Medical diagnostic and communication system

• US 7,548,787 B2
• Filed: 08/03/2005
• Issued: 06/16/2009
• Est. Priority Date: 08/03/2005
• Status: Expired due to Fees

• Current Assignee: Kamilo Feher
• Original Assignee: Kamilo Feher
• Inventors: Feher, Kamilo
• Primary Examiner(s): Evanisko, George R
• Assistant Examiner(s): PATTON, AMANDA K
• Application Number:
  US11/197,670
• Publication Number:
  US 20070032832A1
• Time in Patent Office: 1,413 Days
• Field of Search: 607/32, 607/59, 607/60
• US Class Current: 607/60
• CPC Class Codes: A61B 5/0015 characterised by features of the telemetry system
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: G16H 10/60 for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 15/00 ICT specially adapted for medical reports, e.g. generation or transmission thereof
• CPC Class Codes: H04B 1/1036 with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters H04B1/123 takes precedence; filter circuits H03H
• CPC Class Codes: H04B 1/69 Spread spectrum techniques
• CPC Class Codes: H04B 1/707 using direct sequence modulation
• CPC Class Codes: H04B 1/709 Correlator structure
• CPC Class Codes: H04B 2201/70715 with application-specific features
• CPC Class Codes: H04B 2201/70716 Quadrature
• CPC Class Codes: H04B 7/04 using two or more spaced independent antennas
• CPC Class Codes: H04B 7/18504 Aircraft used as relay or high altitude atmospheric platform
• CPC Class Codes: H04B 7/2628 using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] H04B7/2618 takes precedence
• CPC Class Codes: H04J 11/00 Orthogonal multiplex systems, e.g. using WALSH codesH04J13/00 takes precedence
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 27/2017 in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation H04L27/201 takes precedence
• CPC Class Codes: H04L 27/2071 in which the data are represented by the carrier phase, e.g. systems with differential coding
• CPC Class Codes: H04L 27/2627 : Modulators
• CPC Class Codes: H04L 27/2649 : Demodulators
• CPC Class Codes: H04L 5/0007 : the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/1453 : of modulation type
• CPC Class Codes: H04M 7/006 : Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04W 12/06 : Authentication
• CPC Class Codes: H04W 12/79 : Radio fingerprint
• CPC Class Codes: H04W 4/023 : using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 4/025 : using location based information parameters
• CPC Class Codes: H04W 4/90 : Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 64/00 : Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: H04W 88/06 : adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• 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

Cardiac stimulation device and wireless communication system, without magnetic detection or magnetic control of the heart pacemaker parameters, having leads for carrying stimulating pulses to and or from one or more electrodes located in a heart and a pulse generator configured to generate stimulation pulses. In certain embodiments and environments the heart pacemaker could operate in an emergency room, even during Magnetic Resonance Imaging (MRI) diagnostic studies.

A processor for connection of the stimulating pulses to and/or from one or more spread spectrum transmitter-receiver (T/R) circuits and/or from a signal processing network for receiving said stimulation pulses and for providing cross-correlated in-phase and quadrature-phase baseband signals. One or more modulators and demodulators for transmission and/or reception of one or more spread spectrum and/or cross-correlated signals.

Claims

1. An implantable cardiac stimulation and modulation system comprising:

a processor for processing stimulation pulses to and/or from one or more electrodes;

a signal processing network for receiving said stimulation pulses and for providing in-phase and quadrature-phase baseband signals;

a signal processing network for receiving said stimulation pulses and for providing a filtered baseband signal;

a selector for selecting between the in-phase and quadrature-phase baseband signals, the filtered signal, or both the in-phase and quadrature-phase baseband signals and the filtered signal; and

one or more modulators for modulating said selected signal.

2. The system of claim 1, further comprising a cross-correlator and transmit baseband filter for cross-correlating and filtering said in-phase and quadrature-phase baseband signals and a receiver and demodulator for receiving and demodulating a modulated signal, wherein said receiver and demodulator comprises an antenna for receiving said modulated signal and a receive baseband filter for receiving and filtering the demodulated signal and for providing cross-correlated in-phase and quadrature-phase filtered baseband signals wherein said receive baseband filter is mis-matched to said transmit baseband filter.

3. The system of claim 1, further comprising a Orthogonal Frequency Division (OFD) baseband processor for OFD processing said in-phase and quadrature-phase baseband signals.

4. The system of claim 1, further comprising a Orthogonal Frequency Division Multiplex (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) baseband processor for OFDM or OFDMA processing and a cross-correlator for cross-correlating and filtering said in-phase and quadrature-phase baseband signals.

5. The system of claim 1, further comprising a first amplifier operated in a first radio frequency (RF) band in a linearly amplified (LINA) mode and a second amplifier operated in a second radio frequency (RF) band, wherein the second RF band is different from the first RF band and said second amplifier is operated in a non-linearly amplified (NLA) mode, for amplification of said selected modulated signal.

