Team 8

Wearable Haptic Feedback System for Prevention of Repetitive Strain Injuries in Endoscopists

Team Members:
Calvin Huang
Evan McQueen
Alexander Sedlack
Ivan Tonido

Team Mentors:

Dr. Marco Santello, PhD - Arizona State University, SBHSE

Dr. Robert Sedlack, MD - Mayo Clinic

YouTube Link:
View the video link below before joining the zoom meeting

Zoom Link:
https://asu.zoom.us/j/81300862585


Abstract

Present day endoscopists have developed repetitive strain injuries resulting from extreme ranges of motion on a daily basis indicated by two independent studies that showed 45-89 % of surveyed endoscopists experienced strain injuries in at least one location on their body, and 42.1% of these people reported severe pain [1,2]. For the device we decided on the use of flex sensors to monitor wrist position which would be attached across the joint being measured, tactile feedback to not impair any senses of the operator, being delivered by multiple ERM coin motors which will provide graded vibratory feedback, and controlled by an Arduino Nano powered by two 3.7V batteries. The final device features a completely wireless, self contained, lightweight sleeve designed to not impair the user's action or ranges of motion (ROM). Specifications of real-time feedback were confirmed through LTSpice circuit simulations of voltage output, operating time, battery size, and recording speed were confirmed through theoretical “worst case” current draw conditions, and ROM monitoring and angle estimations were confirmed through modeled relations identified from the provided flex sensor data sheet and virtual simulations in TinkerCAD. We are in the process of compiling a formal FDA Premarket Application which will allow us to market our device publicly. With this, we hope that this device will be accepted into endoscopy training programs such as the Assessment of Competency in Endoscopy (ACE) tool from the American Society for Gastrointestinal Endoscopy (ASGE). where a percentage of time in the healthy range must be consistently maintained to achieve competency.

[1] Byun, Young-Hye et al. “Procedure-related musculoskeletal symptoms in gastrointestinal endoscopists in Korea.” World journal of gastroenterology vol. 14,27 (2008): 4359-64. doi:10.3748/wjg.14.4359 [2] Pawa, Swati, et al. “Are All Endoscopy-Related Musculoskeletal Injuries Created Equal? Results of a National Gender-Based Survey.” The American Journal of Gastroenterology, vol. 116, no. 3, Mar. 2021, pp. 530–38. PubMed, https://doi.org/10.14309/ajg.0000000000001136.