SHEAR-INDUCED DERMAL INFUSION
First Claim
1. A skin treatment apparatus, comprising:
- a shear inducing head having a first friction surface adjacent a first edge, and a second friction surface adjacent a second edge, which is spaced a constant distance from the first edge in order to form a gap having a width of between about 0.003 mm and 0.200 mm; and
a drive motor assembly configured to impart an oscillating motion to the shear inducing head such that the first friction surface moves with respect to the second friction surface in an oscillating manner.
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Accused Products
Abstract
Treatment protocols for preparing a subject'"'"'s skin to receive skin formulations having one or more active materials are provided. The devices and/or methods for carrying out the treatment protocols aim to increase the skin'"'"'s ability for skin formulations to penetrate or infuse into the SC layers thereof. The treatment protocol includes the application of shearing forces in order to part, tear, or form fissures only in the Stratum Corneum (SC) of the subject'"'"'s skin without inducing trauma in viable skin layers below the SC. After application of shearing forces to the skin, a skin formulation can be applied to the sheared areas of skin.
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Citations
20 Claims
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1. A skin treatment apparatus, comprising:
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a shear inducing head having a first friction surface adjacent a first edge, and a second friction surface adjacent a second edge, which is spaced a constant distance from the first edge in order to form a gap having a width of between about 0.003 mm and 0.200 mm; and a drive motor assembly configured to impart an oscillating motion to the shear inducing head such that the first friction surface moves with respect to the second friction surface in an oscillating manner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for applying shear force to a subject'"'"'s skin, the method comprising:
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oscillating a shear inducing head having a first member oscillating at a selected amplitude and frequency with respect to a second member, the first and second members spaced a constant distance apart and defining first and second gripping surfaces, respectively; and contacting the shear inducing head to a region of the subject'"'"'s skin. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method for infusing a skin formulation into a user'"'"'s epidermis, comprising:
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applying shear force to a region of a subject'"'"'s skin, thereby defining sheared areas of skin; and applying a skin formulation to the sheared areas of skin. - View Dependent Claims (20)
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Specification