6. The system of claim 1, further comprising a processor for receiving and processing multiple signals received from multiple locations and for generating from said received signals a processed position finder signal and for providing said processed position finder signal to said one or more modulators for signal modulation.

7. The system of claim 1, further comprising a first cross-correlator and a transmit baseband filter for generating cross-correlated in-phase and quadrature-phase processed filtered baseband signals, a processor, comprising a spread spectrum processor and a second cross-correlator, for generating cross-correlated in-phase and quadrature-phase processed spread spectrum signals and a processor comprising an orthogonal frequency division processor for generating a orthogonal frequency division processed signal from an input signal.

8. The system of claim 1, wherein said in-phase and quadrature-phase baseband signals comprise cross-correlated Orthogonal Frequency Division Multiplexed (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) baseband signals or cross-correlated Time Division Multiple Access (TDMA) baseband signals used in Global Mobile System (GSM) systems.

9. The system of claim 1, wherein said stimulation pulses to and/or from one or more electrodes are adapted to be connected to a heart patient who has a pacemaker.

10. The system of claim 1, further comprising a telemetry transmitter and telemetry receiver for transmission and reception of signals, wherein said telemetry signals are used by an authorized physician or other authorized health or emergency service provider to monitor or control the implantable cardiac stimulation device.

11. The system of claim 1, further comprising a transmitter for transmitting said selected signal and a receiver for receiving a received signal, wherein said received signal is for control of said implantable cardiac system.

12. A medical diagnostic and communication system comprising:

a processor for processing signals received from one or more medical diagnostic devices;

a first signal processing network for receiving said processed signals and for providing baseband signals having a first specified bit rate comprising a cross-correlator and transmit baseband filter for providing cross-correlated and filtered in-phase and quadrature-phase baseband signals;

a second signal processing network for receiving said processed signals and for providing baseband signals having a second specified bit rate;

a selector for selecting between the first specified bit rate signal, the second specified bit rate signal, or both the first specified bit rate signal and the second specified bit rate signal;

a modulator for receiving and modulating said selected signal; and

a receiver and demodulator for receiving and demodulating a modulated signal, wherein said receiver and demodulator comprises an antenna for receiving a modulated signal and a receive baseband filter for receiving and filtering the demodulated signal and for providing cross-correlated in-phase and quadrature-phase filtered baseband signals wherein said receive baseband filter is mis-matched to said transmit baseband filter.

13. The system of claim 12, further comprising a receiver for receiving processed location finding signals and a transmitter for transmitting said processed location finder signals.

14. The system of claim 12, further comprising electrodes connected to an implantable cardiac stimulation device.

15. The system of claim 12, further comprising a pacemaker, said pacemaker is adapted to be implanted in a patient.

16. The system of claim 12, further comprising a cardiac device and a telemetry transmitter and receiver for transmission and reception of signals, wherein said telemetry signals are for monitoring and controlling the cardiac device.

17. A medical diagnostic and communication system comprising:

a processor for processing signals received from one or more medical diagnostic devices;

a first signal processing network for receiving said processed signals and for providing baseband signals having a first specified bit rate;

a second signal processing network for receiving said processed signals and for providing baseband signals having a second specified bit rate;

a Orthogonal Frequency Division (OFD) baseband processor for OFD processing said first specified bit rate signal or said second specified bit rate signal;

a selector for selecting between the first specified bit rate signal, the second specified bit rate signal, or both the first specified bit rate signal and the second specified bit rate signal; and

a modulator for modulating said selected signal.

18. The system of claim 17, further comprising electrodes connected to a heart patient'"'"'s implantable cardiac stimulation device.

19. The system of claim 17, further comprising a Global Positioning System (GPS) receiver for receiving location finding signals and a transmitter for transmitting said location finder signals.

20. The system of claim 17, further comprising a cardiac device and a wireless transmitter and receiver for transmission and reception of signals, wherein said wireless signals are for monitoring and controlling the cardiac device.

21. A medical diagnostic and communication system comprising:

a processor for processing signals received from one or more medical diagnostic devices;

a first signal processing network for receiving said processed signals and for providing baseband signals having a first specified bit rate;

a second signal processing network for receiving said processed signals and for providing baseband signals having a second specified bit rate;

a Orthogonal Frequency Division Multiplex (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) baseband processor for OFDM or OFDMA processing and a cross-correlator for cross-correlating and filtering said first specified bit rate signal or said second specified bit rate signal;

a selector for selecting between the first specified bit rate signal, the second specified bit rate signal, or both the first specified bit rate signal and the second specified bit rate signal; and

a modulator for receiving and modulating said selected signal.

22. The system of claim 21, further comprising a Global Positioning System (GPS) receiver for receiving location finding signals and a transmitter for transmitting said location finder signals.

23. The system of claim 21, further comprising a transmitter for transmitting said selected signal and a receiver for receiving a received signal, wherein said received signal comprises a Global Positioning System (GPS) signal.

