Patent ID: 9101274
Filing Date: 2015-08-11
Classification: A61B,B06B

Abstract:
1. A second pod for sensing acoustic signal comprising: a housing having an interior chamber and a circular opening at one end, and a swivel connector at an opposing end of the housing configured for attachment to a support structure for adjustably moving the sensor pod in multiple directions; a piezoelectric element in the form of a circular disk having a first side and an opposing second side contained in the interior chamber of the housing and aligned with the circular opening; an acoustic coupling pad having a flat surface portion on a first side contacting the first side of the piezoelectric element and a body contacting portion on a second side extending through the circular opening in the housing, and portion of the body contacting portion extending outward from the opening in the housing; a first O-ring positioned on and in contact with the first side of the piezoelectric element; and, a second O-ring positioned on and in contact with the second side of the piezoelectric element and wherein the second O-ring includes a circumferential groove positioned so that an edge of the piezoelectric elements sits in the groove.