Patient monitoring alarm escalation system and method

• US 8,364,221 B2
• Filed: 11/21/2008
• Issued: 01/29/2013
• Est. Priority Date: 09/30/2005
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Mannheimer, Paul D., Li, Li, Kilborn, J. Christopher, Orian, David A.
• Primary Examiner(s): WINAKUR, ERIC FRANK
• Application Number:
  US12/276,188
• Publication Number:
  US 20090221887A1
• Time in Patent Office: 1,530 Days
• Field of Search: 600/310, 600/322, 600/323, 340/573.1, 340/506, 340/507, 340/508
• US Class Current: 600/323
• CPC Class Codes: A61B 2560/0276 Determining malfunction
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B

Abstract

Embodiments of the present invention relate to a patient monitoring alarm escalation system and method. Specifically, embodiments of the present invention include an alarm detection device configured to measure physiological data received via a patient monitor, the alarm detection device configured to initiate an alarm in response to predefined measurements of the physiological data, and an alarm device configured to emit a first signal with a first property and a second signal with a second property, the first signal being emitted when the alarm is initiated, the second signal being emitted if an alarm acknowledgement mechanism is not activated prior to a designated event.

Claims

1. A pulse oximetry monitoring system, comprising:

a pulse oximeter including a plurality of built-in speakers, wherein the pulse oximeter comprises an alarm device configured to;

initiate a primary alarm through one of the plurality of built-in speakers in response to determining that a measurement of a physiological data value obtained by the pulse oximeter meets a defined requirement;

initiate a secondary alarm through another of the plurality of built-in speakers if an alarm acknowledgement mechanism is not activated prior to a first designated event; and

escalate a property of the secondary alarm if the alarm acknowledgement mechanism is not activated prior to a second designated event.

2. The system of claim 1, comprising the alarm acknowledgement mechanism.

3. The system of claim 2, wherein the alarm device is configured to emit the primary alarm at a first frequency and the secondary alarm at a second frequency when an alarm condition is recognized, the second frequency increasing if the alarm acknowledgement mechanism is not activated prior to the second designated event.

4. The system of claim 2, wherein the alarm device is configured to increase a magnitude of the secondary alarm if the alarm acknowledgement mechanism is not activated prior to the second designated event.

5. The system of claim 2, wherein the alarm device is configured to increase magnitudes of the primary and secondary alarms if the alarm acknowledgement mechanism is not activated prior to the second designated event.

6. The system of claim 5, comprising a timer configured to count down a first designated amount of time, wherein completion of the count down is the first designated event.

7. The system of claim 1, comprising a sensor configured to gather actual physiological data from a patient.

8. The system of claim 1, comprising a pager configured for wireless communication with the pulse oximeter and operation remote from the pulse oximeter.

9. A pulse oximeter, comprising:

an alarm detection device configured to measure physiological data received via the pulse oximeter, the alarm detection device configured to initiate an alarm in response to predefined measurements of the physiological data;

a first built-in speaker configured to emit a first signal with a first property; and

a second built-in speaker configured to emit a second signal with a second property, the first signal and the second signal being emitted when the alarm is initiated, and wherein the alarm detection device is configured to escalate the second property of the second signal if an alarm acknowledgement mechanism is not activated prior to a designated event.

10. The pulse oximeter of claim 9, wherein the first and second signals are different audible tones and the first and second properties are different frequencies.

11. The pulse oximeter of claim 9, wherein the pulse oximeter includes a pager system that is built into the pulse oximeter.

12. The pulse oximeter of claim 9, wherein the first property is manipulated if the alarm acknowledgement mechanism is not activated prior to the designated event.

13. The pulse oximeter of claim 9, comprising a plurality of external speakers directly coupled to the patient monitor via connection points.

14. The pulse oximeter of claim 9, comprising a first pager configured to be activated if the alarm acknowledgement mechanism is not activated prior to the designated event, and a second pager configured to be activated if the alarm acknowledgement mechanism is not activated prior to a second designated event.

15. A method for facilitating clinical vigilance, comprising:

receiving physiological data from a patient into a pulse oximeter;

measuring the physiological data with the pulse oximeter and initiating an alarm in response to predefined measurements of the physiological data;

emanating a first signal with a first property from a first built-in speaker of the pulse oximeter, and a second signal with a second property from a second built-in speaker of the pulse oximeter when the alarm is initiated; and

escalating the first property or the second property if an alarm acknowledgement mechanism is not activated prior to a designated event.

16. The method of claim 15, comprising escalating the first and the second property with the pulse oximeter if the alarm acknowledgement mechanism is not activated prior to a second designated event.

17. The method of claim 15, comprising emanating the first and second signals as different audible tones.

18. The method of claim 15, comprising emanating a third signal from a pager in remote communication with the pulse oximeter when the alarm is initiated.

19. The method of claim 15, wherein the first and second properties are different frequencies.

20. The method of claim 15, wherein the first and second properties are different volumes.

21. A pulse oximeter configured to receive blood oxygen saturation data from a patient, the monitor comprising:

an alarm detection device configured to measure the blood oxygen saturation data and initiate an alarm in response to a value of the blood oxygen saturation data meeting a criterion;

at least two speakers directly coupled with the pulse oximeter, the at least two speakers each configured to emanate a first signal and a second signal when the alarm is initiated; and

an alarm timer configured to start when the alarm is initiated and to reset with a reduced period if an alarm acknowledgement mechanism is not activated prior to a designated event, wherein said alarm detection device is configured to escalate a property of the first signal or the second signal upon completion of each period of the alarm timer.

22. The pulse oximeter of claim 21, comprising a paging system built-in to the pulse oximeter, wherein the paging system is configured to initiate a pager alarm if the alarm remains unacknowledged a designated amount of time after the alarm condition is detected.

23. The pulse oximeter of claim 21, wherein said alarm detection device is configured to cause a first speaker to emit a first audible sound and a second speaker to emit a second audible sound different from the first audible sound.

24. The pulse oximeter of claim 21, wherein said alarm detection device is configured to cause a first speaker to emit and maintain a first audible sound while an alarm condition is present and unacknowledged and a second speaker to emit a second audible sound that escalates over time while the alarm condition is present and unacknowledged.

25. The pulse oximeter of claim 21, wherein the at least two speakers are built-in speakers of the pulse oximeter.