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Hannes Bleuler

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Publications associées (125)

Active Mechatronic Interface for Haptic Perception Studies with Functional Magnetic Resonance Imaging: Compatibility and Design Criteria

Hannes Bleuler, Roger Gassert, Dominique Chapuis, Etienne Burdet

Functional brain exploration methodologies such as functional magnetic resonance imaging (fMRI) are critical tools to study perceptual and cognitive processes. In order to develop complex and well-controlled fMRI paradigms, researchers are interested in us ...

2006

A 2-DOF Friction Drive for Haptic Surgery Simulation of Hysteroscopy

Hannes Bleuler, Ulrich Spälter, Evren Samur

2006

A Versatile MRI/fMRI Compatible Spherical 2-Dof Haptic Interface

Roland Moser, Hannes Bleuler, Roger Gassert, Dominique Chapuis, Ulrich Spälter

2006

Spark Assisted Chemical Engraving (SACE) machining – a versatile alternative micro-machining technology

Rolf Wüthrich, Hannes Bleuler

2006

Investigation of a Cable Transmission for the Actuation of MR Compatible Haptic Interfaces

Hannes Bleuler, Roger Gassert, Dominique Chapuis, Ganesh Gowrishankar, Etienne Burdet

This paper investigates a cable transmission to remotely actuate MR compatible robots over a distance of several meters. Such a transmission could be an interesting solution for haptic interfaces for neuroscience studies performing force feedback during fu ...

2006

The current signal in Spark Assisted Chemical Engraving (SACE), what does it tell us ?

Rolf Wüthrich, Hannes Bleuler, Ulrich Spälter

Spark-assisted chemical engraving (SACE) is a promising micro-machining technology for the low-cost machining of holes and channels in non-conducting materials, such as glass and some ceramics. Despite the complexity of SACE due to the interdependency of t ...

2006

A 2-DOF fMRI compatible haptic interface to investigate the neural control of arm movements

Hannes Bleuler, Roger Gassert, Dominique Chapuis, Olivier Lambercy, Ludovic Dovat, Yves Ruffieux, Etienne Burdet

This paper describes a two-degrees-of-freedom haptic interface to investigate the brain mechanisms of human motor control, which is capable of safely and gently interacting with human arm motion during functional magnetic resonance imaging (fMRI). A hydros ...

2006

Material removal rate in Spark Assisted Chemical Engraving (SACE) machining – Limiting factors

Rolf Wüthrich, Hannes Bleuler, Ulrich Spälter

2006

Actuation Methods for Applications in MR Environments

Hannes Bleuler, Roger Gassert, Dominique Chapuis, Ludovic Dovat, Etienne Burdet

The choice of an adequate actuation method is a central issue in the development of any mechatronic device and strongly determines the dynamic performances of the system. This choice is particularly difficult for robotic systems working within a magnetic r ...

2006

Preliminary Investigations on a Diamagnetically Levitated Linear Conveyor

Roland Moser, Hannes Bleuler, Laurent Sache, Dominique Chapuis, François Barrot, Thomas Bosgiraud

Diamagnetic levitation is the only passive levitation at room temperature. It is interesting to use this principle for a contactless conveyor in applications where friction and wear-particle contamination should be avoided such as in a microfactory. Using ...

2006

Advances in Precise Positioning Using the Electrostatic Glass Motor

Roland Moser, Hannes Bleuler

This paper reports the continuation of the authors' work in the field of linear and rotary submicrometric positioning using electrostatic glass motors. Electrostatic glass motors, a recent development where a glass rotor, once polarized using a static elec ...

2005

Multi-Joint Arm Movements to Investigate Motor Control with fMRI

Hannes Bleuler, Roger Gassert, Ludovic Dovat, Etienne Burdet

Performing multi-joint arm movements in controllable dynamic environments during functional magnetic resonance imaging (fMRI) could provide important insights into the brain mechanisms involved in human motor control and related dysfunctions. In order to o ...

2005

Spark Assisted Chemical Engraving – A technology for rapid prototyping micro-fluidic devices

Rolf Wüthrich, Hannes Bleuler, Ashwin Lal, Ulrich Spälter

2005

Spark assisted chemical engraving (SACE) in microfactory

Rolf Wüthrich, Hannes Bleuler

Spark assisted chemical engraving (SACE) is a method for 3D microstructuring of glass or other non-conductive materials with high aspect ratio and smooth surface quality. It is applicable for rapid prototyping of microfluidic devices, for MEMS interfacing ...

2005

Bubble evolution on a vertical electrode under extreme current densities

Rolf Wüthrich, Hannes Bleuler, Christos Comninellis

Under gas evolution, the current voltage characteristics of an electrochemical cell are strongly affected by the presence of growing bubbles. At high current densities, the evolution of the bubbles becomes the rate limiting step of the electrochemical proc ...

2005

Knot-tying with Visual and Force Feedback for VR Laparoscopic Training

Hannes Bleuler, Fei Wang, Etienne Burdet

Real-time simulation of thread and knot-tying with visual and force feedback is an essential part of virtual reality laparoscopic training. This paper presents a physics-based thread simulator that enables realistic knot tying at haptic rendering rate. The ...

2005

Development of a force amplitude- and location-sensing device designed to improve the ligament balancing procedure in TKA

Thomas Maeder, Hannes Bleuler, Denis Crottet

A force-sensing device to intraoperatively measure knee joint forces and moments to improve the ligament balancing procedure during total knee arthroplasty has been developed. It consists of two sensitive plates, one for each condyle, a tibial base plate a ...

2005

Spark Assisted Chemical Engraving (SACE) machining – Haptic device for the operator

Rolf Wüthrich, Hannes Bleuler, Ulrich Spälter

2005

Device for measuring tibio-femoral force amplitudes and force locations in total knee arthroplasty

Thomas Maeder, Hannes Bleuler, Denis Crottet, Caroline Jacq

Probe (1) used during a total knee arthroplasty for measuring forces and locations of their points of application and thereby moments comprising A) two load sensitive plates (2 3) apt to be inserted in one joint-compartment of a knee joint each and each be ...

2005

Micro-usinage de verre avec décharges électrochimiques

Rolf Wüthrich, Hannes Bleuler, Christos Comninellis, Erika Herrera Calderon

2005

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