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Analysis of Differential Mechanisms for a Robotic Head Stabilization System

[+] Author Affiliations
Adam Williams, Wael Saab, Pinhas Ben-Tzvi

Virginia Tech, Blacksburg, VA

Paper No. DETC2017-67371, pp. V05BT08A008; 9 pages
  • ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5B: 41st Mechanisms and Robotics Conference
  • Cleveland, Ohio, USA, August 6–9, 2017
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5818-9
  • Copyright © 2017 by ASME


This paper presents a robotic system intended to help automate the head and neck stabilization process performed on trauma patients through application of a differential apparatus, a device that distributes an input between multiple output channels. A system to streamline the head stabilization process can save valuable time in a life and death scenario, as well as play a key role in future work on a mobile stretcher robot. This investigation focuses on finding the most suitable device to accommodate multiple possible head positions while maintaining a steady force in order to provide secure motion restriction. After an initial review of current emergency medical services standards, a comparison of potential differential mechanisms is undertaken. Static analysis as well as dynamic modeling is performed in order to determine the most appropriate mechanisms. An initial prototype design incorporating a differential pulley, the most mechanically advantageous mechanism, is then introduced.

Copyright © 2017 by ASME
Topics: Robotics



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