A Retractable Six-Prong Laparoscopic Grasper for Laparoscopic Myomectomy
Name
med_016_03_031003.pdf
Description
Published version
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2.95 MB
Format
Adobe PDF
Checksum (MD5)
ffc6b56e21bc44917c330357f2f861a6
Author(s)
Butters, Brenden
Fernández-Galiana, Álvaro
Wollin, Daniel
Traverso, Giovanni
Slocum, Alexander
Petrozza, John
Date Issued
March 31, 2022
Journal
Journal of Medical Devices
Publisher
ASME International
Citation
Butters, B., Fernández-Galiana, Á., Wollin, D., Traverso, G., Slocum, A., and Petrozza, J. (March 31, 2022). "A Retractable Six-Prong Laparoscopic Grasper for Laparoscopic Myomectomy." ASME. J. Med. Devices. September 2022; 16(3): 031003.
Version
Final published version
Abstract
The fixation and manipulation of fibroids during laparoscopic myomectomy is a persistent issue for gynecologic surgeons. In this paper, we present a laparoscopic grasper that, through a sheath-based deployment mechanism, opens into a larger multitoothed grasper within the patient and collapses back for removal. Due to the increased number of contact points with the tumor, the expanded grasper allows for reliable fixation, aiding in manipulation during excision. We describe the nature-inspired design of the grasper from a physical foundation, establish the design theory and practical issues, and present manufacturing and testing of a full-scale 5 mm grasper. The unit was tested on synthetic fibroid models and was able to sustain a 50% higher load before tearing than a common single-tooth tenaculum. This development not only promises to improve fibroid fixation in myomectomy but also its design could be adapted to aid in the fixation of other difficult tissues in laparoscopic surgery.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Integrated Design and Management Program
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1115/1.4054013
