Method of producing an ear canal impression

Details Method of producing an ear canal impression Method of producing an ear canal impression

1996-11-08

1998-09-08

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264222, 264DIG30, 600 25, B29C 3340, H04R 2502, G01B 504

Patent

active

058041095

ABSTRACT:
A method of fabricating an ear canal impression which includes the steps of (a) placing a covering on the tympanic membrane of a hearing-impaired person, (b) marking the junction between the bony and cartilaginous portions of the auditory canal, (c) introducing an ear canal impression material into the auditory canal, (d) and allowing the ear canal impression material to harden to form the ear canal impression whereby the ear canal impression includes an indentation on its surface corresponding to said marking is provided. The ear canal impression is then employed to fabricate an ear canal mold for a completely-in-canal hearing aid device. In this fashion, the hearing aid when placed in the auditory ear canal is assured to fit and rest snugly on the bony canal. This prevents the device from shifting away from the tympanic membrane and, therefore, reduces the opportunity for positive feedback and discomfort for the individual.

REFERENCES:
patent: 3440314 (1969-04-01), Frisch
patent: 4098277 (1978-07-01), Mendell
patent: 5201007 (1993-04-01), Ward et al.
patent: 5440082 (1995-08-01), Claes
patent: 5455994 (1995-10-01), Termeer et al.
patent: 5531954 (1996-07-01), Heide et al.

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