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Study of diaphragm pump with linear motor
Čejka, Pavel ; Uttendorfský, Petr (referee) ; Pochylý, František (advisor)
The diploma thesis is aimed at the constructional design of diaphragm pumps with a linear motor. This pump is supposed to be used in medicine for pumping the blood or as an artificial heart. The basic facts, which are focused on the function of the heart and artificial heart, are mentioned in the first parts of the thesis. The next parts describe the diaphragm pumps and the constructional ways of their diaphragm fixation. Furthermore, the basic calculations, describing the function of the pump, are derived there. The basic parameters of the pump are also calculated. The thesis also contains the description of the body pump construction, whose working room is optimized by CFD calculation before the pump is manufactured. The final part of the thesis is concentrated on the measurement evaluation of produced pump model.
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Determination of Blood Pressure
Plch, Miroslav ; Smital, Lukáš (referee) ; Čmiel, Vratislav (advisor)
The thesis includes a general introduction to monitoring and measurement of blood pressure of horses, the design of algorithms for pressure curve detection and the calculation of respiratory variabilities in mechanical ventilation under anaesthesia. The first two chapters focus on anatomy, on characteristics of blood flow and on vascular system. Then it deals with the measurement of blood pressure, monitoring of a horse under anaesthesia and it describes particular thermodynamic parameters. In the following part of the thesis, the methods of pressure curve detection are described. The last part contains the description of an algorithm designed for detection of pressure curve of horses in the environment of the program LabVIEW. The program calculates, displays and saves variabilities of systolic pressure, pulse volume, pressure amplitude, pulse frequency, peripheral resistance and vascular expansion from the detected values.
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Doppler blood flow detector
Klügl, Jan ; Čech, Petr (referee) ; Rozman, Jiří (advisor)
This bachelor's thesis is engage in suggestion of nondirection doppler blood flow detector with unmodulated carrying wave. At first the thesis describes indicator's principle of working and mention the systemic proposal for working frequency and intensity of ultrasound. Later in detail describes individual blocks, which are the detector consist of. At every block of system is mentioned the diagram of connection and values of components, which are ascertained from calculation, simulation and recommendation of producer.
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Breath Alcohol Tester
Pagáč, Patrik ; Kolář, Radim (referee) ; Chmelař, Milan (advisor)
The theme of bachlor’s project is design of simply breath alkohol tester. A breath alcohol test determines how much alcohol is in your blood by measuring the amount of alcohol in the air you breathe out (exhale).My task is interpret the possibility of measuring the alcohol content in the body. Describe the different methods and compare their accuracy and useability for practical measurements and also used in law enforcement.
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Artificial heart valves
Ruzsík, Erik ; Kůrečka, Jan (referee) ; Šedivý, Dominik (advisor)
The topic of this bachelor thesis is artificial heart valves and it contains some specific features of the cardiovascular system. Furthermore, it deals with the rheology of blood, summarises the types of artificial heart valves used and values their advantages and disadvantages. Its main goal is to determine the pressure drop on a real mechanical heart valve. The practical part consists of an experiment in the OFIVK laboratory. The achieved results are assessed in the conclusion of the thesis.
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Dependence of derived fibrinogen on values of DH from APTT and QUICK(PT) methods
Klus, Michal ; Zapletal,, Ondřej (referee) ; Škutková, Helena (advisor)
Hemocoagulation, blood coagulation, is an important indicator of hemostatic balance in the human body. There are many ways how to investigate blood clotting. In practice, next to the tests investigating time of coagulation cascade from view of internal way (APTT – activated partial tromboplastin time) and external way (PT – prothrombin time) is often used determining of fibrinogen concentration by Clauss method. Derived fibrinogen method determined fibrinogen concentration, too, by subtracting form the clotting curve in PT test. The reaction for Clauss method is not necessary here. Derived fibrinogen is not used much in practice. This is the reason, why the thesis related to this project will try to find relationship between concentration of fibrinogen and standard tests APTT and PT. Clinical data will be used for this.
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Doppler blood flow indicator
Mojžíš, Karel ; Čížek, Martin (referee) ; Rozman, Jiří (advisor)
This bachelor´s thesis deals with basis of ultra-acoustics. The project presents basic information about Doppler effect. It describes the methods of processing and analyzing of velocity and direction of blood at doppler’s systems with modulated and unmodulated carrier wave. The project presents the system design of non-directional doppler indicator with unmodulated carrier wave for 8 MHz frequency, generating intensity of ultrasound 100 mW/cm2 and diameter D-shaped transmitting transducer 8 mm. This bachelor's thesis is concerned with circuit solution of a battery powered blood flow indicator with digital display. All the function blocks of the system are experimentally measured and their function is verified. The thesis contains complete materials for the construction of the doppler blood flow indicator.
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Determination of Blood Pressure Parameters for Ventilation Control during Anaestesia in Horses
Horský, Martin ; Provazník, Ivo (referee) ; Čmiel, Vratislav (advisor)
The present work deals with the issue of hemodynamic monitoring of blood pressure in horses during mechanical ventilation in anesthetized horses. Result of this work is an extension to the application Datex-Ohmeda S/5 Collect, which from the pressure curve provides values needed for optimal ventilation. Initial chapter provides a general physiologic introduction. It describes the definition of blood pressure, cardiac cycle and description of the pressure curve. It also deals with the hemodynamic parameters such as pulse pressure, stroke volume and their variabilities. In the second chapter is described methodology of measuring blood pressure in horses. Both, noninvasive and invasive methods are included. The third chapter analyzes fluctuations in blood pressure during ventilation. The last fourth chapter describes the implemented extension module which is designed to monitor hemodynamic parameters of the pressure curve.
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Membrane Oxygenator
Jindra, Jakub ; Harabiš, Vratislav (referee) ; Hejč, Jakub (advisor)
This bachelor thesis deals with the creation of an oxygenator for isolate rabbit’s hearts. In this work is created a mathematical model of the oxygenator and calculate optimal parameters for this application. Design of the construction solution leads to creating a 3D model and print of the oxygenator proposal and creation of the functional prototype. The conclusion of this work is the evaluation of the functionality of the equipment and the discussion of the achieved results.
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