High pressure injection system

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/00 (2006.01) A61J 1/00 (2006.01) A61M 5/315 (2006.01) A61M 25/00 (2006.01) A61M 29/00 (2006.01)

Patent

CA 2430752

A catheter (10) and system for delivering viscous fluid, under high pressures, into the vasculature of a patient includes a catheter body (12) having a proximal end (14) and a distal end (16), a reinforcing member (38) surrounding at least a portion of the proximal end (14), and a compression fitting (20) surrounding the reinforcing member (38) for holding the proximal end (14) to prevent kinking of the catheter body (12). A strain relief element (22) shrouds a portion of the proximal end (14) to prevent kinking of the catheter body (12). Accordingly, the reinforcing member (38), the compression fitting (20) and the strain relief element (22) cooperate to hold the catheter body (12) in a luer fitting (18) and to prevent the proximal end (14) of the catheter body (12) from kinking under bending, and to prevent leakage or bursting under pressure.

L'invention concerne un cathéter (10) et un système destiné à l'administration d'un liquide visqueux, à haute pression, dans le système vasculaire d'un patient, comprenant un corps de cathéter (12) ayant une extrémité proximale (14) et une extrémité distale (16), un élément de renfort (38) entourant au moins une partie de l'extrémité proximale (14) et un raccord à compression (20) entourant l'élément de renfort (38) et destiné à fixer l'extrémité proximale (14) pour éviter la formation de coudes dans le corps du cathéter (12). Un élément de serrage (22) enveloppe une partie de l'extrémité proximale (14) pour éviter la formation de coudes dans le corps du cathéter (12). Ainsi, l'élément de renfort (32), le raccord à compression (20) et l'élément de serrage (22) coopèrent pour maintenir le corps du cathéter (12) dans l'embout Luer (18) et pour éviter, d'une part, la formation d'un coude dans l'extrémité proximale (14) du corps du cathéter (12) lorsqu'elle est pliée et, d'autre part, les fuites ou éclatements sous pression.

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