MARCH 27 TH , 2018 STAGE-GATING 6 TAYLOR COMBS, MEGAN HOLMBERG, - PowerPoint PPT Presentation

MARCH 27 TH , 2018 – STAGE-GATING 6 TAYLOR COMBS, MEGAN HOLMBERG, SEIVER JORGENSEN, & SAM KULTGEN

Problem Statement Free-field audibly medical alarms are loud and uninformative. The alarms cause sleep deprivation for patients and alarm fatigue for clinicians.

Patient Needs Assessment o Must not infringe on patient confidence in provider o Safety for Patient o Must have informative alarms to improve positive predictive value o Must not interfere with conversation and normal sounds o Must include alert for low battery and system malfunction

Provider Needs Assessment o Provider Efficacy o Interface o Should be available in multiple sizes o Should have volume control o Must be comfortable to wear all day o Should have haptic feedback control o Must stay in ear easily o Should have button to acknowledge receipt of o Transmitted alarms must not overbearing alarm o Should have a haptic component to alarm signal o Safety for Wearer o Must be sterilizable o Must be insulated to prevent shock and excessive o Must have long battery life heating o Should not receive unnecessary alarms to prevent o Must be sweatproof, waterproof alarm fatigue o Must be wireless with stable connection to central hub

System Needs Assessment o Cost Efficacy o Must be able to be purchased in bulk by hospitals or clinics o Should have long shelf life and capability to be activated as needed o Less than $500 per unit o Central Control o Must be able to selectively add patients to individual device o Must be able to direct signal to alert physician and/or nurse by need o Must improve positive predictability of medical alarms.

STUDY

PROTOCOL

PHYSIOLOGICAL SOUNDSCAPES • Comprised of 4 variables • Heart Rate (Drums) • Blood Pressure (Piano) • Blood Oxygenation (Guitar) • Haptic Stimulus Image adapted from Koen Bogers @ TU Delft

SOUND COMPONENTS The physiological soundscapes components change in timbre as the sonified variables move away from the desired set-point range.

+3 PHYSIOLOGICAL +2 +1 STAIRCASE Baseline -1 -2 -3

BUILDING PHYSIOLOGICAL SOUNDSCAPES Built Individual Sound Conditions • Each collects the 4 variables of the • soundscape for a given condition Ex. HR+3, BP-3, SpO2 90, Haptuator -3 • Complied Into Physiological Soundscapes • • This develops changes over time for each 12 minutes block within the study

SSRT AND NEW GRAPHIC USER INTERFACE

NEW GRAPHIC USER INTERFACE Version 2: Solutions Version 1: Issues Added submit button • No submit button • • GUI will not close until clicked • Parameter must be selected before Direction • Radio buttons instead of push buttons Selections not visible • Selection is visible and can be changed • Initial choices cannot be changed • Only one selection possible for each • No allowance for accidental user clicks • category—more foolproof

AfterShokz TREKZ Lofelt Basslet Haptuator Titanium Bone Conductor Headphones

BME IDEAS GRANT

• Description of Problem to be Solved • ICU delirium in up to 80% of patients • Delirium-induced cognitive impairments can last months to years after ICU stay • Final Prototype • Added images to section • Need: further detail about purpose of each component • Estimated Manufacturing Costs • $267 in hardware • ~$300 / device • Regulatory Pathway • Sounds: Class II (510k) • Device: Class I

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