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US 9,870,678 B2Granted
Dynamic alarm system for reducing alarm fatigue
AssigneeVanderbilt University
InventorsJoseph Schlesinger, Allyson Garcia, Victoria Mitchell, Forbes Turley
Life of this patent
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Abstract
A dynamic alarm system that can assess the background noise in a clinical environment with sub-minute time sampling and change the alarm output to a desired signal-to-noise ratio (SNR) below ambient noise (negative SNR) to minimize clinician fatigue and ameliorate deleterious patient outcomes, while preserving clinician performance.
Claims14
A dynamic alarm system comprising:
- a housing;
- an electronic processor;
- a microphone electronically coupled to the electronic processor, the microphone configured to sense an ambient noise level proximal to the housing;
- a user interface on the housing and electronically coupled to the electronic processor, the user interface configured to allow a user to select a signal-to-noise ratio based on the ambient noise level;
- and
- a speaker electronically coupled to the electronic processor, the speaker configured to output an audible tone according to the selected signal-to-noise ratio when a physiological parameter detected by a sensor coupled to a patient exceeds a preselected threshold for that physiological parameter.
3 more elements
A dynamic alarm system comprising:
- a microphone configured to sense an ambient noise volume of an area around the alarm system;
- a speaker;
- and
- an electronic processor configured to
- determine an alarm volume based on a negative signal-to-noise-ratio wherein the signal is the alarm volume and the noise is the ambient noise volume, and
- control power supplied to the speaker to control the alarm volume when the electronic processor receives a triggering signal from a sensor coupled to a patient, wherein the triggering signal indicates that a physiological parameter has exceeded a preselected threshold.
3 more elements
Dependencies are inferred from the claim text.