Publications by Arash Arami | EPFL Graph Search

Related publications (28)

Improving activity recognition using a wearable barometric pressure sensor in mobility-impaired stroke patients

Kamiar Aminian, Anisoara Ionescu, Arash Arami, Fabien Massé

Background Stroke survivors often suffer from mobility deficits. Current clinical evaluation methods, including questionnaires and motor function tests, cannot provide an objective measure of the patients’ mobility in daily life. Physical activity performa ...

BioMed Central2015

Estimation of prosthetic knee angles via data fusion of implantable and wearable sensors

Kamiar Aminian, Roderik Berthelin, Arnaud Barré, Arash Arami

In this work, we studied a combination of embedded magnetic measurement system in a knee prosthesis and wearable inertial sensors to estimate two knee joint rotations namely flexion-extension and internal-external rotations. The near optimal sensor configu ...

2013

Implantable and wearable measurement system for smart knee prosthesis

Kamiar Aminian, Philippe Renaud, David Forchelet, Arash Arami

In this work we present the implantable and wearable measurement system developed for smart knee prostheses monitoring. The kinematic measurement system contains three anisotropic magnetoresistive sensors embedded into the polyethylene part of the prosthes ...

IEEE2014

A new method for internal-external rotation measurement in a prosthetic knee

Kamiar Aminian, Arash Arami

In this work, a magnetic measurement system was designed and tested to estimate the Internal-External rotation between the Tibial and Femural parts of a knee prosthesis. To obtain this, the sensors were inserted in polyethylene part while a permanent magne ...

2012

Accurate Measurement of Concurrent Flexion-Extension and Internal-External Rotations in Smart Knee Prostheses

Kamiar Aminian, Axelle Vallet, Arash Arami

In this work, we present a magnetic measurement system for integration into smart knee prostheses to accurately measure the combination of two knee rotations; namely Flexion- Extension and Internal-External rotations. This measurement system consists of tw ...

Institute of Electrical and Electronics Engineers2013

Accurate Internal-External Rotation Measurement in Total Knee Prostheses: a magnetic solution

Kamiar Aminian, Jenifer Cléa Miehlbradt, Arash Arami

In this work we tackled the problem of accurate measurement of internal–external (IE) rotations in the prosthetic knee. We presented a magnetic measurement system to be implanted in the knee prostheses in order to measure IE without soft tissue artifacts. ...

Elsevier2012

Patellar kinematics after knee arthroplasty: experimental validation of a numerical model

Dominique Pioletti, Kamiar Aminian, Alexandre Terrier, Brigitte Jolles-Haeberli, Arash Arami, Adeliya Latypova

Subject-specific modelling of Total Knee Arthroplasty could be an efficient method to preoperatively evaluate surgical options. In particular, the question of the necessity of patellar resurfacing is still a debatable issue. The aim of this work was to val ...

2014

Kinematics Estimation and Loosening Detection in Smart Knee Prostheses

Arash Arami

EPFL2014

A Robotic Glenohumeral Simulator for Investigating Prosthetic Implant Subluxation

Kamiar Aminian, Alexandre Terrier, Alain Farron, Matteo Mancuso, Arash Arami

Total shoulder arthroplasty (TSA) is an effective treatment for glenohumeral (GH) osteoarthritis. However, it still suffers from a substantial rate of mechanical failure, which may be related to cyclic off-center loading of the humeral head on the glenoid. ...

2019

Instrumented Knee Prosthesis for Force and Kinematics Measurements

Steve Tanner, Kamiar Aminian, Philippe Renaud, Catherine Dehollain, Arnaud Bertsch, Peter Ryser, Eric Meurville, Pierre-André Farine, Oguz Atasoy, Brigitte Jolles-Haeberli, Arash Arami, Willyan Hasenkamp Carreira, Shafqat Ali, Matteo Simoncini

In this work, we present the general concept of an instrumented smart knee prosthesis for in-vivo measurement of forces and kinematics. This system can be used for early monitoring of the patient after implantation and prevent possible damage to the prosth ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Reference-Free Automated Magnetic Sensor Calibration for Angle Estimation in Smart Knee Prostheses

Kamiar Aminian, Arash Arami, Julien David Rechenmann

In this work, we present a method for automated calibration of an implanted anisotropic magnetoresistive (AMR) sensor for measuring the internal-external rotation (IE) in a prosthetic knee without using any reference measurement. The measurement system con ...

