|
| |
|
| |
|
| |
|
|
Detection of the pulse wave velocity in an elastic tube
Chlup, Hynek ; Macková, H. ; Vilímek, M. ; Žitný, R. ; Konvičková, S.
The velocity of the pulse wave in blood vessels is one of the important hemodynamical parameters to detect health condition or a degree of damage of a diseased artery. To understand the problem, the physiological values must be known. In our laboratory, the velocity of pulsewave in elastic tubes and arteries is measured in vitro by non-invasive method. The method is based on optical measurements of displacement of the pulsating pipe wall. A crash test camera with high frame rate of 1000 Hz (fps) was used.
|
|
|
Physical model of the bloodstream systemic resistance enabeling partical transport
Chlup, Hynek ; Macková, H. ; Žitný, R. ; Konvičková, S.
One of the basic elements of an experimental line simulating a cardiovascular system is an element simulating blood stream peripheral resistance. This element is being developed in the Laboratory of Human Biomechanics, CTU Prague. The element is a part of the experimental line for in vitro monitoring of pulse wave speed in thin walled elastic pipes and blood vessels. From the pulse wave speed measured invasively or non-invasively, material properties of the vessel walls could be determined. The element consists from numerous flow splits and resistance segments. The total hydraulic resistance could be controlled by number of active resistance segments.
|
|
|
Vývoj experimentální linky fyzikálního modelu okruhu kardiovaskulárního systému
Chlup, Hynek ; Konvičková, S.
Simulation line of cardiovascular systém will be designed for setting velocity pulse wave in inserted sample of vein, thinwall tube and identification material properties of wall sample. This is a systemic circuit. 5 circuits were created in which were compared two possible simulations systemic resistance working on different principle. It was observed behaviour of individual line elements and their mutual influence. Done experiments shown optimal arranging of line elements.
|
|
| |
|
| |
|
|
Vývoj simulační linky okruhu kardiovaskulárního systému
Chlup, Hynek ; Konvičková, S.
Simulation line of cardiovascular systém will be designed for setting velocity pulse wave in inserted sample of vein, thinwall tube and identification material properties of wall sample. This is a systemic circuit. 5 circuits were created in which were compared two possible simulations systemic resistance working on different principle. It was observed behaviour of individual line elements and their mutual influence. Done experiments shown optimal arranging of line elements.
|
|
| |
guest ::
