Method for externally treating the blood
First Claim
1. A method for reducing the functioning population of a nucleated cell in the blood supply of a human subject, comprising the steps of:
- withdrawing blood from said subject, and irradiating said withdrawn blood with UV radiation in the presence of a dissolved photoactivated antibody specific for the nucleated blood cell and capable when activated by said UV radiation of forming photoadducts with the nucleated blood cell, to thereby effect chemical bonding between said photoactivated antibody and the nucleated cells, thereby creating irreversible complexes of said antibody and said nucleated blood cells; and
returning the irradiated blood to said subject.
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Accused Products
Abstract
A method and system are disclosed for externally treating human blood, with the objective of reducing the functioning lymphocyte population in the blood system of a human subject. According to the method, blood is withdrawn from the subject and passed throught an ultraviolet radiation field in the presence of from about 1 nanogram to 100 micrograms per ml of blood, of a dissolved photoactive agent capable of forming photo-adducts with lymphocytic-DNA, mobile cortisone receptors or antigen sites to thereby effect covalent bonding between the photoactive agent and the same, thereby inhibiting the metabolic processes of the lymphocytes or complexing them; and thereupon returning the irradiated blood to the subject. The withdrawn blood may be formed into an extracorporeal stream and flowed through a treatment station whereat the irradiation is effected, as for example by exposure to UV radiation; and such flow process may be conducted on a continuous basis. If desired, at least portions of the treated blood may then be separated, as for example by a continuous centrifuge, before returning the remaining diverted blood to the subject.
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Citations
19 Claims
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1. A method for reducing the functioning population of a nucleated cell in the blood supply of a human subject, comprising the steps of:
withdrawing blood from said subject, and irradiating said withdrawn blood with UV radiation in the presence of a dissolved photoactivated antibody specific for the nucleated blood cell and capable when activated by said UV radiation of forming photoadducts with the nucleated blood cell, to thereby effect chemical bonding between said photoactivated antibody and the nucleated cells, thereby creating irreversible complexes of said antibody and said nucleated blood cells; and
returning the irradiated blood to said subject.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 19)
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10. A method for reducing the functioning population of an immunogenic chemical in the blood supply of a human subject, comprising the steps of:
withdrawing blood from said subject, and irradiating said withdrawn blood with UV radiation in the presence of a dissolved photoactivated antibody specific for the immunogenic chemical and capable when activated by said UV radiation of forming photoadducts with said immunogenic chemical, to thereby effect chemical bonding between said photoactivated antibody and said immunogenic chemical, thereby creating irreversible complexes of said antibody and said immunogenic chemical; and
returning the irradiated blood to said subject.- View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
Specification