Confidential medical device startup
Impact ES–Rhode Island designed the electronics for a wheelchair that looks just like a standard wheelchair but requires significantly less effort to operate.
Individuals confined to a wheelchair typically need substantial upper body strength to maneuver a standard model. Even for strong users, certain hills and uneven terrain remain inaccessible without resorting to a bulky and expensive powered wheelchair.
The goal of this project was to provide a power assist solution—much like power steering in a car—so users could maintain the familiar experience of a manual wheelchair while benefiting from greatly reduced effort.
The founders of the client company brought strong mechanical design expertise but needed a partner to handle the electronics. Impact ES–Rhode Island designed the electronics necessary to implement the customer’s patented power assist technology. This included complex three-phase motor control as well as the development of the overall control algorithm.
Because wheelchairs of this type are regulated by the FDA, Impact ES–Rhode Island designed and tested the device to ensure compliance with the IEC 60601 Medical Electrical Equipment Standard. Additionally, the ISO 7176 standard specific to power wheelchairs was applied to demonstrate safety and effectiveness. The team conducted a full hazard analysis and produced all required design and testing documentation, which was submitted to the FDA and ultimately received approval.
This project highlights Impact ES–Rhode Island’s ability to collaborate with innovative startups, translating patented mechanical concepts into fully functional, FDA-compliant electronic systems. The work showcases deep expertise in medical device standards, motor control, and end-to-end product development support.
