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Method and apparatus for blood withdrawal and infusion using a pressure controller

  • US 20050230313A1
  • Filed: 06/17/2005
  • Published: 10/20/2005
  • Est. Priority Date: 11/02/2000
  • Status: Active Grant
First Claim
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1. A method for controlling blood flow through an extracorporeal circuit coupled comprising:

  • a. continuously withdrawing the blood from a withdrawal blood vessel in a patient into the extracorporeal circuit, processing the blood in the circuit, and infusing the processed blood into the patient in a continuous manner;

    b. detecting an occlusion which at least partially blocks the withdrawal of blood from the patient;

    c. interrupting the continuous step (a), and automatically and temporarily ceasing the withdrawal of the blood to after step (b), and d. resuming step (a) automatically after step (c) to resume withdrawal of the blood.

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