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FOCUSED NEAR-INFRARED LASERS FOR NON-INVASIVE VARICOSE VEINS AND OTHER THERMAL COAGULATION OR OCCLUSION PROCEDURES

  • US 20140188094A1
  • Filed: 12/17/2013
  • Published: 07/03/2014
  • Est. Priority Date: 12/31/2012
  • Status: Abandoned Application
First Claim
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1. A therapeutic system comprising:

  • a light source generating an output optical beam, comprising;

    a plurality of semiconductor sources generating an input optical beam;

    a multiplexer configured to receive at least a portion of the input optical beam and to form an intermediate optical beam; and

    one or more fibers configured to receive at least a portion of the intermediate optical beam and to form the output optical beam, wherein the output optical beam comprises one or more optical wavelengths, and wherein at least a portion of the one of more fibers is a fused silica fiber with a core diameter less than approximately 400 microns;

    an interface device configured to receive a received portion of the output optical beam and to deliver a delivered portion of the output optical beam to a sample, wherein the interface device comprises one or more lenses to focus at least a part of the delivered portion of the output optical beam on the sample, and wherein the interface device further comprises a surface cooling apparatus to reduce damage to a top surface of the sample; and

    wherein the part of the delivered portion of the output optical beam is at least partially absorbed in the sample to thermally damage at least a part of the sample, wherein a sample temperature in the part of the sample reaches about 65 Celsius or higher, while a cover temperature at the top surface of the sample remains less than about 65 Celsius, and wherein the output optical beam comprises a fluence less than about 250 Joules per centimeter squared.

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