negative-pressure device

negative-pressure device

An apparatus used to counter the effects of weightlessness by applying a partial vacuum to the legs and lower torso.
References in periodicals archive ?
Currently, there is one negative-pressure device on the market, the VAC (Vacuum Assisted Closure) system, marketed by Kinetic Concepts in San Antonio.
Most civilian emergency personnel use the self-contained and positive-pressure equipment, while military personnel use the negative-pressure devices.