Telemedicine system

• US 6,820,057 B1
• Filed: 05/28/1999
• Issued: 11/16/2004
• Est. Priority Date: 11/29/1996
• Status: Expired due to Term

• Current Assignee: Heartware,Inc. (Medtronic Plc), HeartWare Pty Ltd. (Medtronic Plc), Thoratec LLC
• Original Assignee: Ventracor Limited
• Inventors: Fitzgerald, James Edward, Barnett, Kim Norman, Loch, Andrew, Satchwell, Bruce Richard
• Primary Examiner(s): Rimell, Sam
• Application Number:
  US09/319,392
• Time in Patent Office: 1,999 Days
• Field of Search: 705/1, 705/2, 705/3, 705/4, 600/300, 600/512, 600/513, 128/903, 128/904, 707/104.1
• US Class Current: 705/2
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: G16H 10/60 for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: G16H 80/00 ICT specially adapted for facilitating communication between medical practitioners or patients, e.g. for collaborative diagnosis, therapy or health monitoring
• CPC Class Codes: H04M 11/002 with telemetering systems telemetering in general G08C
• CPC Class Codes: Y02A 90/10 Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Abstract

A method and system for communication of patient data acquired from a patient (13) involving the use of a predetermined communications protocol (48, 49, 50) whereby patient data is communicable from a patient location to an analysis location. In a preferred form, the patient data has appended to its supplementary data which can include address information and identity information.

Claims

1. A method of communication of patient physiological data acquired from a patient, said method including the steps of arranging a predetermined communications protocol whereby patient data is communicable from a patient location to an analysis location and implemented by a system which comprises at least the following components:

a) patient data acquisition apparatus which acquires said patient physiological data from said patient;

b) patient data transmission apparatus which transmits said data;

c) an interconnectable network of computers adapted for interconnection using standardized protocols and wherein the individual computers making up the network at any given time include computers adapted to store and forward packets of digital information and whereby the packets of information are thereby able to be passed from computer to computer until they reach a destination computer whose address is included as part of the packet and wherein said data is transmitted as said packets of information;

d) a patient data server for receiving said data, said server further including a physiological database table including physiological data flagged as real-time and control means for querying said database table; and

e) patient data storage and analysis apparatus for storing and presenting said data for analysis;

said method comprising the steps of;

i) acquiring said patient physiological data at said patient location by means of said patient data acquisition apparatus;

ii) transmitting said patient physiological data as said packets of information by means of said patient data transmission apparatus via said interconnectable network of computers to said patient data server and storing said ECG data at said server;

iii) processing a query for physiological data flagged as real-time; and

iv) passing said real-time data from said patient data server to said patient data storage and analysis via the same said interconnectable network of computers.

2. The method of claim 1, wherein said patient physiological data comprises a plurality of separate wave forms acquired consecutively over a period of days or weeks.

3. The method of claim 1, wherein said storage and analysis apparatus is implemented on a personal computer.

4. The method of claim 1, wherein said patient data transmission apparatus additionally includes supplementary data insertion means for inserting supplemental data into said patient physiological data.

5. The method of claim 1, wherein a unique identifier is given to each said patient data acquisition apparatus and to said data.

6. The method of claim 1, wherein a unique identifier is given to each said patient data storage and analysis apparatus and added to said data.

7. The method of claim 6, wherein said unique identifier is embedded in a software portion comprising part of said patient data storage and analysis apparatus.

8. The method of claim 1, wherein said patient data storage and analysis apparatus includes a personal computer arranged to execute a patient data storage and analysis program.

9. The method of claim 4, wherein said patient physiological data is encoded for transmission in a first format whilst supplementary data is encoded for transmission in a second format.

10. The method of claim 8, wherein said supplementary data comprises at least one of patient data or patient data acquisition apparatus identification data.

24. The method of claim 1, wherein said patient data transmission apparatus comprises a mobile telephone transmitting said patient physiological data.

25. The method of claim 1, wherein said interconnectable network of computers includes the Internet.

11. A system for communication of patient physiological data from a patient location to a remote storage and analysis location, said system comprising means for transmitting said patient physiological data on a predetermined signal encoded according to a predetermined protocol whereby said patient physiological data is communicable from said patient location to said analysis location;

said system further comprising;

a) patient data acquisition apparatus for acquiring said patient physiological data from said patient;

b) patient data transmission apparatus for transmitting said data;

c) an interconnectable network of computers adapted for interconnection using standardized protocols and wherein the individual computers making up the network at any given time include computers adapted to store and forward packets of digital information and whereby the packets of information are thereby able to be passed from computer to computer until they reach a destination computer whose address is included as part of the packet and wherein said data is transmitted as said packets of information;

d) a patient data server for receiving and transmitting said data, said server further including a physiological database table including physiological data flagged as real-time, and control means for querying said database table; and

e) patient data storage and analysis apparatus for storing and presenting said data for analysis;

said system containing computer readable media encoded to perform the steps of;

i) acquiring said patient physiological data at said patient location by means of said patient data acquisition apparatus;

ii) transmitting said patient physiological data as said packets of information by means of said patient data transmission apparatus via said interconnectable network of computers to said patient data server and storing said data at said server;

iii) processing a query for physiological data flagged as real-time; and

iv) passing said real-time data from said patient data server to said patient data storage and analysis apparatus via the same said interconnectable network of computers.

12. The system of claim 11, wherein said patient physiological data is transmitted as digitized packets.

13. The system of claims 12, further including a server computer adapted to receive said digitized packets of patient physiological data.

14. The system of claim 13, wherein said server computer is adapted to transmit program data and patient data in the form of digitized packets to a remote computer whereby said remote computer can execute said program data in order to display and/or interpret said patient data.

15. The system of claim 11, wherein patient physiological data is forwarded in preselected component parts and then stored for reassembly at said remote location for contiguous playback after reassembly.

16. The system of claim 11, wherein said predetermined signal includes said patient physiological data and supplementary data, said supplementary data comprising data pertaining to the circumstances of measurement of said clinical data.

17. The system of claim 16, wherein said supplementary data is digitally encoded in a wave form suitable for frequency modulation of a carrier tone in the audio range.

18. The system of claim 17, wherein said predetermined protocol includes a series of synchronization pulses which immediately precede and signal the presence of a signal containing said supplementary data.

19. The system of claim 11, wherein said predetermined signal comprises a modulated audio tone.

20. The system of claim 19, wherein said modulated audio tone is a frequency modulated (FM) audio tone.

21. The system of claim 11, wherein said predetermined protocol comprises direct modulation of an analogue wave form representing said patient data which is preceded by and recognized by a zero signal of predetermined duration.

22. The system of claim 11, wherein said patient physiological data comprises a plurality of separate ECG wave forms acquired consecutively over a period of days or weeks.

23. The system of claim 11, wherein said patient data transmission apparatus comprises a mobile telephone transmitting said patient physiological data.

26. The method of claim 11, wherein said interconnectable network of computers is the Internet.