Patent ID: 9675744
Date: 2017-06-13
CPC Classifications: A61M

Claim:
1. A method of operating a disposable pumping unit comprising: enabling the disposable pumping unit to be loaded into a peritoneal dialysis hardware unit between a door and a housing of the hardware unit, the hardware unit including a negative pressure pneumatic source having an air pump motor and at least one pneumatic line; wherein the disposable pumping unit includes a first surface, a second opposing surface and a fluid pump receptacle, the fluid pump receptacle extending from the first surface and the second surface so as to fit within a first opening provided in the door of the hardware unit, the disposable pumping unit including at least one flexible pumping membrane; enabling the disposable pumping unit to be guided into the hardware unit such that the fluid pump receptacle is aligned with the first opening and a second opening provided in the housing of the hardware unit when the door is closed against the housing; and applying negative pressure from the negative pressure pneumatic source to the at least one flexible pumping membrane of the fluid pump receptacle during both pump-in and pump-out strokes.