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Device for displaying masticatory muscle activities

  • US 4,355,645 A
  • Filed: 10/18/1979
  • Issued: 10/26/1982
  • Est. Priority Date: 10/18/1978
  • Status: Expired due to Term
First Claim
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1. A device for displaying masticatory muscle activities for use in correcting unbalanced and abnormal occlusion patterns characterized in that the device comprises a plurality of sets of electrodes (8) and (9) each set consisting of a pair of right and left electrodes, said electrodes being attachable to the surfaces of the masseter and temporal muscles on both sides of a face of a person to be examined so as to detect electromyographic potentials during mastication, a means (I), (II), (III), (IV) and (V) for converting the electromyographic potentials detected by said electrodes (8) and (9) respectively into electrical signals for display, a display means (C), and a means (B) for selectively energizing said display means (C) in response to said signals, said display means (C) comprising display lines (L1), (L2), (L3) and (L4) of light-emitting members (12) and (13) which are independent over one another for each of said electrodes (8) and (9) whereby the masticatory muscle activity can be displayed during a plurality of consecutive occlusions.

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