Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Gregor Ochsner"'
Autor:
Raffael Amacher, Jonas Asprion, Gregor Ochsner, Hendrik Tevaearai, Markus J. Wilhelm, André Plass, Alois Amstutz, Stijn Vandenberghe, Marianne Schmid Daners
Publikováno v:
Bioengineering, Vol 1, Iss 1, Pp 22-46 (2013)
The current paper presents a methodology for the derivation of optimal operating strategies for turbo dynamic ventricular assist devices (tVADs). In current clinical practice, tVADs are typically operated at a constant rotational speed, resulting in
Externí odkaz:
https://doaj.org/article/dccde7918122453ab6214d77f3030cad
Autor:
Marianne Schmid Daners, Gregor Ochsner, Mirko Meboldt, Anastasios Petrou, Volkmar Falk, Panagiotis Pergantis, Raffael Amacher, Thomas Krabatsch
Publikováno v:
Biomedical Engineering / Biomedizinische Technik, 62 (6)
The current paper analyzes the performance of a physiological controller for turbodynamic ventricular assist devices (tVADs) during acute patho-physiological events. The numerical model of the human blood circulation implemented on our hybrid mock ci
Standardized Comparison of Selected Physiological Controllers for Rotary Blood Pumps: In Vitro Study
Autor:
Mirko Meboldt, Anastasios Petrou, Marianne Schmid Daners, Gregor Ochsner, Jongseok Lee, Seraina A. Dual
Publikováno v:
Artificial Organs. 42:E29-E42
Various physiological controllers for left ventricular assist devices (LVADs) have been developed to prevent flow conditions that may lead to left ventricular (LV) suction and overload. In the current study, we selected and implemented six of the mos
Autor:
Raffael Amacher, Anastasios Petrou, Stefan Boës, Gregor Ochsner, Mirko Meboldt, Marianne Schmid Daners
Publikováno v:
Artificial Organs. 42:68-77
A mock circulation allows the in vitro investigation, development, and testing of ventricular assist devices. An aqueous-glycerol solution is commonly used to mimic the viscosity of blood. Due to evaporation and temperature changes, the viscosity of
Autor:
Raffael Amacher, Mirko Meboldt, Gregor Ochsner, Mathias Rebholz, Anastasios Petrou, Panagiotis Pergantis, Marianne Schmid Daners
Publikováno v:
Artificial Organs. 40:842-855
The current article presents a novel physiological feedback controller for turbodynamic ventricular assist devices (tVADs). This controller is based on the recording of the left ventricular (LV) pressure measured at the inlet cannula of a tVAD thus r
Autor:
Barbara Röhrnbauer, Raffael Amacher, Mirko Meboldt, Marianne Schmid Daners, Silvan Staufert, Nikola Cesarovic, Anastasios Petrou, Christofer Hierold, Markus J. Wilhelm, Francesco Maisano, Gregor Ochsner
Publikováno v:
ASAIO journal (American Society for Artificial Internal Organs : 1992). 63(5)
Turbodynamic left ventricular assist devices (LVADs) provide a continuous flow depending on the speed at which the pump is set, and do not adapt to the changing requirements of the patient. The limited adaptation of the pump flow (PF) to the amount o
Standardized Comparison of Selected Physiological Controllers for Rotary Blood Pumps: In Vitro Study
Autor:
Anastasios, Petrou, Jongseok, Lee, Seraina, Dual, Gregor, Ochsner, Mirko, Meboldt, Marianne, Schmid Daners
Publikováno v:
Artificial organs. 42(3)
Various physiological controllers for left ventricular assist devices (LVADs) have been developed to prevent flow conditions that may lead to left ventricular (LV) suction and overload. In the current study, we selected and implemented six of the mos
Autor:
Dimos Poulikakos, Marianne Schmid Daners, Friedrich Kaufmann, Raffael Amacher, Markus J. Wilhelm, Volkmar Falk, Edoardo Mazza, Mirko Meboldt, Aldo Ferrari, Gregor Ochsner
Publikováno v:
Annals of biomedical engineering. 45(8)
Over the last few decades, the left ventricular assist device (LVAD) technology has been tremendously improved transitioning from large and noisy paracorporeal volume displacement pumps to small implantable turbodynamic devices with only a single tra
Autor:
Stefan, Boës, Gregor, Ochsner, Raffael, Amacher, Anastasios, Petrou, Mirko, Meboldt, Marianne, Schmid Daners
Publikováno v:
Artificial organs. 42(1)
A mock circulation allows the in vitro investigation, development, and testing of ventricular assist devices. An aqueous-glycerol solution is commonly used to mimic the viscosity of blood. Due to evaporation and temperature changes, the viscosity of
Publikováno v:
Artificial Organs. 38:867-875
Turbodynamic blood pumps are used clinically as ventricular assist devices (VADs). They are mostly operated at a constant rotational speed, which results in a reduced pulsatility. Previous research has analyzed pulsing pump speeds (speed modulation)