Search results
Results from the WOW.Com Content Network
Suction is the day-to-day term for the movement of gases or liquids along a pressure gradient with the implication that the movement occurs because the lower pressure pulls the gas or liquid. However, the forces acting in this case do not originate from just the lower pressure side, but also from the side of the higher pressure, as a reaction ...
In many hospitals and other health facilities, suction is typically provided by suction regulators, connected to a central medical vacuum supply by way of a pipeline system. The plastic, rigid Yankauer suction tip is one type of tip that may be attached to a suction device. Another is the plastic, nonrigid French or whistle tip catheter.
A suction cup, also known as a sucker, is a device or object that uses the negative fluid pressure of air or water to adhere to nonporous surfaces, creating a partial vacuum. [ 1 ] Suction cups occur in nature on the bodies of some animals such as octopuses and squid , and have been reproduced artificially for numerous purposes.
A suction cup is placed onto the head of the baby and the suction draws the skin from the scalp into the cup. Correct placement of the cup directly over the flexion point , about 3 cm anterior from the occipital (posterior) fontanelle , is critical to the success of a vacuum extraction. [ 2 ]
The suction is the maximum pressure difference that the pump can create. For example, a typical domestic model has a suction of about negative 20 kPa. [citation needed] This means that it can lower the pressure inside the hose from normal atmospheric pressure (about 100 kPa) by 20 kPa. The higher the suction rating, the more powerful the cleaner.
Potain's aspirator. A medical aspirator is a suction machine used to remove mucus, blood, and other bodily fluids from a patient.They can be used during surgical procedures but an operating theater is generally equipped with a central system of vacuum tubes. [1]
The predecessor to the vacuum pump was the suction pump. Dual-action suction pumps were found in the city of Pompeii. [2] Arabic engineer Al-Jazari later described dual-action suction pumps as part of water-raising machines in the 13th century. He also said that a suction pump was used in siphons to discharge Greek fire. [3]
Sidney Yankauer (1872–1932) was an American otolaryngologist.A graduate of the City College of New York and the College of Physicians and Surgeons, he was among the first surgeons to specialize in problems of the ear, nose and throat.