Technical Briefs

Quantifying Forces at the Tool-Tissue Interface of a Surgical Laparoscopic Grasper

[+] Author and Article Information
Timothy M. Kowalewski

Department of Mechanical Engineering,
University of Minnesota

Manuscript received March 15, 2013; final manuscript received April 26, 2013; published online July 3, 2013. Assoc. Editor: Arthur G. Erdman.

J. Med. Devices 7(3), 030913 (Jul 03, 2013) (2 pages) Paper No: MED-13-1068; doi: 10.1115/1.4024479 History: Received March 15, 2013; Revised April 26, 2013

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Grahic Jump Location
Fig. 1

Setup for MSEG proximal (top left) and distal (top right) end experiments, and EDGE grasper (bottom) experiment

Grahic Jump Location
Fig. 4

EDGE grasper measured force versus jaw angle for 500 g applied at grasper jaws

Grahic Jump Location
Fig. 3

EDGE grasper measured force values versus jaw angle at different applied weight intervals over full handle position

Grahic Jump Location
Fig. 2

MSEG box plots of applied weights vs. measured strain values at the proximal end (top) and the distal end with fixed handle position (bottom)



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