Apparatus for the Detection of Heart Activity
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Accused Products
Abstract
The invention relates to heart measurement and heart monitoring, in particular the measurement of mechanical heart activity, and includes a method and apparatus to using doppler radar to transmit an electromagnetic signal of a certain frequency into, and detect a reflected signal from out of, the chest of the individual, to processing the detected signal to produce an output signal representing the rate of change of the doppler signal associated with the reflected signal and to identify from the output signal a group of at least one characteristic point of the output signal, and further to calculate at least one parameter representative of heart activity, this calculation based on the at least one identified characteristic point. The apparatus provides a system for monitoring which is particularly suitable for use in the home and which does not require repeated use of impedance cardiograms which are inappropriate for use by untrained personnel.
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Citations
13 Claims
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2. (canceled)
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3. A wearable apparatus to detect mechanical heart activity of an individual using doppler radar, comprising:
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a transducer to transmit electromagnetic signals of a certain frequency into the chest of the individual, and to detect reflected signals from out of the chest, and to transmit a signal representative of the detected signal to a processing system, which system is arranged to use the received signal to calculate an output signal representing the rate of change of the doppler signal associated with the reflected signal, the rate of change with respect to time, identify from the output signal a group of at least one characteristic point of the output signal, and calculate at least one parameter representative of heart activity, the calculation based on the at least one identified characteristic point, wherein the apparatus comprises means for transmitting the signal representative of the detected signal wirelessly to a computer with a connection to the world wide web, wherein said computer is adapted to further transmit the signal representative of the detected signal through the world wide web to the processing system. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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4. A processing system, for receiving a signal transmitted from a wearable apparatus to detect mechanical heart activity of an individual using doppler radar, the system arranged to receive a signal representative of a reflected electromagnetic signal detected from out of the chest of an individual, and further arranged to:
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calculate an output signal representing the rate of change of the doppler signal associated with the reflected signal, the rate of change with respect to time, identify from the output signal a group of at least one characteristic point of the output signal, and calculate at least one parameter representative of heart activity, the calculation based on the at least one identified characteristic point, wherein the processing system is adapted to receive the signal representative of the detected signal through the world wide web from a computer with a connection to the world wide web, wherein said computer is adapted to receive the signal representative of the detected signal wirelessly from the wearable apparatus.
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5. (canceled)
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13-1. The method of claim 1, wherein the at least one parameter representative of heart activity is transmitted to a computer aided detection system designed to automatically monitor the individual'"'"'s health and output and alert in the event that the parameter indicates a deterioration in the individual'"'"'s condition.
Specification