Simultaneous negative cast and shell fabrication for custom hearing aids
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United States of America Patent
Stats
-
Jan 25, 2011
Grant Date -
Feb 4, 2010
app pub date -
Jul 31, 2008
filing date -
Jul 31, 2008
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a method to create a hearing aid housing shell and a negative cast for a hearing aid to be fitted to a patient's ear canal, a 3D jet printer apparatus is provided able to build a 3D part by injecting both the soft material and a hard material with the soft material serving as a support for the hard material. The 3D file is input to the 3D jet printer apparatus to build the hearing aid shell with the hard material and the combined negative cast with the soft material. The negative cast is used to check a quality of the hearing aid shell and to add external features to the shell by fitting the shell into the negative cast.
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Family
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