Sonotrode
AssigneeAlma Lasers Ltd.
InventorsAlexander Britva, Alexander Dverin, Yevgeny Pens, Ziv Karni
Life of this patent
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Abstract
Disclosed are a sonotrode and its use for transdermal delivery of therapeutic or cosmetic compounds. The sonotrode 10 comprises a tubular neck 14 attached at a proximal end to a solid head 12 and ending at a distal end in a flared foot 16. When coupled to an ultrasonic transducer and applied to skin of a human or animal, the sonotrode enhances the delivery of compounds into the skin.
Claims15
A sonotrode for transmitting acoustic energy from an ultrasound generator to a substrate, for use in transdermal delivery of therapeutic or cosmetic compounds, the sonotrode comprising a proximal portion to be coupled in use to the ultrasound generator and a neck portion coupled at one end directly to the proximal portion and terminating at a distal end in a flared foot portion,
- acoustic energy from the ultrasound generator being applied in use to the substrate by transmission of ultrasound through the proximal portion, the neck and the foot portion,
- wherein a total effective length of the sonotrode is substantially equal to one third of a wavelength of the acoustic energy applied to the sonotrode from the ultrasound generator,
- whereby a maximum amplitude of an acoustic energy wave is focused below a surface of the skin,
- the neck portion has a smaller cross sectional area than both the foot portion and the proximal portion, and
- the distal end of the sonotrode is formed with a blind bore that opens into the flared foot portion and extends straight into the neck portion where the bore terminates.
Dependencies are inferred from the claim text.