A functional prosthetic glove with real-time haptic feedback and high grip force capabilities.
The Prosthetic Hand project represents a comprehensive approach to assistive technology, combining mechanical design, control systems, and haptic feedback to create a functional prosthetic device.
The device was designed using SolidWorks with extensive FEA (Finite Element Analysis) to optimize the structural components. It integrates 4 MG90S servo motors with PTFE (Polytetrafluoroethylene) tendon routing system, mimicking the natural tendon structure of human hands for smooth and reliable finger movement.
A closed-loop control system using an ESP32 microcontroller and FSR (Force Sensing Resistor) sensors provides real-time force feedback. The system achieves an impressive 18N grip force, representing a 310% improvement over baseline designs. The actuation time is just 0.5 seconds with a torque output of 2.2 kg·cm, making it both powerful and responsive.
One of the key innovations is the integration of a DRV2605 haptic driver, providing real-time haptic feedback to the user. This tactile feedback significantly enhances the user's ability to control grip strength and handle delicate objects. The project demonstrates the successful integration of mechanical engineering, electronics, and user-centered design in creating practical assistive technology.