Vacuum blood withdrawal cannula, has needle attached to holder of chamber with angle of specific degrees, where needle is locked with precision lancet edge for piercing blood vessel and bevel for piercing vacuum glass

摘要

The cannula has a vacuum blood withdrawal chamber (5) comprising a holder (6) and a color coding (4), and a needle (1) that is attached to the holder of the chamber with an angle of 3-80 degrees. The needle is locked in the holder from a side with a precision lancet edge (3) for piercing blood vessel and a bevel (7) for piercing a vacuum glass. The cannula is gamma sterilized and manufactures with a size of specific millimeters.