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Method and apparatus for treating a body site with laterally directed laser radiation

  • US 5,242,438 A
  • Filed: 04/22/1991
  • Issued: 09/07/1993
  • Est. Priority Date: 04/22/1991
  • Status: Expired due to Fees
First Claim
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1. A catheter suitable for coupling to a laser source to direct radiant energy laterally to a selected body cavity site, said catheter comprising:

  • (a) an elongate, optical fiber adapted for coupling to said laser source and having a distal end region that extends along a longitudinal axis and that terminates in an energy delivery surface for emitting laser radiation transmitted by the fiber;

    (b) reflector means exposed to said cavity site and positioned generally axially aligned with said energy delivery surface for reflecting said emitted radiation in a beam radiating substantially transversely of, and substantially around, said axis;

    (c) a housing defining a central bore in which said optical fiber is disposed with said fiber energy delivery surface projecting beyond said bore;

    said housing including a plurality of struts circumferentially spaced around, and extending beyond, said fiber energy delivery surface;

    said housing including a support ring connecting ends of said struts; and

    said reflector means including a reflector plug mounted to said ring, said plug defining a conical surface that has an apex on said axis and that faces said fiber energy delivery surface.

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