Loop-tip catheter
First Claim
1. A multi-lumen hemodialysis catheter, comprising:
- a catheter body, including an outer wall enclosing at least a first aspiration and second infusion lumen extending from a proximal end of the catheter body to a distal end thereof, the outer wall forming a loop that extends from the distal end of the catheter body, the loop having a proximal end and a distal end each connected to the distal end of the catheter body to define an enclosed opening, the loop including an uninterrupted portion of the outer wall extending from the proximal end of the loop to the distal end of the loop, the first aspiration lumen extending distally into the loop; and
a first inlet orifice integrally formed on an interior wall of the loop and facing the enclosed opening, wherein the first inlet orifice is in fluid communication with the first aspiration lumen; and
a second outlet orifice integrally formed on a distal most portion of an outer wall of the loop, wherein the second outlet orifice is in fluid communication with the second infusion lumen.
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Accused Products
Abstract
A multi-lumen catheter comprising a loop-like structure at the distal portion of the catheter is disclosed herein. In one variation, the loop-tip catheter comprises a dual lumen catheter and a loop-like structure at the distal end of the catheter. The loop-like structure includes at least one lumen, which is in fluid communication with at lease one of the two lumens in the dual lumen catheter. One or more ports are provided on the loop-like structure for accessing the lumens within the loop. In another variation, the loop-tip catheter is configured with an arterial inlet positioned on an inner surface of the loop, while a venous outlet is positioned on an outer surface of the loop. Methods for making and using variations of the loop-tip catheter are also disclosed herein.
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Citations
31 Claims
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1. A multi-lumen hemodialysis catheter, comprising:
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a catheter body, including an outer wall enclosing at least a first aspiration and second infusion lumen extending from a proximal end of the catheter body to a distal end thereof, the outer wall forming a loop that extends from the distal end of the catheter body, the loop having a proximal end and a distal end each connected to the distal end of the catheter body to define an enclosed opening, the loop including an uninterrupted portion of the outer wall extending from the proximal end of the loop to the distal end of the loop, the first aspiration lumen extending distally into the loop; and a first inlet orifice integrally formed on an interior wall of the loop and facing the enclosed opening, wherein the first inlet orifice is in fluid communication with the first aspiration lumen; and a second outlet orifice integrally formed on a distal most portion of an outer wall of the loop, wherein the second outlet orifice is in fluid communication with the second infusion lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A hemodialysis catheter, comprising:
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an elongated catheter body including an outer wall enclosing two or more lumens, including an aspiration lumen and an infusion lumen, extending from a proximal end of the catheter body to a distal end thereof; and a loop formed by the outer wall extending from the distal end of the elongated catheter body, the loop having a proximal end and a distal end each connected to the distal end of the catheter body to define an enclosed opening, the loop including an uninterrupted section extending from the proximal end of the loop to the distal end of the loop, the loop including an inlet and an outlet integrally formed on the loop, the inlet positioned on an interior wall of the loop and facing the enclosed opening, wherein the inlet is in fluid communication with the aspiration lumen, the outlet integrally formed on a distal most portion of an outer wall of the loop, wherein the outlet is in fluid communication with the infusion lumen, the inlet and outlet enabling simultaneous aspiration of fluids from, and infusion of fluids to, a vessel. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A hemodialysis catheter, comprising:
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a dual lumen catheter body including an outer wall enclosing an arterial lumen and a venous lumen extending from a proximal end of the catheter body to a distal end thereof, the outer wall forming a continuous loop that extends from the distal end of the catheter body, the loop having a proximal end and a distal end each connected to the distal end of the catheter body to define an enclosed opening; an arterial inlet integrally formed on an interior wall of the loop and facing the enclosed opening, the arterial inlet in fluid communication with the arterial lumen; and a venous outlet integrally formed on a distal most portion of an outer wall of the loop, the venous outlet in fluid communication with the venous lumen. - View Dependent Claims (28, 29, 30, 31)
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Specification