A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/127, 128/93
A61M 5/00 (2006.01) A61B 17/00 (2006.01) A61M 25/06 (2006.01) A61M 25/01 (2006.01)
Patent
CA 1190828
Abstract of the Disclosure An introducing catheter for use with a pair of different diameter wire guides, the larger of which is a J-type wire guide, is provided in order to enlarge a tract to facilitate the passage of a drainage catheter through the tract. The introducing catheter includes an inwardly curved portion which lies between the distal and proximal ends of the catheter with the curved portion being located nearer to the distal end. The catheter also has a flexible tapered tip at its distal end and a lumen which decreases in area towards the distal end. The catheter further has a side port which is distally positioned from the curved portion and on the inward side of the curved portion so that when a J-type wire guide is advanced within the catheter from the proximal end, the wire guide will automatically emerge through the side port. The side port has an oval or elliptical shape with its major axis along the length of the tube. The catheter lumen has a diameter at the distal end which is substantially smaller than the minor axis diameter of the side port so that a wire guide having a substantially smaller external diameter than that of the J-type wire guide may be used as a guide for the catheter distal end. The introducing catheter is radiopaque, so that its position within a body can be monitored. The introducing catheter has a base portion at the proximal end for grasping and manipulating the catheter during a catheterization.
426067
Cope Constantin
Cook Incorporated
Smart & Biggar
LandOfFree
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