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Patient photopheresis treatment apparatus and method

  • US 4,578,056 A
  • Filed: 10/29/1984
  • Issued: 03/25/1986
  • Est. Priority Date: 10/29/1984
  • Status: Expired due to Term
First Claim
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1. Apparatus for use in a patient treatment system wherein blood, in contact with a photoactivatable reagent, is collected from said patient, centrifuged to provide a leukocyte enriched portion which is irradiated for activating said reagent, all portions including the irradiated portion being returned to said patient, said apparatus comprising:

  • infusion pump means for controlling the addition of anticoagulation agent means to said patient'"'"'s blood;

    receiving means for receiving an irradiation cassette adapted to provide said photoactivating irradiation;

    continuous centrifuge means for separating patient blood into at least a plasma portion and a leukocyte enriched portion, said centrifuge means including a revolution sensor for monitoring rotation;

    blood pump means for pumping blood from said patient to said centrifuge, said blood pump means including revolution counter means and having known pumping characteristics whereby blood volume pumped may be determined;

    central control means for regulating said infusion pump means, said receiving means, said continuous centrifuge means and said blood pump means whereby blood withdrawn from said patient, is contacted with said anticoagulant agent means, separated into a leukocyte enriched portion which, while in contact with said photoactivatable reagent, is irradiated prior to its return to the patient.

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