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Selective aperture for laser delivery system for providing incision, tissue ablation and coagulation

  • US 6,575,964 B1
  • Filed: 02/04/2000
  • Issued: 06/10/2003
  • Est. Priority Date: 02/03/1998
  • Status: Expired due to Fees
First Claim
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1. A pulsed laser delivery apparatus comprising:

  • a. a first material capable of lasing;

    b. a first pair of reflective surfaces oriented substantially parallel to one another for reflecting light emitted from the first material therebetween thereby forming a first laser beam;

    c. a member having a substantially circular aperture wherein the member is positioned between the first pair of reflective surfaces wherein the aperture passes the first laser beam and wherein the size of the aperture is selectively adjustable; and

    d. means for alternately selecting between aperture sizes within the member to optimize the first laser beam with respect to tissue interaction characteristics of the first laser beam.

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