Team 28

Wearable Motion Capture Device for CABG Rehabilitation

Team Members: John Le
Anugraha Pal
Jason Zhang

Team Mentors: Claire Honeycutt, PhD - SBHSE
Thurmon E. Lockhart, PhD - SBHSE
Sheila R. Pal - CABG and Geriatrics

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

Zoom Link: https://asu.zoom.us/j/81020575478

Abstract

After receiving a coronary bypass surgery, patients are required to limit their range of motion to prevent re-injury, of which non-adherence can result in sternal dehiscence, wound site infection, emergency surgery, and prolonged rehabilitation. This need is exacerbated by non-adherence at home, the demand to reduce time spent in hospital/post-acute care, and the increased risks associated with improper rehabilitation Our product aims to measure and provide real-time feedback on patients' range of motion to improve rehabilitation outcomes. Our IPDT aims to utilize Inertial Measurement Unit (IMU) motion tracking technology to capture patient motion. IMU sensors contain magnetometers, accelerometers, and gyroscopes to extrapolate three-dimensional position, linear and angular velocity, as well as linear and angular acceleration.

IMU sensors are used in sets on the human body to measure three dimensional biometric motion, such as joint angles and joint velocity. They can be purchased 'off the shelf' for a reasonable cost, and IMU sensors are already utilized widespread in the market for high-end athletic performance metrics. From over 10 designs, we settled on a 4 MTw Awinda IMU sensors strap apparatus for experimental verification and the creation of the initial prototype. Based on the current bill of materials and our plans for the second iteration of the prototype, we have high hopes for its economic profile and eventual market viability. The CABG (coronary artery bypass surgery) industry alone will experience a 5.6% CAGR (compound annual growth rate), which is the major contributor to sternotomy rehabilitation patients. Insurance companies aim to reduce time patients spend in medical facilities after surgery, and COVID 19 has affected how long these patients are able to stay in medical facilities after a procedure. Our IPDT believes our device can be a major force for change in post-surgical rehabilitation after looking at the preliminary compliance accuracy of our functional prototype.