Method of introducing a catheter

摘要

A system and method for vessel catheterization is provided, having an introducer sheath and a catheter. The introducer sheath can include a handle and a sheath body extending from the handle. An access lumen is provided in the introducer sheath, and can include a tapered portion that is sized to receive a tapered outer surface of the catheter. The catheter may be a central venous catheter, such as a peripherally inserted central catheter, including a hub, a catheter body with at least one lumen extending distally from the hub, and at least one tube extending proximally from the hub. The introducer sheath is preferably a splittable sheath. The catheter can be inserted into the access lumen, and translated until confronting surfaces of the tapered outer surface of the catheter body and the tapered portion of the introducer sheath contact one another. This arrangement can inhibit buckling and/or kinking of the catheter during insertion, and improve initial catheter tip positioning.

主权项

1. A method of vessel catherization comprising:
providing a catheter assembly comprising a catheter body and a hub assembly, said catheter body having one or more lumens extending longitudinally therethrough and extending distally from said hub assembly, said catheter body comprising a tapered outer surface adjacent said hub assembly; providing an introducer sheath comprising a handle and a sheath body extending from said handle, said introducer sheath having an access lumen extending through said sheath body and said handle, wherein said access lumen has a tapered portion sized to receive said tapered outer surface of said catheter body; creating an entry opening through a vessel with a needle; introducing said introducer sheath through said vessel entry opening to access said vessel; introducing said catheter body of said catheter assembly into said vessel through said access lumen of said introducer sheath; and translating said catheter body through said vessel until confronting surfaces of said tapered outer surface of said catheter body and said tapered portion of said introducer sheath contact one another; wherein an external dangling portion of said catheter body between said handle of said introducer sheath and said hub assembly of said catheter assembly is limited to inhibit buckling and kinking of said catheter body outside said introducer sheath when said confronting surfaces of said tapered outer surface of said catheter body and said tapered portion of said introducer sheath contact one another.