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Catheter

  • US 5,104,393 A
  • Filed: 11/02/1990
  • Issued: 04/14/1992
  • Est. Priority Date: 08/30/1989
  • Status: Expired due to Term
First Claim
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1. A process for treating ventricular tachycardia in a patient comprising the steps of:

  • a. electrophysiologically mapping a heart of said patient to locate at least one tachycardia focus;

    b. introducing a catheter system into the circulatory system of said patient, said catheter system comprising a lumen through which runs an optical fiber and a single fixation wire;

    c. advancing said catheter system into said heart;

    d. positioning a distal tip of said catheter system adjacent to at least one located tachycardia focus;

    e. fixing said distal tip of said catheter system in place by urging a sigmoidal bend of said catheter system into contact with the inner walls of said heart and by advancing said fixation wire in said catheter system distally so that said fixation wire engages a wall of said heat; and

    ,f. irradiating said tachycardia focus with laser energy transmitted by said optical fiber.

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