Abstract
An expandable device ( 1100 ) can be configured to occlude an ear canal to isolate an ear canal volume from an ambient environment. The expandable device includes a support structure ( 1102 ). A membrane having a proximal end and a distal end is attached at each end around the support structure ( 1102 ) forming an expandable element ( 1104 ). The expandable element ( 1104 ) has an expanded state and an un-expanded state. The expandable element is adjacent to the support structure ( 1102 ) in the un-expanded state. The expandable element ( 1104 ) in the un-expanded state minimizes an insert profile of the expandable device ( 1102 ).
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