MoRehab XR

MoRehab XR

MoRehab XR

Motion tracked rehabilitation through extended realities

Project Info

Start date:
August 2020

End date:
July 2023

Funding:

Coordinator:
Artanim

Summary

After a stabilization surgery or a traumatic accident, physical rehabilitation is often required to restore the joint’s normal function. This process requires very regular and repetitive training sessions. The regularity and involvement of the patient being critical for success of the procedure, maintaining them interested and motivated while repeating similar exercises over and over is one of the main challenges of the physical therapist. During these sessions, it is also difficult to objectively monitor small progresses or the lack of the latter. On the other end of the spectrum, some video games have proved to be very effective in motivating people to perform pretty repetitive tasks on their controllers in order to travel through a story or a challenge.

The goal of this project is to use the captivating capabilities of video games to entertain and motivate the patients through their rehabilitation, by designing a set of “exercise games” (called exergames) that will be won by performing the correct routines required for a proper physical rehabilitation. Through the use of modern motion tracking technology, the exergames will also be able to track the evolution of the physical recovery of the patients on a session per session basis, to adapt the challenges that the patients will face based on their needs and actual capacities, and if need be to alert the medical personnel early if some problems persist, or if no progresses are observed.

In this project, Artanim is in charge of building a platform suitable for these exergames, as well as designing and developing these exergames, and implementing the tools for a standard assessment of the patient’s performance. On the other hand, the medical usability and validity of the setup and exergames will be tested and assessed by the clinical team of La Tour Hospital over a large set of voluntary patients. Both teams will also work together to develop metrics to evaluate and adapt the patient’s performance during the sessions, thanks to the extended capabilities of the motion tracking system with respect to the data available in conventional physical therapy.

Partners

Artanim
Conception of the exergames and of a platform adapted to perform them, development of a set of medical scores adapted to the extended capabilities of the motion tracking system

La Tour Hospital – Division of Orthopedic and Trauma Surgery
Clinical tests, co-design of new physical evaluation metrics adapted to the motion tracking capabilities

VR+4CAD

VR+4CAD

VR+4CAD

Closing the VR-loop around the human in CAD

Project Info

Start date:
June 2020

End date:
November 2021

Funding:
Innosuisse

Coordinator:
Artanim

Website:
https://vrplus4cad.artanim.ch/

Summary

VR+4CAD aims to tackle issues limiting the use of VR in manufacture and design as highlighted by the industries: the lack of full circle interoperability between VR and CAD, the friction experienced when entering a VR world and the limited feedback provided about the experience for future analysis.

In this project, we target CAD-authored design to be automatically converted and adapted for (virtual) human interaction within a virtual environment. Interaction is made more immediate by means of an experimental, markerless motion capture system that relieves the user from wearing specific devices. The data acquired by motion capture during each experience is analyzed via activity recognition techniques and transformed into implicit feedback. Both explicit and implicit feedback are merged and sent back to the CAD operator for the next design iteration.

Partners

Artanim
Markerless motion capture, VR activity annotation

Scuola universitaria professionale della Svizzera (SUPSI)
CAD/VR interoperability, human activity recognition

Scapulo-Thoracic Alignment in B2 Glenoids

Scapulo-Thoracic Alignment in B2 Glenoids

Scapulo-Thoracic Alignment in B2 Glenoids

Dynamic analysis

Project Info

Start date:
April 2019

End date:
December 2019

Funding:
La Tour Hospital

Coordinator:
Artanim

Summary

Altered scapulothoracic alignment may be a contributing pathoanatomic factor to the development of the B2 pattern of osteoarthritis. The purpose of this study was to use a patient-specific 3D measurement technique coupling medical imaging and optical motion capture to evaluate and compare scapulothoracic alignment in patients with B2 glenoids. The results of this study may improve our understanding of glenohumeral pathoanatomy and posterior glenoid erosion patterns, and assist with osteoarthritis prevention.

In this project, Artanim was responsible for dynamically simulating shoulders from kinematic data.

Partners

Artanim
Modeling and simulation of the shoulder

La Tour Hospital – Division of Orthopedic and Trauma Surgery
Clinical tests

Imaging center Rive Droite SA
Radiological acquisitions 

Related Publications

Lädermann A, Athwal GS, Bothorel H, Collin P, Mazzolari A, Raiss P, Charbonnier C. Scapulothoracic Alignment Alterations in Patients with Walch Type B Osteoarthritis: An In Vivo Dynamic Analysis and Prospective Comparative Study, J Clin Med, 10(1):66, 2021.
PDF

 

 

Reverse Shoulder Arthroplasty

Reverse Shoulder Arthroplasty

Reverse Shoulder Arthroplasty

Dynamic simulation of RSA

Project Info

Start date:
January 2017

End date:
December 2017

Funding:
Hirslanden Clinique La Colline

Coordinator:
Artanim

Summary

The goal of this project was to simulate reverse shoulder prostheses (RSA) to evaluate the variability of several biomechanical factors and the impact on the range of motion. In particular, we were interested in evaluating the effect of glenoid lateralization, humeral inclination and critical shoulder angle (CSA). These computer-assisted simulations provided operating parameters which aimed to minimize the onset of articular conflicts and luxations.

In this project, Artanim was responsible for dynamically simulating reverse shoulder prostheses from kinematic data.

Partners

Artanim
Simulation of reverse shoulder prostheses

Hirslanden Clinique La Colline – Division of Orthopedic and Trauma Surgery
Clinical tests

Related Publications

A. Läderman, E. Tay, P. Collin, S. Piotton, J.C.H. Chiu, A. Michelet, C. Charbonnier. Effect of critical shoulder angle, glenoid lateralization and humeral inclination on range of motion in reverse shoulder arthroplasty, Bone Joint Res, 8:378-386, 2019.
PDF

C. Charbonnier, E. Tay, P. Collin, S. Piotton, J.C.H. Chiu, A. Michelet, A. Läderman. Effect of critical shoulder angle, glenoid lateralization and humeral inclination on ROM in reverse shoulder arthroplasty, Swiss Med Wkly, 149(Suppl. 236):2S, 2019.
PDF

 

 

3D Proto

3D Proto

3D Proto

Sportswear garment prototyping

Project Info

Start date:
December 2015

End date:
December 2016

Funding:
Commission for Technology and Innovation (CTI)

Coordinator:
Geneva University of Art and Design (HEAD)

Summary

A sample model on a higher technological level, such as a precise virtual 3D prototype, contains innovative numerical fitting information (e.g., data about the areas of compression of a garment) that could improve the design and quality of the final sports garment and better satisfy the customer.

The aim of this research project was thus to reform existing garment prototyping processes for the active sportswear sector. The main focus was on the definition of accurate physical and mechanical high-tech sports fabric properties and on the use of virtual sports body animations to perform accurate simulation of sports garments.

In this project, Artanim was in charge of providing realistic body animations of different sports (alpine skiing, Nordic skiing, running and hiking). Moreover, Artanim worked on the development of software tools to improve the fabric measurements protocol by analyzing body motion and deformation.

Partners

Geneva University of Art and Design (HEAD)
Fabric measurements and garments 3D simulation

Artanim
Motion capture, body modeling and animation, development of body motion and garment deformation analysis software

Odlo International SA
Garments 3D design and industrial supervision