Sealing retainer for extended wear hearing devices
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United States of America Patent
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N/A
Issued Date -
Dec 28, 2006
app pub date -
Jun 13, 2006
filing date -
Nov 25, 1998
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Embodiments of the invention provide seals for retaining hearing devices in the ear canal. An embodiment provides a seal for a hearing device comprising a curved shell having a wall and an opening at a shell apex portion. The shell wall defines a cavity for retention of a hearing device component with at least a portion of the shell comprising a resilient material having sound attenuating properties. The shell has a structure such that a force for removal of the seal from the canal is greater than a force for insertion of the seal into the canal. That structure can have an umbrella or cup shape. The structure can be configured to act as a mechanical toggle when acted upon by a laterally applied force to the shell. The structure can also be configured to exert a constant frictional force against the canal wall during insertion into the ear canal.
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