A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/80
A61M 1/00 (2006.01)
Patent
CA 1301002
METHODS AND SYSTEMS FOR RETROGRADE PERFUSION IN THE BODY FOR CURING IT OF A DISEASE OR IMMUNE DEFICIENCY Abstract Catheter feedback methods and systems are disclosed for optimizing the infusion of a drug, such as a chemotherapeutic agent via retrograde perfusion through the venous side of the vascular network to a selectively determined portion of a solid tumor. Monitoring and regulatory capability are provided for controlling the outflow of the drug and thereby for controlling the dose rate, the duration of exposure of the drug, the leakage factor, and the level of systemic toxicity, all critical factors in the successful treatment of solid tumors. A feedback loop for practicing the method comprises two concentric balloon catheters capable of extensive maneuvering and selective placement within the venous drainage of the vascular system, creating a third in-vivo space for repeated perfusion of the selected portion of a diseased organ as often as desired, providing maximum exposure of the chemotherapy to the tumor with minimum exposure to any other portions of the patient's body. 11580/1/1-2-2/3
554813
Calderon Reynaldo
Riches Mckenzie & Herbert Llp
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