| 摘要 |
A ventilation arrangement for cannulas is characterized by, at the back of a lateral flange (3) on a cannula grip (2) two reciprocally radically placed displayed sleeves (4, 5) extend which have open free ends of which the inner sleeve (5) is arranged to interact with a cannular tube and is longer than the outer sleeve (4), and that a closed end equipped with a cap (6), passes over these sleeves, whereby one or more tight, blood penetrable passages (8) exist between that section of the cap (6), which is turned towards the inner sleeve's (5) prominent part beyond the free end of the outer sleeve (4), and this part which passage connects that area (9), which is defined between the inner sleeve's (5) free end and the cap's closed end, and that space (10), which is defined between the outer sleeve's (4) inner wall and the inner sleeve's (5) directly opposite placed inner wall, which latter space (10) has an opening (11) towards the surrounding area.<IMAGE> |
