Design of a 1.0MM multifunctional forceps-scissors instrument for minimally invasive surgery

Milton E. Aguirre, Mary I. Frecker

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

A multifunctional forceps-scissors instrument is designed for minimally invasive surgery. The device is a compliant mechanism capable of both grasping and cutting. The focus of the paper is on the design optimization and a detailed finite element analysis of the compliant mechanism. One-half of the symmetric compliant mechanism is modeled as a cantilever beam of rectangular cross-section undergoing large deformation. The optimization problem is solved graphically where all feasible designs (i.e., those that satisfy the stress and geometric constraints) are displayed on performance space plots. Using this method it is easy to visualize the performance space and to select a suitable design; however, it is found that it is not possible to simultaneously maximize free deflection and blocked force in the forceps or scissors modes. A detailed finite element analysis was conducted using ANSYS to model the multiple loading conditions. A prototype instrument, fabricated from stainless steel using wire EDM with the precision of +/- 2 μm, has been tested for comparison of actual and predicted results.

Original languageEnglish (US)
Title of host publicationProceedings of 2006 ASME International Design Engineering Technical Conferences and Computers and Information In Engineering Conference, DETC2006
Volume2006
StatePublished - 2006
Event2006 ASME International Design Engineering Technical Conferences and Computers and Information In Engineering Conference, DETC2006 - Philadelphia, PA, United States
Duration: Sep 10 2006Sep 13 2006

Other

Other2006 ASME International Design Engineering Technical Conferences and Computers and Information In Engineering Conference, DETC2006
CountryUnited States
CityPhiladelphia, PA
Period9/10/069/13/06

Fingerprint

Compliant mechanisms
Surgery
Finite element method
Cantilever beams
Stainless steel
Wire

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Aguirre, M. E., & Frecker, M. I. (2006). Design of a 1.0MM multifunctional forceps-scissors instrument for minimally invasive surgery. In Proceedings of 2006 ASME International Design Engineering Technical Conferences and Computers and Information In Engineering Conference, DETC2006 (Vol. 2006)
Aguirre, Milton E. ; Frecker, Mary I. / Design of a 1.0MM multifunctional forceps-scissors instrument for minimally invasive surgery. Proceedings of 2006 ASME International Design Engineering Technical Conferences and Computers and Information In Engineering Conference, DETC2006. Vol. 2006 2006.
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Aguirre, ME & Frecker, MI 2006, Design of a 1.0MM multifunctional forceps-scissors instrument for minimally invasive surgery. in Proceedings of 2006 ASME International Design Engineering Technical Conferences and Computers and Information In Engineering Conference, DETC2006. vol. 2006, 2006 ASME International Design Engineering Technical Conferences and Computers and Information In Engineering Conference, DETC2006, Philadelphia, PA, United States, 9/10/06.

Design of a 1.0MM multifunctional forceps-scissors instrument for minimally invasive surgery. / Aguirre, Milton E.; Frecker, Mary I.

Proceedings of 2006 ASME International Design Engineering Technical Conferences and Computers and Information In Engineering Conference, DETC2006. Vol. 2006 2006.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Aguirre ME, Frecker MI. Design of a 1.0MM multifunctional forceps-scissors instrument for minimally invasive surgery. In Proceedings of 2006 ASME International Design Engineering Technical Conferences and Computers and Information In Engineering Conference, DETC2006. Vol. 2006. 2006