This paper presents a 3.0 mm diameter multifunctional endoscopic forceps design for use in minimally invasive flexible endoscopic surgical procedures. Multifunctional capabilities including grasping, spreading, and cauterizing tissue are demonstrated experimentally and compared to commercially available forceps. Models of the proposed design predict considerable improvements in opening range (140%) and force application (87%) for both grasping and spreading when compared to currently used endoscopic forceps. Several of the tool’s design characteristics promote fail-safe malfunctions, including locking before catastrophic failure and a decreased likelihood in detached parts. Initial benchtop testing shows good agreement between prototype performance and model prediction. Frictional losses experienced during testing were found to depend on load orientation.
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December 2011
Research Papers
Multifunctional Forceps for Use in Endoscopic Surgery—Initial Design, Prototype, and Testing
Mary Frecker,
Mary Frecker
Department of Mechanical & Nuclear Engineering,
mxf36@engr.psu.edu
Pennsylvania State University
, University Park, PA 16802
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Abraham Mathew,
Abraham Mathew
Department of Gastroenterology, Penn State Hershey Medical Center
, Hershey, PA 17033 e-mail:
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Eric Pauli
Eric Pauli
Department of General Surgery, Penn State Hershey Medical Center
, Hershey, PA 17033 e-mail:
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Mary Frecker
Department of Mechanical & Nuclear Engineering,
Pennsylvania State University
, University Park, PA 16802mxf36@engr.psu.edu
Abraham Mathew
Department of Gastroenterology, Penn State Hershey Medical Center
, Hershey, PA 17033 e-mail:
Eric Pauli
Department of General Surgery, Penn State Hershey Medical Center
, Hershey, PA 17033 e-mail: J. Med. Devices. Dec 2011, 5(4): 041001 (10 pages)
Published Online: November 7, 2011
Article history
Received:
June 1, 2010
Accepted:
September 25, 2011
Published:
November 7, 2011
Citation
Rau, A. C., Frecker, M., Mathew, A., and Pauli, E. (November 7, 2011). "Multifunctional Forceps for Use in Endoscopic Surgery—Initial Design, Prototype, and Testing." ASME. J. Med. Devices. December 2011; 5(4): 041001. https://doi.org/10.1115/1.4005225
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