Prosthetics

Virtual Integration Environment

Air Tennis

Because of the limited quantities of the Modular Prosthetic Limb (MPL), APL has developed a virtual-reality MPL that runs in the Virtual Integration Environment (VIE). The VIE was developed to make the transition from a virtual training environment to the physical world with the actual MPL as seamless as possible, thus facilitating patient training for optimal control of the prosthetic limb. Importantly, the VIE is a platform-independent communication interface to the MPL. It offers an improved three-dimensional MPL simulation environment.

The VIE was created as a development platform for rapid prototyping, evaluation, and deployment of neural signal processing algorithms.

  • Based on MATLAB xPC Target; operates in (hard) real time
  • Accepts inputs from Cerebus, Plexon, Vikon, etc.
  • Defines standard input/output interfaces for neural signal analysis algorithms (neural signals in/limb commands out)
  • Can simulate an electromechanical system with or without hardware
  • Provides three-dimensional visualization and a configurable interactive world via Unity/PhysX

Recommended Reading

Development of Virtual Integration Environment Sensing Capabilities for the Modular Prosthetic Limb (Society for Neuroscience, Washington, DC, 2014)

Use of a Virtual Integrated Environment in Prosthetic Limb Development and Phantom Limb Pain (Studies in Health Technology and Informatics, Volume 181, pp. 305–309, 2012)

A Real-Time Virtual Integration Environment for Neuroprosthetics and Rehabilitation (Johns Hopkins APL Technical Digest, Volume 30, Issue 3, pp. 198–206, 2011)

Using a Virtual Integration Environment in Treating Phantom Limb Pain (Studies in Health Technology and Informatics, Volume 163, pp. 730–736, 2011)

A Real-Time Virtual Integration Environment for the Design and Development of Neural Prosthetic Systems (Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Vancouver, BC, Canada, 20–25 August 2008, pp. 615–619)