HEMODIALYSIS SYSTEMS AND METHODS
First Claim
1. A hemodialysis system, comprising:
- a blood flow path through which untreated blood is drawn from a patient and passed through a dialyzer;
a dialysate flow path through which dialysate flows from a dialysate supply through the dialyzer, the dialysate flow path and the blood flow path being in fluidic communication; and
a pressure device able to urge dialysate in the dialysate flow path to flow into the blood flow path,wherein pressure is controlled within the pressure device such that the pressure of the dialysate exiting the dialyzer is lower than the pressure of the blood exiting the dialyzer.
2 Assignments
0 Petitions
Accused Products
Abstract
Hemodialysis dialysis systems are disclosed. Hemodialysis systems of the invention may include a dialysate flow path including a balancing circuit, a mixing circuit, and/or a directing circuit. The circuits may be definedwithin one or more cassettes. The fluid circuits may be at least partially isolated, spatially and/or thermally, from electrical components of the system. A gas supply may be provided in fluid communication with the dialysate flow path and/or the dialyzer to, urge dialysate through the dialyzer and blood back to the patient. The hemodialysis systems may include fluid handling devices actuated using a control fluid, optionally delivered using to detachable pump. Fluid handling devices may be generally rigid and of a spheroid shape, optionally with a diaphragm dividing the device into compartments.
-
Citations
6 Claims
-
1. A hemodialysis system, comprising:
-
a blood flow path through which untreated blood is drawn from a patient and passed through a dialyzer; a dialysate flow path through which dialysate flows from a dialysate supply through the dialyzer, the dialysate flow path and the blood flow path being in fluidic communication; and a pressure device able to urge dialysate in the dialysate flow path to flow into the blood flow path, wherein pressure is controlled within the pressure device such that the pressure of the dialysate exiting the dialyzer is lower than the pressure of the blood exiting the dialyzer. - View Dependent Claims (2, 3)
-
-
4. A hemodialysis system, comprising:
-
a blood flow path through which untreated blood is drawn from a patient and passed through a dialyzer; a dialysate flow path through which dialysate flows from a dialysate supply through the dialyzer, the dialysate flow path and the blood flow path being in fluidic communication; and a pressure device able to urge dialysate in the dialysate flow path to flow into the blood flow path, wherein pressure is controlled within the pressure device such that the pressure of the dialysate entering the dialyzer is greater than the pressure of the blood entering the dialyzer. - View Dependent Claims (5, 6)
-
Specification