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Hannes Bleuler

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Publications associées (125)

Visuo-tactile integration and body ownership during self-generated action

Hannes Bleuler, Olaf Blanke, Jane Aspell, Giulio Rognini, Ali Sengül, Roy Salomon

Although there is increasing knowledge about how visual and tactile cues from the hands are integrated, little is known about how self-generated hand movements affect such multisensory integration. Visuo-tactile integration often occurs under highly dynami ...

Wiley-Blackwell2013

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

Hannes Bleuler, Olaf Blanke, 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

Force feedback facilitates multisensory integration during robotic tool use

Hannes Bleuler, Olaf Blanke, Jane Aspell, Giulio Rognini, Ali Sengül, Michiel van Elk

The present study investigated the effects of force feedback in relation to tool use on the multisensory integration of visuo-tactile information. Participants learned to control a robotic tool through a surgical robotic interface. Following tool-use train ...

Springer2013

New horizons for patient safety: LIGRA (LIfe Guard for Robotic surgery Assistance) An interactive platform centralizing information and control in robotic surgery Operating Rooms

Hannes Bleuler

The present paper describes LIGRA, an innovative technological solution developed in the context of the SAFROS co-funded EU project. Its general goal is to improve patient safety during minimal invasive robotic surgery. Focusing on the risks introduced in ...

Ieee2013

Role of Holographic Displays and Stereovision Displays in Patient Safety and Robotic Surgery

Hannes Bleuler, Telmo David Ribeiro Da Costa

In this study, the role of different 3D vision systems on the patient safety in the context of robotic surgery was studied. Clearly safety is the foremost importance in all surgical procedures. It is well studied in the clinical surgical procedures but the ...

Springer-Verlag Berlin2013

Development of an Assistive Motorized Hip Orthosis

Hannes Bleuler, Reymond Clavel, Mohamed Bouri, 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

Extending the body to virtual tools using a robotic surgical interface: evidence from the crossmodal congruency task

Hannes Bleuler, Olaf Blanke, Jane Aspell, Giulio Rognini, Ali Sengül, Michiel van Elk

The effects of real-world tool use on body or space representations are relatively well established in cognitive neuroscience. Several studies have shown, for example, that active tool use results in a facilitated integration of multisensory information in ...

Public Library of Science2012

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

Hannes Bleuler, Laura Santos Carreras, Giulio Rognini

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

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

Tactile Feedback Improves Performance in a Palpation Task: Results in a VR-Based Testbed

Hannes Bleuler, Roger Gassert, Kaspar Leuenberger, Evren Samur, Laura Santos Carreras

Robotic surgery provides many benefits such as reduced invasiveness and increased dexterity. This comes at the cost of no direct contact between surgeon and patient This physical separation prevents surgeons from performing direct haptic exploration of tis ...

Mit Press2012

Screening of the factors influencing frictional interactions between a cylindrical tip and the cardiac wall using factorial analysis

Hannes Bleuler, Lionel Flaction, Giulio Rognini, Bandar Muntazar Hakim

Knowledge of frictional forces acting on the tips of minimally invasive medical devices is important in the design and simulation of such devices. Moreover, several studies have shown that uncontrolled frictional forces can induce damage to organs. The goa ...

Elsevier2012

Ergonomic handle for haptic devices

Hannes Bleuler, Ricardo Daniel Rita Beira

A ergonomic handle that can be added to existing haptic devices, composed by a spherical mechanism providing hand orientation and a grasping mechanism is shown. Both the proposed spherical mechanism and the handle have been ergonomically designed to avoid ...

2012

Physical interactions in swarm robotics: the hand-bot case study

Francesco Mondada, Hannes Bleuler, Stéphane Magnenat, Michael Bonani, Philippe Rétornaz

This paper presents a case-study on the performance achieved by the mechanical interactions of self-assembling mobile robots. This study is based on the hand-bot robot, designed to operate within heterogeneous swarms of robots. The hand-bot is specialized ...

Springer2012

Study of polyvinylidene fluoride (PVDF) based bimorph actuators for laser scanning actuation at kHz frequency range

Hannes Bleuler, Ricardo Pérez Suárez

This work focuses on some promising applications of polyvinylidene fluoride (PVDF) based bimorph actuators in microengineering. The actuator of several centimeters in length and 100 mu m in thickness takes advantage of the structural and electromechanical ...

Elsevier Science Sa2012

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

Tubulo II: magnetic climbing inchworm for inspection of boiler tubes

Francesco Mondada, Hannes Bleuler, Frédéric Rochat, Olivier Truong-Dat Nguyen, Patrick Schoeneich

TUBULO II is a climbing inspection robot with for inner inspection of boiler tubes. Its locomotion principle is the inchworm type. The adhesion is realized with Magnetic Switchable Device [1]. The inner is able to operate within a tube of inner bore diamet ...

World Scientific2011

Cy-mag3D: a simple and miniature climbing robot with advance mobility in ferromagnetic environment

Francesco Mondada, Roland Moser, Hannes Bleuler, Frédéric Rochat, Patrick Schoeneich, Barthélémy Lüthi

Purpose - The purpose of this paper is to present a novel miniature magnetic climbing robot for industrial inspection. The robot has high mobility with low complexity. ...

2011

Survey on Surgical Instrument Handle Design: Ergonomics and Acceptance

Hannes Bleuler, Roger Gassert, Laura Santos Carreras

Minimally invasive surgical approaches have revolutionized surgical care and considerably improved surgical outcomes. The instrumentation has changed significantly from open to laparoscopic and robotic surgery with various usability and ergonomics qualitie ...

2011

Experimental Evaluation of a Haptic Interface for Endoscopic Simulation

Hannes Bleuler, Lionel Flaction, Evren Samur

The main goal of virtual reality based surgery simulators with haptic feedback is to provide an alternative to traditional training methods on animals, cadavers or real patients. Haptic feedback is a key feature for every surgery simulator for the training ...

2011

Tremo: an inspection climbing inchworm based on magnetic switchable device

Francesco Mondada, Hannes Bleuler, Frédéric Rochat, Ricardo Daniel Rita Beira

TREMO is a compact magnetic climbing inchworm with the capability to move in complex ferromagnetic environments. The robot fits inside a cylinder of 500 mm in height and 120 mm in diameter for an approximate weight of 800 g. It has a modular configuration ...

World Scientific2011

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