Method and system for monitoring the physiological condition of a patient
First Claim
1. A system for monitoring of a patient'"'"'s physiological condition, comprising:
- means for measuring the mechanical activity of a patient'"'"'s body, including at least one means for detecting mechanical vibrations and transmitting the same to one or more sensing elements for converting the mechanical vibrations into electric signals;
means for transmitting said electric signals;
means for processing said electric signals and separating therefrom cardiac, respiration and body movement signals;
means for determining the pulse wave propagation rate from said electric signals;
means for determining characteristics and parameters of cardiac and respiratory cycles, from said cardiac and respiration signals, respectively as well as for storing and displaying at least a portion of said characteristics and parameters;
means for comparing at least one of said determined parameters with a predetermined parameter; and
means for actuating an alarm signal when said at least one of said determined parameters exceeds a preset range.
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Accused Products
Abstract
A system for the monitoring of a patient'"'"'s physiological condition, including a measuring device for measuring the mechanical activity of a patient'"'"'s body, including a module for detecting mechanical vibrations and transmitting same to a sensing element for converting the mechanical movements into electric signals. A device for transmitting the electric signals for processing the electric signals and separating from them cardiac, respiration and body movement signals. A device for measuring the pulse wave propagation rate. A device for determining the characteristics and derived parameters of cardiac and respiratory cycles, as well as for storing and displaying the data. A comparator for comparing parameters of the data with predetermined parameters and a device for actuating an alarm signal when signals of the data exceed a preset range.
308 Citations
20 Claims
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1. A system for monitoring of a patient'"'"'s physiological condition, comprising:
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means for measuring the mechanical activity of a patient'"'"'s body, including at least one means for detecting mechanical vibrations and transmitting the same to one or more sensing elements for converting the mechanical vibrations into electric signals; means for transmitting said electric signals; means for processing said electric signals and separating therefrom cardiac, respiration and body movement signals; means for determining the pulse wave propagation rate from said electric signals; means for determining characteristics and parameters of cardiac and respiratory cycles, from said cardiac and respiration signals, respectively as well as for storing and displaying at least a portion of said characteristics and parameters; means for comparing at least one of said determined parameters with a predetermined parameter; and means for actuating an alarm signal when said at least one of said determined parameters exceeds a preset range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20)
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18. A method of monitoring the physiological condition of a patient'"'"'s body, comprising the steps of:
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obtaining signals representing the mechanical activity and movement of the body from two or more detecting and sensing means not secured to the body and spaced apart from each other; removing signals associated with the movements of the body from the obtained signals; separating signals possibly associated with cardiac and/or respiratory activity from the obtained signals; determining propagation rates of the pulse waves of cardiac and respiration activities by determining the shift of the obtained cardiac and respiration signals; comparing the signals representing propagation rates with propagation rate signals obtained from an earlier measurement of the same body; removing those signals which are not characteristic of the wave propagation rates of said body; determining the cardiac and respiratory rhythm parameters from the remaining signals; comparing said parameters with parameters obtained from an earlier measurement of the same body, as well as with predetermined parameters; separating and removing parameters which differ from said predetermined parameters; storing, displaying and comparing the separated parameters with parameters obtained from said earlier measurements, and generating an alarm when one of the parameters exceeds a preset range.
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Specification