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2. Vacuum ejector - Wikipedia

   en.wikipedia.org/wiki/Vacuum_Ejector

   A vacuum ejector, or simply ejector, or aspirator, is a type of vacuum pump, which produces vacuum by means of the Venturi effect. In an ejector, a working fluid (liquid or gaseous) flows through a jet nozzle into a tube that first narrows and then expands in cross-sectional area.

3. Vacuum pump - Wikipedia

   en.wikipedia.org/wiki/Vacuum_pump

   The Roots blower is one example of a vacuum pump. A vacuum pump is a type of pump device that draws gas particles from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity. [1]

4. Vacuum aspiration - Wikipedia

   en.wikipedia.org/wiki/Vacuum_aspiration

   Single-use double-valve manual vacuum aspirator. Vacuum or suction aspiration is a procedure that uses a vacuum source to remove an embryo or fetus through the cervix.The procedure is performed to induce abortion, as a treatment for incomplete spontaneous abortion (otherwise commonly known as miscarriage) or retained fetal and placental tissue, or to obtain a sample of uterine lining ...

5. Büchner flask - Wikipedia

   en.wikipedia.org/wiki/Büchner_flask

   The other end of the hose can be connected to source of vacuum such as an aspirator, vacuum pump, or house vacuum. Preferably this is done through a trap (see below), which is designed to prevent the sucking back of water from the aspirator into the Büchner flask.

6. Aspirator (medicine) - Wikipedia

   en.wikipedia.org/wiki/Aspirator_(medicine)

   They consist of a vacuum pump, a vacuum regulator and gauge, a collection canister, and sometimes a bacterial filter. Plastic tubing is used to continuously draw fluid into the collection canister. In the past manually operated aspirators were used such as Potain's aspirator .

7. Suction filtration - Wikipedia

   en.wikipedia.org/wiki/Suction_filtration

   Diagram of the vacuum filtration apparatus. By flowing through the aspirator, water will suck out the air contained in the vacuum flask and the Büchner flask.There is therefore a difference in pressure between the exterior and the interior of the flasks : the contents of the Büchner funnel are sucked towards the vacuum flask.