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Last catheter with helical internal lumen

  • US 10,383,691 B2
  • Filed: 03/13/2013
  • Issued: 08/20/2019
  • Est. Priority Date: 03/13/2013
  • Status: Active Grant
First Claim
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1. A catheter aspiration system comprising:

  • a catheter having a tubular wall and a longitudinal axis, the tubular wall comprising a lumen and a distal end, and an inner band comprising a distal end, the inner band creating an orifice for the lumen at a lumen distal end, the orifice having a first internal diameter, the lumen extending proximally from the inner band and having a second internal diameter, wherein the first internal diameter of the orifice is smaller than the second internal diameter, the lumen having an inner surface comprising a helical structure extending along a length thereof; and

    a plurality of optical fibers located within the tubular wall, wherein the plurality of optical fibers comprise distal ends, wherein the distal end of the tubular wall, the distal ends of the optical fibers, and the distal end of the inner band terminate at a common plane perpendicular to the longitudinal axis; and

    a vacuum pump in fluid communication with the catheter.

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