| CPC A61B 5/6807 (2013.01) [A43B 3/34 (2022.01); A61B 5/6833 (2013.01); A61B 5/6835 (2013.01)] | 16 Claims | 

| 
               1. An apparatus, comprising: 
            a sensor shoe that includes: 
                a base having a first end opposite a second end; 
                  one or more grooves formed at the base; 
                  a raised portion at the first end having an opening facing the second end; 
                  a first sidewall extending laterally from the base; 
                  a second sidewall extending laterally from the base and opposite the first sidewall, wherein a distance between the first sidewall and the second sidewall is tapered such that the distance is narrower at a first point closer to the first end compared with a second point closer to the second end; and 
                  an electrical connector disposed through the opening and configured to electrically couple to a removable biometric sensor device; and 
                a wearable patch adhered to the sensor shoe and including: 
              a flexible electrically insulating material; 
                  a first electrode and a second electrode coupled to the flexible electrically insulating material and configured to sense a physiological signal used to generate electrocardiogram data, wherein the first electrode is positioned closer to the sensor shoe than the second electrode; and 
                  a first conductive pathway positioned between the first electrode and the sensor shoe and electrically coupled to the electrical connector. 
                 |