The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2008
Filed:
Feb. 11, 2003
James A. Mawhirt, Brooklyn, NY (US);
Ted Lee, Matawan, NJ (US);
Supinan R. Naphuket, Edison, NJ (US);
Charles E. Toms, Colonia, NJ (US);
Wai Law, Moorestown, NJ (US);
Catherine Cimini, Somerset, NJ (US);
James A. Mawhirt, Brooklyn, NY (US);
Ted Lee, Matawan, NJ (US);
Supinan R. Naphuket, Edison, NJ (US);
Charles E. Toms, Colonia, NJ (US);
Wai Law, Moorestown, NJ (US);
Catherine Cimini, Somerset, NJ (US);
International Technidyne Corporation, Edison, NJ (US);
Abstract
The apparatus and method for quickly measuring the hemoglobin content of a sample of blood uses a light reflectance measurement of the hemoglobin sample lysed in a membrane. The reflection is inversely proportional to hemoglobin concentration. A blood sample is loaded on to a nylon mesh and dispersed within a nylon membrane, both of which have been treated with a hemolyzing agent and surfactant, and air-dried. As soon as the blood sample contacts the reagent on the membrane, the red blood cells are lysed and the hemoglobin molecules are released and dispersed into the membrane by the action of surfactant. The hemoglobin apparatus emits light at 522 nm to the reflective surface of the membrane. The intensity of the reflected light is measured by a detector in less than 29 seconds. The intensity of the reflected light is converted to hemoglobin concentration, g/dL, or mmol/L by an interpolative comparison with stored reflection data indicative of known hemoglobin contents.