초록 ▼

A dialysis machine is disclosed that incorporates a water treatment module, a dialysate preparation module having a dialysate circuit, and an extracorporeal circuit including a dialyzer and arterial and venous blood lines that connect to the patient. The machine accomplishes on-line disinfection of

A dialysis machine is disclosed that incorporates a water treatment module, a dialysate preparation module having a dialysate circuit, and an extracorporeal circuit including a dialyzer and arterial and venous blood lines that connect to the patient. The machine accomplishes on-line disinfection of all the fluid circuits of the machine, including the water treatment module, the dialysate preparation module and extracorporeal circuit, the arterial and venous lines, and the dialyzer, by circulating water heated to a high level disinfection temperature (e.g., 80 degrees C.) through the fluid passages of the machine for a sufficient time (such as an hour) to achieve high level disinfection. After the dialysis session is ended, the patient connects the arterial and venous lines to ports in a disinfection manifold that places the arterial and venous lines into fluid communication with the heated water. Thereafter, the machine is ready to disinfect the fluid circuits including the extracorporeal circuit. In a preferred embodiment, the ports of the disinfection manifold ports include recessed features that permit the hot water to circulate on the interior and exterior surfaces of the arterial and venous line connectors, thereby insuring that the surfaces of connectors themselves are also disinfected.

대표청구항 ▼

In a dialysis machine having a water treatment module, a dialysate circuit circulating dialysate to a dialyzer, and an extracorporeal circuit having an arterial line and a venous line connected to said dialyzer transporting body fluids from a patient to said dialyzer and back to the patient, a metho

In a dialysis machine having a water treatment module, a dialysate circuit circulating dialysate to a dialyzer, and an extracorporeal circuit having an arterial line and a venous line connected to said dialyzer transporting body fluids from a patient to said dialyzer and back to the patient, a method of disinfecting said water treatment module, dialysate circuit and extracorporeal circuit against bacteriological substances by circulating water through said water treatment module, dialysate circuit and extracorporeal circuit that has been heated to a high level disinfection temperature below the water\s boiling point sufficient to achieve disinfection without the use of chemical cleaning agents, comprising the steps of: filtering water in said water treatment module through a reverse osmosis filter to produce filtered water; heating said filtered water within said dialysis machine to said high level disinfection temperature below the boiling point of said filtered water to produce heated, filtered water; placing said arterial and venous lines in fluid communication with said heated, filtered water; circulating said heated, filtered water through said water treatment module, dialysate circuit and extracorporeal circuit including said arterial line, venous line and dialyzer for a sufficient amount of time at or above said high level disinfection temperature to achieve disinfection of said water treatment module, dialysate circuit and extracorporeal circuit including said arterial and venous lines and said dialyzer.