Method for respiration rate and blood pressure alarm management

• US 8,498,683 B2
• Filed: 04/30/2010
• Issued: 07/30/2013
• Est. Priority Date: 04/30/2010
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien Limited (Medtronic Plc)
• Inventors: Price, Thomas, Kadlec, Ron J.
• Primary Examiner(s): Laballe, Clayton E
• Assistant Examiner(s): Rhodes, Jr., Leon W
• Application Number:
  US12/771,859
• Publication Number:
  US 20110270058A1
• Time in Patent Office: 1,187 Days
• Field of Search: 600/324
• US Class Current: 600/324
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/02125 of pulse wave propagation time
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/726 using Wavelet transforms

Abstract

Embodiments of the present disclosure relate to display features that facilitate observation of monitored physiological data. According to certain embodiments, a monitoring system may include a monitor capable of receiving data related to the physiological parameters and storing data related to the parameters. The monitor may include a microprocessor capable of determining a respiration rate baseline from the data and establishing an alarm sensitivity for respiration rate based on the respiration rate baseline. The alarm sensitivity may comprise a first tier, a second tier, and a third tier. Each tier may correspond to a specific respiratory rate range and the alarm sensitivity may be selected based on which specific respiratory rate range encompasses the respiration rate baseline. Further, in certain embodiments a blood pressure baseline may be determined and an alarm sensitivity established based on the blood pressure baseline.

Claims

1. A method, comprising:

receiving input from a sensor relating to one or more physiological parameters and storing data related to the parameters;

determining a respiration rate baseline from the data; and

establishing an alarm sensitivity for respiration rate based on the respiration rate baseline, wherein the alarm sensitivity comprises a first tier corresponding to a low respiratory rate range, a second tier corresponding to a normal respiratory rate range, and a third tier corresponding to a high respiratory rate range, and the alarm sensitivity is selected based on which specific respiratory rate range encompasses the respiration rate baseline, wherein the alarm sensitivity relates to an acceptable percent shift of the respiration rate from the respiration rate baseline that if exceeded triggers an alarm, and the acceptable percent shift for at least one of the tiers is different from the acceptable percent shift of the other tiers.

2. The method of claim 1, comprising:

determining a respiration rate from the data; and

measuring a percent shift of the respiration rate from the respiration rate baseline.

3. The method of claim 2, comprising triggering the alarm if the percent shift exceeds the established alarm sensitivity.

4. The method of claim 3, comprising triggering the alarm when the respiration rate is within the normal respiratory rate range.

5. The method of claim 2, comprising triggering the alarm if the percent shift exceeds the established alarm sensitivity for a predetermined amount of time.

6. The method of claim 2, comprising readjusting the alarm sensitivity level.

7. The method of claim 1, wherein the data related to the parameters comprises pulse oximetry data.

8. The method of claim 1, wherein the low respiratory rate range comprises 6 breaths per minute and below, the normal respiratory rate range comprises 7 breaths per minute to 29 breaths per minute, and the high respiratory rage range ranges comprises 30 breaths per minute and above.

9. A monitoring system, comprising:

a sensor configured to sense patient physiological parameters; and

a monitor configured to receive input from the sensor related to the patient physiological parameters and to store data related to the parameters, the monitor comprising;

one or more processors configured to;

determine a respiration rate baseline from the data; and

establish an alarm sensitivity for respiration rate based on the respiration rate baseline, wherein the alarm sensitivity comprises a first tier corresponding to a low respiratory rate range, a second tier corresponding to a normal respiratory rate range, and a third tier corresponding to a high respiratory rate range, and the alarm sensitivity is selected based on which specific respiratory rate range encompasses the respiration rate baseline, wherein the alarm sensitivity relates to an acceptable percent shift of the respiration rate from the respiration rate baseline that if exceeded triggers an alarm, and the acceptable percent shift for at least one of the tiers is different from the acceptable percent shift of the other tiers.

10. The system of claim 9, wherein the sensor comprises a pulse oximeter sensor.

11. The system of claim 9, wherein the one or more processors are configured to:

determine a respiration rate from the data; and

measure a percent shift of the respiration rate from the respiration rate baseline.

12. The system of claim 11, wherein the monitor comprises a graphical indicator configured to be displayed comprising a graphical representation of an amount of time the percent shift exceeds the established alarm sensitivity.

13. The system of claim 12, wherein the monitor comprises the alarm configured to be triggered when the graphical indicator is full.

14. The system of claim 9, wherein the system is configured to trigger an alarm if the percent shift exceeds the established alarm sensitivity when the respiration rate is within the normal respiratory rate range.

15. A monitor, comprising:

a connector port configured to receive input from a sensor related to patient physiological parameters;

a memory configured to store data related to the parameters; and

one or more processors configured to;

determine a respiration rate baseline from the data; and

establish an alarm sensitivity for respiration rate based on the respiration rate baseline, wherein the alarm sensitivity comprises a first tier corresponding to a low respiratory rate range, a second tier corresponding to a normal respiratory rate range, and a third tier corresponding to a high respiratory rate range, and the alarm sensitivity is selected based on which specific respiratory rate range encompasses the respiration rate baseline, wherein the alarm sensitivity relates to an acceptable percent shift of the respiration rate from the respiration rate baseline that if exceeded triggers an alarm, and the acceptable percent shift for at least one of the tiers is different from the acceptable percent shift of the other tiers.

16. The monitor of claim 15, wherein the monitor comprises a pulse oximeter monitor.

21. The monitor of claim 15, wherein the monitor is configured to trigger an alarm is the percent shift exceeds the established alarm sensitivity when the respiration rate is within the normal respiratory rate range.

17. The monitor of 15, wherein the one or more microprocessors are configured to:

determine a respiration rate from the data; and

measure a percent shift of the respiration rate from the respiration rate baseline.

18. The monitor of claim 17, comprising a graphical indicator configured to be displayed comprising a graphical representation of an amount of time the percent shift exceeds the established alarm sensitivity.

19. The monitor of claim 18, comprising an alarm configured to be triggered when the graphical indicator is full.

20. The monitor of claim 17, comprising a display, wherein the display is configured to display one or more graphical indicators comprising the respiration rate, the respiration rate baseline, the alarm sensitivity, the percent shift of the respiration rate from the respiration rate baseline, or any combination thereof.