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Portable apparatus for peritoneal dialysis therapy

  • US 20060195064A1
  • Filed: 02/28/2005
  • Published: 08/31/2006
  • Est. Priority Date: 02/28/2005
  • Status: Abandoned Application
First Claim
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1. An apparatus for pumping fluids between a peritoneal dialysis machine and a patient in order to perform peritoneal dialysis upon the patient, comprising:

  • a pair of diaphragm pumps, each having a variable stroke, the pumps being adapted to be connected between the peritoneum of a patient and fluid-containing chambers;

    the fluid-containing chambers including one for receiving output fluids from the patient and one containing fluids to be pumped into the patient;

    a stepper motor coupled to each diaphragm pump to bidirectionally actuate the pump; and

    a digital stepper motor control for controlling the variable stroke of the piston of each pump so as to accurately stroke the pump in predetermined increments and at a predetermined speed to pass precise amounts of fluid between the patient and the apparatus during predetermined times, the control being capable of operating the pair of pumps either in tandem or in opposing directions.

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