A new inertia-based linear stepper motor for micro-surgical procedures

Raed N. Rizq, David J. Peichel, David R. Wulfman, Arthur G. Erdman, Dennis L. Polla

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

6 Scopus citations


A new hand held surgical device intended to aid physicians in microsurgery is reported. This device provides a means for delivering small implants through the use of a precision motion linear stepper motor fabricated from silicon and piezoelectric components. The stepper motor described here utilizes the inertial properties of a moving mass as part of the actuation process. Micro Electromechanical Systems-based (MEMS) technology is used in building the device. Test instruments have delivered over fifty implants with consistent performance. Typically the test instruments have attained 1.2 mm/s advancement speeds against 3 Newton resistance loads, a maximum output force of 4.6 Newtons, and maximum total displacement of 38 mm.

Original languageEnglish (US)
Title of host publication25th Biennial Mechanisms Conference
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791880302
StatePublished - 1998
EventASME 1998 Design Engineering Technical Conferences, DETC 1998 - Atlanta, United States
Duration: Sep 13 1998Sep 16 1998

Publication series

NameProceedings of the ASME Design Engineering Technical Conference


ConferenceASME 1998 Design Engineering Technical Conferences, DETC 1998
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
© 1998 American Society of Mechanical Engineers (ASME). All rights reserved.


  • MEMS
  • Micro-surgery
  • Stepper Motor
  • Thin films


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