Methods of skin rejuvenation using high intensity focused ultrasound to form an ablated tissue area containing a plurality of lesions
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United States of America Patent
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Jul 22, 2003
Issued Date -
N/A
app pub date -
Jul 31, 2000
filing date -
Jan 19, 2000
priority date (Note) -
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Abstract
A method of skin rejuvenation by thermal ablation using high intensity focused ultrasound energy includes the steps of positioning an ultrasound emitting member adjacent an external surface of the skin, emitting ultrasound energy from the ultrasound emitting member into the skin, focusing the ultrasound energy in the skin, ablating the skin with the focused ultrasound energy to form an ablated tissue area below the external surface of the skin containing unablated tissue of the skin and a plurality of lesions at which the tissue of the skin is ablated, and removing the ultrasound emitting member from adjacent the external surface of the skin. The lesions cause collagen production by the skin to be stimulated. The lesions can begin and end at predetermined depths beneath the external surface of the skin so that the epidermis and the deep layer of the dermis are not damaged.
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