Publications by authors named "B Misgeld"
Object-oriented modeling of thoracic fluid balance to study cardiogenic pulmonary congestion in humans.
Comput Methods Programs Biomed
October 2019
Background And Objective: We hypothesized that a biophysical computational model implemented in an object-oriented modeling language (OOML) would provide physiological information and simulative data to study the development and treatment of cardiogenic pulmonary congestion.
Methods: This work is based on the object-oriented cardiopulmonary interaction introduced in [1]. This paper describes the novel model components required to study cardiogenic pulmonary congestion: i) interstitial fluid exchange related to the Starling equation, ii) the lymphatic pump, and iii) the interconnection of these elements with the original cardiopulmonary model.
The robot-assisted therapy has been demonstrated to be effective in the improvements of limb function and even activities of daily living for patients after stroke. This paper presents an interactive upper-limb rehabilitation robot with a parallel mechanism and an isometric screen embedded in the platform to display trajectories. In the dynamic modeling for impedance control, the effects of friction and inertia are reduced by introducing the principle of virtual work and derivative of Jacobian matrix.
View Article and Find Full Text PDFAn object-oriented computational model to study cardiopulmonary hemodynamic interactions in humans.
Comput Methods Programs Biomed
June 2018
Background And Objective: This work introduces an object-oriented computational model to study cardiopulmonary interactions in humans.
Methods: Modeling was performed in object-oriented programing language Matlab Simscape, where model components are connected with each other through physical connections. Constitutive and phenomenological equations of model elements are implemented based on their non-linear pressure-volume or pressure-flow relationship.
Article Synopsis
- - The text discusses a new noninvasive method for assessing lung function using a combination of two techniques: Electrical Impedance Tomography (EIT) and the Forced Oscillation Technique (FOT), which together form a system called oscillatory electrical impedance tomography (oEIT).
- - The oEIT system includes various devices and sensors to collect data from healthy volunteers at different frequencies (3 to 20 Hz), showing that this method can provide detailed regional information about lung ventilation.
- - Findings indicate that the oEIT signals reveal distinct components related to forced oscillation, spontaneous breathing, and heart activity, with potential for improving regional lung diagnostics by distinguishing local responses to high frequency changes in different lung areas.
We address the estimation of biomechanical parameters with wearable measurement technologies. In particular, we focus on the estimation of sagittal plane ankle joint stiffness in dorsiflexion/plantar flexion. For this estimation, a novel nonlinear biomechanical model of the lower leg was formulated that is driven by electromyographic signals.
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