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Self-contained, diode-laser-based dermatologic treatment apparatus

  • US 8,551,104 B2
  • Filed: 10/10/2006
  • Issued: 10/08/2013
  • Est. Priority Date: 02/25/2003
  • Status: Active Grant
First Claim
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1. A dermatologic treatment apparatus that is cordless and sufficiently compact as to be hand-held, comprising:

  • (a) a self-contained housing configured for gripping by a person'"'"'s hand for cordless manipulation in a dermatologic treatment procedure;

    (b) a light source comprising one or more diode laser bars each having a plurality of emitters within the housing;

    (c) direct drive electrical circuit within the housing comprising one or more batteries and an electronic control circuit for directly energizing the light source to produce output light pulses; and

    (d) a light path within the housing including an aperture through which the output light pulses are propagated out of the housing having properties that provide efficacious treatment;

    (e) wherein the cordless apparatus has a total weight of no more than one kilogram,(f) wherein the cordless apparatus occupies no more than 1500 cm3 of volume, and(g) wherein the one or more batteries supply a battery voltage Vbat, and the electronic control circuit comprises one or more field effect transistors (FETs) and a voltage supply, wherein the voltage supply drives the gates of the FETs at a voltage greater than the battery voltage Vbat.

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