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RISUnsteady Entrance Flow Development in a Straight Tube
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The entrance conditions for pulsatile flow are important in the understanding blood flow out of the heart and in developing regions at branches. The pulsatile entrance flow was solved using a ...
Pulsatile Flow in the Human Left Coronary Artery Bifurcation: Average Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The localization of atherosclerosis in the coronary arteries may be governed by local hemodynamic features. In this study, the pulsatile hemodynamics of the left coronary artery bifurcation was ...
Pulsatile Velocity Measurements in a Model of the Human Abdominal Aorta Under Resting Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Oscillations in near-wall velocity direction have been found to correlate with atherosclerotic plaque localization in the carotid sinus bifurcation. However, it remains unproven whether these ...
Design and Fabrication of a Mechanically Matched Vascular Graft
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The study provides a pathway to design a mechanics-matching vascular graft for an end-to-end anastomosis to a host artery. For functional equivalence, we submit that the graft and a host artery ...
Flexible Prosthetic Vein Valve
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Over 7 million Americans suffer from chronic venous insufficiency (CVI), a disease that affects the venous system of the lower extremities. Problems associated with CVI include ulcerations, ...
Mechanical Evaluation of Polyvinyl Alcohol Cryogels for Covered Stents
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Covered stents could reduce restenosis rates by preventing cellular migration with a physical barrier and may have reduced thrombotic complications if an appropriate material is selected. Previous ...
One-Dimensional Steady Inviscid Flow Through a Stenotic Collapsible Tube
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A one-dimensional inviscid solution for flow through a compliant tube with a stenosis is presented. The model is used to represent an artery with an atherosclerotic plaque and to investigate ...
Steady Flow and Wall Compression in Stenotic Arteries: A Three-Dimensional Thick-Wall Model With Fluid–Wall Interactions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Severe stenosis may cause critical flow and wall mechanical conditions related to artery fatigue, artery compression, and plaque rupture, which leads directly to heart attack and stroke. The ...
Effect of a Lipid Pool on Stress/Strain Distributions in Stenotic Arteries: 3-D Fluid-Structure Interactions (FSI) Models
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Nonlinear 3-D models with fluid-structure interactions (FSI) based on in vitro experiments are introduced and solved by ADINA to perform flow and stress/strain analysis for stenotic arteries with ...
PneumoniaCheck: A Device for Sampling Lower Airway Aerosols
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The pathogens causing pneumonia are difficult to identify because a high quality specimen from the lower lung is difficult to obtain. A new specimen collection device is designed to collect ...