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Method and device for the non-invasive assessment of bones

  • US 7,601,120 B2
  • Filed: 11/28/2002
  • Issued: 10/13/2009
  • Est. Priority Date: 11/30/2001
  • Status: Active Grant
First Claim
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1. A method for non-invasive assessment of bones, the method comprising the steps of:

  • providing at least one transducer that functions as a transmitter and at least one transducer that functions as a receiver;

    directing in vivo an ultrasound signal emitted by the transmitter onto a bone, the ultrasound signal propagating within the bone and being emitted from the bone,detecting in vivo the ultrasound signal emitted from the bone with the receiver at two or more transmitter-to-receiver distances along the bone and recording the detected ultrasound signal,calculating at least one bone property from the recorded signals using a method includingdetecting one or more modes of Lamb waves, said one or more detected wave modes having a relationship with said bone property or properties,measuring the velocity of said one or more detected wave modes, andcalculating the bone property or properties from the measured velocity or velocities.

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