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HEMOFILTRATION SYSTEM AND METHOD BASED ON MONITORED PATIENT PARAMETERS, SUPERVISORY CONTROL OF HEMOFILTRATION, AND ADAPTIVE CONTROL OF PUMPS FOR HEMOFILTRATION

  • US 20100038317A1
  • Filed: 10/19/2009
  • Published: 02/18/2010
  • Est. Priority Date: 04/30/1999
  • Status: Active Grant
First Claim
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1. A hemofiltration system for fluid removal from blood of a patient, comprising:

  • a pump capable of pumping a liquid selected from the group consisting of infusate, drained fluid, and blood in the hemofiltration system;

    a sensor for measuring a flow rate of fluid in the hemofiltration system generated by the pump, the flow rate sensor providing flow rate data signals correlated to the fluid flow rate;

    a supervisory controller operably connectable to the pump in the hemofiltration system and operably connected to the flow rate sensor; and

    a monitor for measuring at least one patient parameter, the patient parameter monitor providing patient parameter data signals correlated to the at least one patient parameter,wherein the supervisory controller is operably connected to the monitor, the supervisory controller;

    receiving the flow rate data signals and patient parameter data signals,analyzing the flow rate data signals utilizing fuzzy logic having at least one supervisory rule and a width of at least one membership function in the fuzzy logic dependent upon a desired ultrafiltration rate, andproviding an output signal for the at least one pump to adjust, as necessary, on a periodic basis, the flow rate of liquid generated by the pump for regulating fluid removal from the patient'"'"'s blood.

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