×

Dementia differentiation device

  • US 9,462,972 B2
  • Filed: 07/17/2013
  • Issued: 10/11/2016
  • Est. Priority Date: 07/18/2012
  • Status: Active Grant
First Claim
Patent Images

1. A dementia differentiation device, comprising a leg movement acquisition unit, an apnea detection unit, a movement analysis unit a coefficient calculation unit and an output unit, whereinthe leg movement acquisition unit continuously acquires leg movements of a sleeping subject,the apnea detection unit detects whether or not the subject is in a state of apnea, andthe movement analysis unit determines whether or not the leg movements satisfy previously determined conditions,the previously determined conditions including at least the following conditions (a) to (d):

  • (a) the duration of leg movement is within a previously determined range;

    (b) the intensity of leg movement is a previously determined value or greater;

    (c) leg movements satisfying conditions (a) and (b) continue a previously determined number of times within a previously determined duration; and

    (d) the leg movement is not movement from immediately before until immediately after a state of apnea that has been detected by the apnea detection unit, and whereinthe coefficient calculation unit calculates a coefficient based on the number of times of leg movement that satisfied the previously determined conditions, andthe output unit outputs either the coefficient or a determination result based on the coefficient.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×