Wireless electrocardiographic monitoring system
First Claim
1. A wireless electrocardiographic monitoring system for displaying detected heart-signals, said system including:
- right arm, left arm, right leg and left leg electrodes for attachment to the indicated limbs of a patient;
right arm heart-signal transmitting means electrically couplable to said right arm electrode for radiating a signal corresponding to the heart-signal at said right arm electrode;
left arm heart-signal transmitting means electrically couplable to said left arm electrode for radiating a signal corresponding to the heart-signal at said left arm electrode;
left leg heart-signal transmitting means electrically couplable to said left leg electrode for radiating a signal corresponding to the heart-signal at said left leg electrode;
a plurality of signal receiving means, one each for receiving and detecting said radiated heart-signals from said left arm, right arm and left leg electrodes, respectively, to individually produce a received left arm heart-signal, a received right arm heart-signal and a received left leg heart-signal;
means for combining said individually received left arm, right arm and left leg heart-signals to produce a reference potential;
reference potential transmitting means coupled to said combining means for transmitting said reference potential;
right leg signal receiving means electrically couplable to said right leg electrode for receiving said reference potential and applying said reference potential to said right leg electrode;
a set of precordial electrodes for attachment to the chest of a patient;
a set of precordial heart-signal transmitting means each one electrically couplable to different ones of said precordial electrodes in said set for individually radiating signals corresponding to the heart-signal at respective ones of said precordial electrodes;
a set of precordial heart-signal receiving and detecting means, each one associated with a different one of said precordial heart-signal transmitting means for individually reproducing the heart-signals appearing at each of said precordial electrodes in said set;
signal display means;
means for coupling said detected heart-signals from said right arm, left arm and left leg electrodes and from said precordial electrodes to said signal display means; and
means for providing operating power for all of the foregoing.
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Abstract
An electrocardiographic monitoring system in which the heart-signal sensing electrodes are each coupled to the heart-signal monitor/recorder by respective wireless transmitters and corresponding respective receiving wireless receivers in a base unit, each transmitter-receiver combination operating (in the absence of an encoding system) at a separate radio frequency, a zero or reference signal being developed at the base unit and being used to modulate a signal transmitter at the base unit, such modulated signal being received and demodulated by a receiver carried by a right-leg electrode carried by the right leg of the patient.
248 Citations
23 Claims
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1. A wireless electrocardiographic monitoring system for displaying detected heart-signals, said system including:
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right arm, left arm, right leg and left leg electrodes for attachment to the indicated limbs of a patient; right arm heart-signal transmitting means electrically couplable to said right arm electrode for radiating a signal corresponding to the heart-signal at said right arm electrode; left arm heart-signal transmitting means electrically couplable to said left arm electrode for radiating a signal corresponding to the heart-signal at said left arm electrode; left leg heart-signal transmitting means electrically couplable to said left leg electrode for radiating a signal corresponding to the heart-signal at said left leg electrode; a plurality of signal receiving means, one each for receiving and detecting said radiated heart-signals from said left arm, right arm and left leg electrodes, respectively, to individually produce a received left arm heart-signal, a received right arm heart-signal and a received left leg heart-signal; means for combining said individually received left arm, right arm and left leg heart-signals to produce a reference potential; reference potential transmitting means coupled to said combining means for transmitting said reference potential; right leg signal receiving means electrically couplable to said right leg electrode for receiving said reference potential and applying said reference potential to said right leg electrode; a set of precordial electrodes for attachment to the chest of a patient; a set of precordial heart-signal transmitting means each one electrically couplable to different ones of said precordial electrodes in said set for individually radiating signals corresponding to the heart-signal at respective ones of said precordial electrodes; a set of precordial heart-signal receiving and detecting means, each one associated with a different one of said precordial heart-signal transmitting means for individually reproducing the heart-signals appearing at each of said precordial electrodes in said set; signal display means; means for coupling said detected heart-signals from said right arm, left arm and left leg electrodes and from said precordial electrodes to said signal display means; and means for providing operating power for all of the foregoing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A wireless electrocardiographic monitoring system for displaying detected heart-signals, said system including:
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right arm, left arm and left leg electrodes for attachment to the indicated limbs of a patient; right arm heart-signal transmitting means electrically couplable to said right arm electrode for transmitting a signal corresponding to the heart-signal at said right arm electrode; left arm heart-signal transmitting means electrically couplable to said left arm electrode for transmitting a signal corresponding to the heart-signal at said left arm electrode; left leg heart-signal transmitting means electrically couplable to said left leg electrode for transmitting a signal corresponding to the heart-signal at said left leg electrode; a plurality of signal receiving means, one each for receiving and detecting said transmitted heart-signals from said left arm, right arm and left leg electrodes to individually produce a received left arm heart-signal, a received right arm heart-signal and a received left leg heart-signal; network means for combining said individually received left arm, right arm and left leg heart-signals to produce bipolar heart leads; a set of precordial electrodes for attachment to the chest of a patient; a set of precordial heart-signal transmitting means, one each electrically couplable to different ones of said precordial electrodes in said set for individually transmitting signals corresponding to the heart-signal at respective ones of said precordial electrodes; a set of precordial heart-signal receiving and detecting means, each one associated with a different one of said precordial heart-signal transmitting means for individually reproducing the heart-signals appearing at each of said precordial electrodes in said set; means for providing operating power for all of the foregoing; and means for selectively providing said bipolar heart leads, said detected heart-signals from said right arm, left arm and left leg electrodes, and the signals from said precordial electrodes to be coupled to an electrocardiographic recorder. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification