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LI S.,Life Care Medical Devices | YIN M.,Xian Jiaotong University | GAO L.,University of Science and Technology of China | QI S.,PLA Fourth Military Medical University | WANG J.,University of Science and Technology of China
Journal of Mechanics in Medicine and Biology | Year: 2015

Pressure ulcers, involving sub-dermal tissue damage and originating in deep tissue injury (DTI), have attracted much attention of physicians and researchers for three decades. Finite element (FE) model is a very efficient tool to investigate internal stresses and strains in human body that induce pressure ulcers. However, there was scarce report available to explore stresses distribution in human buttocks during manual wheelchair propulsion. A three-dimensional (3D) comprehensive FE model, incorporating ischial tuberosities (ITs), muscle, fat, and custom-contoured cushion (CCC), was developed to investigate internal stress distribution in soft tissue of the buttocks. Based on the FE model, pressure distribution under ITs in static sitting and during different wheelchair propulsions is studied. Internal stresses in fat and muscle were about three times and five times higher than that on cushion surface in terms of static sitting and wheelchair propulsion. All peak pressures under wheelchair propulsion were higher than those of static sitting, and peak pressures went on increasing with increase of wheelchair movement speed. This method based on the comprehensive FE model allowed for the optimization of wheelchair seat cushion design. © 2014 World Scientific Publishing Company


Life Care Medical Devices | Entity website

About Life Care Medical Devices (LCMD) is a company focused on the development, production and distribution of non-invasive and minimally-invasive technologies and products that reshape the treatment paradigm for medical procedures


Life Care Medical Devices | Entity website

DisclaimerAll statements and expressions are the sole opinion of the company and are subject to change without notice. The Company is not liable for any investment decisions by its readers or subscribers ...


Life Care Medical Devices | Entity website

About Life Care Medical Devices (LCMD) is a company focused on the development, production and distribution of non-invasive and minimally-invasive technologies and products that reshape the treatment paradigm for medical procedures


Life Care Medical Devices | Entity website

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