Our Story

From a Dartmouth engineering capstone to a non-profit on a mission to transform rehabilitation for spastic hemiparesis.

Where It All Began

Our founding sponsor, a member of the Dartmouth community, developed spastic hemiparesis following a stroke. For years they searched for a device that could help them regain function in their affected hand, but nothing on the market met their needs. Existing devices were too rigid, too expensive, or impossible to put on without assistance. At one point they resorted to holding a pill bottle in their affected hand simply to maintain some degree of stretch.

Determined to find a better solution — not just for themselves, but for others living with the same condition — they sponsored a capstone engineering project at the Thayer School of Engineering at Dartmouth. That project became Hemi-Hand.

Understanding Spastic Hemiparesis

1

Motor Signal Dysfunction

Damage to the brain, often from a stroke or traumatic injury, disrupts the motor signals that control muscle movement.

2

Upper Limb Contraction

Without proper signaling, the muscles in the hand and arm contract involuntarily, pulling the fingers into a fist.

3

Reduced Functionality

The chronic contraction severely limits the patient's ability to use their hand for everyday tasks, reducing independence.

Patient Perspectives

"Had it for [over a decade] and I sort of have a museum of things that I've tried."

"…only have one and a half hands and dealing with velcro is a real pain in the neck."

"Need some kind of initial mobility for those gloves... a prerequisite to put your hand into another glove."

Anonymous Patient

Our Progress

Spring 2025
Finished Initial Design Phase
Successfully completed an engineering capstone project at Dartmouth College.
Fall 2025
Incorporated as a Non-Profit Entity
Completed incorporation as a non-profit corporation in the State of Indiana.
22 January 2026
Patent Application Filed
Filed a patent application covering the device design. The application is pending; no patent has been granted.
Winter 2026
Final Development Phase
Worked with students at Dartmouth College to optimize materials and production processes.
Current
Prototype Finalization and Partner Search
Completing final prototype sizing while seeking an organization able to acquire or license the design. No efficacy or safety studies have been conducted to date.
Fall 2027
Target: Available to Patients
Our target for the device reaching patients. This depends on a commercialization partner carrying it through testing and FDA registration.