Peter Ryser

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Publications associées (68)

Instrumented Prosthesis for Knee Implants Monitoring

Kamiar Aminian, Philippe Renaud, Pierre-André Farine, Peter Ryser, Catherine Dehollain, Arnaud Bertsch, Eric Meurville, Brigitte Jolles-Haeberli, Arash Arami, Steve Tanner

In this work we present an instrumented smart knee prosthesis for in-vivo measurement of forces and kinematics. Studying the constraints, we designed minimal sensory systems to be placed in the polyethylene part of the prosthesis. The magnetic sensors and ...

IEEE2011

Integrated SMD pressure/flow/temperature multisensor for compressed air in LTCC technology: Thermal flow and temperature sensing

Peter Ryser, Thomas Maeder, Yannick Sébastien Fournier, Nicolas Craquelin, Jean-Bastien Coma

In this work, we present and analyse the flow-sensing part of a recently-developed multisensor in LTCC (low- temperature co-fired ceramic) technology; this device integrates flow / pressure / temperature sensing and is designed for diagnostics monitoring o ...

Elsevier2011

Low-firing thick-film piezoresistive sensors for medical instruments

Peter Ryser, Thomas Maeder, Caroline Jacq

In this work, a low-firing thick-film materials system allowing fabrication of piezoresistive sensors on surgical alloys is presented in detail, with application to a force-sensing surgical instrument. The system comprises a series of individual thick-film ...

Elsevier2011

Fabrication of Polymer-Based Micro Devices: Formulation and Study of the Paste

Peter Ryser, Thomas Maeder, Nathalie Sophie Adeline Serra, Olivier Gentsch

We investigate in the present work the fabrication of polymer-based micro-fluidic and micro-mechanical devices using sacrificial, resistive/conductive pastes, through a screen-printing process. An organic sacrificial paste is first screen-printed onto a su ...

Elsevier2011

A viscosity-dependent affinity sensor for continuous monitoring of glucose in biological fluids

Peter Ryser, Jean-Michel Sallese, Eric Meurville, Christophe Boss

We present a viscometric affinity biosensor for continuous monitoring of glucose in biological fluids such as blood and plasma. The sensing principle of this chemico-mechanical sensor is based upon the viscosity variation of a sensitive fluid with glucose ...

Elsevier2011

MULTI-ANALYTE DETECTION FOR BIOLOGICAL FLUIDS Towards Continous Monitoring of Glucose, Ionized Calcium and pH using a Viscometric Affinity Biosensor

Peter Ryser, Eric Meurville, Christophe Boss, Frédéric Schmitt, Pablo Dosil Rosende

We present a viscometric affinity biosensor that can potentially allow continuous multi-analyte monitoring in biological fluids like blood or plasma. The sensing principle is based on the detection of viscosity changes of a polymeric solution which has a s ...

SciTePress2011

Transport properties of nonhomogeneous segregated composites

Peter Ryser, Claudio Grimaldi, Thomas Maeder, Gianluca Ambrosetti, Biagio Nigro

In conductor-insulator composites in which the conducting particles are dispersed in an insulating continuous matrix the electrical connectedness is established by interparticle quantum tunneling. A recent formulation of the transport problem in these kind ...

2011

Structuration of the low temperature co-fired ceramics (LTCC) using novel sacrificial graphite paste with PVA–propylene glycol–glycerol–water vehicle

Peter Ryser, Thomas Maeder, Caroline Jacq

A novel formulation for thick-film graphite sacrificial pastes is studied in this paper. It is composed of coarse graphite powder (grain size: 25 μm), dispersed in a vehicle consisting of polyvinyl alcohol (PVA) dissolved in a propylene glycol (PG)–glycero ...

Elsevier2011

Formulation of composite resistive pastes for fabrication of micro-heaters

Peter Ryser, Thomas Maeder, Nathalie Sophie Adeline Serra, Pierre Lemaire

We investigate in this work the formulation of composite resistive pastes based on epoxy resins and graphite for micro-heater manufacturing via thick-film technology. These resistive pastes are designed for screen-printing onto a printed circuit board (PCB ...

Elsevier2010

Automated characterization of dextran/concanavalin A mixtures-A study of sensitivity and temperature dependence at low viscosity as basis for an implantable glucose sensor

Peter Ryser, Eric Meurville

Mixtures of aqueous solutions of dextran and concanavalin A have a potential use as glucose sensing substances. We investigate these mixtures at low viscosities which are especially advantageous for miniature mechanical glucose sensing devices. The glucose ...

Elsevier2010

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