Hero Arm is a myoelectric prosthetic developed by Open Bionics, a UK-based robotics company specializing in assistive technologies. Unlike traditional prosthetics, the Hero Arm interprets muscle signals from the residual limb to control a bionic hand, offering users fine-grained control and functionality. It is FDA-registered, medically certified, and designed for both children and adults with below-elbow limb differences.
Hero Arm is durable and reliable. This prosthesis is a medically certified and FDA registered Class 1 medical device
The Hero Arm redefines the boundaries of prosthetic technology. This lightweight and advanced bionic arm enables users to connect with the world around them in new ways while remaining comfortable.. Its multi-grip functionality facilitates diverse interactions with surroundings, making everyday tasks easier. The Hero Arm is the only device that offers ventilation keeping your skin dry and cool.
The Hero RGD (Red-Green-Blue Design) is a visually distinctive, limited-edition version of the Hero Arm featuring vibrant color schemes and themed aesthetic options, appealing especially to younger users.
Hero Arm by Open Bionics, including its RGD (Red-Green-Blue Design) customization variant, represents a breakthrough in the field of prosthetics. Developed with affordability, functionality, and personalization at its core, this 3D-printed, myoelectric bionic limb combines cutting-edge robotics, human-machine interface, and modular design to deliver life-changing impact for upper-limb amputees.
Engineering and Design
2.1. Structural Framework
- Material: High-strength, lightweight Nylon 12 via Selective Laser Sintering (SLS).
- Weight: ~1.0–1.3 kg, depending on configuration and user size.
- 3D Printing: All components are additively manufactured, enabling cost-effective customization and rapid prototyping.
2.2. Modularity
- Interchangeable cosmetic covers (e.g., Hero RGD skins, Marvel, Star Wars themes).
- Swappable components for upgrades and repairs.
- Adjustable socket system to ensure personalized fit.
Electronics and Control System
3.1. Myoelectric Interface
- Electromyographic (EMG) Sensors: Placed inside the socket to detect muscle contractions from the residual limb.
- Signals are processed in real time to open, close, or rotate the bionic hand.
3.2. Control Logic
- Pattern recognition or threshold-based control depending on user preference.
- Up to 6 grip patterns including:
- Tripod grip
- Pinch grip
- Power grip
- Active Index
- Hook grip
- Fist
3.3. Feedback System
- Haptic vibration motors provide tactile feedback to the user when the hand completes a movement or task.
- Auditory cues (optional) for training or error correction.
Open Bionics App Ecosystem
- Companion app allows:
- Grip training
- Firmware updates
- Usage analytics
- Remote diagnostics