Co-axial catheter

Details Co-axial catheter Co-axial catheter

A - Human Necessities

61

M

A61M 25/00 (2006.01)

Patent

CA 2052300

ABSTRACT OF THE DISCLOSURE A catheter is provided having a main section with proximal and distal ends and including an inner tube. The outer tube extends along a longitudinal axis and combines with the inner tube to define an annular intake lumen, and a tubular tip section is included having a smaller cross-section than the main section. The tip section has a return opening and a transition portion is at the distal end of the main section. The transition portion is formed of material provided in overlapping parts of the inner tube inside the tip section which is inside the outer tube. The inner tube blends into the tip section at the transition portion and the outer tube blends smoothly into the tip section with the intake lumen ending at the transition portion. An outlet lumen is formed by the inner tube and the tip section and ends at the outlet opening.

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