Complex frequency focused ultrasound non-invasive fat dissolving method and device

Abstract

The invention relates to a complex frequency focused ultrasound non-invasive fat dissolving method and device. The invention is characterized in that low frequency ultrasound and medium high frequency high-power focused ultrasound are comprehensively applied to act on subcutaneous fat simultaneously, a mode of dissolving the subcutaneous fat by complex frequency is utilized, and long-time low frequency low-power ultrasound stably performs ultrasound cavitation in subcutaneous fat cells, thus interior tension accumulation is close to a critical threshold; because the medium high frequency high-power focused ultrasound waves which are instantly transmitted can focus the ultrasound waves within an accurate focusing range, the ultrasound waves can selectively act on the subcutaneous fat cells without damaging the surrounding tissues; and the medium high frequency high-power focused ultrasound waves which are transmitted instantly can induce instant unstable ultrasound wave cavitation under the condition that the stable cavities in the subcutaneous fat cells are close to the critical threshold, and explosion is induced in the subcutaneous fat cells to promote the subcutaneous fat cells to dissolve.

Description

Technical field [0001] The invention relates to the field of medical technology, in particular to a method and a device for non-invasively dissolving subcutaneous fat by compound frequency focused ultrasound. Background technique [0002] Beauty is the nature of human beings. With age, the body shape will inevitably change. More and more people hope to change the body shape and the aesthetics of the body surface through partial body weight loss and shaping technology. According to a study conducted by the American Academy of Medical Cosmetology According to a survey, 45.8% of adult women aged 18 to 60 are interested in changing their personal appearance through body shaping techniques and procedures. [0003] In the past, the only way to remove excess body fat and improve body curves was to extract local subcutaneous fat through liposuction. Although the effect of liposuction surgery is obvious, but because it is a surgical operation, there are inevitably many inherent defe...

AI Technical Summary

Problems solved by technology

Although low-frequency ultrasound has the above-mentioned advantages, in specific applications, because its wavelength is too large (take 25KHz ultrasound as an example, the wavelength is 6cm), and according to acoustic theory, the focal spot area cannot be smaller than the wavelength by applying modern acoustic focusing technology. (That is, the focal spot of 25KHz focused ultrasound cannot be less than 6cm), therefore, the purpose of focused ultrasound therapy cannot be achieved; while high-frequency ultrasound can use focusing technology to achieve the purpose of focusing to several millimeters, but due to its significant heating effect, and May damage surrounding tissue

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