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Method and apparatus for sensing body gesture, posture and movement

  • US 6,984,208 B2
  • Filed: 08/01/2002
  • Issued: 01/10/2006
  • Est. Priority Date: 08/01/2002
  • Status: Expired due to Fees
First Claim
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1. A method for indirectly assessing the movement of a musculoskeletal body part of a person including:

  • applying an ultrasound transmitter and receiver to a musculoskeletal body part to be monitored, the body part comprising at least one of a head, a neck, a trunk, a shoulder, a chest, a limb, a wrist, a hand, a knee, a foot, a toe, a finger, and an artificial body part, using the transmitter to transmit an ultrasound signal into soft tissue of the body part and receiving a reflected and/or scattered ultrasound signal from the soft tissue at the receiver, manipulating the reflected and/or scattered ultrasound signal to obtain parameter data, the parameter data comprising at least one of amplitude, phase, flight-time, frequency spectrum and waveform pattern of the signal, and comparing the parameter data to reference information to obtain a gesture or posture for the body part and analyzing changes in the gesture or posture to obtain movement information for the body part.

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