System and method for storing and providing patient-related data

• US 9,192,330 B2
• Filed: 02/27/2012
• Issued: 11/24/2015
• Est. Priority Date: 02/27/2012
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Lin, Andy S., Chen, Bo, Schlottau, Friso
• Primary Examiner(s): Winakur, Eric
• Assistant Examiner(s): Fardanesh, Marjan
• Application Number:
  US13/406,118
• Publication Number:
  US 20130225952A1
• Time in Patent Office: 1,366 Days
• Field of Search: 600310-344
• US Class Current: 1/1
• CPC Class Codes: A61B 2560/0475 Special features of memory means, e.g. removable memory cards
• CPC Class Codes: A61B 2562/04 Arrangements of multiple sensors of the same type
• 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 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/14553 specially adapted for cerebral tissue
• CPC Class Codes: A61B 5/6814 Head
• CPC Class Codes: A61B 5/7278 Artificial waveform generation or derivation, e.g. synthesising signals from measured signals A61B5/327 takes precedence
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick

Abstract

According to various embodiments, a regional oximetry sensor may include a light emitting element configured to emit light, a light detector configured to receive the light, and a memory device configured to store a baseline. The baseline stored by the memory device enables a regional oximetry monitor to display the baseline on a display of the regional oximetry monitor.

Claims

1. A regional oximetry system, comprising:

a regional oximetry sensor, comprising;

a light emitting element configured to emit light disposed on a tissue contacting surface of the regional oximetry sensor;

a first light detector and a second light detector each disposed on the tissue contacting surface and each configured to receive the light, wherein the first light detector is disposed at a first distance from the light emitting element and the second light detector is disposed at a second distance from the light emitting element, and wherein the first distance is greater than the second distance; and

a memory device configured to store a baseline; and

a regional oximetry monitor configured to be coupled to the regional oximetry sensor, wherein the regional oximetry monitor prompts a caregiver to provide an input that instructs the regional oximetry sensor to transmit the baseline from the memory device to the regional oximetry monitor when the regional oximetry monitor is coupled to the regional oximetry sensor;

the regional oximetry monitor comprises a processor configured to determine a plurality of regional oxygen saturation (rSO₂) measurements based at least in part on the received light over a period of time, and wherein the processor is configured to determine a baseline, wherein the baseline comprises an average rSO₂ value of the plurality of rSO₂ measurements over the period of time; and

wherein the regional monitor is configured to store the determined baseline in the memory device.

2. The system of claim 1, wherein the regional oximetry sensor is configured to retain the baseline in the memory device when the regional oximetry sensor is disconnected from the regional oximetry monitor or is removed from a patient.

3. The system of claim 1, wherein the regional oximetry monitor is configured to erase the baseline from the memory device of the regional oximetry sensor.

4. The system of claim 1, wherein the regional oximetry monitor determines an average of the plurality of rSO₂ measurements over the period of time when the baseline is transmitted from the regional oximetry sensor to the regional oximetry monitor and displays the average of the plurality of rSO₂ measurements on a display of the regional oximetry monitor.

5. The system of claim 1, wherein the regional oximetry sensor comprises a sensor removal device configured to detect removal or dislodging of the regional oximetry sensor from a patient, and label the detected removal or dislodging in the baseline.

6. The system of claim 1, wherein the memory device is configured to store a plurality of baselines, and wherein the regional oximetry monitor prompts the caregiver to select an appropriate one of the plurality of baselines when the regional oximetry monitor is coupled to the regional oximetry sensor.

7. The system of claim 1, wherein the regional oximetry monitor is configured to calculate a cerebral saturation value or a somatic saturation value based at least in part on the received light.

8. The system of claim 1, wherein the regional oximetry sensor is configured to store a timestamp associated with the baseline in the memory device.

9. The system of claim 8, wherein the regional oximetry sensor is configured to transmit the timestamp when the regional oximetry sensor transmits the baseline from the memory device to the regional oximetry monitor when the regional oximetry monitor is coupled to the regional oximetry sensor.

10. The system of claim 1, wherein the regional oximetry monitor is configured to calculate a cerebral saturation value or a somatic saturation value based at least in part on a difference between a first portion of light received by the first light detector and a second portion of light received by the second light detector.

11. A method, comprising:

emitting light from a light emitting element disposed on a tissue contacting surface of a regional oximetry sensor;

detecting a first portion of the light with a first light detector and a second portion of the light with a second light detector over a period of time, wherein the first and second light detectors are disposed on the tissue contacting surface of the regional oximetry sensor;

determining a plurality of regional oxygen saturation (rSO₂) measurements over the period of time based at least in part on the first and second portions of detected light;

storing the plurality of rSO₂ measurements in a memory device of the regional oximetry sensor;

coupling the regional oximetry sensor to a regional oximetry monitor;

reading, via circuitry of the regional oximetry monitor, the plurality of rSO₂ measurements from the memory device;

determining a baseline via the circuitry, wherein the baseline is an average of the plurality of rSO₂ measurements over the period of time; and

displaying the baseline on a display of the regional oximetry monitor.

12. The method of claim 11, wherein coupling the regional oximetry sensor to the regional oximetry monitor comprises prompting a caregiver for instructions related to whether to read the first plurality of rSO₂ measurements from the memory of the regional oximetry sensor.

13. The method of claim 11, comprising reading a second plurality of rSO₂ measurements from the memory of the regional oximetry sensor, wherein the second plurality of rSO₂ measurements are obtained by the regional oximetry sensor over a second period of time different from the first period of time, and displaying the second plurality of rSO₂ measurements on the display.

14. The method of claim 11, comprising erasing, via the circuitry, the first plurality of rSO₂ measurements from the memory of the regional oximetry sensor after reading the first plurality of rSO₂ measurements.

15. The method of claim 11, wherein coupling the regional oximetry sensor to the regional oximetry monitor comprises prompting a caregiver to select an appropriate plurality of rSO₂ measurements obtained over an appropriate time period from a plurality of rSO₂ measurements obtained over a plurality of time periods stored within the memory.

16. The method of claim 11, calculating, via the regional oximetry monitor, a cerebral saturation value or a somatic saturation value based at least in part on light received by the regional oximetry sensor.