Method and apparatus for treating renal disease with hemodialysis utilizing pulsatile pump
First Claim
10. An apparatus for performing hemodialysis on a subject in need of such treatment, comprising:
- a dialysis filter having a blood compartment and a dialysate compartment separated from said blood compartment by a semi-permeable membrane;
a first pump fluidly connected with the blood compartment that conveys blood from the patient through a blood compartment of the filter and back to the subject; and
a second pump fluidly connected to the dialysate compartment;
wherein at least one of said first and second pumps is configured to induce pulsatile flow.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of removing toxins from blood from a patient in need of such toxin removal includes: providing a countercurrent dialysis filter (20) having a blood compartment and a dialysate compartment separated from the blood compartment by a semi-permeable membrane; conveying blood from the patient through the blood compartment of a countercurrent filter (20) an back to the patient; and drawing dialysate from a reservoir (32) through the dialysate compartment of the countercurrent filter (20). At least one of the blood or dialysate experiences pulsatile flow. The steps are carried out such that blood toxins are drawn from the blood compartment through the semi-permeable membrane into the dialysate compartment.
-
Citations
16 Claims
-
10. An apparatus for performing hemodialysis on a subject in need of such treatment, comprising:
-
a dialysis filter having a blood compartment and a dialysate compartment separated from said blood compartment by a semi-permeable membrane; a first pump fluidly connected with the blood compartment that conveys blood from the patient through a blood compartment of the filter and back to the subject; and a second pump fluidly connected to the dialysate compartment; wherein at least one of said first and second pumps is configured to induce pulsatile flow. - View Dependent Claims (1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16)
-
-
15-1. The apparatus defined in claim 10, wherein the pulsatile pressure induced by said first or second pump is at least 30 mm Hg.
-
16-2. The apparatus defined in claim 10, wherein the pulsatile pressure induced by said first pump is at least 30 mm Hg.
Specification