Course detail

Biomechanics III - Cardiovascular

FSI-RBMAcad. year: 2021/2022

The course starts with basic information on structure of cardiovascular system, its anatomy, physiology, histology and atherosclerosis as its most frequent pathology. An overview of basic reological properties of blood is presented, as well as constitutive models for description of its non-Newtonian behaviour. The course presents the structure of relevant soft tissues, ways of its analysis at the level of cells and fibres, impact of the structure on mechanical behaviour of the tissue and possibilities of its constitutive description. All this is applied in computational models of animal cells, arteries and heart chamber, created in ANSYS software.
Further, the course deals with technical fundamentals of therapeutic treatments and man-made replacements used at cardio-vascular system (vascular grafts, arterial stents, artificial heart valves, artificial heart pumps). The course deals with their technical principles, materials, production technology and basic requirements of biocompatibility.

Language of instruction

Czech

Number of ECTS credits

6

Mode of study

Not applicable.

Guarantor

prof. Ing. Jiří Burša, Ph.D.

Department

Institute of Solid Mechanics, Mechatronics and Biomechanics (ÚMTMB)

Learning outcomes of the course unit

Students will have a clear idea of basic biomechanical problems of cardiovascular system and of the implants used in it. They will be able to model these problems at the actual level of scientific knowledge and of technological equipment.

Prerequisites

Knowledge of basic terms of theory of elasticity and selected theories in the range of the course 5PP-A (stress, strain, general Hooke's law, membrane theory of shells, thick-wall cylindrical vessel). Description of mechanical properties of materials under large strains using hyperelastic constitutive models including anisotropic ones. Basic properties of Newtonian liquids (viscosity), theory of linear viscoelasticity. Fundamentals of FEM and basic handling of ANSYS system.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

The course is taught through lectures explaining the basic principles and theory of the discipline. Fundamentals of anatomy, physiology and pathology of cardiovascular system are presented by an external medical lecturer (Mgr. MUDr. Michaela Vojnová Řebíčková). Seminars are focused on practical exercising of the topics presented in lectures.

Assesment methods and criteria linked to learning outcomes

Active participation in seminars, final project and its defence, test of basic theoretical knowledge.

Course curriculum

Not applicable.

Work placements

Not applicable.

Aims

The aim of the course is to provide basic general knowledge about properties of tissues in cardiovascular system and analyze in detail impact of their structure on mechanical behaviour. Students should get acquainted with computational models of heart and blood vessels at the level corresponding to the actual state of science and capabilites of the existing software. They also get familiar with treatments and implants applied in the cardio-vascular system and principles of their function and design.

Specification of controlled education, way of implementation and compensation for absences

Attendance at practical training is obligatory. An apologized absence can be compensed by individual projects controlled by the tutor.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Ethier, Simmons: Introductory biomechanics. Cambridge University Press, 2007. (EN)
Fung: Biomechanics. Mechanical properties of living tissues.Springer, 1993. (EN)
Holzapfel G.A., Ogden R.W.: Biomechanics of soft tissue in cardiovascular system. Springer 2003. (EN)
Humphrey: Cardiovascular solid mechanics. Cells, Tissues and Organs.Springer, 2002. (EN)

Recommended reading

HOLIBKOVÁ, Alžběta a Stanislav LAICHMAN. Přehled anatomie člověka. 5. vyd. Olomouc: Univerzita Palackého v Olomouci, 2010. ISBN 978-80-244-2615-0. (CS)
Křen J., Rosenberg J., Janíček P.: Biomechanika. Vydavatelství ZČU, 1997. (CS)
Trojan S. , Schrieber M.: Atlas biologie člověka. Scientia, 2013 (CS)

eLearning

eLearning: currently opened course

Classification of course in study plans

  • Programme N-IMB-P Master's

    specialization BIO , 2. year of study, winter semester, compulsory

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

prof. Ing. Jiří Burša, Ph.D.

Syllabus

1.Introduction, contents of the course, mechanical properties of soft biological tissues and their experimental evaluation.
2. Fundamental medical information on cardiovascular system.
3. Fundamentals of physiological processes in heart (ECG, Starling's law) and blood vessels.
4. Composition and rheological properties of blood, models of blood behaviour, velocity profiles of non-Newtonean liquids, Fahraeus-Lindqvist effect.
5. Mechanical properties of cells and their computational modelling.
6. Structure and composition of vascular wall, mechanical properties of the wall and its components, poroelastic models, residual stresses in arteries. Structure of myocardium.
7. Mechanical influence on atherosclerotic processes, principials of medical treatment of sclerotic arteries.
8. Arterial stents, principles of thier function, design and production.
9. Vascular grafts (arterial replacements), types, properties, application, production.
10. Natural and artificial heart valves, principles of their function, overview of available products.
11.Ventricular assist devices and total artificial hearts.
12. Anisotropic constitutive models of soft tissues, assessment of orientation of collagen fibres and principal material directions.
13.Actual possibilities of computational modelling of cardiovascular system.

Computer-assisted exercise

13 hours, compulsory

Teacher / Lecturer

prof. Ing. Jiří Burša, Ph.D.

Syllabus

1.-2. Analytic calculations of stresses in arterial wall, their limitations.
3.-4. Evaluation of reological parameters of the blood circuit, FSI analysis.
5.-6. FE tensegrity model of animal cell.
7.-8. FE model of left ventricle.
9.-10. FE model of aorta, residual stress.
11.-12. Evaluation of residual stress in arteral wall using volume growth (fictitious temperature) method.
13. Formulation of semester projects.

eLearning

eLearning: currently opened course