MEMBRANE OXYGENATOR Meaning and
Definition
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A membrane oxygenator is a medical device that is used in cardiopulmonary bypass procedures to replace the function of the lungs temporarily. It consists of a series of hollow fibers made from a biocompatible material, typically polypropylene or silicone. These fibers are arranged in a bundle and are contained within a housing or shell.
During the procedure, the patient's blood is directed through the hollow fibers while a mixture of oxygen and other gases is circulated outside the fibers. The blood and gas flow in opposite directions, allowing for efficient transfer of oxygen from the gas to the blood and removal of carbon dioxide, mimicking the gas exchange function of the lungs.
The membrane oxygenator operates on the principle of diffusion and can provide highly effective oxygenation and carbon dioxide removal. The device also typically incorporates a heat exchanger to warm or cool the blood as needed.
Membrane oxygenators are widely used in various cardiac surgeries, such as coronary artery bypass grafting, valve replacement, or heart transplantation, where temporary bypass circulation is required. They are also employed in extracorporeal membrane oxygenation (ECMO), a life-support system that provides prolonged cardiopulmonary support for patients with severe respiratory failure or cardiac dysfunction.
Overall, the membrane oxygenator plays a critical role in ensuring adequate gas exchange during cardiopulmonary bypass, allowing surgeons to perform complex procedures, while minimizing the risk of complications associated with a disrupted lung function.
Common Misspellings for MEMBRANE OXYGENATOR
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Etymology of MEMBRANE OXYGENATOR
The word "membrane" comes from the Latin word "membrāna" which means skin or a thin layer. "Oxygenator" is derived from the word "oxygenate", which is formed from the Latin word "oxygēnium" (oxygen) and the suffix "-ate", indicating the action of oxygen supply. Therefore, the term "Membrane Oxygenator" is a combination of "membrane" referring to a thin layer or skin and "oxygenator" indicating the action of providing oxygen.
