Real-time electrocardiogram monitoring system and method, patch-type electrocardiograph, telecommunication apparatus

• US 8,483,809 B2
• Filed: 03/12/2009
• Issued: 07/09/2013
• Est. Priority Date: 03/27/2008
• Status: Active Grant

• Current Assignee: Keimyung University
• Original Assignee: Keimyung University
• Inventors: Kim, Yoon Nyun, Park, Hee Joon, Lee, Jyung Hyun, Jeon, Hyo Chan
• Primary Examiner(s): Dvorak, Linda
• Assistant Examiner(s): ANTISKAY, BRIAN MICHAEL
• Application Number:
  US12/935,000
• Publication Number:
  US 20110021902A1
• Time in Patent Office: 1,580 Days
• Field of Search: 600/372, 600/382, 600/384, 600386-393, 600508-509
• US Class Current: 600/509
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: A61B 5/333 Recording apparatus specially adapted therefor
• CPC Class Codes: A61B 5/6833 Adhesive patches
• CPC Class Codes: A61B 5/7203 for noise prevention, reduction or removal
• CPC Class Codes: A61B 5/7264 Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems neural networks per se G06N3/00; expert systems per se G06N5/00
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems

Abstract

The present invention relates to a real-time electrocardiogram monitoring system and method, a patch-type electrocardiograph and a telecommunication apparatus. The real-time electrocardiogram monitoring system includes: a patch-type electrocardiograph which is attached to a skin of a subject in the form of a patch, measures an electrocardiogram of the subject, and generates and transmits first electrocardiogram data of a first frame format for near-field transmission of the measured electrocardiogram signal; a relay-type communication device which receives the first electrocardiogram data from the patch-type electrocardiograph, extracts electrocardiogram data, and combines the extracted electrocardiogram with identification information of the subject to generate second electrocardiogram data of a second frame format for far-field transmission; a monitoring server which receives the second electrocardiogram data from the relay-type communication device, extracts the electrocardiogram data and the subject identification information, and classifies, stores and outputs in real time the electrocardiogram data based on the subject identification information; and a repository which classifies and stores the electrocardiogram data. The real-time electrocardiogram monitoring system further includes: a broadcasting server which relays the electrocardiogram stored by the monitoring server to a remote place; and a viewer which views the electrocardiogram data received from the broadcasting server.

Claims

1. A real-time electrocardiogram monitoring system comprising:

a patch-type electrocardiograph which is attached to a skin of a subject in the form of a patch-type form, configured to measure an electrocardiogram of the subject, and to generate and transmit first electrocardiogram data of a first frame format for near-field transmission of the measured electrocardiogram signal;

a relay-type communication device configured to receive the first electrocardiogram data from the patch-type electrocardiograph, to extract electrocardiogram data, and combine the extracted electrocardiogram with identification information of the subject to generate second electrocardiogram data of a second frame format for far-field transmission;

a monitoring server configured to receive the second electrocardiogram data from the relay-type communication device, to extract the electrocardiogram data and the subject identification information of the subject, to classify, to store and to output in real time the electrocardiogram data based on the subject identification information of the subject; and

a repository configured to classify and store the electrocardiogram data, wherein in response to receipt of requests by viewers of the electrocardiogram data, an authenticator is configured to perform a multilevel authentication to determine accessible class of the electrocardiogram data, the multilevel authentication specifying a different accessible class of viewer which is classified based on each of the viewers and a data selector that is configured to transmit only the electrocardiogram data upon detection of a successful authentication corresponding to each level of the multilevel authentication based on each of the viewers.

2. The real-time electrocardiogram monitoring system of claim 1, further comprising:

a broadcasting server configured to relay the electrocardiogram stored by the monitoring server to a remote place; and

to display the electrocardiogram data received from the broadcasting server.

