What are the gas fibers in an oxygenator called?

The gas fibers in an oxygenator are made of Polymethylpentene (PMP) due to its specific properties that make it suitable for oxygen diffusion. PMP is known for its excellent gas permeability, which is critical for the function of an oxygenator, as it allows for effective transfer of oxygen into the blood and removal of carbon dioxide. Additionally, PMP has a low density and high molecular weight, which contributes to its durability and resistance to moisture, maintaining efficiency in the oxygenation process.

The choice of PMP is also influenced by its biocompatibility, which reduces the risk of adverse reactions in patients during ECMO. Its lightweight characteristics can also facilitate easier handling and configuration during the ECMO setup. These features highlight why PMP is the preferred material for the gas fibers in oxygenators.