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Angiography catheter

  • US 5,480,392 A
  • Filed: 02/03/1994
  • Issued: 01/02/1996
  • Est. Priority Date: 02/04/1993
  • Status: Expired due to Term
First Claim
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1. An angiography catheter of the "pigtail" type comprising a tubular body having a generally cylindrical wall, a proximal end, a main portion, a distal end portion, a distal end and at least one lumen debouching at the distal end in an end opening, said distal end portion having a permanent, at least partially generally circular curvature that lies in a plane that also contains a distal portion of said main portion and having a number of openings arranged only in a portion of a wall facing outwardly of said generally circular curvature in said distal end portion and in said plane, said openings being arranged in the curvature in a side of said wall of said distal end portion remote from said end opening and facing in a direction in said plane containing said at least partially generally circular curvature and said distal portion of said main portion, whereby fluid exiting said openings in side of said wall of said distal end portion having said curvature will reduce, if not eliminate, any force of said fluid on said distal end portion having said curvature that tends to "uncurl" said distal end portion having said curvature.

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