Demonstrační model srdce

Abstract

The bachelor thesis serves for promotional and educational purposes in terms of anatomy and function of the heart. Its main purpose is to facilitate understanding of action potential propagation and effect on atrial and ventricular contraction, the effect of pacemaker on the heart and pacemaker involvement and pacemaker work. The work is designed so that the user can see the real movement of the heart and the propagation of the action potential of the heart on the ice tape as well as the communication system with the technician and the pacemaker. Each of these devices is implemented in the whole model and the user will be able to try it out by using predefined programs on the control microchip. Furthermore, the plethysmograph can be used to show the overall function of the heart on the model in real time by calculating the frequency from the plethysmograph frequency. The methods of this work include working with matlab application in which a synthetic ECG signal was simulated in the final model as well as creating a synthetic monophasic discharge. Furthermore, the whole software was developed in the C++ programming language. The design of the model is created in 3D software and then printed using a 3D printer. The pacemaker model is a real pacemaker that has been stripped of excess control electronics. The entire model also includes the defibrillation progression so that the user can see its effect on the entire heart along with a simulation of its progression over time. The heart model is a lightly modified model of the heart where the arteries and veins have been removed. The model was extracted from an MRI scan and software modified to meet the requirements for the thesis. Using a 3D printer, printed to the final design. The overall contribution of the thesis is based on simplifying and making the physiological function closer to the general schema_dspacedb. The simulator was built to be used and improved for other students who can use it in their theses that will involve working with ecg, heart and overall heart function.