Critical care units in hospitals are overwhelmed with the sound of alarms from different patient monitoring devices. This can cause stress and distraction in clinicians while they are engaged in a medical procedure. This research is focused on how integrating vibration with the sound of alarm can make the alarm less intrusive and more informative.
Two case studies to approach this problem has been conducted in our lab. The first study focused on the effect of a sub-threshold vibration stimulus on recognizing audio alarm. The second set of user experimentations explored the efficiency of vibrotactile stimulus on the performance of clinicians on recognizing the abnormality in the patient while engaged in a secondary task. The vibrations were delivered either to the participants leg or their wrists and ankle and contained two pieces of information, the type of the abnormal vital sign and the level of the abnormality.
Last updated on Nov 6, 2018