Catheter assembly including triple lumen tip
First Claim
Patent Images
1. A catheter assembly, comprising:
- a catheter body defining at least a first lumen and a second lumen, the catheter body including a distal tip region, the distal tip region including;
at least one venous lateral opening in fluid communication with the first lumen, the at least one venous lateral opening defined by an angled cross cut through an outer perimeter of the catheter body and including a distal-facing portion; and
at least one arterial lateral opening in fluid communication with the second lumen, the at least one arterial lateral opening defined by an angled cross cut through the outer perimeter of the catheter body and including a distal-facing portion, the at least one arterial lateral opening being opposingly positioned in about an un-staggered configuration with respect to the at least one venous lateral opening, the venous and arterial lateral openings imparting a lateral and a distal direction to fluid flowing out therefrom.
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Abstract
A catheter assembly for use in accessing a vasculature of a patient during renal replacement or other therapies is disclosed. In one embodiment, the catheter assembly includes a catheter body that defines first and second lumens. The catheter body defines a distal tip region that includes a venous lateral opening that is in fluid communication with the first lumen and an arterial lateral opening that is in fluid communication with the second lumen.
642 Citations
33 Claims
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1. A catheter assembly, comprising:
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a catheter body defining at least a first lumen and a second lumen, the catheter body including a distal tip region, the distal tip region including; at least one venous lateral opening in fluid communication with the first lumen, the at least one venous lateral opening defined by an angled cross cut through an outer perimeter of the catheter body and including a distal-facing portion; and at least one arterial lateral opening in fluid communication with the second lumen, the at least one arterial lateral opening defined by an angled cross cut through the outer perimeter of the catheter body and including a distal-facing portion, the at least one arterial lateral opening being opposingly positioned in about an un-staggered configuration with respect to the at least one venous lateral opening, the venous and arterial lateral openings imparting a lateral and a distal direction to fluid flowing out therefrom. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of treating blood of a patient, comprising:
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a) aspirating blood from the patient through a first opening in fluid communication with a first lumen of a catheter assembly; b) treating the blood outside a body of the patient; c) infusing the treated blood through a second opening in fluid communication with a second lumen of the catheter assembly; d) infusing a fluid through a third lumen of the catheter assembly; and e) reversing the flow of blood within the first and second lumens so as to infuse blood through the first lumen and aspirate blood through the second lumen, a recirculation rate after reversal of the flow of blood being less than or equal to about five percent. - View Dependent Claims (16, 17, 18, 19)
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20. A catheter assembly, comprising:
a catheter body defining a first lumen and a second lumen, the catheter body including a distal tip region, the distal tip region including; a tapered nose portion; a venous lateral opening in fluid communication with the first lumen and defined on a portion of the nose portion, the venous lateral opening defined by an angled cross cut through an outer perimeter of the catheter body; and an arterial lateral opening in fluid communication with the second lumen and defined on a portion of the nose portion, the arterial lateral opening defined by an angled cross cut through the outer perimeter of the catheter body, the venous and arterial lateral openings imparting at least a lateral direction to fluid flowing therefrom. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. A catheter assembly, comprising:
a catheter body defining a first lumen and a second lumen, the catheter body including a distal tip region, the distal tip region including; a nose portion defining a distally converging outer surface; a venous lateral opening in fluid communication with the first lumen and defined by an angled cross cut through an outer perimeter of the catheter body, the venous lateral opening being at least partially defined on the distally converging outer surface diameter; and an arterial lateral opening in fluid communication with the second lumen and defined by an angled cross cut through the outer perimeter of the catheter body, the arterial lateral opening being at least partially defined on the distally converging outer surface diameter, the venous and arterial lateral openings imparting at least a lateral direction to fluid flowing therefrom. - View Dependent Claims (29, 30, 31, 32, 33)
Specification