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Middle ear surgery requires micro-surgical techniques and may benefit from robotic assistance. A prototype of tele-operated system is presented. Methods to determine design specifications, kinematic structure and optimization of the micro-manipulator are described. First evaluation of the robot by a stapedial removal through the external auditory meatus in(More)
CONCLUSION The use of an invasive marker in the ipsilateral temporal bone with mid-facial skin contouring for registration improved the position accuracy (PA) to levels required for otological and neuro-otological procedures. OBJECTIVE The aim of this study was to compare the PA after skin contouring with the combination of anatomic landmarks or a local(More)
The tele-operated system with three arms for the microsurgery of the middle ear is composed of an operator console from where the surgeon tele-operates three robotized arms that hold surgery tools with a high level of accuracy. The main difference between these micromanipulators and the conventional minimal-invasive surgery robots is the increased field of(More)
The aim of this study was to assess the surgical feasibility of a transmodiolar approach via the middle ear cavity for an auditory nerve implantation in humans. In the first part of the study, 6 adult human temporal bones underwent a navigator-guided transmodiolar implantation via the middle ear space after a radical mastoidectomy. In the second part, 122(More)
Computer-assisted navigation systems can now potentially guide the surgeon to the cochlea with a trajectory avoiding the facial nerve through a keyhole approach. Five temporal bone specimens, with 4 titanium screws placed in the mastoid cortex, were studied. Preoperative computed tomographic scan images were loaded on an electromagnetic computer-assisted(More)
The tele-operated system with three arms for the microsurgery of the middle ear is composed of an operator console from where the surgeon tele-operates three robotized arms that hold surgery tools with a high level of accuracy. The main difference between these micromanipulators and the conventional minimally-invasive surgery robots is the increased field(More)
RobOtol is a micro-surgical tele operated system designed to assist middle ear surgery. A new prototype, with an improved controller system and mechanical enhancement is presented. Surgeons and engineers evaluated the robot by tasks specific to middle ear surgery with two command modes (position-velocity and position-position) and by questionnaires. There(More)
CONCLUSION The use of the bone anchoring device associated with a fiducial marker, both fixed close to the operating field, improves the reproducibility and effectiveness of the computer-assisted navigation in lateral skull base surgery. OBJECTIVES Computer-assisted navigation in lateral skull base surgery using the electromagnetic system Digipointeur(®)(More)
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