Anti-clotting indwelling catheter
First Claim
Patent Images
1. A dialysis catheter, comprising:
- an elongate body extending between a distal end and a proximal end, said body including a first wall defining a first lumen for a fluid flow therethrough of at least 300 milliliters per minute out of a vasculature of a patient and a second wall defining a second lumen for a fluid flow therethrough of at least 300 milliliters per minute into the vasculature of the patient, wherein said body includes a first port and a second port at said distal end of said elongate body, said first port in communication with said first lumen and said second port in communication with said second lumen, and further comprising a first end cap and a second end cap at said distal end and an actuating mechanism at said proximal end, said first end cap being coupled to said actuating mechanism by at least both a first non-tubular wire, cable, rod, or bar that extends in said first wall along one side of said first lumen, the first non-tubular wire, cable, rod, or bar extending distally from a first actuator opening, and a second non-tubular wire, cable, rod, or bar that extends in said first wall along an opposite side of said first lumen, the second non-tubular wire, cable, rod, or bar extending distally from a second actuator opening, and said second end cap being coupled to said actuating mechanism by at least both a third non-tubular wire, cable, rod, or bar that extends in said second wall along one side of said second lumen, the third non-tubular wire, cable, rod, or bar extending distally from a third actuator opening, and a fourth non-tubular wire, cable, rod, or bar that extends in said second wall along an opposite side of said second lumen, the fourth non-tubular wire, cable, rod, or bar extending distally from a fourth actuator opening, wherein said actuating mechanism is operable to remotely move said first and second end caps away from said first port and said second port to an open condition and permit said fluid flows through each of said first port and said second port and said actuating mechanism is further operable to remotely move said first and second end caps toward said distal end to a closed condition in sealing engagement with said body to prevent said fluid flows through each of said ports, wherein the first, second, third, and fourth actuator openings are separate from the first port and the second port.
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Accused Products
Abstract
A catheter for providing a blood flow includes a wall defining at least one lumen extending between a distal end and a proximal end. A distal end portion of the catheter is deformable to selectively open and close one or more ports in the wall to allow the blood flow into or out of the at least one lumen of the catheter.
134 Citations
16 Claims
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1. A dialysis catheter, comprising:
an elongate body extending between a distal end and a proximal end, said body including a first wall defining a first lumen for a fluid flow therethrough of at least 300 milliliters per minute out of a vasculature of a patient and a second wall defining a second lumen for a fluid flow therethrough of at least 300 milliliters per minute into the vasculature of the patient, wherein said body includes a first port and a second port at said distal end of said elongate body, said first port in communication with said first lumen and said second port in communication with said second lumen, and further comprising a first end cap and a second end cap at said distal end and an actuating mechanism at said proximal end, said first end cap being coupled to said actuating mechanism by at least both a first non-tubular wire, cable, rod, or bar that extends in said first wall along one side of said first lumen, the first non-tubular wire, cable, rod, or bar extending distally from a first actuator opening, and a second non-tubular wire, cable, rod, or bar that extends in said first wall along an opposite side of said first lumen, the second non-tubular wire, cable, rod, or bar extending distally from a second actuator opening, and said second end cap being coupled to said actuating mechanism by at least both a third non-tubular wire, cable, rod, or bar that extends in said second wall along one side of said second lumen, the third non-tubular wire, cable, rod, or bar extending distally from a third actuator opening, and a fourth non-tubular wire, cable, rod, or bar that extends in said second wall along an opposite side of said second lumen, the fourth non-tubular wire, cable, rod, or bar extending distally from a fourth actuator opening, wherein said actuating mechanism is operable to remotely move said first and second end caps away from said first port and said second port to an open condition and permit said fluid flows through each of said first port and said second port and said actuating mechanism is further operable to remotely move said first and second end caps toward said distal end to a closed condition in sealing engagement with said body to prevent said fluid flows through each of said ports, wherein the first, second, third, and fourth actuator openings are separate from the first port and the second port. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A dialysis catheter, comprising:
an elongate body defining a pair of lumens each configured to permit a fluid flow of at least 300 milliliters per minute therethrough, each of said lumens extending between a distal end and a proximal end, wherein each of said lumens includes a self-closing port at said distal end thereof in communication with a respective lumen of said lumens, and further comprising a pair of end caps at said distal ends of respective ones of said lumens and an actuating mechanism at said proximal ends of said lumens, each of said end caps being coupled to said actuating mechanism by at least two non-tubular wires, cables, rods, or bars that extend in a wall along a respective lumen of said lumens, wherein said actuating mechanism is operable to automatically move each of said end caps with said respective non-tubular wires, cables, rods, or bars away from said port of said respective lumen to an open condition and permit said fluid flow through said port of said respective lumen, and wherein said actuating mechanism is operable to automatically move each of said end caps toward said port of said respective lumen to a closed condition in sealing engagement with said body to prevent said fluid flow through said port of said respective lumen, and wherein each of said respective non-tubular wires, cables, rods, or bars extends distally through openings in a lateral surface of the elongate body. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A catheter comprising:
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an elongate body; a first lumen extending within the elongate body to a first distal port; a second lumen extending within the elongate body to a second distal port; a first end cap coupled to a first actuating member and a second actuating member; the first actuating member displaceably disposed within a wall of the elongate body and distally extending from a first actuator opening in a first distal lateral surface of the elongate body; the second actuating member displaceably disposed within the wall of the elongate body and distally extending from a second actuator opening in the first distal lateral surface of the elongate body; a second end cap coupled to a third actuating member and a fourth actuating member; the third actuating member displaceably disposed within the wall of the elongate body and distally extending from a third actuator opening in a second distal lateral surface of the elongate body; the fourth actuating member displaceably disposed within the wall of the elongate body and distally extending from a fourth actuator opening in the second distal lateral surface of the elongate body; wherein the first, second, third, and fourth actuator openings are separate from the first and second distal ports. - View Dependent Claims (16)
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Specification