Doctors at St. Luke’s Medical Center celebrated a new type of artificial heart on Thursday, which was implanted into a patient for the first time earlier this month. The new device, named BiVACOR, is ...

The Ahmed ClearPath (New World Medical, Rancho Cucamonga, California), a valveless glaucoma drainage device, arrived on the market in late 2019. In ordinary times, ophthalmologists would have used the ...

New Zealand's Duke Engines has been busy developing and demonstrating excellent results with a bizarre axial engine prototype that completely does away with valves, while delivering excellent power ...

The PDS-100 Programmable Dispensing System uses valveless pumping that accurately delivers gearbox lubricating grease, independent of viscosity, at pressures low enough to prevent seal damage to the ...

Valveless pumping[1] is an ideal and biomimetic way of fluid transportation due to its simplicity and absence of moving elements which may cause fatigue problems. However, the issue of low efficiency ...

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We present a three-dimensional model of flow driven by pumping without valves (valveless pumping) in a closed loop system in which the closed loop of tubing is immersed in an incompressible viscous ...

Dialysis is typically performed in a hospital or clinical dialysis center, where a patient’s blood is drawn through an access point, filtered through a dialysis machine, and then returned to the body.

"A good lightweight design that a beginner can build uses a tubular steel tailpipe and intake welded to a combustion chamber," Cottrill says. "The chamber is a long cone (the chamber wall) and a blunt ...

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