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Three phase irradiation treatment process

  • US 4,573,960 A
  • Filed: 10/29/1984
  • Issued: 03/04/1986
  • Est. Priority Date: 10/29/1984
  • Status: Expired due to Term
First Claim
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1. In a system for altering cells including treating the cells with a photoactivatable reagent and irradiating said cells and reagent whereby said reagent is caused to be activated and to affect said cells, a three phase method for so treating the blood of a patient comprising the steps of:

  • in a first phase,collecting with a collection tubing set, whole blood from a patient having previously been given a pharmaceutically effective amount of a photoactivatable agent;

    passing said whole blood into a continuous centrifuge for obtaining plasma and a leukocyte enriched portion;

    storing a predetermined volume of said plasma and said leukocyte enriched portion;

    returning nonleukocyte enriched portions and any excess plasma to said patient through said collection tubing set;

    disconnecting said patient from said collection tubing set;

    in a second phase,passing said stored leukocyte enriched portion through an irradiation tubing set, including an irradiation chamber for photoactivating said reagent, until a predetermined level of photoactivation has been achieved; and

    in a third phase,returning said irradiated leukocyte enriched portion to said patient through a return tubing set.

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