Patent ID: 7720245
Filing Date: 2010-05-18
Classification: H04R

Abstract:
1. A hearing aid, comprising: a microphone sampling position and amplifier located on the external of a user; and a receiver, comprising a speaker housed within a casing, positionable in an acoustically open-ear configuration and suspended within the ear canal wherein sound from the microphone sampling position is amplified in accordance with hearing loss programming and passed via electrical connection from a portion of the external ear and through the ear canal opening of that ear to the speaker that is positioned within the ear canal in an acoustically open ear configuration, which configuration lacks additional substantially obstructive masses in the open canal adjacent said casing, and wherein such receiver has a lateral cross sectional area of about 0.0415 inches squared or below and is dimensioned so as to generate about eight decibels or below of insertion loss and about eight decibels or below of occlusion effect over human audible frequencies.