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Updated: Oct 23, 2025

A Tactile Automated Passive-Finger Stimulator TAPS
Published on: June 3, 2009
SuP-Ring: A pneumatic tactile display with substitutional representation of contact force components using normal
Hoang Hiep Ly1,2, Yoshihiro Tanaka1, Michitaka Fujiwara3
1Department of Electrical and Mechanical Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Nagoya, Japan.
Background:
Shear force is important for tumour detection and can contribute to minimally invasive surgery (MIS). A popular method uses lateral skin stretch to produce shear force but has some limitations.
Methods:
We have developed a ring-type pneumatic tactile display that employs normal indentation substituted for lateral skin stretch to represent normal and shear feedback, called SuP-Ring. Psychophysical experiments were conducted to evaluate how users perceive the provided feedback and the effectiveness of SuP-Ring in tumour localisation.
Results:
The experimental results show that the participants could perceive the provided normal and shear feedback well. Shear feedback enables users to enhance their performance in localising the tumour and normal feedback could contribute to ensuring the safety requirements in MIS.
Conclusions:
The proposed tactile display could be useful for intraoperative tumour localisation and has the potential to be used in a wide variety of applications.
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