Bone velocity determination

Details Bone velocity determination Bone velocity determination

A - Human Necessities

61

B

A61B 8/00 (2006.01) A61B 8/08 (2006.01)

Patent

CA 2348467

A method of determining an acoustic velocity in a bone, comprising: transmitting, from a location adjacent a first in-vivo bone, an acoustic wave having a wavelength about the same or smaller than a cross section of the bone, which cross section is perpendicular to a main travel direction of said acoustic wave in said bone; receiving said acoustic wave at a location adjacent a second in-vivo bone; and determining an acoustic velocity of at least a portion of at least one of the first and second bones, from a travel time of said wave through said first and second bones and at least one joint between said bones.

L'invention concerne un procédé pour déterminer la vitesse acoustique dans un os. Il consiste à émettre, depuis un endroit adjacent à un premier os in vivo, une onde acoustique possédant une première longueur d'onde qui est identique ou inférieure à la section de l'os, ladite section étant perpendiculaire à la direction principale de propagation de ladite onde acoustique dans l'os; à recevoir cette onde acoustique dans un endroit adjacent à un deuxième os in vivo; et à déterminer la vitesse acoustique dans au moins une partie d'au moins les premier et deuxième os sura base du temps de propagation de ladite onde à travers lesdits premier et deuxième os et à travers au moins une articulation reliant ces deux os.

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