0
Technical Brief

Dynamic Calibration Method for Instrumented Laparoscopic Surgical Graspers1

[+] Author and Article Information
Michael Winek, Robert Sweet, Timothy M. Kowalewski

Department of Mechanical Engineering,
University of Minnesota,
111 Church Street SE,
Minneapolis, MN 55455

Accepted and presented at the Design of Medical Devices Conference (DMD2014), Minneapolis, MN, April 7–10, 2014.

Manuscript received February 21, 2014; final manuscript received March 3, 2014; published online July 21, 2014. Editor: Arthur G. Erdman.

J. Med. Devices 8(3), 030933 (Jul 21, 2014) (2 pages) Paper No: MED-14-1084; doi: 10.1115/1.4027078 History: Received February 21, 2014; Revised March 03, 2014

First Page Preview

View Large
First page PDF preview
FIGURES IN THIS ARTICLE
Copyright © 2014 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Fig. 1

Distal sensor platform equipped with digital caliper for simple adjustment of jaw separation and mirrored load cells to measure load applied by each jaw undergoing compressions from an instrumented Babcock grasper

Grahic Jump Location
Fig. 2

Calibration curve for load cells

Grahic Jump Location
Fig. 3

Jaw displacement accuracy (left) and jaw force accuracy (right) from dynamic calibration

Grahic Jump Location
Fig. 4

Calibration curves for the instrumented Babcock grasper. (Left) is the dJaw response to FHandle and θHandle (right) is the FJaw response to FHandle and θHandle.

Grahic Jump Location
Fig. 5

Handle force versus encoder count representing the recorded data in vivo (leftmost) and ex vivo data collected from a porcine model over multiple consecutive trapezoidal compressions

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In