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FIBEROPTIC CATHETER

  • US 3,866,599 A
  • Filed: 01/21/1972
  • Issued: 02/18/1975
  • Est. Priority Date: 01/21/1972
  • Status: Expired due to Term
First Claim
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1. A catheter for insertion into the cardiovascular system comprising an elongated flexible element having a multiplicity of light-conducting fibers extending therethrough, a recess formed in the distal end of the element, the recess cutting across said fibers at an angle to the longitudinal axis of the fibers, the distal end of the catheter preventing the light conducting fibers from contacting said vessel wall, and an expandable sleeve located near the distal end and on the exterior of said catheter whereby upon expansion of the sleeve, it extends beyond said element to further maintain a space between the distal end of the fibers and the end of the sleeve.

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