Abstract: A catheter is made by extrusion of flexible plastic to form a tubular basic catheter body with a central channel. A curved end part is formed in one end thereof, with the central channel lying in eccentric relation inwardly toward the inside of the curved part to define a relatively thin catheter wall inwardly of the curve and a relatively thicker catheter wall outwardly of the curve of the curved part. Side holes may be punched into the curved part, with the side holes being of larger size without buckling of the side holes as the curved part of the catheter is straightened out.

Abstract: A catheter, such as an angiographic catheter, comprises a flexible, tubular, catheter body which is attached at one end to a strain relief member. A coupling element or hub is carried at the same end of the catheter, with the strain relief member typically extending over a predetermined distance in secured relation with the coupling element. In accordance with this invention, at least a portion of the strain relief member protruding outside of said coupling element has a profiled outer surface to facilitate axial rotation of the catheter with the fingers. The profiled surface may comprise longitudinal ridges, or it may comprise a knurled surface, for example.