Patent ID: 7645270
Filing Date: 2010-01-12
Classification: A61M

Abstract:
1. A take-off needle comprising a main hollow lance having a distal end adapted to perform a pricking operation, said hollow lance being connected to two pipes, each provided with a spigot for it to be connected to a tube, said needle having a body for holding the main hollow lance, said holding body having an interior geometry defining two internal cylindrical surfaces forming said pipes and in that the main hollow lance comprises, at its proximal end, a sleeve having an internal channel of which the distal end is connected to the proximal end of the main hollow lance and of which the proximal end opens into the holding body, said sleeve comprising at its proximal end two crescent-shaped surfaces adjacent the internal channel and inclined towards the interior of the internal channel and towards the distal end of the sleeve, each of said crescent-shaped surfaces being disposed so as to extend in line with one of the internal cylindrical surfaces through the interior geometry of the holding body.