Ultrasound sonication equipment

A - Human Necessities – 61 – H

Patent

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Details

A61H 23/02 (2006.01) A61F 7/00 (2006.01) A61N 7/00 (2006.01)

Patent

CA 2319583

This invention discloses an equipment for lipolysis of fat of a living body by ultrasound sonication. An effective ultrasound is characterized in low frequency 15kHz - 140kHz region, by an intensity when in a range of 15kHz - 50kHz, which is greater than 10mW/cm2 and below a hemolysis limit, and an intensity when in a range of 50kHz - 140kHz, which is greater than 4mW/cm2 and below the hemolysis limit or the safety level based on the Mechanical Index as defined by the World Federation for Ultrasound in Medicine and Biology where the mechanical index is given by the following equation MI=Pf1/2, wherein P is the maximum negative peak pressure in units of Mpa, and f is frequency in units of MHz. The invention is further characterized in a high frequency 180MHz - 1.3MHz region, by an intensity when in a range of 180kHz - 700kHz, which is greater than 10mW/cm2 and below the safety level defined by the Mechanical Index, and the intensity when in a range of 700kHz - 1.3MHz, which is greater than 800mW/cm2 and below the safety level defined by the Mechanical Index.

On expose un corps vivant à des ondes ultrasoniques pour décomposer les graisses. Dans une gamme de basses fréquences comprises entre 15 et 50 kHz, la densité surfacique de la puissance acoustique du rayonnement est supérieure à 10 mW/cm<2> et ne provoque pas d'hémolyse dans le corps vivant; dans une gamme de basses fréquences comprises entre 50 et 140 kHz, la densité surfacique de la puissance acoustique du rayonnement est supérieure à 4 mW/cm<2> et ne provoque pas d'hémolyse dans le corps vivant, elle satisfait à la valeur de la norme de sécurité basée sur l'indice mécanique MI. Dans une gamme de fréquences élevées comprises entre 180 et 700 kHz, la densité surfacique de la puissance acoustique du rayonnement est supérieure à 10 mW/cm<2>, elle satisfait à la valeur de la norme de sécurité basée sur le MI; dans une gamme de fréquences élevées comprises entre 700 kHz et 1,3 MHz, la densité surfacique de la puissance acoustique du rayonnement est supérieure à 800 mW/cm<2>, elle satisfait à la valeur de la norme de sécurité basée sur le MI.

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