Abstract: A method of determining an accurate measure of blood pressure, the method including the steps of: initially measuring a patient's blood pressure measurement; determining a temperature measurement of the surrounds where the pressure measurement was obtained; and modifying or normalising the blood pressure measurement by a correction factor as determined by the temperature measurement.

Abstract: A method of monitoring the flow of a gas along a channel, the method including the steps of: Utilising at least a first ultrasonic transducer to project an alternating ultrasonic signal substantially transverse to the direction of gas flow and ultrasonic receivers to receive the signals; Sampling the ultrasonic signal after it traverses the gas flow; and Processing the sampled signal to determine properties of the gas and flow parameters relating thereto.

Abstract: A method of blood flow monitoring for a patient, the method comprising the steps of: a) receiving a first signal indicative of the real time cardiac output for the patient; b) processing the continuous wave Doppler signal to provide an estimate of blood flow velocity as a function of time; c) receiving a pressure measurement indicative of the blood flow resistance through the patient; and d) calculating an Inotropy measure indicative of the potential and kinetic energy of the cardiac output of the patient.

Abstract: A method of blood flow monitoring for a patient, the method comprising the steps of: a) receiving a first signal indicative of the real time cardiac output for the patient; b) processing the continuous wave Doppler signal to provide an estimate of blood flow velocity as a function of time; c) receiving a pressure measurement indicative of the blood flow resistance through the patient; and d) calculating an Inotropy measure indicative of the potential and kinetic energy of the cardiac output of the patient.

Abstract: A method of monitoring blood flows through the body includes performing a substantially continuous blood pressure monitoring of a vessel at a first predetermined location to obtain a substantially continuous blood pressure signal; performing blood flow monitoring of a vessel at a first predetermined location to obtain a substantially continuous blood flow signal; providing an updated cardiac measure of said patient by continuously processing the flow signal and the pressure signal.

Abstract: Described herein are systems and methods for determining the cardiac output of a patient. One such method includes measuring the patient's height and the velocity time integral or stroke distance of blood flowing from the heart of the patient, and subsequently utilising these measurements to determine the cardiac output of the patient based on a valve cross sectional area estimate.

Abstract: A method of tuning a cardiac prosthetic pacing device includes (a) monitoring the flow output from the heart, and (b) adjusting the timing of pacing events by the cardiac prosthetic pacing device so as to optimise the flow from the heart under operational conditions.

Abstract: A portable apparatus for conveying blood flow parameters to a user, the apparatus comprising: a transducer device for providing for Doppler monitoring of flows within a patient; a processing unit interconnected to the transducer unit and adapted to extract a blood flow signal from the operation of the transducer and process the blood flow signal so as to produce a video blood flow signal and an audio blood flow signal; a display unit interconnect to the processing unit for visualising the video blood flow signal; and at least one audio emission devices interconnected to the processing unit for emission of the audio blood flow signal to the ears of the user.

Abstract: A method and apparatus for defining cardiac time intervals using the pre-systolic diastolic filling period and the proceeding systolic period. The diastolic period can begin at the end of the T wave and terminate at the onset of the proceeding Q wave as defined in electrocardiograph signals. The systolic period can begin at onset of the Q peak and terminate at the end of the T wave as defined in electrocardiograph signals.

Abstract: An apparatus for measuring physiologic tissues perfusion information including: a first device producing a first output indicative of blood flow of a patient; a second device producing a second output indicative of oxygen content of the blood; and a processor combining said first and said second outputs to produce a third output indicative of tissue perefusion.

Abstract: A method of determining the cardiac output of an infant, the method comprising the steps of: (a) measuring the infant's weight; (b) measuring the velocity time integral and stroke distance of blood flowing from the heart of the patient; and (c) utilizing the two measurement in step (a) and step (b) to determine the cardiac output of the infant.

Abstract: A method of determining the cardiac output of a patient, the method comprising the steps of: (a) measuring the patients height; (b) measuring the velocity time integral or stroke distance of blood flowing from the heart of the patient, (c) utilising the two measurements in step (a) and (b) to determine the cardiac output of the patient.