Apparatus for treatment of dermatological conditions
First Claim
1. A method for the application of ultrasound to the skin for the treatment of a dermatologic skin condition, comprising:
- applying to the skin a gel pad, gel cartridge or free flowing gel comprising a composition that includes one or more hyaluronan; and
applying ultrasound directly or indirectly to an area of the skin where the gel pad, gel cartridge or free flowing gel has been applied, or as a pre-treatment to an area of the skin to which the gel pad, gel cartridge or free flowing gel is to be applied, wherein the ultrasound is applied using a plurality of dual frequency transducers each of which comprises a low frequency transducer element that delivers low frequency ultrasound in the range of 20 kHz to 500 kHz and a high frequency transducer element that is different from the low frequency transducer element and delivers high frequency ultrasound in the range of 0.5 MHz to 3.5 MHz, wherein the spatial average power density of the low frequency ultrasound energy is from 20 to 500 mW/cm2, wherein the dual frequency transducers are driven in accordance with a treatment protocol for a dermatologic skin condition so as to deliver a desired sequence of low and high frequency ultrasound to the skin under treatment whereby an ultrasound field moves across the ultrasound transducer elements in a preset pattern and at a preset speed to treat the dermatologic skin condition.
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Accused Products
Abstract
This invention relates to ultrasound delivery apparatus comprising flexible arrays of transducers and to methods and topical compositions for the treatment of skin, in particular for the treatment of cosmetic skin conditions and to improve the appearance of sun damaged and/or aged skin; the invention further relates to the use of such apparatus and compositions in methods of treating skin, which methods may incorporate the application of ultrasound. The composition may comprise one or more anti-gfycation agent, one or more anti-oxidant, a dermatologically acceptable excipient and optionally one or more substance capable of inducing expression of a molecular chaperone.
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Citations
28 Claims
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1. A method for the application of ultrasound to the skin for the treatment of a dermatologic skin condition, comprising:
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applying to the skin a gel pad, gel cartridge or free flowing gel comprising a composition that includes one or more hyaluronan; and applying ultrasound directly or indirectly to an area of the skin where the gel pad, gel cartridge or free flowing gel has been applied, or as a pre-treatment to an area of the skin to which the gel pad, gel cartridge or free flowing gel is to be applied, wherein the ultrasound is applied using a plurality of dual frequency transducers each of which comprises a low frequency transducer element that delivers low frequency ultrasound in the range of 20 kHz to 500 kHz and a high frequency transducer element that is different from the low frequency transducer element and delivers high frequency ultrasound in the range of 0.5 MHz to 3.5 MHz, wherein the spatial average power density of the low frequency ultrasound energy is from 20 to 500 mW/cm2, wherein the dual frequency transducers are driven in accordance with a treatment protocol for a dermatologic skin condition so as to deliver a desired sequence of low and high frequency ultrasound to the skin under treatment whereby an ultrasound field moves across the ultrasound transducer elements in a preset pattern and at a preset speed to treat the dermatologic skin condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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- 11. A kit comprising an ultrasound apparatus and a gel pad, gel cartridge or free flowing gel, wherein the gel pad, gel cartridge or free flowing gel comprises a composition that includes one or more hyaluronan, wherein the ultrasound apparatus comprises a plurality of dual frequency transducers each of which comprises a low frequency transducer element that delivers low frequency ultrasound of 20 kHz to 500 kHz and a high frequency transducer element that is different from the low frequency transducer element and delivers high frequency ultrasound of 0.5 MHz to 3.5 MHz directly or indirectly to an area of skin where the gel pad, gel cartridge or free flowing gel has been applied, or as a pre-treatment to an area of skin to which the gel pad, gel cartridge or free flowing gel is to be applied, wherein the spatial average power density of the low frequency ultrasound energy is from 20 to 500 mW/cm2, and wherein the ultrasound apparatus further comprises a drive circuit operable to drive the dual frequency transducers in accordance with a treatment protocol for a dermatologic skin condition so as to deliver a desired sequence of low and high frequency ultrasound to the skin under treatment whereby an ultrasound field moves across the dual frequency transducers in a preset pattern and at a preset speed to treat the dermatologic skin condition.
Specification