title: Accurate modeling and positioning of a magnetically controlled catheter tip.
abstract: OBJECTIVE
  This paper represents the initial phase of a proposed operator-friendly semiautomatic method for positioning and directing an intravascular three-magnet tip catheter in the human heart using an electromagnetic system.
  
  
  METHODS
  A predictive computer algorithm based on a comprehensive mathematical model is developed, which accurately calculates the magnetic field generated by the electromagnet system as well as the magnetic torques and forces exerted on a three-magnet tip catheter, and generates the necessary electromagnet currents for arbitrary displacement and deflection of the catheter tip within a workspace of 128 × 128 × 128 mm.
  
  
  RESULTS
  We demonstrate the ability of the developed mathematical model to accurately position a three-magnet tip catheter within the 128 × 128 × 128 mm workspace of a 3D eight-electromagnet system.
  
  
  CONCLUSIONS
  The ability of the developed mathematical model in predicting the displacement, direction, and deflection of the catheter tip as a function of the electromagnet current values has been verified through experimental results.
authors: Electron Science Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia.
authors: Vi N T
authors: VN
authors: Le
authors: Electron Science Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia.
authors: Nghia H
authors: NH
authors: Nguyen
authors: Electron Science Research Institute, Edith Cowan University, Joondalup, WA 6027, Australia.
authors: Kamal
authors: K
authors: Alameh
authors: Point Place Ltd., Mosman Park, WA 6012, Australia.
authors: Rukshen
authors: R
authors: Weerasooriya
authors: Point Place Ltd., Mosman Park, WA 6012, Australia.
authors: Peter
authors: P
authors: Pratten
mesh_terms: D055590:Electromagnetic Phenomena; D004867:Equipment Design; D006801:Humans; D060526:Magnetic Fields; D008962:Models, Theoretical; D009038:Motion; D062666:Vascular Access Devices