System and method for storing and providing patient-related data

• US 9,775,547 B2
• Filed: 11/03/2015
• Issued: 10/03/2017
• 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:
  US14/931,393
• Publication Number:
  US 20160051172A1
• Time in Patent Office: 700 Days
• Field of Search: None
• 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 sensor, comprising:

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

a first light detector and a second light detector each disposed on the tissue contacting surface and each configured to detect 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;

a memory device; and

processing circuitry associated with the memory device, wherein the processing circuitry is configured to;

determine a baseline based at least in part on the detected light, wherein the baseline comprises a plurality of rSO₂ measurements of a patient obtained by the regional oximetry sensor over a period of time, and wherein the plurality of rSO₂ measurements are based at least in part on the detected light;

store the baseline within the memory device;

transmit the baseline to a display of a regional oximetry monitor when the regional oximetry sensor is coupled to the regional oximetry monitor;

detect removal or dislodging of the regional oximetry sensor from the patient; and

label the baseline with a timestamp associated with the detected removal or dislodging of the regional oximetry sensor from the patient and store the labeled baseline within the memory device.

2. The sensor of claim 1, wherein the processing circuitry is configured to determine an average rSO₂ value of the plurality of rSO₂ measurements obtained by the regional oximetry sensor over the period of time.

3. The sensor of claim 1, wherein the processing circuitry 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 the patient.

4. The sensor of claim 1, wherein the processing circuitry is configured to store a plurality of timestamps associated with the plurality of rSO₂ measurements in the memory device.

5. The sensor of claim 1, wherein the processing circuitry is configured to store a plurality of baselines over a plurality of time periods.

6. The sensor of claim 5, wherein the regional oximetry monitor prompts the caregiver to select a desired baseline of the plurality of baselines when the regional oximetry monitor is coupled to the regional oximetry sensor.

7. The sensor of claim 5, wherein the processing circuitry is configured to store a plurality of timestamps with each of a plurality of baselines stored in the memory device.

8. The sensor of claim 1, wherein the processing circuitry is configured to calculate a cerebral saturation value or a somatic saturation value based at least in part on the received light.

9. The sensor of claim 1, wherein the processing circuitry is configured to associate a patient identification code with the baseline to correctly identify the patient from among a plurality of patients.

10. 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 detector and a second portion of the light with a second detector, wherein the first and second detectors are disposed on the tissue contacting surface of the regional oximetry sensor, 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;

determining a baseline comprising a plurality of regional oxygen saturation (rSO₂) measurements over a period of time, wherein the plurality of rSO₂ measurements are based at least in part on the first and second portions of detected light, and wherein the baseline comprises an average rSO₂ value of the plurality of rSO₂ measurements over the period of time; and

transmitting the baseline to a display of a first regional oximetry monitor when the regional oximetry sensor is coupled to the first regional oximetry monitor.

11. The method of claim 10, comprising removing or dislodging the regional oximetry sensor from the patient and uncoupling the regional oximetry sensor from the first regional oximetry monitor.

12. The method of claim 11, comprising labeling the baseline with a timestamp associated with the detected removal or dislodging of the regional oximetry sensor from the patient and storing the labeled baseline within the memory device.

13. The method of claim 12, comprising transmitting the labeled baseline to a second regional oximetry monitor when the second regional oximetry monitor is coupled to the regional oximetry sensor.

14. The method of claim 10, comprising displaying the baseline on a display of the regional oximetry when the regional oximetry sensor is coupled to the first regional oximetry monitor.

15. The method of claim 10, comprising determining a plurality of baselines over a plurality of periods of time.

16. The method of claim 15, comprising prompting a caregiver to select a desired period of time among the plurality of periods of time, and transmitting the baseline associated with the desired period of time to the first regional oximetry monitor.

17. The method of claim 10, comprising calculating a cerebral saturation value or a somatic saturation value based at least in part on the received light.

18. A system comprising:

a regional oximetry sensor, comprising;

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

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;

a memory device; and

first processing circuitry associated with the memory device, wherein the first processing circuitry is configured to;

determine a baseline based at least in part on the received light, wherein the baseline comprises a plurality of rSO₂ measurements of a patient obtained by the regional oximetry sensor over a period of time, and wherein the plurality of rSO₂ measurements are based at least in part on the detected light; and

store the baseline within the memory device; and

a regional oximetry monitor configured to be coupled to the regional oximetry sensor, wherein the regional oximetry monitor comprises;

second processing circuitry configured to receive the baseline from the regional oximetry sensor when the regional oximetry monitor is coupled to the regional oximetry sensor, and wherein the second processing circuitry is configured to display the baseline on a display of the regional oximetry monitor.

19. The system of claim 18, wherein the first processing circuitry is configured to retain the baseline within the memory device until the regional oximetry sensor is coupled to the regional oximetry monitor.

20. The system of claim 19, wherein the first processing circuitry is configured to erase the baseline from the memory device after the regional oximetry sensor is coupled to the regional oximetry monitor.