advanced membrane technology thoughtfully designed for ease-of-use and sustainability
memsorb™ uses patented advanced medical membrane technology to filter CO2 from anesthetic circuits rather than absorption via a chemical reaction. This next generation technology relies on a polymeric membrane (similar to those used in cardiac oxygenators) that selectively allows CO2 to leave the rebreathing system, while maintaining the anesthetic vapor in the circuit.
The principle of membrane separation can be observed in the figure (right).
CO2 travels through the membrane material and is removed from the lumen of the hollow fiber membrane by means of a flush gas. The anesthetic vapor cannot travel through the membrane material and is maintained within the circuit.
|Method of CO2 removal||Chemical reaction that binds CO2 to granulate||Passive diffusion over membrane CO2 is flushed out of the unit via a flush gas|
|Useful life||Approximately 1 day depending on fresh gas flow||12 months|
|Exhaustion indicator||Color change, inspired CO2 measure||N/A. Refer to expiry date indicated on label|
|Chemical reaction||Yes||No. The medical membranes used in memsorb™ are inert|
|Potential for compound production||Yes||No|
|Condensation||Yes. Chemical reaction produces heat + water leading to machine-side condensation||No. Eliminates all machine side condensation|