Cleaning and priming method for dialysis system
First Claim
1. A method of cleaning and priming a dialysis system where the dialysis system comprisesa dialyzer having a dialysate flow path and a blood flow path partitioned by a dialysis membrane;
- a closed-type water-removal control apparatus for controlling a difference between volumes of a fresh dialysate flowing into the dialyzer and a used dialysate flowing out of the dialyzer by removing a volume of water, said closed-type water-removal control apparatus including a fresh dialysate chamber and a used dialysate chamber;
a fresh dialysate supply line extending from a source of fresh dialysate to the fresh dialysate chamber;
a dialysate line connecting the closed-type water-removal control apparatus and the dialysate flow path of the dialyzer, said dialysate line including an inlet line to the dialyzer connected to the fresh dialysate chamber and an outlet line from the dialyzer connected to the used dialysate chamber;
a dialysate pressurizing line connected to said fresh dialysate supply line at a junction with said fresh dialysate supply line and connected to said inlet line to the dialyzer at a junction with said inlet line to the dialyzer;
a dialysate pressurizing pump provided in the dialysate pressurizing line between said junctions;
an artery side blood line connected to a blood inlet of the dialyzer;
a blood pump provided in the artery side blood line; and
a vein side blood line connected to a blood outlet of the dialyzer;
said method comprising pressuring the dialysate from the fresh dialysate source into said dialysate line via said dialysate pressurizing line to cause the dialysate to flow through the dialysis membrane of the dialyzer into the blood flow path.
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Abstract
A dialysis system which does not need to use a physiological saline in replenishing a solution or cleaning and priming the dialysis system, does not need a troublesome setting operation and can easily and accurately set a flow rate of a replenisher solution. The dialysis system includes a closed type water-removal control apparatus 1, a dialyzer 2, a fresh dialysate line 3 as well as a used dialysate line 4, a dialysate pressurizing line 5, a dialysate pressurizing pump 51 provided in the dialysate pressurizing line 5, an artery side blood line 6, a blood pump 61 provided in the artery side blood line 6 and a vein side blood line 7. According to the dialysis system, by pressurizing a dialysate into a communication line of the dialysate, the dialysate is made to flow from a dialysate flow path 21 into a blood flow path 22 through a dialysis membrane 23 of the dialyzer 2 and the inside of a blood circulation path can be cleaned and primed.
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Citations
2 Claims
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1. A method of cleaning and priming a dialysis system where the dialysis system comprises
a dialyzer having a dialysate flow path and a blood flow path partitioned by a dialysis membrane; -
a closed-type water-removal control apparatus for controlling a difference between volumes of a fresh dialysate flowing into the dialyzer and a used dialysate flowing out of the dialyzer by removing a volume of water, said closed-type water-removal control apparatus including a fresh dialysate chamber and a used dialysate chamber;
a fresh dialysate supply line extending from a source of fresh dialysate to the fresh dialysate chamber;
a dialysate line connecting the closed-type water-removal control apparatus and the dialysate flow path of the dialyzer, said dialysate line including an inlet line to the dialyzer connected to the fresh dialysate chamber and an outlet line from the dialyzer connected to the used dialysate chamber;
a dialysate pressurizing line connected to said fresh dialysate supply line at a junction with said fresh dialysate supply line and connected to said inlet line to the dialyzer at a junction with said inlet line to the dialyzer;
a dialysate pressurizing pump provided in the dialysate pressurizing line between said junctions;
an artery side blood line connected to a blood inlet of the dialyzer;
a blood pump provided in the artery side blood line; and
a vein side blood line connected to a blood outlet of the dialyzer;
said method comprising pressuring the dialysate from the fresh dialysate source into said dialysate line via said dialysate pressurizing line to cause the dialysate to flow through the dialysis membrane of the dialyzer into the blood flow path. - View Dependent Claims (2)
wherein the dialysis system is a dialysis system for a central dealysate supply.
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Specification