作者: Vincent L. Vaillancourt
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摘要: A catheter system is provided for the introduction and placement of a flexible into lumen an artery or vein. guide wire kept in sterile condition within bag-like enclosure attached to hub needle. The needle hollow sharpened usual manner secured provide assembly. This with skirt extends through this flow communication "flashback" chamber. In one embodiment, connected tubular member having transverse hole near its interior end, another embodiment needle's inner end channel annular groove centering plug. every there plug which provides guideway positioned prevent fluid flow. manipulated forwardly by grasping advanced "feel" after penetration has been made as indicated "flashback." separated from along until achieved, needle, bag are withdrawn patient discarded.