Apparatus and method for the treatment of acute and chronic renal disease by continuous passive plasma ultrafiltration
First Claim
1. A method of removing toxins from a patient'"'"'s blood comprising:
- implanting a catheter having a plasmapheresis filter element secured on or adjacent to an end thereof within a blood vessel of a patient;
passing a portion of blood plasma to be discarded and containing the toxins to be removed from the patient'"'"'s blood supply through said filter element and directing said blood plasma along said catheter; and
discarding said portion of blood plasma.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for treatment of acute and chronic renal disease by continuous passive plasma ultrafiltration includes a plasmapheresis element comprising a catheter and a plasmapheresis filter element secured to the end of the catheter for being implanted in a patient'"'"'s vena cava or jugular vein, a tube secured to the catheter for receiving and directing blood plasma, a one-way valve for preventing fluid flow from the tube to the catheter, and a container for receiving and collecting the blood plasma. The treatment of the patient is performed by implanting the catheter and plasmapheresis filter element in a patient'"'"'s vena cava, passing of blood plasma containing the toxins to be removed from the patient'"'"'s blood supply through the filter element and along the catheter, and collecting and discarding the collected blood plasma.
146 Citations
42 Claims
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1. A method of removing toxins from a patient'"'"'s blood comprising:
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implanting a catheter having a plasmapheresis filter element secured on or adjacent to an end thereof within a blood vessel of a patient; passing a portion of blood plasma to be discarded and containing the toxins to be removed from the patient'"'"'s blood supply through said filter element and directing said blood plasma along said catheter; and discarding said portion of blood plasma. - 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. An apparatus for removing toxins from a patient'"'"'s blood comprising:
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a single lumen catheter having a plasmapheresis filter element secured on or adjacent to an end thereof, said catheter and said filter capable of implantation in a patient'"'"'s vena cava or jugular vein and for directing blood plasma to be discarded therefrom; a flexible tube secured to said catheter for receiving and directing blood plasma to be discarded from said catheter, and a one-way valve cooperating therewith along said flexible tube for preventing fluid flow of said plasma to be discarded from returning from said tube to said catheter; and a container cooperating with said tube for receiving and collecting blood plasma from said tube to be discarded. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An apparatus for removing toxins from a patient'"'"'s blood comprising:
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a dual lumen catheter having a plasmapheresis filter element secured on or adjacent to a first end thereof, said catheter and said filter element capable of implantation in a patient'"'"'s vena cava or jugular vein, said catheter having a first lumen for directing blood plasma to be discarded from said patient and a second lumen for directing fluid other than said blood plasma to be discarded to said patient; an infusion fluid flow directing means cooperating with said second lumen of said catheter for directing fluid other than said blood plasma to be discarded to said patient therethrough; a flexible tube cooperating with said first lumen for directing blood plasma to be discarded from said patient therethrough and a one-way valve cooperating therewith for preventing flow of said blood plasma to be discarded back to said patient; and a container for receiving and collecting blood plasma to be discarded from said tube. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification