Method and circuit for storing and providing historical physiological data

• US 8,000,760 B2
• Filed: 06/01/2006
• Issued: 08/16/2011
• Est. Priority Date: 08/31/2000
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Mallinckrodt Incorporated (Mallinckrodt plc)
• Inventors: Fein, Michael E., Mannheimer, Paul D.
• Primary Examiner(s): WINAKUR, ERIC FRANK
• Application Number:
  US11/445,110
• Publication Number:
  US 20070043273A1
• Time in Patent Office: 1,902 Days
• Field of Search: 600/323, 600/310, 600/322
• US Class Current: 600/323
• 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 storing an optical shunting measurement for the oximeter sensor.

Claims

1. An oximeter system, comprising:

an oximeter sensor, comprising;

a light emitting element configured to emit light;

a light detector configured to detect the light; and

a memory storing an optical shunting measurement for the oximeter sensor; and

an oximeter monitor, comprising;

a drive circuit configured to provide signals to circuitry of the oximeter sensor; and

a receiving circuit configured to receive data including the optical shunting measurement from the oximeter sensor, wherein the optical shunting measurement facilitates adjustment of a processing coefficient.

2. The system of claim 1, comprising a plurality of optical shunting measurements stored in the memory, the plurality of optical shunting measurements relating to a family of oximeter sensors.

3. An oximeter monitor, comprising:

a drive circuit configured to provide signals to circuitry of an oximeter sensor;

a circuit configured to receive an optical shunting measurement of the oximeter sensor from a memory of the sensor; and

an adjustment circuit configured to read processing coefficients from the oximeter sensor and adjust the processing coefficients based on the optical shunting measurement.

4. A method of monitor operation, comprising:

providing signals to circuitry of an oximeter sensor that is configured to couple to a patient;

receiving information from a memory of the oximeter sensor, the information comprising an optical shunting measurement for the oximeter sensor; and

reading processing coefficients from the oximeter sensor and adjusting the processing coefficients based on the optical shunting measurement.

5. The method of claim 4, comprising receiving a plurality of optical shunting measurements for a family of oximeter sensors.

6. An oximeter monitor, comprising:

a drive circuit configured to provide signals to circuitry of an oximeter sensor;

a circuit configured to receive an optical shunting measurement of the oximeter sensor from a memory of the sensor; and

an adjustment circuit configured to store processing coefficients and adjust the processing coefficients based on the optical shunting measurement.

7. A method of monitor operation, comprising:

providing signals to circuitry of an oximeter sensor that is configured to couple to a patient;

receiving information from a memory of the oximeter sensor, the information comprising an optical shunting measurement for the oximeter sensor; and

storing processing coefficients and adjusting the processing coefficients based on the optical shunting measurement.

8. The method of claim 7, comprising receiving a plurality of optical shunting measurements for a family of oximeter sensors.