This might seem strange, but a Venturi pump—named after the Italian physicist who invented it—takes advantage of the same effect, simply by virtue of its shape. Any high-velocity, high ...

Multi-stage venturi vacuum pumps feature: Filters to prevent the pump from clogging. Lower upfront costs. Greater flow rates with less air consumption at lower vacuum levels less 12 in.

Eric Mertens, MD, has developed a technique with a venturi-type phaco machine that he says allows him to use a high vacuum level to minimize use of phaco power. Venturi pump systems allow the ...