National Repository of Grey Literature 14 records found  1 - 10next  jump to record: Search took 0.01 seconds. 
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.
Simulation of electroporation effect in the heart for various application catheter designs
Kafka, Roman ; Hemzal, Martin (referee) ; Novotná, Veronika (advisor)
This master thesis describes modeling of electric and thermal fields in tissue during cardiac ablation based on irreversible electroporation. It is about basic principles and laws that applies to this problematics. Further, it describes the electric and thermal difference between DC and AC electroporation pulses. The follow-up work presents many simulation models of new cardiac catheters developed with research team.
Conductive model of human tissue for electroporation purposes
Zelinková, Kateřina - Šarlota ; Cipín, Radoslav (referee) ; Novotná, Veronika (advisor)
This thesis solves the issue of the distribution of the high voltage pulse at the electroporation of the arget ablation zone. For futher examination of influence electroporation was necessary to first understand theoretically electrical charakter of cells and replace with basics eletrical circumferential elements (RLC). Based on this knowledge, theoretical prerequisites for experimental measurements were derived. Theoretical assumptions were then verified by experimental measurements. In the measurement, the assumptions found were confirmed, but significant performance losses were identified. A new catheter was designed to reduce the loss. Because the production of a new catheter is not economically disadvantageous, the properties of the new catheter were first tested using the simulation cloud environment SIMSCALE, where the heating of the heart tissue after the application of the electroporation pulse was monitored. Furthermore, the electroporation process was simulated in the FEMM program, where emphasis was placed on the propagation of cardiac tissue tension.
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.
Simulation of electroporation effect in the heart for various application catheter designs
Kafka, Roman ; Hemzal, Martin (referee) ; Novotná, Veronika (advisor)
This master thesis describes modeling of electric and thermal fields in tissue during cardiac ablation based on irreversible electroporation. It is about basic principles and laws that applies to this problematics. Further, it describes the electric and thermal difference between DC and AC electroporation pulses. The follow-up work presents many simulation models of new cardiac catheters developed with research team.
Options preventing catheter-related sepsis during hospitalization
Slavkovská, Jana ; Heczková, Jana (advisor) ; Mrákava, Vlastimil (referee)
The thesis is focused on the assessment of nurse's knowledge in the prevention of catheter sepsis. The aim of the study was to expertise knowledge in the prevention of catheter sepsis among nurses working in intensive care units. Map out the latest theoretical and practical possibilities of nurses working in intensive care units in the prevention of catheter-related sepsis of hospitalized patients. The work is divided into theoretical and practical part. The theoretical part consists of three chapters. In the first chapter, we focused on a theoretical overview of nosocomial and bloodstream infections. The second chapter is focused on an overview of invasive inputs. The third chapter focuses on prevention of catheter sepsis. Practical part was divided into two chapters. In the first section of the empirical part of the diploma thesis, which is the fourth chapter, we characterized the survey sample, the evaluation of the survey data that have been collected through the questionnaire. Practical part was divided into two chapters. The fifth chapter consists of discussion and suggestions. Key words: sepsis, prevention, nursing, catheter, nurse, hospitalization.
Conductive model of human tissue for electroporation purposes
Zelinková, Kateřina - Šarlota ; Cipín, Radoslav (referee) ; Novotná, Veronika (advisor)
This thesis solves the issue of the distribution of the high voltage pulse at the electroporation of the arget ablation zone. For futher examination of influence electroporation was necessary to first understand theoretically electrical charakter of cells and replace with basics eletrical circumferential elements (RLC). Based on this knowledge, theoretical prerequisites for experimental measurements were derived. Theoretical assumptions were then verified by experimental measurements. In the measurement, the assumptions found were confirmed, but significant performance losses were identified. A new catheter was designed to reduce the loss. Because the production of a new catheter is not economically disadvantageous, the properties of the new catheter were first tested using the simulation cloud environment SIMSCALE, where the heating of the heart tissue after the application of the electroporation pulse was monitored. Furthermore, the electroporation process was simulated in the FEMM program, where emphasis was placed on the propagation of cardiac tissue tension.
Odběr spermatu pomocí katetru a jeho využití při výtěru štiky obecné (Esox lucius L.)
PLAŇANSKÝ, Tomáš
The aim of this diploma thesis is to compare quality of northern pike sperm collected by different methods. First method is collection of stripped sperm by abdominal massage of the belly. Second method is collection of stripped sperm with special catheter to eliminate sperm contamination by urine. The last method is collection of testicular sperm. Differently collected sperm was evaluated and compared its quality. The main observed parameters were sperm volume, spermatozoa concentration, spermatozoa motility and velocity and osmolality of seminal fluid. Sperm samples were used for eggs fertilization. In fertilized eggs, the fertility of eggs and larvae hatching rate were observed.
Options preventing catheter-related sepsis during hospitalization
Slavkovská, Jana ; Heczková, Jana (advisor) ; Mrákava, Vlastimil (referee)
The thesis is focused on the assessment of nurse's knowledge in the prevention of catheter sepsis. The aim of the study was to expertise knowledge in the prevention of catheter sepsis among nurses working in intensive care units. Map out the latest theoretical and practical possibilities of nurses working in intensive care units in the prevention of catheter-related sepsis of hospitalized patients. The work is divided into theoretical and practical part. The theoretical part consists of three chapters. In the first chapter, we focused on a theoretical overview of nosocomial and bloodstream infections. The second chapter is focused on an overview of invasive inputs. The third chapter focuses on prevention of catheter sepsis. Practical part was divided into two chapters. In the first section of the empirical part of the diploma thesis, which is the fourth chapter, we characterized the survey sample, the evaluation of the survey data that have been collected through the questionnaire. Practical part was divided into two chapters. The fifth chapter consists of discussion and suggestions. Key words: sepsis, prevention, nursing, catheter, nurse, hospitalization.
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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