Patent ID: 8146593
Filing Date: 2012-04-03
Classification: A61M,B01D,Y02C,Y10S

Abstract:
1. A process for separating carbon dioxide (CO 2 ) from a breathing gas mixture, the process comprising: providing a breathing gas device which provides an expired breathing gas mixture flow; providing a breathing gas mixture flow space through which the expired breathing gas mixture flows; providing another gas flow space; providing a separating element comprising a selective semipermeable membrane separating volume areas of said breathing gas mixture flow space and said another gas flow space on each side of said selective semipermeable membrane, said selective semipermeable membrane defining a breathing gas mixture guide on one side of said selective semipermeable membrane for forming a separating element, said selective semipermeable membrane comprising a porous polymer support structure and amine groups bound covalently to the polymer, through which transport of the components of the gas mixture can take place, said selective semipermeable membrane having a permeability for CO providing a means for reducing CO guiding the expired breathing gas mixture on one side of the selective and semipermeable membrane such that transport of the components of the gas mixture takes place through the selective and semipermeable membrane.