Solid-body catheter including lateral distal openings
First Claim
1. A catheter including a first lumen, a second lumen, and a distal region, the distal region comprising:
- an 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, the second distal opening proximal of the first distal opening;
a first lateral opening proximal of the second distal opening and in fluid communication with the first lumen, the first lateral opening defined by an angle cross-cut through an outer perimeter of a catheter body; and
a second lateral opening in fluid communication with the second lumen, the second lateral opening defined by an angle cross-cut through an outer perimeter of a catheter body.
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Accused Products
Abstract
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.
630 Citations
14 Claims
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1. A catheter including a first lumen, a second lumen, and a distal region, the distal region comprising:
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an 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, the second distal opening proximal of the first distal opening; a first lateral opening proximal of the second distal opening and in fluid communication with the first lumen, the first lateral opening defined by an angle cross-cut through an outer perimeter of a catheter body; and a second lateral opening in fluid communication with the second lumen, the second lateral opening defined by an angle cross-cut through an outer perimeter of a catheter body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification