Alarm activated acoustic measuring signals for patient monitoring
First Claim
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1. A patient monitoring system for monitoring at least two physiological parameters of a patient, the system comprising:
- an electrocardiograph ECG which monitors the patient'"'"'s cardiac heart rate;
a second physiological parameter monitor which monitors values of a second physiological parameter of the patient;
an acoustic signal generator which generates acoustic signals;
a beep generator connected with the ECG monitor and the second physiological parameter monitor which generates a beep tone at a characteristic point in each cycle of said cyclic heart rate at a tone which varies in accordance with the monitored values of the second physiological parameter, the beep generator being connected with the acoustic signal generator to generate a series of beeps whose rate is indicative of the cyclic heart rate and whose tone is indicative of the monitored values of the second physiological parameter; and
,an alarm unit which causes a volume of the acoustic signal to change from switched off or a lower volume to a predefined higher acoustic volume in response to the monitored values of one or both of the second monitored physiological parameters or the monitored heart rate exceeding an alarm limit.
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Abstract
A system and a method for monitoring a physiological parameter of a patient providing a measurement-modulated acoustic signal (7) after/when a measurement value of the monitored physiological parameter exceeds an alarm limit.
25 Citations
12 Claims
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1. A patient monitoring system for monitoring at least two physiological parameters of a patient, the system comprising:
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an electrocardiograph ECG which monitors the patient'"'"'s cardiac heart rate; a second physiological parameter monitor which monitors values of a second physiological parameter of the patient; an acoustic signal generator which generates acoustic signals; a beep generator connected with the ECG monitor and the second physiological parameter monitor which generates a beep tone at a characteristic point in each cycle of said cyclic heart rate at a tone which varies in accordance with the monitored values of the second physiological parameter, the beep generator being connected with the acoustic signal generator to generate a series of beeps whose rate is indicative of the cyclic heart rate and whose tone is indicative of the monitored values of the second physiological parameter; and
,an alarm unit which causes a volume of the acoustic signal to change from switched off or a lower volume to a predefined higher acoustic volume in response to the monitored values of one or both of the second monitored physiological parameters or the monitored heart rate exceeding an alarm limit. - View Dependent Claims (2, 3, 4)
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5. A method for monitoring at least two physiological parameters of a patient and providing a measurement-modulated acoustic signal after/when a measurement value of the monitored physiological parameters exceeds an alarm limit, the method comprising:
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measuring a value of a first cyclic monitored physiological parameter; measuring a value of a second monitored physiological parameter; in response to a measured value of any physiological parameter exceeding an alarm limit, providing the measurement-modulated acoustic signal at a predefined high acoustic volume, the acoustic signal including a series of beeps whose rate varies in accordance with the measurement values of the first cyclic monitored physiological parameter and whose tone varies in accordance with the measurement values of the second monitored physiological parameter; and
,in response to no alarm limits being exceeded, reducing the acoustic volume of the measurement modulated acoustic signal to a low volume or switching the measurement-modulated acoustic signal off. - View Dependent Claims (6, 7, 8, 9)
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10. A patient monitoring system comprising:
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a signal modulator which receives a first measured physiological parameter value from at least a first physiological parameter monitor and provides an output signal whose pulse rate or tone is modulated with the first measured parameter value; an acoustic signal generated which converts the output signal from the signal modulator into a measurement modulated acoustic signal; and
,an alarm unit which causes the measurement-modulated acoustic signal to be provided constantly at a preselected high volume whenever and for as long as a measured physiological value exceeds its alarm limit and causes the measurement-modulated acoustic signal to be one of off or provided at a low volume whenever no measured physiologic value exceeds its alarm limit. - View Dependent Claims (11, 12)
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Specification