A flexible digit with tactile feedback for invasive clinical applications

Abstract

This paper describes research on measurement of tactile sense using a flexible digit appropriate to endoscopy and minimal access surgery. It is envisaged that the sensing method will facilitate the navigation of flexible invasive devices, such as endoscopes, and also aid diagnosis using tactile perception as well as visual observation. The proposed master-slave digit system incorporates the application of the distributive sensing method applied to tactile sensing in order to discriminate different contact conditions of the flexible digit. The paper concentrates on the description of the application of this method and places this in the context of the user and the integrated system. The approach to sensing is able to discriminate the position, magnitude, distributed profile and width of the applied contacting load by using only four sensing points. Values to describe these parameters are evaluated to an accuracy greater than 93 per cent.

Keywords

tactile sensor minimal invasive surgery endoscopy flexible digit neural network application

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References

Drake

J. M.

Joy

Goldenberg

Kreindler

Computer and robotic assisted resection of brain tumours. In Proceedings of 5th International Conference on

Advanced Robotics, 1991 ICAR, Pisa, 19–22 June 1991, pp. 888–892.

Taylor

R. H.

Paul

H. A.

Mittelstadt

B. D.

Hanson

Kazanides

Zuhan

J. F.

Glassman

Musits

B. L.

Bargar

W. L.

Williamson

An image based robotic system for hip replacement surgery

J. Robotics Soc. of Jap., October 1990, 111–116.

Harris

S. J.

Arambula-Cosio

Mei

Hibberd

R. D.

Davies

B. L.

Wickham

The PROBOT—an active robot for prostate resection

Proc. Instn Mech. Engrs, Part H: J. Engineering in Medicine, 1997, 211 (H4), 317–325.

Davies

B. L.

S. C.

Hibberd

R. D.

The use of force control in robot assisted knee surgery. In Proceedings of 1st International Conference on

Medical Robotics and Computer Assisted Surgery, Pittsburgh, September 1994, pp. 258–262.

Dario

Carrozza

M. C.

Marcacci

D'Attanasia

Magnami

Tonet

Megali

A novel mechatronic tool for computer assisted arthroscopy

IEEE Trans. Inf. Technol. in Biomed., March 2000, 4 (1).

Brett

P. N.

Guild

Investigations of operator response and interpretation of force stimulus at the user interface of master-slave minimal access clinical tools. World Congress on

Medical Engineering, IEEE EMBS, Chicago, August 2000, Track 4.

Brett

P. N.

A novel distributive tactile sensing technique for determining the position, width and intensity of a distributed load

Trans. IEEE Instrum. and Measmt Syst, 2002, 51 (2), 331–336.

Tongpadungrod

Rhys

Brett

P. N.

The optimisation of a distributive contact tactile sensing technique for measuring the position of a static point load

Int. J. Sensors and Actuators, 2003.

Cook

Malkus

Pleasha

Concepts and Applications of Finite Element Analysis, 3rd edition.