System and method for automatic detection of a plurality of SPO2 time series pattern types
The disclosed embodiments relate to pulse oximetry. An exemplary pulse oximeter comprises a probe that is adapted to be attached to a body part of a patient to create a signal indicative of an oxygen saturation of blood of the patient, and a processor that is adapted to receive the signal produced by the probe, to calculate an SPO2 value based on the signal, to detect a plurality of pattern types of SPO2 indicative of pathophysiologic events, and to produce an output indicative of a detected one of the plurality of pattern types.
1. A pulse oximeter, comprising:
a probe that is adapted to be attached to a body part of a patient to create a signal indicative of an oxygen saturation of blood of the patient; and
a processor that is adapted to receive the signal produced by the probe, to calculate an SPO2 value based on the signal, to detect a plurality of pattern types of SPO2 indicative of pathophysiologic events, to detect at least one SPO2 shape feature or value of a rise event of one of the pattern types of SPO2, and to recognize a condition of an arousal response failure based on the SPO2 shape feature or the value and produce a warning responsive to said recognizing.
2. The pulse oximeter recited in claim 1 , comprising a display that is adapted to provide a visual indication corresponding to the warning.
3. The pulse oximeter recited in claim 2 , wherein the visual indication comprises a text message.
4. The pulse oximeter recited in claim 1 , wherein at least one of the plurality of pattern types is indicative of a recovery failure.
5. The pulse oximeter recited in claim 1 , wherein at least one of the plurality of pattern types is indicative of a threshold failure.
6. The pulse oximeter recited in claim 1 , the SPO2 shape feature comprising an SPO2 peak value.
7. The pulse oximeter recited in claim 1 , the SPO2 shape feature comprising an SPO2 magnitude.
8. The pulse oximeter recited in claim 1 , the SPO2 shape feature comprising a magnitude of the rise event in relationship to a magnitude of a corresponding fall event.
9. The pulse oximeter of claim 1 , wherein the processor provides an output to initiate a therapeutic activity responsive to said recognizing.
10. The pulse oximeter of claim 9 , wherein the therapeutic activity comprises a reduction of administration of a medication to the patient.
11. The pulse oximeter of claim 9 , wherein the therapeutic activity comprises administration of a medication to the patient.
12. The pulse oximeter of claim 9 , wherein the therapeutic activity comprises stimulating the patient.
13. The pulse oximeter of claim 1 , wherein the processor provides an output to modify administration of a medication responsive to said recognizing.
14. A pulse oximeter, comprising:
a probe that is adapted to be attached to a body part of a patient to create a signal indicative of an oxygen saturation of blood of the patient; and
a processor that is adapted to receive the signal produced by the probe, to calculate an SPO2 value based on the signal, to detect a plurality of cluster pattern types of SPO2, to detect at least one SPO2 shape feature or value of a rise event of one of the pattern types of SPO2, and to recognize a condition of an arousal response failure based on the SPO2 shape feature or the value and produce a warning responsive to said recognizing.
15. The pulse oximeter recited in claim 14 , comprising a display that is adapted to provide a visual indication corresponding to the warning.
16. The pulse oximeter recited in claim 15 , wherein the visual indication comprises a text message.
17. The pulse oximeter recited in claim 14 , wherein the at least one cluster pattern type is indicative of a recovery failure.
18. The pulse oximeter recited in claim 14 , wherein the at least one of the plurality of pattern types is indicative of a threshold failure.
19. The pulse oximeter recited in claim 14 wherein the processor is adapted to calculate a plurality of sequential severity indices of the at least one cluster pattern type.
20. The pulse oximeter recited in claim 14 , wherein the processor is adapted to calculate a time series of severity indices of the at least one cluster pattern type.
21. The pulse oximeter recited in claim 14 , the SPO2 shape feature comprising an SPO2 peak value.
22. The pulse oximeter recited in claim 14 , the SPO2 shape feature comprising an SPO2 magnitude.
23. The pulse oximeter recited in claim 14 , the SPO2 shape feature comprising a magnitude of the rise event in relationship to a magnitude of a corresponding fall event.
24. A pulse oximeter, comprising:
a probe that is adapted to be attached to a body part of a patient to create a signal indicative of an oxygen saturation of blood of the patient; and
a processor that is adapted to receive the signal produced by the probe, to calculate an SPO2 value based on the signal, to detect a plurality of different cluster pattern types of SPO2, to detect at least one SPO2 shape feature or value of a rise event of one of the pattern types of SPO2, and to recognize a condition of an arousal response failure based on the SPO2 shape feature or the value and produce a warning responsive to said recognizing.
