发明名称 Device for measuring the location, the attitude and/or a change of location or attitude of the lower jaw of a patient
摘要 The illustrated embodiment employs a field generator, preferably a magnetic field generator, field flux pick-ups arranged at an interval therefrom, as well as an electronic device for the three-dimensional comprehension and evaluation of electrical signals arising in a field flux or a change of field flux. For displaying random points (P2 . . . Pn) of the lower jaw (1), means are provided which identify the geometrical attitude of the points with respect to a fixed-body coordinate system (xo, yo, Zo) allocated to the lower jaw whose origin and rotational center is the measuring point (P1). Further, a coordinate converter is provided which converts the coordinates (xo, yo, zo) related to the lower jaw into the coordinates ( DELTA x2, DELTA y22 DELTA z2) of the stationary coordinate system (X, Y, Z). Further, summing amplifiers are provided which add the adjustment magnitudes ( DELTA x2, DELTA y2, DELTA z2) of the jaw-related coordinates to the coordinates (x1, y1, z1) of the measuring point (P1). The device is particularly employed in gnathography.
申请公布号 US4386405(A) 申请公布日期 1983.05.31
申请号 US19800203144 申请日期 1980.11.03
申请人 SIEMENS AKTIENGESELLSCHAFT 发明人 LEWIN, ARTHUR;NICKEL, BERND
分类号 A61B5/11;A61B5/107;A61C19/045;(IPC1-7):G06G7/60;A61B5/05 主分类号 A61B5/11
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