| Title | Presenter |
|---|---|
| Validation of a detailed lumbar spine model for the analysis of office chair designs | Kushagra UPADHYAY, SIMUSERV GmbH |
| Detailed and Functional Simulation Models of the Human Body for the Development of Medical Devices | Tilmann WITTIG, Dassault Systèmes |
| Soft Tissue Simulation with Abaqus on the Example of the Periodontal Ligament | Albert H. KAISER |
Validation of a detailed lumbar spine model for the analysis of office chair designs
The topic of low back pain is very relevant for the design of office chairs. At the moment, the typical development procedure is carried out via test person sitting on hardware prototypes. The subjective results are difficult to use for a straight forward decision process. Further the generation of new hardware prototypes is very costly and takes a long time.
Here, numerical simulations using human body models is a step ahead for the digital development of furniture products. The human body model Jo is designed for this task. Ensuring a high level of prognosis of low back pain the lumbar spine of the model is step by step validated via test data of a L4/L5 segment, the whole lumbar spine and finally by in vivo data of pressure gauges implemented in the spine.
The presentation will cover the model setup, the validation procedure and show the application for the design evaluation of a new office chair design.
Presenter: Kushagra UPADHYAY, SIMUSERV GmbH
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Detailed and Functional Simulation Models of the Human Body for the Development of Medical Devices
As in most industrial segments, the development cycles of medical devices are getting shorter and shorter, while the demands on functionality, safety and service life keep on increasing. Simulation offers significant speed-ups during the design process, as numerous variants can be tested virtually for functionality without having to build a physical prototype. Simulation provides valuable insights, especially with regard to safety aspects, since the interior of the human body is typically difficult or impossible to be accessed with conventional measurement technology.
However, the reliability of the simulation results is directly related to the quality of the underlying models, which turns out to be a major challenge, especially in view of the complexity of the human body. This presentation describes an innovative way to create a set of human models that describes a large number of tissues with great accuracy and thus depicts a wide spectrum of the population as accurately as possible. The value of the high-precision models for various simulation disciplines is shown on the basis of various practical applications from the fields of MRI, orthopedic implants, inhalation devices and artificial heart valves!
Presenter: Tilmann WITTIG, Dassault Systèmes
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Soft Tissue Simulation with Abaqus on the Example of the Periodontal Ligament
To set the scene, a personal perspective on, The job you can run over night is presented. Poro- and visco-hyper elasticity and its application in soft tissue modeling is reviewed on examples in literature. Then, a section of the periodontium and periodontal ligament, and the relaxation test of Papadopoulou et al. (2013) with specimens of porcine mandibular premolars are explained. Simulation of the periodontium using a poro-visco-hyperelastic model of the periodontal ligament, methods used for parameter identification and correlation to the measured test data is presented.
Presenter: Albert H. KAISER
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Life Sciences & Healthcare
