1 results about "Lancet devices" patented technology

This disclosure relates to a blood collection needle, comprising: an outer sheath; at least two spring arms disposed at a first end of the outer sheath; a blood collection needle, wherein the outer wall of the needle core of the blood collection needle is provided with at least two stop protrusions, the at least two stop protrusions being adapted to abut against the ends of the at least two spring arms respectively in the axial direction; a pressing member, adapted to be pressedly assembled to the first end in the direction of the needle outlet, including a pressing cap and at least two extensions; a drive spring, one end abutting against the pressing member and the other end abutting against the stop protrusions of the blood collection needle, wherein: the extensions are adapted to abut against the corresponding ends of the at least two spring arms when the pressing member moves in the direction of the needle outlet, thereby driving the ends of the at least two spring arms to deform or move laterally outward, so that the stop protrusions simultaneously disengage from abutting against the ends of the at least two spring arms and allow the needle core to move in the direction of needle outlet.