Alexander Kobelev

Alexander Kobelev
Bauman Moscow State Technical University · Department of Biomedical Engineering Systems

Diplom

About

27
Publications
3,901
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92
Citations
Citations since 2016
24 Research Items
87 Citations
20162017201820192020202120220510152025
20162017201820192020202120220510152025
20162017201820192020202120220510152025
20162017201820192020202120220510152025

Publications

Publications (27)
Article
Full-text available
At present, there are no hardware or biochemical systems that allow to assess the severity of post-COVID syndrome in vivo. The hardware of the proposed biotechnical system is based on routine transthoracic electrical impedance rheography, which makes it possible to register the frequency characteristics of the patient's bioimpedance response to con...
Preprint
Full-text available
At present, there are no hardware or biochemical systems allow to assess the severity of post-COVID syndrome in vivo. The hardware of the proposed biotechnical system is based on routine transthoracic electrical impedance rheography, which makes it possible to register the frequency characteristics of the patient's bioimpedance response to controll...
Preprint
Full-text available
At present, there are no hardware or biochemical systems allow to assess the severity of post-COVID syndrome in vivo. The hardware of the proposed biotechnical system is based on routine transthoracic electrical impedance rheography, which makes it possible to register the frequency characteristics of the patient's bioimpedance response to controll...
Article
Full-text available
The detection of muscle contraction and the estimation of muscle force are essential tasks in robot-assisted rehabilitation systems. The most commonly used method to investigate muscle contraction is surface electromyography (EMG), which, however, shows considerable disadvantages in predicting the muscle force, since unpredictable factors may influ...
Article
Full-text available
Creating highly functional prosthetic, orthotic, and rehabilitation devices is a socially relevant scientific and engineering task. Currently, certain constraints hamper the development of such devices. The primary constraint is the lack of an intuitive and reliable control interface working between the organism and the actuator. The critical point...
Article
Full-text available
The electrical impedance myography method is widely used in solving bionic control problems and consists of assessing the change in the electrical impedance magnitude during muscle contraction in real time. However, the choice of electrode systems sizes is not always properly considered when using the electrical impedance myography method in the ex...
Conference Paper
Full-text available
The goal of this work is to design a Finite Element Method model enabling the simulation of the impact of muscle activity onto current density distribution, which is established by far-current electrode placement. Here assumed as an alteration in el. conductivity within specific muscle groups, coupled to increasing perfusion during repetitive tasks...
Patent
Full-text available
The present invention relates to biophysics and medical technology, and may be used to control special purpose technical devices, for example, bioelectric prostheses, electronic implants or exoskeletons. The technical result in this case consists in the provision of an opportunity to obtain a control signal based on the recording of muscle contract...
Article
Full-text available
Проведённые исследования показали, что совместное использование электроимпе- дансного и электромиографического сигналов, зарегистрированных с одной системы электродов, позволяет получить не только информацию о параметрах электрической ак- тивности мышцы, но и оценить степень её сокращения. В совокупности, представляется возможным организовывать ант...
Conference Paper
Full-text available
The principles of impedance calibration are presented. The method of rheography is briefly discussed. The paper presents hardware and software for the impedance calibration before the registration of rheographic signals. Calculations made in analyzing signals are presented, which show that the errors contribution to the total volume of registered s...
Article
Full-text available
The specifics of using tetrapolar electrode systems for a wide class of electrical impedance measurements are discussed. The key factors affecting the error in solving the inverse electrical impedance problem using a tetrapolar electrode system are determined.
Article
Full-text available
Работа посвящена методическим аспектам применения тетраполярных электродных систем для широкого класса электроимпедансных измерений. Установлены ключевые факторы, влияющие на погрешность оценки электрического импеданса и удельного сопротивления биологических тканей с использованием тетраполярной электродной системы.
Article
Full-text available
Aim: of the present work was assessment of possibility to use modern electroimpedace methods for the study of activity of the heart. Electroimpemdace methods of measurement for many years remained in the shadow of other diagnostic methods because of low accuracy in evaluation of various parameters. At present, there are technologies of measurement...
Article
Full-text available
This article is about the analysis of the basic tendencies in the development of impedance rheocardiography method and modern software and hardware. We consider the technical aspects of increased reliability and accuracy of the heart pump function estimation. The authors present the basic results of the impedance noninvasive monitoring systems deve...
Article
Full-text available
This paper surveys special features of impedance measurements focusing on estimation heart’s localization and chambers, and the main vessels in the thoracic cavity. Here we came up with horizontally-layered model of precardiac tissues and described 32-channels system developed for impedance measurements. Also we presented the result of heart impeda...
Chapter
Full-text available
Long-term monitoring of physiological parameters is crucially important for patients with chronic diseases, having high risk of severe consequences like myocardial infarction or stroke. Monitoring is equally important for healthy humans for early detection of the changes in physiological conditions and following diagnosis of the developing diseases...

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Projects (2)