System And Method For Generating Corrective Actions Correlated To Medical Sensor Errors

• US 20100249551A1
• Filed: 03/31/2009
• Published: 09/30/2010
• Est. Priority Date: 03/31/2009
• Status: Abandoned Application

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Nellcor Puritan Bennett LLC (Medtronic Plc)
• Inventors: Miller, Mark C.
• Application Number:
  US12/415,520
• Publication Number:
  US 20100249551A1
• Time in Patent Office: Days
• US Class Current: 600/323
• CPC Class Codes: A61B 2560/0276 Determining malfunction
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/6843 Monitoring or controlling sensor contact pressure

Abstract

A system and method for determining physiological parameters of a patient as well as errors based on light transmitted through the patient. Based on the received light, a most likely type of error may be determined, as well as one or more most likely actions to be undertaken to correct the error. Both the error and the corrective actions to be undertaken may be displayed.

Claims

1. A pulse oximeter comprising:

a processor capable of determining if a signal received by the pulse oximeter corresponds generally to a detection error, and probabilistically determining a corrective action based at least in part upon the detection error.

2. The pulse oximeter, as set forth in claim 1, comprising a display capable of displaying an indication of the corrective action.

3. The pulse oximeter, as set forth in claim 1, wherein the processor comprises a neural network capable of determining if the signal generally corresponds to the detection error.

4. The pulse oximeter, as set forth in claim 1, wherein the processor comprises a neural network capable of determining a corrective action based at least in part upon the detection error.

5. The pulse oximeter, as set forth in claim 1, comprising memory capable of storing range data corresponding generally to the signal for use in probabilistically determining a correspondence between the signal and the detection error.

6. The pulse oximeter, as set forth in claim 1, wherein the processor is capable of computing a physiological parameter based at least in part upon the received signal.

7. A non-invasive medical device, comprising:

a sensor comprising;

a light emitting diode capable of transmitting electromagnetic radiation; and

a photodetector capable of detecting the electromagnetic radiation and generating electrical signals based at least in part upon the detected electromagnetic radiation; and

a monitor coupled to the sensor, wherein the monitor is capable of;

transforming the electronic signals into conditioned data based at least in part upon analog-to-digital conversion of the electronic signals and filtering of the electronic signals;

determining the signal state of the conditioned data, wherein the signal state of the conditioned data is based at least in part upon a condition of the sensor;

determining a most likely corrective action, wherein the corrective action corresponds to an alteration of the condition of the sensor.

8. The non-invasive medical device of claim 7, wherein the monitor is capable of determining a second most likely corrective action.

9. The non-invasive medical device of claim 8, wherein the monitor comprises a display capable of displaying an indication of the most likely corrective action and the second most likely corrective action.

10. The non-invasive medical device of claim 7, wherein the monitor comprises a neural network capable of determining a most likely condition of the sensor based at least in part upon a matrix of outcomes.

11. The non-invasive medical device of claim 7, wherein the monitor comprises a memory, wherein the memory is capable of storing range data corresponding to the conditioned data and corrective actions based at least in part upon the range data.

12. The non-invasive medical device of claim 11, wherein the monitor comprises inputs, wherein the inputs are capable of updating the range data and the corrective actions.

13. A method comprising:

receiving a signal in a pulse oximeter;

determining if the signal corresponds to an error; and

probabilistically determining a corrective action based at least in part upon the error.

14. The method of claim 13, comprising displaying an indication of the error.

15. The method of claim 13, comprising displaying an indication of the corrective action.

16. The method of claim 13, wherein determining if the signal corresponds to an error comprises transmitting the signal to a neural network capable of determining the error based at least in part on a matrix of outcomes.

17. The method of claim 16, wherein probabilistically determining a corrective action comprises determining the corrective action from a set of corrective actions wherein each corrective action corresponds to each outcome in the matrix of outcomes.

18. The method of claim 17, comprising updating the matrix of outcomes with manually inputted error information.

19. The method of claim 13, wherein determining if the signal corresponds to an error comprises comparing the signal with range data corresponding to expected values for the signal.

20. The method of claim 19, wherein probabilistically determining a corrective action corresponding to the error comprises determining the corrective action from a set of corrective actions corresponding to the range data.