary sound sample by changing a phase of the at least one secondary sound sample or (b) accessing a baseline sample from memory and generating a modified baseline sample by changing a phase of the baseline sample;
generating an isolated sound sample by combining the primary sound sample with at least one of (a) the modified secondary sound sample or (b) the modified baseline sample; and
determining whether the isolated sound sample includes a suspect heart or lung sound.