Related Experiment Video
Updated: Aug 24, 2025

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices
Published on: September 2, 2009
The ACURATE neo™ and neo2™ Valve Systems
1Department of Cardiovascular Surgery, Houston Methodist DeBakey Heart and Vascular Center, Houston, TX, USA.
Abstract:
Based on the strength of data from randomized trials and real-world clinical studies, transcatheter aortic valve replacement (TAVR) has become a popular and effective alternative to surgical valve replacement in patients with symptomatic aortic stenosis. The ACURATE neo™ (Boston Scientific, Marlborough, MA, USA) valve system has been commercially available for transfemoral TAVR in Europe since 2014. ACURATE neo2™ is an evolution of the neo design and was declared CE marked by the manufacturer in 2020. The neo and neo2 valves have been studied in high-risk patients, and the currently active randomized trial for neo2 will include over 1,500 patients of all risk categories in the USA. The goal of this review is to help inform the TAVR community about the ACURATE valve.
Related Concept Videos
Pipe Flowrate Measurement
The orifice meter is a simple,...
Open and closed-loop control systems
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
Pressure Gauges
Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
Single Pipe Systems
In a Type I problem, fluid properties (density and viscosity), pipe characteristics (including diameter, length, and surface roughness), and the flow rate or average velocity are...
Pipe Flowrate Measurement: Problem Solving

