INTEGRATED WIRELESS PATCH FOR PHYSIOLOGICAL MONITORING

• US 20100317958A1
• Filed: 05/23/2008
• Published: 12/16/2010
• Est. Priority Date: 05/24/2007
• Status: Active Grant

• Current Assignee: LifeSignals, Inc.
• Original Assignee: HMicro Inc.
• Inventors: Niknejad, Ali M., Fisher, Lois M., Lee, Randall, Magar, Surendar, Sattiraju, Venkateswara R., Beck, James, Yun, Louis C.
• Granted Patent: US 8,718,742 B2
• Time in Patent Office: Days
• US Class Current: 600/391
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1486 using enzyme electrodes, e.g. with immobilised oxidase
• CPC Class Codes: A61B 5/282 Holders for multiple electrodes for introduction into the body A61B5/287
• CPC Class Codes: A61B 5/287 Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS]
• CPC Class Codes: A61B 5/291 for electroencephalography [EEG]
• CPC Class Codes: A61B 5/296 for electromyography [EMG]
• CPC Class Codes: A61B 5/30 Input circuits therefor
• CPC Class Codes: A61B 5/316 Modalities, i.e. specific diagnostic methods
• CPC Class Codes: A61B 5/369 Electroencephalography [EEG] devices for psychotechnics A61B5/16
• CPC Class Codes: A61B 5/389 Electromyography [EMG]

Abstract

A sensor system in accordance with the present invention comprises a plane member, a plurality of electrodes within the plane member, adapted to contact a human body to detect and monitor human generated voltages. The sensor can be applied to monitor a variety of applications relating to health, disease progression, fitness and wellness. Some of the specific applications include the monitoring of ECG, EEG, EMG, glucose, electrolytes, body hydration, dehydration, tissue state and wounds. Various aspects of the invention are shown by illustrating certain embodiments. Many other embodiments can be used to implement the invented schemes.

Claims

1. A sensor comprising:

a plane member; and

a plurality of electrodes within the plane member and adapted to contact a human body to detect and monitor human generated voltages.

2. The sensor of claim 1 wherein the plurality of electrodes comprises a contact electrode for a common connection and plurality electrodes for detecting and monitoring the human generated voltages.

3. The sensor of claim 1 wherein the electrodes are arranged in an array.

4. The sensor of claim 3 wherein the array is any of a circular array, a linear array, a hex pattern, a radial array, and a rectangular array.

5. The sensor of claim 1 wherein the sensor includes adhesive areas and non-adhesive areas.

6. The sensor of claim 1 wherein adhesive areas surround the plurality of electrodes and the non-adhesive areas separate at least a portion of the electrodes.

7. The sensor of claim 1 wherein the sensor comprises an application specific integrated circuit.

8. The sensor of claim 1 wherein the total area of the sensor is less than 200 cm².

9. The sensor of claim 1 wherein each electrode has an area that is less than 10 cm².

10. The sensor of claim 1 wherein the electrodes are measuring ECG signal.

11. The sensor of claim 1 wherein the electrodes are measuring one physiological signal.

12. The sensor of claim 1 wherein the electrodes are measuring multiple physiological signals.

13. The sensor of claim 1 wherein the sensor wirelessly communicates with a stationary patient monitoring device.

14. The sensor of claim 1 wherein the sensor communicates with a mobile device.

15. The sensor of claim 1 wherein the sensor processes on board clinical analysis algorithms.

16. The sensor of claim 1 wherein the sensor has a warning/output device.

17. The sensor of claim 1 wherein the sensor is integrated into a catheter, fluid bag, or container for a biological sample.

19. The sensor of claim 17 wherein the at least one pair of electrodes are located on non-adhesive areas and are separated by adhesive areas.

20. The sensor of claim 17 wherein the at least one pair electrodes are located in adhesive areas and are separated by non-adhesive areas.

18. A patch comprising:

a plane member;

an electrode adapted to contact a human body for providing a common connection; and

at least one pair of electrodes arranged in an array which are adapted to contact a human body to detect and monitor human generated voltages.

21. The sensor of claim 18 wherein the array is any of a circular array, a linear array, a hex pattern, a radial array, and a rectangular array.

22. A sensor system comprising:

a plane member;

a plurality of electrodes within the plane member and adapted to contact a human body to detect and monitor human generated voltages; and

a circuit for providing signals over a wireless link, wherein the circuit comprises;

an amplifier for amplifying signals received from the electrodes;

a filter for the signals;

an analog to digital converter (ADC) for converting the signals to digital signals;

a digital signal processor for processing the digital signals; and

a radio for wirelessly transmitting the digital signals.

23. The system of claim 22 wherein the amplifier detects differential signals from opposite pairs of electrodes.

24. The system of claim 22 wherein the amplifier comprises a plurality of amplifiers and the filter wherein comprises a plurality of filters, wherein each of plurality of amplifiers detects differential signals from opposite pairs of electrodes.

25. The system of claim 22 which includes a multiplexer for receiving the signals from the plurality of filters and providing the signals to the analog to digital converter.

26. The system of claim 22 wherein a portion of the sensor system is disposable.

27. The system of claim 22 wherein a multiplexer is inserted between the plurality of electrodes and plurality of amplifiers