Patent ID: 6409663
Filing Date: 2002-06-25
Classification: A61B

Abstract:
An apparatus for monitoring a vital status indicator of a biological material, comprising:a temperature sensor for sensing periodically a temperature of a biological material to be monitored for determining an indicator of a vital status of the biological material, said temperature sensor adapted to create a first electrical signal representative of the sensed temperature; a pressure sensor for sensing periodically a pressure of the biological material substantially contemporaneously with the sensing by the temperature sensor and adapted to create a second electrical signal representative of the sensed pressure; a signal transmitting pathway transmitting said first and second electrical signals to a signal receiver adapted to receive at least two of said first and second electrical signals for processing of the signals; an evaluator that compares the difference in the two first electrical signals representative of temperatures sensed at a first time and a second time with the difference in the two second electrical signals representative of the pressures sensed, determine the indicator of the vital status as a representative value indicative of the state of the biological material; and a reporter for communicating the indicator of the vital status of the biological material, whereby the vital status of the biological material can be monitored.