RESPIRATORY EVENT ALERT SYSTEM

• US 20120209084A1
• Filed: 01/20/2012
• Published: 08/16/2012
• Est. Priority Date: 01/21/2011
• Status: Abandoned Application

• Current Assignee: Masimo Corporation
• Original Assignee: Masimo Corporation
• Inventors: Olsen, Greg A., Weber, Phil
• Application Number:
  US13/355,404
• Publication Number:
  US 20120209084A1
• Time in Patent Office: Days
• US Class Current: 600/301
• CPC Class Codes: A61B 2562/0204 Acoustic sensors
• 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 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/4818 Sleep apnoea
• CPC Class Codes: A61B 5/68335 including release sheets or liners
• CPC Class Codes: A61B 5/7221 Determining signal validity, reliability or quality A61B5/7207 and A61B5/7217 take precedence
• CPC Class Codes: A61B 5/7282 Event detection, e.g. detecting unique waveforms indicative of a medical condition A61B5/4094, A61B5/4818, A61B5/349, A61B5/0823 take precedence
• CPC Class Codes: A61B 5/743 Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
• CPC Class Codes: A61B 7/003 Detecting lung or respiration noise
• CPC Class Codes: A61B 7/04 Electric stethoscopes microphones, acoustic transducers therefor H04R

Abstract

A respiratory monitoring system can include an acoustic respiratory sensor that obtains acoustic information from a patient and one or more processors in communication with the acoustic respiratory sensor. Such processors can receive a respiratory rate value derived from the acoustic information. This respiratory rate value can reflect an averaged set of respiratory rate values over a period of time. The one or more processors can also receive an indication of a respiratory abnormality that occurred during the same time period. Further, the one or more processors can output the averaged respiratory rate value together with a respiratory event indicator reflecting the respiratory abnormality.

Claims

1. A respiratory monitoring system for indicating respiratory abnormalities on a physiological monitor display, the system comprising:

an acoustic respiratory sensor configured to obtain acoustic information from a patient, the acoustic information reflecting one or more physiological parameters of the patient; and

one or more processors in communication with the acoustic respiratory sensor, the one or more processors configured to;

receive a respiratory rate value, the respiratory rate value reflecting a respiratory measurement obtained from the acoustic information averaged over a time period,

receive an indication of a respiratory abnormality occurring during the time period, and

output the respiratory rate value together with a discrete respiratory event indicator reflecting the respiratory abnormality.

2. The respiratory monitoring system of claim 1, wherein the respiratory rate value does not directly indicate an occurrence of the respiratory abnormality.

3. The respiratory monitoring system of claim 1, wherein the respiratory abnormality reflects an apnea or hypopnea event.

4. The respiratory monitoring system of claim 1, wherein the respiratory event indicator further reflects a severity of the respiratory abnormality.

5. The respiratory monitoring system of claim 4, wherein a shape of the respiratory event indicator is configured to reflect a severity of the respiratory abnormality.

6. The respiratory monitoring system of claim 4, wherein the respiratory event indicator is further configured to indicate a calculated confidence in detecting the respiratory abnormality.

7. The respiratory monitoring system of claim 1, wherein the one or more processors are further configured to receive physiological information from one or more additional physiological sensors coupled with the patient, the physiological information reflecting the respiratory abnormality.

8. The respiratory monitoring system of claim 7, wherein the one or more processors are further configured to adjust a configuration of the respiratory event indicator responsive to the physiological information.

9. The respiratory monitoring system of claim 8, wherein the physiological information comprises one or more values for one or more of the following physiological parameters:

oxygen saturation, hemoglobin, and plethysmograph variability.

10. The respiratory monitoring system of claim 1, wherein the one or more processors are further configured to cause display of additional detail regarding the indication of the respiratory abnormality in response to user input.

11. A method for indicating respiratory abnormalities on a physiological monitor display, the method comprising:

by one or more processors;

receiving a respiratory rate value from a respiratory rate calculator, the respiratory rate value corresponding to respiration of a patient averaged over a time period, such that the respiratory rate value does not directly indicate abnormal respiration in the patient;

outputting the respiratory value on a physiological monitor display for presentation to a clinician;

receiving an indication of a respiratory abnormality occurring during the time period; and

outputting an indicator reflecting the respiratory abnormality on the physiological monitor display.

12. The method of claim 11, wherein the respiratory abnormality reflects a respiratory pause.

13. The method of claim 11, wherein the respiratory abnormality reflects one or more of the following conditions:

apnea, hypopnea, dyspnea, bradypnea, obstruction, wheezing, striders, and ronchi.

14. The method of claim 11 further comprising indicating a confidence in an occurrence of the respiratory abnormality.

15. The method of claim 14, wherein said indicating the confidence comprises indicating a relatively higher confidence in response to receiving additional physiological information that further reflects the respiratory abnormality.

16. The method of claim 15, wherein the additional physiological information comprises oxygen saturation information.

17. The method of claim 15, wherein the additional physiological information comprises hemoglobin information.

18. The method of claim 11, further comprising generating the indicator to further reflect a length of the respiratory abnormality.

19. The method of claim 11, further comprising generating the indicator to further reflect a severity of the respiratory abnormality.

20. The method of claim 11, wherein the indicator reflects one or more of the following:

a length of the respiratory abnormality, a severity of the respiratory abnormality, and a confidence in occurrence of the respiratory abnormality.

21. The method of claim 11, wherein said outputting the indicator comprises superimposing the indicator over a trend graph reflecting the respiratory rate value.