Solid-body catheter including lateral distal openings

摘要

A split-tip catheter for placement within the vasculature of a patient and for use in hemodialysis or other suitable procedures is disclosed. In one embodiment, the split-tip catheter includes a catheter body that defines a first lumen and a second lumen. The catheter body further comprises a split distal region, including a venous segment and an arterial segment. The venous segment includes a recess extending proximally of a nose portion; and a lateral opening in fluid communication with the first lumen. The arterial segment also includes a lateral opening, is separate from the venous segment, and is removably seatable in the recess provided by the venous segment. In one embodiment, the distal region is un-split, but includes symmetrically opposed lateral openings, as well as distal openings, in communication with the first and second lumens for providing a functional stagger for blood flow in both forward and reverse catheter flow directions.

主权项

1. A catheter for vascular insertion, comprising:
a catheter body including an outer wall enclosing a first lumen and a second lumen, the first lumen separated from the second lumen by a septum; an atraumatic nose portion at a distal end of the catheter body, the atraumatic nose portion defining a first distal opening in fluid communication with the first lumen and a second distal opening in fluid communication with the second lumen; a first lateral opening in fluid communication with the first lumen at the distal end of the catheter body proximal to the atraumatic nose portion, the first lateral opening defined by a skive cut through the outer wall of the catheter body, the skive cut defined by:
a first cut at an angle relative to a longitudinal axis of the catheter body in a range from about 20 degrees to about 90 degrees; anda second cut at an angle relative to a plane through the septum of about 45 degrees or less; a second lateral opening in fluid communication with the second lumen at the distal end of the catheter body proximal to the atraumatic nose portion.