Valveless pum** based on Liebau mechanism entails asymmetrical positioning of the
compression site relative to the attachment sites of the pump's elastic segment to the rest of …

This study investigates the physics of the longitudinal stretching-based wave pum**
mechanism, a novel extension of the traditional impedance pump. In its simplest form, an …

Asymmetric pum** can be achieved by periodically compressing a flexible tube in its
plane of symmetry using an actuator, as long as the rigid pipes connected to its ends are …

Impedance pum** is a mechanism that generates flow in a compliant vessel by repeatedly
actuating the vessel asymmetrically, without employing any internal valves, blades, or other …

Liebau pump is a tubular, non-peristaltic, pulsatile pump capable of creating unidirectional
flow in the absence of valves. It requires asymmetrical positioning of the pincher relative to …

The embryonic heart of vertebrate embryos, including humans, has a tubular thick-wall
structure when it first starts to beat. The tubular embryonic heart (TEH) does not have valves …

The physical mechanism that drives blood flow in the valveless tubular embryonic heart is
still debatable whether it is peristaltic flow or valveless dynamic suction. Previous studies of …

Impedance pump is defined as a type of valveless pum** mechanism, where an elastic
tube is joined with a tube of different impedance, a periodic asymmetrical compression on …

Impedance pump is a simple valveless pum** mechanism, where an elastic tube is joined
to a more rigid one; a periodic asymmetrical pinching on the elastic tube will produce a …

Roller pumps are widely used in many medical procedures including cardiopulmonary
bypass, left/right ventricular assist, and hemodialysis. However, to date, the problem of the …