Patent ID: 8721573

Claim:
A vibratory attachment interface operable to transmit oscillations generated by an oscillation source to an external human chest wall surface, said attachment interface comprising: a support member comprising a first and a second contact node, wherein said first and second contact nodes are sized and spaced to overly and operable to simultaneously seat upon an adult anatomic left third intercostal space and an adult anatomic left fourth intercostal space generally proximate the left sternal margin, and an oscillation source operatively attached to said attachment interface, said oscillation source administrable to generate oscillations at a frequency between 1-1000 Hz, and a stroke length of 1.0 mm-10 mm which are thereby transmitted to said attachment interface, wherein at least one of said first and second contact nodes is semi-rigidly retained with respect to said support member such that upon application of an engagement force to said first and second contact nodes against said left third and left fourth intercostal spaces, at least one of said first and second contact nodes automatically alters its position relative to the other contact node in response to said engagement force such as to enable substantially flush, opposed seating of said first and second contact nodes within said left third and left fourth intercostal spaces.