Method and apparatus for producing an ear impression

Details Method and apparatus for producing an ear impression Method and apparatus for producing an ear impression

1987-05-13

1989-05-30

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Coating or impregnating workpiece before molding or shaping...

264161, 264222, 264227, 264277, 425275, 249 55, 249 91, 249175, 249184, B29C 3910

Patent

active

048349275

ABSTRACT:
On the basis of a hollow die including over-shell and a cap drawn onto a proximal connector of the die, an ear impression is produced directly in the auditory canal that is filled with ear impression material. Displaced ear impression material thereby flows through a channel in the cap into the hollow interior of the die. A negative is produced from the ear impression together with a screwed-on fixing star, this negative containing impressions of the points of the fixing star. After injection of otoplastic material and repositioning of a fixing star with a die, over-shell and cap into the fixing depressions, a finished otoplastic shell can then be produced from the negative.

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Hearing Instrument, vol. 35, No. 1, Jan., 1984, "A tool for the optimization of hearing aid fittings", pp. 12-16.

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