Patent ID: 6771993
Filing Date: 2004-08-03
Classification: A61B

Abstract:
A method for calibrating a noninvasive detection unit including a window, the method comprising:determining whether there is a restricted period in effect; selecting an on-site or an alternative site measurement location based on whether a restricted period is in effect; withdrawing a sample of bodily fluid from a patient at the selected measurement location, the sample comprising at least one analyte; positioning the sample over the window; analyzing the analyte in the sample using the noninvasive detection unit and generating an invasive-measurement output representing a characteristic of the analyte; placing the window of the noninvasive detection unit in contact with the skin of the patient; analyzing the analyte in the tissue of the patient with the noninvasive detection unit; generating a noninvasive-measurement output representing the characteristic of the analyte; comparing the invasive-measurement output and the noninvasive-measurement output to estimate an error; and correcting the noninvasive-measurement output based on said error.