Dynamic pressure vent for canal hearing devices

摘要

A seal assembly for canal hearing devices including a dynamic pressure vent formed and defined by diaphragmatic flaps configured to open in response to a pressure gradient across the diaphragm. The seal assembly comprises a compliant seal element configured to be positioned generally concentrically around the canal hearing device for providing comfortable contact with the ear canal and for acoustically sealing the residual volume of the ear canal. The seal assembly is preferably made of an elastomeric material. The dynamic pressure vent is substantially closed in the normal position to minimize feedback, while momentarily opening inside the ear canal during insertion or removal of the canal hearing device into or from the ear canal.

主权项

1. A dynamic pressure vent of a compliant acoustical sealing element for a canal hearing device, the dynamic pressure vent comprising:
a flexible membrane provided along a medial surface of the compliant acoustical sealing element; and one or more flaps formed by one or more slits within the flexible membrane, wherein the one or more flaps are configured to temporarily deform and open in response to an air pressure gradient across the flexible membrane while inside an ear canal, wherein the one or more flaps are formed in a region between a sound port and a contact portion of the compliant acoustic sealing element.