Test gas cuvette for the concentration of gaseous constituents and a process for the preparation of a test gas cuvette

摘要

Test gas cuvette (3) for measuring the concentration of gaseous constituents of a breath current of a patient (1), consisting of a thin-walled inner part (11), which includes two perpendicular to the direction of flow, which is arranged opposite, the breath flow limiting walls (16), wherein the walls (16) are transparent to infrared light, an outer part (10), which in a center piece (7), in an initially - and a parent piece (6, 8) is divided, wherein the entry piece (6) as a connector for connection with a (1) to the patient''s breathing hose 21 leading (2.1) and the parent piece as a connector for connection with a a respiratory device (4) to a breathing hose 21 leading (2.2) is carried out and the central piece (7) which are arranged two perpendicular to the direction of flow, opposing recesses, with the walls (16) of the inner part (11) in each case form a window (9), wherein the region outside of the window (9) of the inner part (11) is thermally connected to the outer part (10) is connected and the outer part (10) the inner part (11) completely surrounds.