Design of an Atraumatic Laparoscopic Grasper
Date
2016
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Swarthmore College. Dept. of Engineering
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Thesis (B.A.)
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Award
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en_US
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Full copyright to this work is retained by the student author. It may only be used for non-commercial, research, and educational purposes. All other uses are restricted.
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Abstract
In this E90, I propose a novel laparoscopic grasper design that is intended to reduce the risk of inadvertent tissue damage during surgery. The small, V-shaped jaws of traditional laparoscopic graspers apply high and uneven pressures to tissue and cause slippage when grasping, inducing tissue perforation and cell death. Potential adverse effects of grasper usage include bleeding, scar tissue, adhesion, and fistula formation. My design utilizes parallel, rather than V-shaped, jaws to maximize contact area and prevent slippage between the jaws and tissue. I have developed a working grasper prototype using aluminum and 3D-printed parts. While this prototype is effective in achieving the parallel jaw motion and manipulating tissue, design changes must be made to determine the design's efficacy in minimizing tissue damage.