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A Tactile Automated Passive-Finger Stimulator (TAPS)
Published on: June 3, 2009
Extended physiologic taction: design and evaluation of a proportional force feedback system
S G Meek1, S C Jacobsen, P P Goulding
1Department of Mechanical and Industrial Engineering, University of Utah, Salt Lake City 84112.
Journal of Rehabilitation Research and Development
|January 1, 1989
Summary
This study introduces Extended Physiologic Taction (EPT), a novel force-feedback system for prosthetics. EPT enhances grip control and object manipulation by providing direct touch sensation, improving user interaction with prosthetic devices.
Area of Science:
- Robotics
- Biomedical Engineering
- Human-Computer Interaction
Background:
- Restoring tactile feedback in prosthetics is crucial for natural hand sensation.
- Current methods like electrotactile and vibrotactile stimulation lack the fidelity of natural touch.
- Direct force feedback offers a promising alternative for improved sensory restoration.
Purpose of the Study:
- To investigate Extended Physiologic Taction (EPT) as a novel force-feedback method for prosthetics.
- To develop a system providing a one-to-one correspondence between terminal device force/vibration and user stimulation.
- To quantify grip controllability and compare EPT with existing feedback systems.
Main Methods:
- Developed an Extended Physiologic Taction (EPT) system applying proportional force or vibration to the operator's skin.
- Created a method for quantifying grip controllability.
- Tested a prototype using a myoelectrically-controlled prosthetic terminal device.
Main Results:
- The EPT system demonstrated a one-to-one correspondence between grip force and skin stimulation.
- Improved grip control was observed when using the EPT system.
- Enhanced object manipulation capabilities were reported with EPT.
Conclusions:
- Extended Physiologic Taction (EPT) offers a physiologically compatible method for tactile feedback in prosthetics.
- EPT provides superior grip control and object manipulation compared to traditional feedback methods.
- The developed system allows for quantifiable comparisons between different feedback and prosthetic systems.
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