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Reymond Clavel

Cette personne a quitté l’EPFL

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Publications associées (44)

Page 2 sur 3

The WalkTrainer, a New Generation of Walking Reeducation Device Combining Orthoses and Muscle Stimulation

Mohamed Bouri, Reymond Clavel, Patrick Métrailler, Jacques Fournier

This paper presents a novel reeducation device for paraplegics that combines hybrid orthoses and closed-loop electrical muscle stimulation. Based on the so called Cyberthosis concept, the WalkTrainer enables an active muscular participation of the subject ...

2009

Development and integration of high straightness flexure guiding mechanisms dedicated to the METAS watt balance Mark II

Reymond Clavel, Florent Cosandier

There is a firm will in the metrology community to redefine the kilogram in the International System of units by linking it to a fundamental physical constant. The watt balance is a promising way to link the mass unit to the Planck constant h. At the Feder ...

Iop Publishing Ltd2014

Pelvic Motion Implementation on the WalkTrainer

Mohamed Bouri, Reymond Clavel, Patrick Métrailler, Jacques Fournier

Pelvic motion is of great importance when walking, and have thus to be taken into account while developing rehabilitation robotics. This paper describes the implementation of a pelvic motion amplitude prediction model on a pelvic orthosis and tests on vali ...

2007

The WalkTrainer: A Robotic System for Walking Rehabilitation

Mohamed Bouri, Reymond Clavel, Patrick Métrailler, Jacques Fournier

Standard reeducation methods for paraplegic people rely on manual or robotic mobilization on a treadmill. However in both cases the motion is generated by an exterior force, the training is thus called passive. In this context the Swiss Fondation for Cyber ...

2007

Design and Calibration of Ultra-high-precision Industrial Robots

Reymond Clavel, Murielle Richard, Emanuele Lubrano

In this paper we present the key phases to design and calibrate ultra-high-precision industrial robots (i.e. submicrometric precision robots). The first part of our study will cover the robot design aspects, from the choice of the kinematics with the help ...

Institute of Electrical and Electronics Engineers2012

The WalkTrainer™: A Robotic System for Walking Rehabilitation*

Mohamed Bouri, Reymond Clavel, Patrick Métrailler, Carl Schmitt

Robots are excellent tools for providing motion. Their motion is precise, stiff and as repeatable as we need. This led the Swiss Foundation for Cyberthosis (SFC) to exploit robotics jointly with the muscle electrostimulation as intelligent rehabilitation d ...

2006

Modeling and compensation of cutting-forces generated during the EDM process for ultra high-precision robots

Reymond Clavel, Emanuele Lubrano

This work deals with the calibration of industrial robots operating at sub-micrometric precision. We demonstrate that the cutting-forces generated by the robot manufacturing process cause a significant deformation of the robot geometry, lo- wering its abso ...

VDE Verlag GMBH2010

Improving the accuracy of the 5-axis parallel kinematics machine-tool Hita-STT (Stiffness Tracking Technology)

Reymond Clavel

The Hita-STT is a five-axis parallel kinematics machine-tool designed for machining and polishing complex parts for applications in medical, automotive components, watch industries. The kinematics of Hita-STT prototype presents an over-constrained design i ...

2006

Growth of doped silicon nanowires by pulsed laser deposition and their analysis by electron beam induced current imaging

Reymond Clavel, Johann Michler

Doped silicon nanowires (NWs) were epitaxially grown on silicon substrates by pulsed laser deposition following a vapour-liquid-solid process, in which dopants together with silicon atoms were introduced into the gas phase by laser ablation of lightly and ...

2011

A Ball-Screw Driven Motorized Hip Orthosis

Hannes Bleuler, Mohamed Bouri, Reymond Clavel, Amalric Louis Ortlieb, Jeremy Olivier

In this paper we present a motorized hip orthosis to assist elderly people while walking, stair climbing and during the sit-to-stand transitions. The design is based on biomechanics considerations. Ranges of motion, velocities and torques of the hip joint ...

2014

The Linear Delta: Developments and Applications

Mohamed Bouri, Reymond Clavel

IEEE2010

Dionis: A novel remote-center-of-motion parallel manipulator for Minimally Invasive Surgery

Hannes Bleuler, Reymond Clavel, Giulio Rognini, Laura Santos Carreras

The large volume and reduced dexterity of current surgical robotic systems are factors that restrict their effective performance. To improve the usefulness of surgical robots in minimally invasive surgery (MIS), a compact and accurate positioning mechanism ...

Ios Press2011

Clinical Trials with the WalkTrainer: Preliminary Results

Mohamed Bouri, Reymond Clavel, Patrick Métrailler, Jacques Fournier

Robotic devices are well suited for providing motion to the patient and information (positions, forces, etc.) to the therapist. The FSC and LSRO are combining their effort in the development of robotic re-education devices, focusing on active rehabilitatio ...

2008

Design of a miniature laser scanning head for high-bandwidth, low-amplitude beam steering

Yves Bellouard, Reymond Clavel

In laser micro-manufacturing, one of the challenges is to achieve fast scanning speed for fast fabrication of complex 3D microstructures. For microstructures with nanoscale features, it is often desirable to steer laser beams from a few microns to a few te ...

2012

Development of an Assistive Motorized Hip Orthosis

Hannes Bleuler, Mohamed Bouri, Reymond Clavel, Jeremy Olivier, Amalric Louis Ortlieb

With the increase of life expectancy, a higher number of elderly need assistance to maintain their mobility and their independance. The hip joint is crucial for walking and is problematic for a large number of aged people. In this paper we present a novel ...

2013

Modular methodology to design high precision parallel robots and application to a 5-Degree of Freedom flexure-based manipulator

Reymond Clavel, Murielle Richard

This paper presents a novel modular methodology to design ultra-high precision parallel robots. It chiefly aims at significantly decreasing both the complexity of their synthesis and their development time. This approach can be compared to a robotic Lego®, ...

2012

Design of the new METAS watt balance experiment Mark II

Reymond Clavel, Florent Cosandier

The kilogram is the last unit of the international system of units (SI) still based on a material artefact, the international prototype of the kilogram (IPK). The comparisons made in the last hundred years have clearly revealed a long-term relative drift b ...

Iop Publishing Ltd2013

Calibration of the 5-dof parallel kinematics HITA-STT

Reymond Clavel

The parallel kinematics machine tool HITA-STT (Stiffness Tracking Technology) developed by Willemin–Machines S.A. and EPFL is now able to machine. This machine can reach accelerations of 5g. It is characterized by a tilt of ± 60° around the B-axis. This ch ...

2004

A new concept of parallel robot for rehabilitation and fitness, The Lambda

Mohamed Bouri, Reymond Clavel

A new rehabilitation and fitness robot called the “Lambda Robot” is presented. This paper introduces a concept of a parallel robot that may be used for mobilization of the lower extremities. Hence, it may be used for fitness as well as for rehabilitation f ...

2009

Compensation of thermal effects and cutting-forces acting on ultra high-precision robots

Reymond Clavel, Emanuele Lubrano

While dealing with sub-micrometric precision robots, all the events that can deform the robot structure or change its physics proprieties cause a loss of accuracy. In this paper we will focus on two significant issues: the first is the thermal changes acti ...

Messe Bremen-Hvg Hanseatische Veranstaltungs-Gmbh, Findorffstrasse 101, Bremen, 28215, Germany2010