| 摘要 |
Lancet device for scratching the skin of a patient, especially for collecting samples of blood for diagnostic purposes, in which an axially movable piston (5), which has a puncturing tip (7), is provided with destructible holding means (11) and is advanced by a pretensioned compression spring (9) from the sleeve (1) when the holding means (11) are destroyed by a pressure member (2), is arranged in a sleeve (1). A restoring spring (10) located on the opposite end of the piston (5) catches the advancing piston (5) and forces it back after piercing into the sleeve (1), where it is held fast between the compression spring (9) and the restoring spring (10), so that it cannot emerge from the sleeve again. <IMAGE> |
