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2010 Design of Medical Devices Conference Abstracts

Design of a Multifunctional Forceps for Use in Endoscopic Surgery OPEN ACCESS

[+] Author and Article Information
Andrew Rau

The Pennsylvania State University

Mary Frecker, Abraham Mathew, Eric Pauli

Hershey Medical Center, The Pennsylvania State University

J. Med. Devices 4(2), 027502 (Aug 06, 2010) (1 page) doi:10.1115/1.3442789 History: Published August 06, 2010; Online August 06, 2010

Abstract

This paper presents a 3.0 mm diameter endoscopic forceps design for use in minimally invasive surgical procedures, which require significant grasping and spreading forces. Models of the proposed design predict considerable improvements in the opening range (140%) and force application (87%) for both grasping and spreading when compared with currently used endoscopic forceps. Several of the tool’s design characteristics promote fail-safe malfunctions, including locking before catastrophic failure and the decreased likelihood in detached parts. Initial benchtop testing showed good agreement between prototype performance and model prediction. Frictional losses experienced during testing were found to depend on load orientation. A surgical prototype is currently being manufactured for ex vivo testing.

Copyright © 2010 by American Society of Mechanical Engineers
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