|NMT Robotic Interfaces Laboratory research focuses on human interaction with electromechanical systems.|
Current Graduate Students
My research is regarding the construction of high-function, low cost prosthetic fingers. Current solutions for prosthetic hands can cost upwards of $20,000 to $100,000, due to the intensive costs of manufacturing, labor, and materials. This actually leads to a decreased usage by patients because of the fear of damaging their expensive prosthetic. Using 3D printing technologies and unconventional filaments, I am trying to create fingers with advanced capabilities in a single, simple process. This method could allow prosthetic users to 3D print their own replaceable fingers at home for less than a few dollars per finger.
Modern hand prosthetics are generally lacking in the area of intuitive, reliable,
and versatile user control. One method of control that is promising is force myography.
This method uses force or pressure sensors in an arrangement on the user's forearm.
Residual movement within the forearm creates an activation pattern that can be used
to actuate the user's prosthetic.
There are some drawbacks to force myographic methods that have been studied and published in literature. This project seeks to address some of the major drawbacks, including inaccuracy from shifting of sensors on the arm, changes in activation patterns with short-term and long-term use, and the loss of useable data due to sensor drift.
This project will study the use of different types of custom, low cost to manufacture, sensors, and custom wrist band designs to see how they compare to conventional sensors and wrist band designs for force myography-based control. Additionally, software-based methods will be implemented in an effort to reduce the effect of shifting sensors, continuously changing user input, etc.
Former Graduate Students
most grasp situations a prosthesis would expect to encounter would better relate to a stationary environment than one in motion.