Method and apparatus for fractional skin treatment
First Claim
Patent Images
1. An RF skin treatment apparatus, comprising:
- an applicator configured to apply an RF pulse to a stratum corneum layer of skin through a tip having a plurality of skin-contacting electrodes associated therewith;
an RF voltage source separate from the applicator and configured to deliver RF energy to the applicator through an elongated harness; and
an isolating transformer located in the applicator and configured to be electrically disposed between the RF voltage source and the tip to reduce undesired current flow to the skin, wherein both ends of a secondary coil of the isolating transformer are configured to connect to the tip.
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Abstract
An apparatus for cosmetic RF skin treatment where the RF energy supply is isolated from the patient treated, such that in course of treatment no undesired current flows through the subject body.
33 Citations
27 Claims
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1. An RF skin treatment apparatus, comprising:
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an applicator configured to apply an RF pulse to a stratum corneum layer of skin through a tip having a plurality of skin-contacting electrodes associated therewith; an RF voltage source separate from the applicator and configured to deliver RF energy to the applicator through an elongated harness; and an isolating transformer located in the applicator and configured to be electrically disposed between the RF voltage source and the tip to reduce undesired current flow to the skin, wherein both ends of a secondary coil of the isolating transformer are configured to connect to the tip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An RF skin treatment method, comprising:
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applying, from an applicator, an RF pulse to a stratum corneum layer of skin through a tip having a plurality of skin-contacting electrodes associated therewith; delivering, from an RF voltage source separated from the applicator by a harness, RF energy to the applicator through the harness; and reducing undesired current flow to the skin by isolating current applied to the stratum corneaum using an isolating transformer electrically disposed between the RF voltage source and the tip, wherein the isolating transformer is located in the applicator, and both ends of a secondary coil of the isolating transformer are configured to connect to the tip. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An RF skin treatment apparatus, comprising:
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an RF voltage source configured to apply an RF pulse to a stratum corneum layer of skin through a tip of an applicator having a plurality of skin-contacting electrodes; and an isolating transformer configured to be electrically disposed between the RF voltage source and the tip, the isolating transformer being located in the applicator so as to be proximate the tip in order to reduce undesired current flow to the skin, wherein both ends of a secondary coil of the isolating transformer are configured to connect to the tip.
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Specification