Northwestern University Design Thinking & Communication Course | Client: Shirley Ryan AbilityLab

OverLap

Problem Statement

Design a weather protection solution for wheelchair users with hemiplegia that allows for independent, one-handed operation, ensuring full mobility and visibility in the rain.

The Accomplishments

Managed a cross-functional team to deliver a physical product solution for a leading rehabilitation research hospital
Built and tested three functional low-fidelity prototypes, evaluating multiple mechanisms for speed, usability, and one-handed operation
Conducted user research and testing with a patient at Shirley Ryan AbilityLab, leading two feedback sessions to assess comfort, functionality, and visibility
Iterated on multiple concepts—including a retractable canopy—before identifying a key insight: the canopy obstructed lateral vision and was too bulky, while traditional umbrellas were obtrusive to open, especially for users with limited mobility
Finalized a solution using an invertible umbrella + gooseneck system, allowing the device to be deployed with one hand and ensuring full coverage and visibility
Led physical prototyping, CAD sketching, and shop fabrication to translate concept into a working high-fidelity model

The Result

A thoughtfully engineered assistive device that empowers users with limited mobility to remain independent in inclement weather—refined through real-world testing and client collaboration.