Section 2: Introduction, Features, And Specifications; Introduction; Measuring Point - Konica Minolta JM-103 User Manual

Introduction

To prevent kernicterus in newborn infants, it is very important to detect
jaundice in its early stages. The Jaundice Meter (JM-103) is a non-
invasive transcutaneous bilirubinometer. This hand-held device allows a
quick, non-invasive estimate of bilirubin concentration, to be used as an
aid for the management of jaundice in newborn infants. The
measurements are taken automatically when you place the instrument's
measuring probe against the forehead or sternum of the infant and press
it gently; the measured value is then displayed.
The Jaundice Meter (JM-103) measures the yellowness of the
subcutaneous tissue in infants through the detection of the optical
density difference at two wavelengths. It displays a measured value that
has been shown to correlate with serum bilirubin. The device is intended
for use in the hospital to assist clinicians in monitoring the status of
infants for the development of hyperbilirubinemia. The device is not
intended as a standalone for diagnosis of hyperbilirubinemia. It is to be
used in conjunction with other clinical signs and laboratory
measurements. Infants whose Jaundice Meter (JM-103) test results are
indicative of hyperbilirubinemia are evaluated by their doctor(s) for
appropriate patient management. Bilirubin levels should be confirmed
by other methods (e.g. serum bilirubin) prior to treatment
determinations.

Measuring Point

Measurements must be taken only on the infant's forehead or sternum
where a sufficient amount of blood is circulated. A possibility exists that
the bilirubin in the subcutaneous tissue may measure low for areas with
minimal blood flow or areas in which the subcutaneous tissue is subject
to keratinization.
The measuring points for this device include the forehead and the
sternum of the infant. Although correlation with serum bilirubin was
observed for both forehead and sternum measurements, the clinical
studies performed with the Jaundice Meter (JM-103) show consistently
better results with measurements taken at the sternum versus the
forehead.
Jaundice Meter (Model JM-103) User Manual (usr070rb)
Introduction, Features,
and Specifications
Section 2
Page 2 - 1