Heart monitor system
First Claim
1. A method of monitoring the coronary status of a patient permitted to undertake normal activities after a cardiac episode comprising the steps of:
- (a) attaching a set of electrodes to a patient after the cardiac episode to enable to undertake normal activities of life after the episode;
(b) forming a set of time dependent signals from the set of electrodes;
(c) correcting the signals for systematic errors;
(d) time multiplexing the signals;
(e) converting the multiplexed signals into digital values having a data rate;
(f) reducing the data rate while preserving patient cardiac condition in the reduced data rate;
(g) transmitting the reduced data rate patient cardiar condition;
(h) receiving at a central location the transmitted reduced data rate patient cardiac condition;
(i) wherein the steps of transmitting and receiving are limited by the pass band of a connective link between the patient and the central location;
(j) storing cardiac heart beat signal shape and condition data for the patient at the central location;
(k) electronically comparing the received reduced data rate patient cardiac condition with the stored coronary condition data to make a determination of patient cardiac condition departing from patient related cardiac heart beat signal shape; and
(l) electronically responding to the step of comparing to send to the patient a signal indicative of patient cardiac conditions or indicative that medical intervention has been sent.
1 Assignment
0 Petitions
Accused Products
Abstract
A medical facility after discharge of a cardiovascular patient, can remain in contact with the patient. The patient is provided with a multiple lead EKG terminal spread placed on the body, and the signals therefrom are collected and transmitted. They are transmitted to a remote central location. At the central location, the transmitted EKG data is analyzed. It is compared with normal EKG signals and signals captured in time from the same patient as part of the patient history. The evaluation is done through a neural network which forms an output signal automatically or through intervention of a cardiologist sending an alarm condition signal to the patient instructing the patient to get immediate treatment at the patient'"'"'s location or to otherwise go to a specific medical facility. Signal preparation includes providing EKG signals through a multiplexer, conversation into a digital data, removal of bias signals, stabilization of this EKG base line, compression and data transmission through a modulator. The receive signal is reconstructed to provide an EKG signal of the patient which is then evaluated in the neural network. As appropriate, transmitter/receiver repeater stations and synchronous satellites are used to convey these signals.
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Citations
44 Claims
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1. A method of monitoring the coronary status of a patient permitted to undertake normal activities after a cardiac episode comprising the steps of:
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(a) attaching a set of electrodes to a patient after the cardiac episode to enable to undertake normal activities of life after the episode; (b) forming a set of time dependent signals from the set of electrodes; (c) correcting the signals for systematic errors; (d) time multiplexing the signals; (e) converting the multiplexed signals into digital values having a data rate; (f) reducing the data rate while preserving patient cardiac condition in the reduced data rate; (g) transmitting the reduced data rate patient cardiar condition; (h) receiving at a central location the transmitted reduced data rate patient cardiac condition; (i) wherein the steps of transmitting and receiving are limited by the pass band of a connective link between the patient and the central location; (j) storing cardiac heart beat signal shape and condition data for the patient at the central location; (k) electronically comparing the received reduced data rate patient cardiac condition with the stored coronary condition data to make a determination of patient cardiac condition departing from patient related cardiac heart beat signal shape; and (l) electronically responding to the step of comparing to send to the patient a signal indicative of patient cardiac conditions or indicative that medical intervention has been sent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of detecting cardiovascular difficulties with a patient having a history of such difficulties and the method comprises the steps of:
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(a) obtaining EKG data of the patient at the time of difficulties; (b) obtaining EKG data representing a set of cardiovascular difficulties indicated by EKG signals; (c) transmitting EKG data from the patient from a remote location so that the patient EKG data is provided dynamically and with movement of the patient; (d) processing the dynamic EKG data from the patient through a neural network dynamically with transmission of said EKG data representing a set of cardiovascular difficulties; and (e) determining from said processing the presence of a cardiovascular alarm condition and signaling the patient to seek medical assistance. - View Dependent Claims (24, 25, 26, 27, 28)
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29. A method of monitoring the coronary status of a patient permitted to undertake normal activities after a cardiac episode comprising the steps of:
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(a) attaching a set of electrodes to a patient after the cardiac episode to enable the patient to undertake normal activities of life after the episode; (b) forming time dependent signals from the set of electrodes; (c) time multiplexing the signals; (d) digitizing the multiplexed signals at a selected data rate; (e) reducing the data rate while preserving patient cardiac condition in the reduced data rate; (f) transmitting the reduced data rate patient cardiac condition; (g) receiving at a central location the transmitted reduced data rate patient cardiac condition; (h) wherein (i) the steps of transmitting and receiving are limited by the pass band of a connective link between the patient and the central location "(ii) the number of electrodes connected to the patient is N, and N is a whole number integer, and the number of signals actually transmitted from the electrodes is N or less, and". (iii) the number N remains unaltered while the signals actually transmitted are changed dependent on the medical conditions of the patient; (i) evaluating the received reduced data rate patient cardiac condition to dynamically make a determination of patient cardiac condition departing from patient related cardiac heart beat signal shape; and (j) electronically responding to the step of evaluating to send to the patient a signal indicative of patient coronary conditions or indicative that medical intervention has been initiated. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification