Medical devices, namely, patient monitors and patient sensors for monitoring and measuring blood properties and respiratory events; Patient medical monitors for monitoring heart conditions, blood properties, and respiratory events; Patient medical monitors for monitoring risk for heart attacks; Patient medical monitors for monitoring cardiovascular disease; Patient medical monitors for monitoring cardiovascular conditions; Patient medical monitors for monitoring cardiovascular health; Stethoscopes; Non-invasive medical devices for use in treating cardiovascular disease; Patient medical monitors for monitoring heart sounds; Medical devices for monitoring blood properties and respiratory events; Medical devices for use in treating or diagnosing coronary artery disease (CAD); Medical devices for use in treating or diagnosing cardiovascular disease; Medical devices for use in treating or diagnosing heart disease; Medical devices for use in treating or diagnosing abnormalities in blood flow and heart movement; Medical diagnostic apparatus for detecting abnormalities in blood flow and heart movement; Medical diagnostic apparatus for detecting coronary artery disease (CAD); Medical diagnostic apparatus for detecting heart disease; Medical diagnostic apparatus for detecting cardiovascular disease; Medical diagnostic apparatus for detecting risk for heart attacks