24. A medical diagnostic and communication system comprising:

a processor for processing signals received from one or more medical diagnostic devices;

a first signal processing network for receiving said processed signals and for providing baseband signals having a first specified bit rate;

a second signal processing network for receiving said processed signals and for providing baseband signals having a second specified bit rate;

a first cross-correlator and a transmit baseband filter for generating cross-correlated in-phase and quadrature-phase processed filtered baseband signals;

a processor, comprising a spread spectrum processor and a second cross-correlator, for generating cross-correlated in-phase and quadrature-phase processed spread spectrum signals;

a processor comprising an orthogonal frequency division processor for generating a orthogonal frequency division processed signal from an input signal;

a selector for selecting between the first specified bit rate signal, the second specified bit rate signal, or both the first specified bit rate signal and the second specified bit rate signal; and

a modulator for receiving and modulating said selected signal.

25. The system of claim 24, further comprising a Global Positioning System (GPS) receiver for receiving and processing GPS location finding signals and a transmitter for transmitting said processed location finder signals.

26. The system of claim 24, further comprising a pacemaker, said pacemaker is adapted to be implanted in a patient.

27. A medical diagnostic and communication system comprising:

a processor for processing signals received from one or more medical diagnostic devices;

a first signal processing network for receiving said processed signals and for providing baseband signals having a first specified bit rate;

a second signal processing network for receiving said processed signals and for providing baseband signals having a second specified bit rate, wherein said first specified bit rate signal or the second specified bit rate signal comprise cross-correlated in-phase and quadrature-phase baseband Orthogonal Frequency Division Multiplexed (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) baseband signals or cross-correlated in-phase and quadrature-phase filtered Time Division Multiple Access (TDMA) baseband signals used in Global Mobile System (GSM) systems;

a selector for selecting between the first specified bit rate signal, the second specified bit rate signal, both the first specified bit rate signal and the second specified bit rate signal; and

a modulator for receiving and modulating said selected signal.

28. The system of claim 27, further comprising a Global Positioning System (GPS) receiver for receiving and processing GPS location finding signals and a transmitter for transmitting said processed location finder signals.

29. The system of claim 27, further comprising electrodes connected to a heart patient'"'"'s implantable cardiac stimulation device.

30. The system of claim 27, further comprising a cardiac device and a telemetry transmitter and receiver for transmission and reception of signals, wherein said telemetry signals are for monitoring and controlling the cardiac device.

31. A medical diagnostic and communication system comprising:

a processor for processing signals received from one or more medical diagnostic devices;

a first signal processing network for receiving said processed signals and for providing baseband signals having a first specified bit rate, wherein said first specified bit rate signals comprise cross-con-elated in-phase and quadrature-phase filtered baseband signals;

a second signal processing network for receiving said processed signals and for providing baseband signals having a second specified bit rate, wherein said second specified bit rate signals comprise Orthogonal Frequency Division baseband signals;

a selector for selecting between the first specified bit rate signal, the second specified bit rate signal, or both the first specified bit rate signal and the second specified bit rate signal; and

one or more modulators for modulating said selected signal.

32. The system of claim 31, further comprising a cardiac stimulation device.

33. The system of claim 31, further comprising a Global Positioning System (GPS) receiver for receiving location finding signals and a transmitter for transmitting said location finding signals.

34. The system of claim 31, further comprising an implantable cardiac stimulation device and a telemetry transmitter and telemetry receiver for transmission and reception of signals, wherein said telemetry signals are for monitoring and/or controlling the implantable cardiac stimulation device.

35. An implantable cardiac stimulation and modulation method comprising the steps of:

processing cardiac stimulation pulses to and/or from one or more electrodes;

processing said stimulation pulses and for providing in-phase and quadrature-phase baseband signals;

processing said stimulation pulses and for providing a filtered baseband signal;

selecting between the in-phase and quadrature-phase baseband signal, the filtered signal, or both the in-phase and quadrature-phase baseband signals and the filtered signal; and

providing the selected signals for signal modulation.

36. The method of claim 35, further comprising the step of receiving a Global Positioning System (GPS) location finding signal, processing and transmitting said location finding signal.

37. The method of claim 35, further comprising the step of cross-correlating said in-phase and quadrature-phase baseband signals and providing said cross-correlated in-phase and quadrature-phase baseband signals.

38. The method of claim 35, further comprising the step of cross-correlating, filtering and spreading said in-phase and quadrature-phase baseband signals and providing one set of cross-correlated filtered spread spectrum in-phase and quadrature-phase baseband signals.

39. The method of claim 35, further comprising the step of obtaining from said one or more electrodes heart generated signals and processing said heart generated signals.

40. The method of claim 35, further comprising the step of processing said in-phase and quadrature-phase signals into Orthogonal Frequency Division Multiplex (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) signals.

41. The method of claim 35, further comprising the steps of transmitting said selected signals and receiving a received signal, wherein said received signal is for monitoring and/or controlling an implantable cardiac stimulation device.