Treatment apparatus and methods for delivering high frequency energy across large tissue areas
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United States of America Patent
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Jul 10, 2012
Grant Date -
Jan 15, 2009
app pub date -
Jul 10, 2008
filing date -
Jul 10, 2007
priority date (Note) -
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Abstract
Apparatus and methods for treating skin conditions that deliver high frequency energy across large tissue areas. The treatment apparatus comprises a treatment tip carrying a plurality of electrodes that are switched such that fewer than all of the electrodes are concurrently energized. The treatment tip includes a cooling mechanism that cools near-surface tissue regions disposed between the skin surface and the treated tissue by cooling the respective electrode that treats each of the regions. The cooling mechanism may include a heat transfer body intervening between the electrodes and a fluid delivery member configured to discharge coolant that impinges the heat transfer body. Alternatively, the cooling mechanism may include a fluid delivery member having individually valve-controlled passages configured to discharge a dedicated stream of coolant at each of the electrodes, a thermoelectric cooler, or a closed-loop fluid delivery member.
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