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Modelling Lymphoedematous Tissue under Pneumatic Compression
Pneumatic compression of lymphoedematous tissues is commonly applied therapeutic modality (Olszewski et al., 2011). This paper presents results of simulations of hydro-mechanical processes in lymphoedematous tissue under stress of a single chamber of sleeve for pneumatic compression. The limb is modeled as a cylinder with a layer of oedematous tissue of constant thickness. The Biot's poroelastic model (Biot, 1941) and finite element method are used. Assuming a set of geometrical parameters of limb, material parameters of tissue and two types of applied load (constant and cyclic pressure in the chamber of sleeve) the distributions of pore pressure, liquid velocity and displacement of tissue are analyzed. The results show that the process of squeezing of lymph from tissue is strongly dependent on pressure in chamber and time of its action and that longer compression times seem to be necessary to force complete outflow of fluid. The observations resulting from simulations are compared with available experimental data.
Modelling Lymphoedematous Tissue under Pneumatic Compression
Pneumatic compression of lymphoedematous tissues is commonly applied therapeutic modality (Olszewski et al., 2011). This paper presents results of simulations of hydro-mechanical processes in lymphoedematous tissue under stress of a single chamber of sleeve for pneumatic compression. The limb is modeled as a cylinder with a layer of oedematous tissue of constant thickness. The Biot's poroelastic model (Biot, 1941) and finite element method are used. Assuming a set of geometrical parameters of limb, material parameters of tissue and two types of applied load (constant and cyclic pressure in the chamber of sleeve) the distributions of pore pressure, liquid velocity and displacement of tissue are analyzed. The results show that the process of squeezing of lymph from tissue is strongly dependent on pressure in chamber and time of its action and that longer compression times seem to be necessary to force complete outflow of fluid. The observations resulting from simulations are compared with available experimental data.
Modelling Lymphoedematous Tissue under Pneumatic Compression
Kaczmarek, M. (Autor:in) / Olszewski, W. L. (Autor:in) / Nowak, J. (Autor:in) / Zaleska, M. (Autor:in)
Fifth Biot Conference on Poromechanics ; 2013 ; Vienna, Austria
Poromechanics V ; 2166-2173
18.06.2013
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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