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- Einspielen <Werkstoff> (7)
- FEM (4)
- Finite-Elemente-Methode (4)
- shakedown analysis (3)
- Einspielanalyse (2)
- Shakedown analysis (2)
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- damage (2)
- limit analysis (2)
- shakedown (2)
- Alternating plasticity (1)
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- Aufschlagversuch (1)
- Autolysis (1)
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- Axially cracked pipe (1)
- Basis Reduktion (1)
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- Cardiac tissue (1)
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- Einspielen (1)
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- Knochenchirugie (1)
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- Liver (1)
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- Polymer-matrix composites (1)
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- Uniaxial compression test (1)
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- Wolff's Law (1)
- Wolffsches Gesetz (1)
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- alternierend Verformbarkeit (1)
- anaesthetic complications (1)
- anisotropy (1)
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- ankle sprain (1)
- arthrosis therapy (1)
- biaxial tensile experiment (1)
- bicharacteristics (1)
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- bone structure (1)
- burst pressure (1)
- burst tests (1)
- cancellous bone (1)
- chance constrained programming (1)
- constitutive modeling (1)
- dental trauma (1)
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- direct method (1)
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- double-lumen tube intubation (1)
- elastic solids (1)
- fatigue analyses (1)
- fibulare Bandruptur (1)
- flaw (1)
- fortschreitende plastische Deformation (1)
- gonarthrosis (1)
- hiPS cardiomyocytes (1)
- hyperelastic (1)
- konvexe Optimierung (1)
- limit load (1)
- load limit (1)
- non-simplex S-FEM elements (1)
- pipes (1)
- ratchetting (1)
- reliability analysis (1)
- reliability of structures (1)
- rupture of the fibular ligament (1)
- shakedown analyses (1)
- smooth muscle contraction (1)
- stochastic programming (1)
- strain energy function (1)
- tension–torsion loading (1)
- thermal ratcheting (1)
- vessels (1)
- videolaryngoscopy (1)
- virgin passive (1)
- viscoelasticity (1)
- yield stress (1)
Institute
The porosity of surgical meshes makes them flexible for large elastic deformation and establishes the healing conditions of good tissue in growth. The biomechanic modeling of orthotropic and compressible materials requires new materials models and simulstaneoaus fit of deformation in the load direction as well as trannsversely to to load. This nonlinear modeling can be achieved by an optical deformation measurement. At the same time the full field deformation measurement allows the dermination of the change of porosity with deformation. Also the socalled effective porosity, which has been defined to asses the tisssue interatcion with the mesh implants, can be determined from the global deformation of the surgical meshes.
Prosthetic textile implants of different shapes, sizes and polymers are used to correct the apical prolapse after hysterectomy (removal of the uterus). The selection of the implant before or during minimally invasive surgery depends on the patient’s anatomical defect, intended function after reconstruction and most importantly the surgeon’s preference. Weakness or damage of the supporting tissues during childbirth, menopause or previous pelvic surgeries may put females in higher risk of prolapse. Numerical simulations of reconstructed pelvic floor with weakened tissues and organ supported by textile product models: DynaMesh®-PRS soft, DynaMesh®-PRP soft and DynaMesh®-CESA from FEG Textiletechnik mbH, Germany are compared.
Zusammenfassung: In der Orthopädie zählt der therapeutische Ultraschall als Mittel zur Prävention und Therapiebegleitung. Er hat mechanische, thermische und physiko-chemische Auswirkungen auf den menschlichen Körper. Um mehr Erkenntnisse über die thermischen Auswirkungen zu erlangen, wurden Versuche an einem Hydrogel-Phantom und an Probanden durchgeführt. Dabei entstand eine signifikante Erwärmung des Gewebes, welche beim Probandenversuch an der Oberfläche und beim Hydrogelversuch in der Tiefe gemessen wurde.
Summary: In orthopaedics, therapeutic ultrasound is a tool of prevention and therapy support. It has mechanical, thermal and physico-chemical effects on the human body. Tests with a hydrogel phantom and with human probands have been performed in order to obtain more knowledge about their thermal effects. Both tests measured temperature increases in cell tissue, on the surface with the human proband test and in depth with the hydrogel phantom test.
Postural and metabolic benefits of using a forearm support walker in older adults with impairments
(2019)