Results 51 to 60 of about 5,179,678 (338)

Evaluation of the efficiency of a new pulsatile flow‑generating circulatory-assist system in rotary blood pumps. Research on a mathematical model

open access: yesВестник трансплантологии и искусственных органов, 2022
Objective: to study the effect of a pulsatile flow-generation (PFG) device on the basic hemodynamic parameters of the circulatory system using a mathematical model.Results. Modelling and simulation showed that the use of PFG significantly (76%) increases
G. P. Itkin   +4 more
doaj   +1 more source

Microvascular Responsiveness to Pulsatile and Nonpulsatile Flow During Cardiopulmonary Bypass.

open access: yesAnnals of Thoracic Surgery, 2018
BACKGROUND Pulsatile perfusion may offer microcirculatory advantages over conventional nonpulsatile perfusion during cardiopulmonary bypass (CPB). Here, we present direct visual evidence of microvascular perfusion and vasoreactivity between perfusion ...
Michael P. O'Neil   +5 more
semanticscholar   +1 more source

Pulsatile flow past an oscillating cylinder [PDF]

open access: yesPhysics of Fluids, 2011
A fundamental study to characterize the flow around an oscillating cylinder in a pulsatile flow environment is investigated. This work is motivated by a new proposed design of the total artificial lung (TAL), which is envisioned to provide better gas exchange.
Qamar, Adnan   +2 more
openaire   +3 more sources

3D‐Printed Dynamic Heart Model With Left‐Side Anatomy and Integrated Sensor for Edge‐to‐Edge Repair and Regurgitation Reduction

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents a fully synthetic, 3D‐printed dynamic heart model with left‐side anatomy featuring sutured mitral valve chordae tendineae analogs, embedded actuators for physiologic wall contraction, and customized flexible pressure sensors for the left ventricle.
Alejandro Guillen Obando   +7 more
wiley   +1 more source

Effect of pulsatile flow to drag of a two-dimensional bluff body

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Drag and velocity measurement on a two-dimensional bluff body has been performed in a pulsatile flow. Circular and rectangular cylinders were selected in the present study.
Kouki ISERI   +2 more
doaj   +1 more source

Modelling of the pulsatile blood flow in an arterial tree of retinal vasculature [PDF]

open access: yes, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009)   +3 more
core  

Magnetic Micro‐ and Nanorobots for Precision Thrombolysis: Design Strategies and Translational Challenges

open access: yesAdvanced Robotics Research, EarlyView.
Micro‐ and nanorobots for targeted thrombolysis. This perspective elaborates on the clinical indication of blood clot disorders and current limitations for treatment. As a novel, alternative solution, micro‐ and nanorobots can be used to treat and break down thrombi.
Joshua M. Mesfin   +3 more
wiley   +1 more source

A comment on pulsatile pipe flow [PDF]

open access: yes, 2011
This article is concerned with analytic solutions of flows in cylindrical and annular pipes subject to an arbitrary time dependent pressure gradient and arbitrary initial ...
McGinty, Sean, Mckee, Sean
core   +1 more source

Hemodynamics of Stent Implantation Procedures in Coronary Bifurcations: an in vitro study [PDF]

open access: yes, 2016
Stent implantation in coronary bifurcations presents unique challenges and currently there is no universally accepted stent deployment approach. Despite clinical and computational studies, to date, the effect of each stent implantation method on the ...
Brindise, Melissa C.   +4 more
core   +5 more sources

Optimization of Magnetic Milli‐Spinner for Robotic Endovascular Intervention

open access: yesAdvanced Robotics Research, EarlyView.
This work presents the design optimization of a multifunctional magnetic milli‐spinner for high‐speed propulsion and efficient clot debulking. The optimized design achieves an ultrafast swimming velocity of 55 cm/s (≈175 body lengths/s) in saline water, enabling stable upstream swimming against strong physiological flows and establishing magnetic milli‐
Lu Lu   +3 more
wiley   +1 more source

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