Multi-objective Optimization of a Reconfigurable Spherical Parallel Mechanism for Tele-Operated Craniotomy

Terence Essomba, Juan Sandoval, Med Amine Laribi, Said Zeghloul

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Scopus citations

Abstract

The practice of neurosurgery sometime requires to open a large space through the skull. The drilling operation is called craniotomy. The neurosurgeon needs to use specific surgical drill to perform this task. The high dexterity required for this operation has justified the development of robotic system for the manipulation of craniotomy instruments. A series of motion capture and force experimentation on Human cadavers have been carried out to collect kinematic and force data for the definition of a mechanical architecture specification. A 3-RRR Spherical Parallel Mechanism is proposed for the manipulation of the neurosurgical drill. This mechanism is modified by adding a variable parameter that changes the configuration of its base. Three pantographic mechanisms are integrated to control this variable parameter. The mechanism is optimized to generate the highest kinematic performance and the lowest motor torque to generate the minimum required drilling force. A series of kinematic simulation reveals that the introduction of the new reconfiguration parameter can improve both the dexterity and the force transmission of the mechanism.

Original languageEnglish
Title of host publicationMechanisms and Machine Science
PublisherSpringer Netherlands
Pages454-464
Number of pages11
DOIs
StatePublished - 2020

Publication series

NameMechanisms and Machine Science
Volume78
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Keywords

  • Craniotomy
  • Motion capture
  • Optimization
  • Reconfigurable mechanism
  • Spherical parallel mechanism

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