3. The real-time electrocardiogram monitoring system of claim 1, wherein the patch-type electrocardiograph comprises:

an adhesive pad having three electrodes located on a single plane;

an analog signal processor configured to perform amplification and noise cancellation of the electrocardiogram signal input to the three electrodes;

a digital signal processor configured to convert an analog signal output from the analog signal processor into a digital signal and to process the electrocardiogram data into the first electrocardiogram data of the first frame format for near-field transmission; and

a UHF band transmitter configured to transfer the first electrocardiogram data in the near-field.

4. The real-time electrocardiogram monitoring system of claim 3, wherein the analog signal processor comprises:

an amplifier configured to receive and to amplify the electrocardiogram signal from the adhesive pad;

a band pass filter configured to separate a signal of power supply noise and a signal of respiration noise from the amplified electrocardiogram signal;

a noise canceller configured to receive the electrocardiogram signal and the signal of power supply noise and the signal of respiration noise and to cancel the signal of power supply noise and the signal of respiration noise from the electrocardiogram signal; and

a filter configured to eliminate signals out of a band of the electrocardiogram signal.

5. The real-time electrocardiogram monitoring system of claim 3, wherein the digital signal processor comprises:

an analog-to-digital converter configured to convert the electrocardiogram signal received from the analog signal processor into the electrocardiogram data; and

an encoder configured to generate the first electrocardiogram data of the first frame format by adding data indicating a beginning and an end to the electrocardiogram data.

6. The real-time electrocardiogram monitoring system of claim 1, wherein the relay-type communication device comprises:

a UHF band receiver configured to receive the first electrocardiogram data from the patch-type electrocardiograph;

a decoder configured to extract electrocardiogram data from the first electrocardiogram data;

a user interface to receive user input;

a transceiver configured to perform communication with the monitoring server located at a remote place; and

an encoder configured to generate the second electrocardiogram data of the second frame format by combining the electrocardiogram data and the subject identification information comprising one or more of subject information, device information and medical information through the user interface, and

to transmit the second electrocardiogram data to the monitoring server through the transceiver.

7. The real-time electrocardiogram monitoring system of claim 6, wherein the UHF band receiver comprises:

an omnidirectional UHF band antenna;

a low noise amplifier which amplifies a signal received through an omnidirectional band antenna; and

a surface acoustic wave filter configured to filter the amplified signal.

8. The real-time electrocardiogram monitoring system of claim 6, wherein the decoder comprises:

a bit separator configured to separate data for each string of bits from a received signal;

a frame comparator configured to compare a string of beginning bits, ending bits and electrocardiogram data bits from the data for each string of bits to a predetermined frame; and

a data extractor which extracts the electrocardiogram data if the string of bits matches the predetermined frame.

9. The real-time electrocardiogram monitoring system of claim 6, wherein the encoder is configured to generate the second electrocardiogram data of the second frame format including the subject identification information input from the user interface and electrocardiogram data, a beginning message and an ending message input from the decoder.

10. The real-time electrocardiogram monitoring system of claim 1, wherein the monitoring server comprises:

real-time display software configured to display the electrocardiogram data extracted from the second electrocardiogram data;

storage software configured to classify and to store the electrocardiogram data extracted from the second electrocardiogram data for each subject and each time; and

review software configured to output the stored electrocardiogram data.

11. The real-time electrocardiogram monitoring system of claim 10, wherein the storage software of the monitoring server comprises:

a patient checker and classifier configured to extract the identification information of the subject included in the second electrocardiogram data and to convert the identification information of the subject into unique identification information;

a data time and date checker configured to check data generation time and overlapping reception using time information included in the second electrocardiogram data; and

a data extractor configured to classify the second electrocardiogram data based on the unique identification information and the data generation time.

12. The real-time electrocardiogram monitoring system of claim 10, wherein the display software comprises:

a viewer parameter decider which decides display size and interval of the electrocardiogram data to be displayed based on a size of an entire window and the number of subjects;

a display controller configured to output the electrocardiogram data to a display based on the display size and interval of the electrocardiogram data decided in the viewer parameter decider; and

a data monitor configured to monitor the electrocardiogram data outputted in the display controller and to display electrocardiogram data, which are out of a prescribed range, on the display controller in a form of a pop-up.