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Hannes Bleuler

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Related publications (124)

Page 3 of 7

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

Hannes Bleuler, Roger Gassert, Dominique Chapuis

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

Towards multimodal Haptics for teleoperation: Design of a Tactile Thermal Display

Hannes Bleuler, Giulio Rognini, Laura Santos Carreras

Surgical robotics is among the most challenging applications of motion control. Present and future systems are essentially master-slave systems. Our work focuses on force-feedback and haptic interfaces. In this context, we study multimodal haptic interface ...

2012

A Haptic Interface with Motor/Brake System for Colonoscopy Simulation

Hannes Bleuler, Evren Samur, Ulrich Spälter, Lionel Flaction

Training for colonoscopy, which is the examination and treatment of the colon, is often performed on real patients once the physician has passed the novice level. This increases the risk to the patient and lengthens the procedure time. Since a decade ago, ...

2008

Four-Arm Manipulation via Feet Interfaces

Aude Billard, Hannes Bleuler, Mohamed Bouri, Walid Amanhoud, Jacob Hernandez Sanchez, Anaïs Betsabeh Haget

We seek to augment human manipulation by enabling humans to control two robotic arms in addition to their natural arms using their feet. Thereby, the hands are free to perform tasks of high dexterity, while the feet-controlled arms perform tasks requiring ...

AAAI2019

Development and Comparison of Foot Interfaces for Controlling a Robotic Arm in Surgery

Hannes Bleuler, Mohamed Bouri, Elahe Abdi

Currently available foot interfaces to command an external assistive robotic arm for laparoscopic surgery typically consist of a couple of push buttons placed on a planar platform. In this paper, we develop and compare two foot interfaces implementing isot ...

IEEE2018

Ligament balancing in TKA: Evaluation of a force-sensing device and the influence of patellar eversion and ligament release

Hannes Bleuler, Thomas Maeder, Denis Crottet

Ligament balancing in total knee arthroplasty may have an important influence on joint stability and prosthesis lifetime. In order to provide quantitative information and assistance during ligament balancing, a device that intraoperatively measures knee jo ...

Elsevier2007

Visual and Force Feedback Time-Delays Change Telepresence: Quantitative Evidence from Crossmodal Congruecy Task

Olaf Blanke, Hannes Bleuler, Michiel van Elk

In the field of surgical robotics, it is difficult to find objective assessment techniques for evaluating telepresence. In this study we try to merge the concepts from cognitive neuroscience more specifically from the field of tool incorporation (embodimen ...

Ieee2013

Principles and Test Result of Novel Full Passive Magnetic Levitation Motor with Diamagnetic Disk

Hannes Bleuler

This paper proposes a novel full passive magnetic levitation motor without active magnetic suspension. It has a magnetic levitation unit and a motor unit. The Halbach array permanent magnets and a pyrolytic graphite (PG) disk realize the full passive magne ...

IEEE2021

Influence of an Assistive Hip Orthosis on Gait

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

Powered orthoses are leading to an imminent change in the field of assistance. The major challenges faced by the technology concern the management of the interaction between the user and the wearable device and the coordination between the user intention a ...

Springer International Publishing Ag2017

Mechanisms for actuated assistive hip orthoses

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

Mobility is often a central problem for people having muscle weaknesses. The need for new devices to assist walking and walk related activities is therefore growing. Lower limb actuated orthoses have already proven their positive impact with paraplegic pat ...

Elsevier2014

Series Elastic Actuation for Assistive Orthotic Devices: Case Study of Pneumatic Actuator

Hannes Bleuler, Mohamed Bouri, Jonathan Olivier, Amalric Louis Ortlieb

Wearable assistive robotics is a modern field where intelligent actuated systems work in collaboration with the body to replace a lost limb, to enhance performances (e.g. carrying load, walking, running, jumping) or to train or rehabilitate specific activi ...

Springer-Verlag Berlin2016

Development of a 2-DOF Electrostatic Haptic Joystick for MRI/fMRI Applications

Hannes Bleuler, Roger Gassert, Dominique Chapuis

This paper describes the development of a 2-DOF electrostatic haptic joystick designed for neuroscience studies in an MRI/fMRI. The joystick is fabricated using non-magnetic materials and actuated by two high-power electrostatic motor units which produce v ...

2009

Preliminary Study: Effects of Visual Distortion on Standing Balance Motion Amplitude and Visual Dependency on an Unstable Surface

Olaf Blanke, Hannes Bleuler, Mohamed Bouri, Jemina Fasola

Visual feedback is a common method to enhance motor learning and is widely used in rehabilitation institutes. Although balance training with visual feedback has shown positive results, the most effective way to provide the feedback is still open to researc ...

2018

Climbing robot with thermal glue

Francesco Mondada, Hannes Bleuler, Frédéric Rochat

Climbing robots require an adhesion principle in order to overcome gravity. Many physical principles have been used. In this work, the use of thermal glue is proposed. The implementation of miniature thermal glue dispenser is presented with experimental re ...

World Scientific2011

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

Hannes Bleuler

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

Mechanical positioning system for surgical instruments

Hannes Bleuler, Reymond Clavel, Ricardo Daniel Rita Beira

An external manipulator for positioning surgical instruments within the abdominal cavity, comprising a hybrid kinematics with a parallel structure, able to provide four, active or passive, positional degrees of freedom to a endoscopic unit, placed in the d ...

2012

Mechanical manipulator for surgical instruments

Hannes Bleuler, Reymond Clavel, Ricardo Daniel Rita Beira

A novel mechanical system, based on a new cable driven mechanical transmission, able to provide sufficient dexterity, stiffness, speed, precision and payload capacity to actuate multi-DOF micro-manipulators. Besides the possibility of being used in several ...

2012

Haptics based multi-level collaborative steering control for automated driving

Hannes Bleuler, Jürg Alexander Schiffmann, Robert Fuchs, Tomohiro Nakade

Increasing the capability of automated driving vehicles is motivated by environmental, productivity, and traffic safety benefits. But over-reliance on the automation system is known to cause accidents. The role of the driver cannot be underestimated as it ...

2023

The MarXbot, a Miniature Mobile Robot Opening new Perspectives for the Collective-robotic Research

Francesco Mondada, Hannes Bleuler, Michael Bonani, Stéphane Magnenat, Philippe Rétornaz, Florian Christopher Vaussard, Valentin Longchamp, Daniel Burnier

Collective and swarm robotics explores scenarios involving many robots running at the same time. A good platform for collective-robotic experiments should provide certain features among others: it should have a large battery life, it should be able to perc ...

IEEE Press2010

Magnetic wheels optimization and application to the MagneBike climbing robot

Francesco Mondada, Hannes Bleuler, Frédéric Rochat, Patrick Schoeneich, Fabien Tâche

Magnetic wheels are a powerful solution to design inspection climbing robots with excellent mobility. Magnetic wheels optimization based on simulations and the results that were obtained on prototypes are presented. The measured adhesion was doubled betwee ...

World Scientific2010