SYSTEMS AND METHODS FOR A WIRELESS SENSOR PROXY WITH FEEDBACK CONTROL

• US 20100179391A1
• Filed: 01/15/2009
• Published: 07/15/2010
• Est. Priority Date: 01/15/2009
• Status: Abandoned Application

• Current Assignee: LifeSync Corporation
• Original Assignee: LifeSync Corporation
• Inventors: Turner, Gary D., Phelps, Mark Joseph, Quintanar, Felix Clarence II, Luck, Randall L.
• Application Number:
  US12/354,295
• Publication Number:
  US 20100179391A1
• Time in Patent Office: Days
• US Class Current: 600/301
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 2560/0271 using a remote monitoring unit
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes precedence
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/1495 Calibrating or testing of in-vivo probes
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: A61B 5/6838 Clamps or clips

Abstract

Systems and methods may be provided for wirelessly monitoring physiological vital signs. The systems and methods may include transmitting, from a local replication system via a wireless communications link, one or more stimulus signals to a remote signal acquisition subsystem that may be in communication with at least one remote sensor, where, responsive to the one or more stimulus signals, the at least one remote sensor is operable to generate one or more interrogation signals applied to a physiological system under test, where the at least one remote sensor may detect one or more response signal, where the one or more response signals may include a detected physiological system response to the one or more interrogation signals. The systems and methods may further include receiving, at the local replication system via the wireless communication link, the one or more response signals detected by the at least one remote sensor and transmitted from the remote signal acquisition subsystem, and where the one or more received response signals may be utilized as part of a feedback loop for controlling any subsequently transmitted stimulus signals.

Claims

1. A method of wirelessly monitoring physiological vital signs, comprising:

transmitting, from a local replication system via a wireless communications link, one or more stimulus signals to a remote signal acquisition subsystem that is in communication with at least one remote sensors wherein

responsive, to the one or more stimulus signals, the at least one remote sensor is operable to generate one or more interrogation signals applied to a physiological system under test, wherein

the at least one remote sensor detects one or more response signal, wherein

the one or more response signals comprise a detected physiological system response to the one or more interrogation signals,

receiving, at the local replication system via the wireless communication link, the one or more response signals detected by the at least one remote sensor and transmitted from the remote signal acquisition subsystem, wherein the one or more received response signals are utilized as part of a feedback loop for controlling any subsequently transmitted stimulus signals.

2. The method of claim 1, wherein the wireless communication link comprises a digital or analog link.

3. The method of claim 1, wherein the transmission and reception of the wireless communication link are operative with one or more of

(a) light waves;

(b) radio frequency waves;

(c) inductive coupling;

or

(d) capacitive coupling.

4. The method of claim 1, wherein the feedback loop for controlling the one or more stimulus signals utilizes the wireless communications link.

5. The method of claim 1, wherein the one or more received response signals are utilized for feedback in controlling the one or more stimulus signals.

6. The method of claim 1, wherein an event error code is reported if the communication link latency exceeds the time constant of the feedback loop or if any system parameters are out of pre-defined bounds.

7. The method of claim 1, wherein one or more calibration or identification signals received at the local replication system are replicated for communication with the local measurement system.

8. The method of claim 1, wherein the remote signal acquisition subsystem receives power via alternating line current, battery, inductive coupling, or by harvesting energy.

9. The method of claim 1, wherein the one or more received response or calibration signals at the local replication system are converted via an active replica of the physiological system under test and are in communication with the local measurement system.

10. The method of claim 1, wherein the remote sensor and the local monitoring system are operative with one or more of:

(a) pulse oximetry monitoring;

(b) respiration monitoring;

(c) side stream capnography monitoring;

(d) blood sugar monitoring;

(e) blood carbon monoxide monitoring;

or

(f) blood-pressure monitoring.

11. A system for wirelessly monitoring physiological vital signs, comprising:

a transceiver operable to transmit from a local replication system via a wireless communications link, one or more stimulus signals to a remote signal acquisition subsystem that is in communication with at least one remote sensor, wherein

the remote signal acquisition subsystem comprises a transceiver operable to receive the stimulus signals from the local replication system via the wireless communication s link,

responsive, to the one or more stimulus signals, the at least one remote sensor is operable to generate one or more interrogation signals applied to a physiological system under test, wherein

the at least one remote sensor detects one or more response signal, wherein

the one or more response signals comprise a detected physiological system response to the one or more interrogation signals,

a transceiver operable to transmit from the remote signal acquisition subsystem via a wireless communications link, one or more response signals to the local replication subsystem, wherein

the transceiver at the local replication subsystem is operable to receive, via the wireless communication link, the one or more response signals detected by the at least one remote sensor and transmitted from the remote signal acquisition subsystem, wherein the one or more received response signals are utilized as part of a feedback loop for controlling any subsequently transmitted stimulus signals.

12. The system of claim 11, wherein the wireless communication link comprises a digital or analog link.

13. The system of claim 11, wherein the transceivers operative for wireless communication with one or more of:

(a) light waves;

(b) radio frequency waves;

(c) inductive coupling;

or

(d) capacitive coupling.

14. The system of claim 11, wherein the feedback loop for controlling the one or more stimulus signals utilizes the wireless communications link.

15. The system of claim 11, wherein the one or more received response signals are utilized for feedback in controlling the one or more stimulus signals.

16. The system of claim 11, wherein an event error code is reported if the communication link latency exceeds the time constant of the feedback loop or if any of the system parameters are out of pre-defined bounds.

17. The system of claim 11 wherein the remote signal acquisition subsystem receives power via alternating line current, battery, inductive coupling, or by harvesting energy.

18. The system of claim 11 wherein the one or more received response signals at the local replication system are converted via an active replica of the physiological system under test and are in communication with the local measurement system.

19. The system of claim 11, wherein the remote sensor and the local monitoring system are operative with one or more of:

(a) pulse oximetry monitoring;

(b) respiration monitoring;

(c) side stream capnography monitoring;

(d) blood sugar monitoring;

(e) blood carbon monoxide monitoring;

or

(f) blood-pressure monitoring.

20. The system of claim 11 wherein calibration information read from the remote sensor is transmitted to the local replication system, and wherein the local replication system replicates the calibration information for reading by the local measurement system.