Method and circuit for storing and providing historical physiological data

• US 10,806,406 B2
• Filed: 10/26/2017
• Issued: 10/20/2020
• Est. Priority Date: 08/31/2000
• Status: Expired due to Term

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Mannheimer, Paul D., Fein, Michael E.
• Primary Examiner(s): Winakur, Eric F
• Application Number:
  US15/795,167
• Publication Number:
  US 20180042560A1
• Time in Patent Office: 1,090 Days
• CPC Class Codes: A61B 2562/085 combined with means for recording calibration data
• 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 5/02055 Simultaneously evaluating both cardiovascular condition and temperature
• CPC Class Codes: A61B 5/053 Measuring electrical impedance or conductance of a portion of the body
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/1495 Calibrating or testing of in-vivo probes
• CPC Class Codes: A61B 5/7232 involving compression of the physiological signal, e.g. to extend the signal recording period
• CPC Class Codes: A61B 5/74 Details of notification to user or communication with user or patient indicating measured values G01D7/00; user input means input or output arrangements for computers G06F3/00
• CPC Class Codes: G01D 18/00 Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
• CPC Class Codes: Y10S 323/911 Medical electronics

Abstract

Embodiments of the present invention include systems and methods that relate to pulse oximetry. Specifically, one embodiment includes an oximeter sensor comprising a light emitting element configured to emit light, a light detector configured to detect the light, and a memory chip having a built-in trimmed resistor, the trimmed resistor having a resistance value that is detectable by a monitor.

Claims

1. A device wearable by a patient, comprising:

an accelerometer configured to collect motion data indicative of a presence of patient motion;

a sensor configured to collect sensor data from the patient;

a processor configured to generate physiological data based at least in part on the motion data, the sensor data, or both;

at least one memory configured to store the physiological data; and

an interface configured to transmit at least some of the physiological data to a remote device, wherein the device is configured to operate independently from the remote device,

wherein the device is configured to store at least a portion of the physiological data in the at least one memory in response to the processor determining that the physiological data exceeds one or more alarm limits.

2. The device of claim 1, wherein the processor is configured to change an algorithm used to calculate the physiological data in response to the processor determining that the motion data indicates the presence of patient motion.

3. The device of claim 1, wherein the device is configured to provide a warning notification in response to the processor determining that the motion data indicates the presence of patient motion.

4. The device of claim 1, wherein the device is configured to receive the one or more alarm limits from the remote device.

5. The device of claim 1, wherein the one or more alarm limits are stored in the at least one memory.

6. The device of claim 1, wherein the one or more alarm limits are patient specific alarm limits.

7. The device of claim 1, wherein the sensor comprises at least one pulse oximeter sensor and the sensor data comprises a signal indicative of an oxygen saturation measurement.

8. The device of claim 1, comprising an adhesive layer configured to couple at least a portion of the device to the patient.

9. The device of claim 1, wherein the interface is configured to transmit at least some of the physiological data to the remote device in response to the processor determining that the physiological data exceeds the one or more alarm limits.

10. A device wearable by a patient, comprising:

a sensor configured to collect sensor data from the patient;

a processor configured to generate physiological data based in least in part on the sensor data, wherein the processor is configured to access one or more patient specific alarm limits and to determine whether the physiological data exceeds the one or more patient specific alarm limits; and

at least one memory configured to store the physiological data, wherein the device is configured to store the physiological data in the memory in response to the processor determining that the physiological data exceeds the one or more patient specific alarm limits.

11. The device of claim 10, comprising an interface configured to transmit at least some of the physiological data to a remote device, wherein the device is configured to operate independently from the remote device.

12. The device of claim 11, wherein the interface is configured to transmit at least some of the physiological data to the remote device in response to the processor determining that the physiological data exceeds the one or more patient specific alarm limits.

13. The device of claim 11, wherein the interface is configured to transmit at least some of the physiological data to the remote device in response to the device being coupled to the remote device.

14. The device of claim 10, wherein the one or more patient specific alarm limits are stored in the at least one memory, and the processor accesses the one or more patient specific alarm limits from the at least one memory.

15. The device of claim 10, further comprising an accelerometer configured to collect motion data indicative of a presence of patient motion.

16. The device of claim 15, wherein the processor is configured to generate the physiological data based at least in part on the motion data and the sensor data.

17. A device wearable by a patient, comprising:

a sensor configured to collect sensor data from the patient;

a processor configured to generate physiological data based in least in part on the sensor data; and

at least one memory configured to store the physiological data and one or more alarm limits, wherein the device is configured to store the physiological data in the memory in response to the processor determining that the physiological data exceeds the one or more alarm limits.

18. The device of claim 17, comprising an interface configured to transmit at least some of the physiological data to a remote device in response to the processor determining that the physiological data exceeds the one or more alarm limits.

19. The device of claim 17, comprising an accelerometer configured to collect data indicative of a presence of patient motion, and wherein the device is configured to provide a warning indication in response to the processor determining that the motion data indicates the presence of patient motion.