ABOUT JH DESIGNS: INNOVATION & COMPASSION

Discover the Technology, the Heart, and the Vision that shape our future.

THE TECHNOLOGY: ENGINEERED MOBILITY

EvoArm exploded view showing all five modular components

1Modular Finger System (Part 1)

2Thumb Opposition Mechanism (Part 2)

3Structural Palm Chassis (Part 3)

4Wrist Connection Interface (Part 4)

5Forearm & Bicep Sleeve (Part 5)

EMG INTERFACE NODE

Proprietary electromyographic signal processing module that translates muscle impulses into precise motor commands.

Our proprietary EMG interface and modular system represent the vanguard of prosthetic technology, designed to integrate seamlessly with the user.

Cross-section: Internal Sensor Placement

Cross-section diagram showing internal sensor placement within the prosthetic arm

Ethan, founder of JH DESIGNS, made a promise to make an affordable, reliable prosthetic arm. Then he promised to develop an advanced prosthetic arm within reach of everyone.

THE HEART: A FATHER'S PROMISE

Ethan and Etten - the inspiration behind JH DESIGNS

Our Inspiration: Ethan & Etten

Built on Love

Dedicated to Future Generations

Accessible Innovation

Affordable prosthetic solutions designed for real people.

Advanced Technology

EMG control, upgradable hardware, and safety-first systems.

Built With Purpose

Created from a real story to help real families.

JH DESIGNS transforms lives by providing custom, high-fidelity 3D-printed prosthetic arms to those who have been overlooked.

PARTNER FOR CHANGE