Haptic Driver Prototypes

After my father was in an accident requiring the amputation of his leg (and subsequent use of a prosthetic) and inspired by the book, Livewired, by David Eagleman, I wanted to see if miniature haptic arrays could be used to re-map sensation from a prosthetic leg to another part of the body. Over time, in theory, the brain will come to associate those new sensations with the lost sensations, closing a feedback loop and allowing more natural use of a prosthetic. I prototyped a few high-density haptic driver arrays.

Haptic Driver Array Specifics

  • Option 1: servo-driven push rod array.

  • Option 2: solenoid array.

  • Option 3: haptic motor belt with daisy-chainable motor drivers/motors.

The servo-driven push rods seemed the most promising as the servos could be mounted somewhere more convenient and the push rods fed to the desired location on the body. Using very flexible tubes and rods could allow the array to run along the body better. The solenoids get hot and the motor belt wasn’t dense enough (which inspired the motor driver project).


Haptic Driver Media