Institute of Electrical and Electronics Engineers2014

Design and test of a MEMS strain-sensing device for monitoring artificial knee implants

Kamiar Aminian, Alexandre Terrier, Philippe Renaud, Arnaud Bertsch, Arash Arami, Willyan Hasenkamp Carreira

This paper describes the development of a polyimide-based MEMS strain-sensing device. Finite element analysis was used to investigate an artificial knee implant and assist on device design and to optimize sensing characteristics. The sensing element of the ...

Springer2013

Physical activity recognition via minimal in-shoes force sensor configuration

Kamiar Aminian, Arash Arami, Fabien Massé, Christopher Moufawad El Achkar

We propose a new minimal wearable system and a classifier for physical activity recognition. The configuration is solely based on two force sensors placed anteriorly and posteriorly under the feet. To find the optimal sensor configuration, we estimated the ...

IEEE2013

An Accurate Wearable Foot Clearance Estimation System: towards a real time measurement system

Kamiar Aminian, Arash Arami

This work presents an accurate, robust, wearable measurement system for foot clearance estimation along with algorithms to provide a real-time estimate of foot height and orientation. Different configurations of infrared distance meter sensors were used, b ...

Institute of Electrical and Electronics Engineers2017

An Implantable System for Angle Measurement in Prosthetic Knee

Kamiar Aminian, Hooman Dejnabadi, Arash Arami

In this work we designed and tested an in-vivo measurement system of prosthetic knee joint angles. The system included a small permanent magnet in the femoral part and three magneto resistance sensors placed in the polyethylene part. The sensor configurati ...

2011

Locally Linear Neuro-Fuzzy Estimate of the Prosthetic Knee Angle and its Validation in a Robotic Simulator

Kamiar Aminian, Arash Arami

Here we present a low-power magnetic measurement system based on only two Hall-effect elements and a permanent magnet integrated into a smart knee prosthesis to accurately measure knee flexion-extension. The smart prosthesis was tested in a robotic knee si ...

Institute of Electrical and Electronics Engineers2015

Enclosed Electronic System for Force Measurements in Knee Implants

Kamiar Aminian, Philippe Renaud, Arnaud Bertsch, Peter Ryser, Eric Meurville, David Forchelet, Arash Arami, Matteo Simoncini

Total knee arthroplasty is a widely performed surgical technique. Soft tissue force balancing during the operation relies strongly on the experience of the surgeon in equilibrating tension in the collateral ligaments. Little information on the forces in th ...

Mdpi Ag2014

Instrumented Prosthesis for Knee Implants Monitoring

Steve Tanner, Kamiar Aminian, Philippe Renaud, Catherine Dehollain, Arnaud Bertsch, Peter Ryser, Eric Meurville, Hooman Dejnabadi, Pierre-André Farine, Oguz Atasoy, Brigitte Jolles-Haeberli, Arash Arami, Willyan Hasenkamp Carreira, Shafqat Ali, Matteo Simoncini

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

Knee Implant Loosening Detection: A Vibration Analysis Investigation

Kamiar Aminian, Hossein Rouhani, Arash Arami

Knee implant loosening is mainly caused by the weakness of the prosthesis-bone interface and is the main reason for surgical revisions. However, pre-operative diagnosis is difficult due to lack of accurate tests. In this study, we developed a vibration-bas ...

Springer Verlag2018

Smart knee prosthesis kinematics estimation and validation in a robotic knee simulator

Kamiar Aminian, Arash Arami

In this work we present the smart knee prosthesis designed for in-vivo kinematics measurement and its validation in two knee simulators, i.e. a robotic knee simulator to provide realistic condition, and a manual simulator with more degrees of freedom. The ...

2014