Patent ID: 8140140
Filing Date: 2012-03-20
Classification: A61B,A61M,G01N

Abstract:
1. An apparatus for analyzing the composition of bodily fluid, the apparatus comprising: a fluid handling network including a patient end configured to maintain fluid communication with a bodily fluid in a patient; a pump unit in operative engagement with said fluid handling network, said pump unit having an infusion mode in which said pump unit is operable to deliver infusion fluid to said patient through said patient end, and a sample draw mode in which said pump unit is operable to draw a sample of said bodily fluid from said patient through said patient end; a spectroscopic analyzer positioned to analyze at least a portion of the sample; and a processor in communication with or incorporated into said spectroscopic analyzer, said processor configured to execute stored program instructions to obtain measurements of two or more properties of said sample when a first analyte and a second analyte in said sample have overlapping spectral features, wherein the program instructions are configured to cause the fluid analyzer to: wherein subjecting the at least a portion of the sample to the test comprises obtaining a single spectral characterization including the spectral features of both the first analyte and the second analyte.