Integrated wireless patch for physiological monitoring

• US 8,718,742 B2
• Filed: 05/23/2008
• Issued: 05/06/2014
• Est. Priority Date: 05/24/2007
• Status: Active Grant

• Current Assignee: LifeSignals, Inc.
• Original Assignee: HMicro Inc.
• Inventors: Beck, James, Sattiraju, Venkateswara R., Niknejad, Ali M., Yun, Louis C., Lee, Randall, Magar, Surendar, Fisher, Lois M.
• Primary Examiner(s): Cohen, Lee S
• Application Number:
  US12/601,373
• Publication Number:
  US 20100317958A1
• Time in Patent Office: 2,174 Days
• Field of Search: 600391-393
• US Class Current: 600/393
• 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 system comprising:

a plane member;

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

a circuit on a second side of the plane member for providing signals over a wireless link, wherein the circuit comprises;

a plurality of amplifiers for simultaneously amplifying signals received from the electrodes, wherein each amplifier of said plurality detects differential signals from different pairs of electrodes of said plurality;

a plurality of filters 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,

wherein the plane member is folded over so the first side overlies the second side.

2. The system of claim 1 wherein the amplifiers detect differential signals from opposite pairs of electrodes.

3. The system of claim 1 which includes a multiplexer for receiving the signals from the plurality of filters and providing the signals to the analog to digital converter.

4. The system of claim 1 wherein a portion of the sensor system is disposable.

5. The system of claim 1 wherein a multiplexer is inserted between the plurality of electrodes and plurality of amplifiers.

6. The system of claim 1, wherein the plurality of electrodes are ECG electrodes.

7. The system of claim 6, wherein the amplifiers simultaneously detect differential signals from at least three pairs of electrodes.

8. The system of claim 6, wherein a stationary patient monitor or mobile device are configured to capture transmitted signals from said radio.