Method and device for recording the form of an ear section

Abstract

The device has receiving device (1) for detecting sizes of two lower sections relative to predetermined optical characteristics of a section to be detected, where the size represents a position. An evaluation device obtains form information of the section to be detected by combination of forms of the lower sections based on detected positions or the sizes representing the position. The receiving device comprises a laser measuring arrangement such as glass fiber (2) and optical lens systems (11, 12). Cone-surface shaped measuring beam (13) is produced by the laser measuring arrangement. The receiving device contains light sources such as laser or LED. An independent claim is also included for a method for detecting form of a section of a human ear, i.e. ear canal.

Description

technical field

[0001] The invention relates to a device for detecting the structure of a part of the human ear, in particular the ear canal. Furthermore, the invention relates to a method for detecting ear segments. Background technique

[0002] For the production of individual housings for in-the-ear hearing aids or for the production of individual otologic plastics, it is necessary to precisely measure and determine the three-dimensional dimensions of the individual ear canals.

[0003] Until now, the structure of the ear canal was usually detected by injecting silicone material into the ear canal. The material hardens after a few minutes. Next, the material is removed from the ear canal and scanned to obtain three-dimensional data. However, this procedure is uncomfortable for the patient and generally laborious.

[0004] A method for generating structured light is disclosed in the patent document PCT / EP 2008 / 050929. Contents of the invention

[0005] The technical...

Images