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TECHNICAL PAPERS

Instrumented Forceps for Measurement of Nerve Compression Forces

[+] Author and Article Information
A. M. Nawwar, N. G. Barakat

Department of Mechanical Engineering, Kuwait University, Kuwait

M. F. Sherif

Department of Anatomy, Faculty of Medicine, Kuwait University, Kuwait

J Biomech Eng 117(1), 53-58 (Feb 01, 1995) (6 pages) doi:10.1115/1.2792270 History: Received April 27, 1990; Revised January 27, 1994; Online October 30, 2007

Abstract

Compression (or crushing) is used to induce nerve injury in test rats to study nerve degeneration and regeneration. The compression forces could be applied using a variety of techniques developed by several investigators. The lack of precise control of the applied compression may be the source of significant variations among observations. In this study, a Mosquito and dressing forceps were used. The Mosquito forceps was calibrated to determine the tip load corresponding to the clamping position. The dressing forceps was modified, instrumented with strain gauges and calibrated to directly measure the force applied at its tip. These two forceps were used to induce known and controlled nerve compression in 75 male Wistar rats (280–300g). The applied forces were of the order of 40N and 20N, for the Mosquito and dressing forceps, respectively.

Copyright © 1995 by The American Society of Mechanical Engineers
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