ESI Software Solutions Benefit the Biomedical Sector
(Thomson Reuters ONE) -
ESI Software Solutions
Benefit the Biomedical Sector
A recent study helps to precisely understand
the challenges related to a hip prosthesis
Paris, France - April 2, 2015 - ESI Group, pioneer and world-leading solution
provider in Virtual Prototyping for manufacturing industries, and partner of
numerous R&D projects in the biomedical sector for many years, announces the
results of technical studies recently carried out in France. These studies,
performed in collaboration with a hip prosthesis manufacturer, have led to a
better understanding of the issues related to the manufacturing, placement and
in-vivo mechanical behavior of such prostheses. These studies clearly illustrate
the potential for numerical simulation in the medical sector.
The fitting of total hip prostheses is one of the top five operations in
orthopedic surgery today; and such surgeries are steadily rising according to
statistics from the French Hospital Information Technology Agency (ATIH)[1].
With patients - especially athletes - needing surgery at an increasingly younger
age, and with growing life expectancies, prostheses must last longer. These
requirements for increased longevity and comfort raise several new challenges
for doctors as well as for prosthesis manufacturers.
For manufacturers, new materials, including ceramics and metal alloys, must be
evaluated and the design of prostheses must take into account various issues
related to breakage, wear and noise. Doctors, on the other hand, try to mitigate
the possible consequences of a micro separation between the prosthesis' femoral
head and the cavity in which it is inserted (the 'cup'). This separation can
cause micro impacts during daily use and result in premature wear.
For nearly a year the teams at ESI in France have conducted a study to help
doctors and manufacturers better understand the phenomena that lead to
prosthetic malfunctions. The first study was conducted to accurately simulate
the kinematics and the various stresses applied on a hip prosthesis in order to
understand the physics taking place in cases of extreme load, experienced in
accidental cases. The teams used ESI's integrated CAE platform, Visual-
Environment to build models from geometry and material description provided by
the manufacturer. They then switched to ESI's Virtual Performance Solution to
study an impact equivalent to 9K Newton in 9ms, which is representative of a
severe shock, such as a patient heavily falling down the stairs. Using ESI
software solutions, the study has allowed doctors and manufacturers to very
accurately describe the kinematics and contact areas following a decoaptation
(separation of the femoral head and cup) of the prosthesis.
A second study was conducted on behalf of a prosthesis manufacturer, Science et
Médecine (SEM), based in Créteil, near Paris, France. The aim was to compare
three different designs of modular prostheses fabricated from vanadium alloys,
to determine which one was the most resistant in accidental cases. The precise
simulation of the fitting process of the prostheses has helped SEM to accurately
determine their future positioning, as well as the structural damage expected
when regulatory tests are performed.
"Numerical simulation is commonly used by SEM to achieve reliable design and
ensure the safe use of our medical devices. We are very sensitive to software
improvements, especially those incorporating dynamic simulation. The study
conducted in partnership with ESI has improved our understanding of the
mechanical behavior of our prostheses, for each tested design. The recent
developments of simulation tools help us in increasing the reliability of
medical devices including those requiring assemblies", explains Mr. Bréard,
Research and Development Director, Science et Médecine.
Image: Simulation results in Virtual Performance Solution: mechanical stresses
for a given load case.
For Fouad El-Khaldi, Industrial Strategy and Innovation Director for ESI Group,
this study in the health sector is part of the company's diversification
strategy. He explains, "ESI has already proven its value in helping companies in
the automotive, aerospace, energy and electronics domains. Now many other
industries are turning to Virtual Prototyping as they see the benefits of being
able to precertify products and anticipate product issues. Obviously, the health
sector represents a huge potential market because simulation can solve
customization issues and help manufacturers deliver the best solution for each
and every patient, in less time and at an affordable cost.
[1] Source : « Typologie et épidémiologie des prothèses totales de hanche en
France », J Caton, P Papin (2012)
For more information about Visual-Environment, please visit http://www.esi-
group.com/visual-environment
For more information about Virtual Performance Solution, please visit www.esi-
group.com/VPS
For more ESI news, visit: www.esi-group.com/press
ESI Group - Media Relations
Céline Gallerne
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About ESI Group
ESI is a world-leading provider of Virtual Product Engineering software and
services with a strong foundation in the physics of the materials of which
products are built.
Founded over 40 years ago, ESI has developed a unique proficiency in helping
industrial manufacturers replace physical prototypes by virtually replicating
the fabrication, assembly and testing of products in different environments.
Virtual Prototyping enables ESI's clients to evaluate the performance of their
product, and the consequences of its manufacturing history, under normal or
accidental conditions. By benefiting from this information early in the process,
enterprises know whether a product can be built, and whether it will meet its
performance and certification objectives, before any physical prototype is
built. To enable customer innovation, ESI's solutions integrate the latest
technologies in high performance computing and immersive Virtual Reality,
allowing companies to bring products to life before they even
exist.
Today, ESI's customer base spans nearly every industry sector. The company
employs about 1000 high-level specialists worldwide to address the needs of
customers in more than 40 countries. For further information, visit www.esi-
group.com.
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[HUG#1908690]
Unternehmensinformation / Kurzprofil:
Datum: 02.04.2015 - 18:00 Uhr
Sprache: Deutsch
News-ID 383271
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contact information:
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