Patent ID: 6077248
Filing Date: 2000-06-20
Classification: A61B,A61M

Abstract:
A puncturing set comprising:a housing including a hose extension having a free end;a tubular puncturing needle disposed in the housing and extending axially substantially through the hose extension, the puncturing needle having a forward upstream pointed end, the puncturing needle being axially movable between an extended position and a retracted position, the pointed end of the puncturing needle extending axially past the free end and disposed outside of the hose extension in the extended position and being disposed inside the hose extension in the retracted position;a locking mechanism for locking the puncturing needle in the retracted position;a fluid withdrawal mechanism arranged at an aft downstream end of the puncturing needle; anda sealing arrangement for sealing a space between the puncturing needle and the housing at least when the puncturing needle is in the retracted position.