A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
167/322
A61M 5/00 (2006.01) B67D 7/08 (2010.01) A01N 1/02 (2006.01) A61N 1/02 (2006.01)
Patent
CA 1218934
APPARATUS FOR DELIVERING A CONTROLLED DOSAGE OF A CHEMICAL SUBSTANCE ABSTRACT OF THE DISCLOSURE An apparatus delivers a dosage of a chemical substance preferably to a biological tissue in such a controlled manner that the concentration affecting the biological tissue is known at each and every point in time. The apparatus includes a plurality of vessels with each vessel containing a different concentration of the chemical substance. A valve has a plurality of inlets and a single outlet wherein each inlet is connected to a corresponding vessel. The biological tissue is preferably held within a chamber for treatment with the chemical substance. A pump positioned preferably between the valve and the biological tissue provides a trans port force for delivering the chemical substance to the tissue. The valve and the pump are controlled by a computer control system which determines which inlet of the valve is fluidly connected to the outlet for providing a preselected concentration of the chemical substance to the tissue such that the concentration of the chemical substance affecting the tissue is controlled at each and every point in time.
429439
Endotronics Inc.
Marks & Clerk
LandOfFree
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