Contact detecting method and apparatus for an optical radiation handpiece
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United States of America Patent
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Nov 25, 2003
Grant Date -
Jan 17, 2002
app pub date -
Apr 30, 2001
filing date -
Apr 28, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus are provided in a system for utilizing optical radiation which is applied to a handpiece in contact with a patient's skin to perform a dermatological treatment on the patient to protect the patient by assuring that radiation is applied only when there is good contact between the handpiece and the patient's skin. Good contact is detected by detecting light at a skin contacting surface of the handpiece and enabling the application of radiation only if the detected light is within a selected range. The apparatus assures that the source is not normally enabled and is enabled only when it is safe to apply radiation, and in particular when there is good contact between the handpiece and the patient's skin.
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