Leitermann, D. - Search Results - Digital Repository

guest :: login Digital Repository
		Search		Submit		Help		About

Home > Search Results: Leitermann, D.

Search:

Search Tips :: Advanced Search

Search collections:

Sort by:	Display results:	Output format:

	Realistic simulation of the pulse wave in the vessel in vitro Leitermann, D. ; Chlup, Hynek ; Pražák, Josef ; Konvičková, S. The paper points out the 3rd generation of the experimental set-up simulating the Cvs. New heart generator is used, systemic resistance adapter is described and the way of modeling of more realistic external envinroment of aorta is discused. Detailed record
	Model approximation of cardiovascular system resistence cesky Musil, Jan ; Chlup, Hynek ; Leitermann, D. ; Pražák, Josef The systemic resistance approximation was set up heuristically for the resistance boy consisting of channels globally for age groups from 20 to 100years of age in the relation to the resting and load heart frequencies.The latter system will be correlated with the physical mdeol measuring and compared with the clinical findings in the mentioned age groups. Detailed record
	Testing of the failing heart Musil, Jan ; Leitermann, D. The influence of the supporting rotary pump set up pralelly to the left ventricle failing heart was followed up in the mock-line set up comprising two hearts -right and left ventricle- in series. The results concerning the pressure and resistance values differed from the results gained under the conditions with the simplified circuit having only one pulsatind failing -left- ventricle under supporting conditions. Detailed record
	Modulus of elasticity of vessel determined by pulse wave velocity measurement- criterion for non-invasive assessment of pathology Leitermann, D. ; Pražák, Josef ; Poušek, L. ; Musil, Jan ; Konvičková, S. The knowledge of material properties of vessel are the useful contribution for the description of development and progress of artery diseases. The expression of looked for conclusions is always conditioned by the obtaining of diagnostic data, which are the only information for the assessment of teh artery pathology. The motivation of this study has been to develop non-invasive method for the diagnostics of teh pathological vessels. Detailed record
	Pulsatory flow under rotary pump used to failing heart support Musil, Jan ; Převorovská, Světlana ; Leitermann, D. ; Pražák, Josef ; Maršík, František The hydrodynamic resistance values increase in the mock-line circuit verified in some cases the concommitant phenomenon due to the continuous supporting device, i. e. complete destruction of the pulsatory wave form into the chaotic turbulent flow thro the supported system. Detailed record
	Realistic model of the resistance of systemic blodd circuit Leitermann, D. ; Pražák, Josef ; Musil, Jan The next model of systemic resistance was suggested in accordance with the two preconditions. The first one was the ratio of aorta´s and capillaries´ cross-sectional area, i.e. the capillary´s one being larger than the aorta´s one, which fact would be ough for our study. Detailed record
	Circuit resistance modeling in failing heart rotary pump support Musil, Jan ; Pražák, Josef ; Leitermann, D. The stepwise resistance increase caused by the throttle valve usage in the mock-line circuit comprising the pulsating ventricle in failing heart modus and supported by rotary pump set up in parallel was studied. It appears thus important to regulate support system producing a continuous type of flow to such a regime not allowing the pulsating flow of the failing heart to disappear and preventing the mean systemic pressure value before substantial increase. Detailed record
	Systemic compliance effect un failing heart support (mechanical model study) Musil, Jan ; Pražák, Josef ; Leitermann, David The systemic compliance changes during singel rotary pump support on a symplified circuit were studied. Thus rotation speed of the supporting rotary pump, frequency rate of the failing ventricle under the changing conditions of compliance of the systemic branch (aortic root) were invesigated. The systemic compliance effect enhances the common flow of the rotary pump and the pulsating supported ventricle. Detailed record
	Model of insufficient heart supported by rotary pump (Mechanical study) Pražák, Josef ; Musil, Jan ; Leitermann, D. The insufficient heart may be supported by rotary pump connected to the left heart in parallel. Behaviour of a heart can be characterized by Frank-Starling's curve, i.e. the cardiac output is function of only the heart rate. Values of cardiac output of insufficient heart are lower than the ones of healthy heart. The task of rotary pump is to transform the cardiac output to higher values. This transformation has to respect minimum value of ejection fraction. Detailed record

Interested in being notified about new results for this query?
Subscribe to the RSS feed.

Digital Repository :: :: :: ::
Powered by v1.1.2
Maintained by

This site is also available in the following languages:
Česky English