25. The pulse oximeter recited in claim 24 , comprising a display that is adapted to provide a visual indication corresponding to the warning.
26. The pulse oximeter recited in claim 25 , wherein the visual indication comprises a text message.
27. The pulse oximeter recited in claim 24 , wherein at least one of the plurality of cluster pattern types is indicative of a recovery failure.
28. The pulse oximeter recited in claim 24 , wherein at least one of the plurality of cluster pattern types is indicative of a threshold failure.
29. The pulse oximeter recited in claim 24 wherein the processor is adapted to calculate a plurality of sequential severity indices of at least one of the plurality of cluster pattern types.
30. The pulse oximeter recited in claim 24 , wherein the processor is adapted to calculate a time series of severity indices of at least one of the plurality of cluster pattern types.
31. The pulse oximeter recited in claim 24 , wherein the processor is adapted to determine an indication of severity of the detected cluster pattern type.
32. The pulse oximeter recited in claim 24 , wherein the processor is adapted to display an indication of severity of the detected cluster pattern type.
33. The pulse oximeter recited in claim 24 , wherein the processor is adapted to calculate a plurality of sequential severity indices of the detected cluster pattern type.
34. The pulse oximeter recited in claim 24 , wherein the processor is adapted to calculate a time series of severity indices of the detected cluster pattern type.
35. The pulse oximeter recited in claim 24 , the SPO2 shape feature comprising an SPO2 peak value.
36. The pulse oximeter recited in claim 24 , the SPO2 shape feature comprising an SPO2 magnitude.
37. The pulse oximeter recited in claim 24 , the SPO2 shape feature comprising a magnitude of the rise event in relationship to a magnitude of a corresponding fall event.
38. A method of monitoring a patient, comprising:
receiving a signal indicative of an oxygen saturation of blood of the patient;
calculating an SPO2 value based on the signal on a processor of a monitor;
detecting a plurality of pattern types of SPO2 indicative of pathophysiologic events suggestive of arousal response failure;
detecting at least one SPO2 shape feature or value of a rise event of one of the pattern types of SPO2;
recognizing, via a processor, a condition of the arousal response failure based on the SPO2 shape feature or the value; and
producing a warning responsive to said recognizing.
39. The method of claim 38 , wherein the SPO2 shape feature comprises an SPO2 peak value.
40. The method of claim 38 , wherein the SPO2 shape feature comprises an SPO2 magnitude.
41. The method of claim 38 , wherein the SPO2 shape feature comprises a magnitude of the rise event in relationship to a magnitude of a corresponding fall event.
42. The method of claim 38 , wherein the processor provides an output to initiate a therapeutic activity responsive to said recognizing.
43. The method of claim 42 , wherein the therapeutic activity comprises a reduction of administration of a medication to the patient.
44. The method of claim 42 , wherein the therapeutic activity comprises administration of a medication to the patient.
45. The method of claim 42 , wherein the therapeutic activity comprises stimulating the patient.
46. A method of monitoring a patient, comprising:
receiving a signal indicative of an oxygen saturation of blood of the patient;
calculating an SPO2 value based on the signal on a processor of a monitor;
detecting a plurality of cluster pattern types of SPO2 suggestive of arousal response failure;
detecting at least one SPO2 shape feature or value of a rise event of one of the pattern types of SPO2;
recognizing, via a processor, a condition of the arousal response failure based on the SPO2 shape feature or the value; and
producing a warning responsive to said recognizing.
47. The method of claim 46 , wherein the SPO2 shape feature comprises an SPO2 peak value.
48. The method of claim 46 , wherein the SPO2 shape feature comprises an SPO2 magnitude.
49. The method of claim 46 , wherein the SPO2 shape feature comprises a magnitude of the rise event in relationship to a magnitude of a corresponding fall event.
50. A method of monitoring a patient, comprising:
receiving a signal indicative of an oxygen saturation of blood of the patient;
calculating an SPO2 value based on the signal on a processor of a monitor;
detecting a plurality of different cluster pattern types of SPO2 suggestive of arousal response failure;
detecting at least one SPO2 shape feature or value of a rise event of one of the pattern types of SPO2;
recognizing, via a processor, a condition of the arousal response failure based on the SPO2 shape feature or the value; and
producing a warning responsive to said recognizing.
51. The method of claim 50 , wherein the SPO2 shape feature comprises an SPO2 peak value.
52. The method of claim 50 , wherein the SPO2 shape feature comprises an SPO2 magnitude.
53. The method of claim 50 , wherein the SPO2 shape feature comprises a magnitude of the rise event in relationship to a magnitude of a corresponding fall event.