Patent ID: 7680634
Filing Date: 2010-03-16
Classification: H04R,Y10T

Abstract:
1. A method for trimming a hearing aid shell, comprising: producing a 3D data definition of an original hearing aid shell design; establishing a line cut plane that is not parallel to a bottom cut plane, thereby defining a line cut plane contour by an intersection of the line cut plane and the hearing aid shell; creating a projected contour on the bottom cut plane that corresponds in shape to a portion of the line cut plane contour; defining a line cut surface between the portion of the line cut plane contour and the projected contour; identifying a first portion of the hearing aid shell on one side of the line cut surface as a keep portion of the hearing aid shell, and second portion of the hearing aid shell on the other side of the line cut surface as a removal portion of the hearing aid shell, a new hearing aid shell design being defined by the keep portion of the hearing aid shell; eliminating parts of the new hearing aid shell design that extend beyond boundaries defined by the original hearing aid shell design; and producing a hearing aid shell corresponding to the new hearing aid shell design.