| 摘要 |
The invention relates to a pricking device for taking blood for medical tests. Said pricking device comprises a base (1; 21; 41; 61), at least one needle (10; 30; 50; 70) which is arranged therein, of which a pointed end (9; 29; 49; 69) can be deployed, and which is provided with a needle retaining element (8; 28; 48; 68) that at least partly embraces the needle (10; 30; 50; 70), and a manual actuating element (12; 32; 52; 72) for inducing a sliding movement (19) of the needle (10; 30; 50; 70) along with the needle retaining element (8; 28; 48; 68) relative to the base (1; 21; 41, 61). A slidable or pivotable plastic spring element (4; 24; 44; 64) is disposed in at least one component (2; 22; 42; 62) located in the base (1; 21; 41; 61) in order to generate a preload by means of the manual actuating element (12; 32; 52; 72) which is connected to a control cam section (13; 33; 53; 73) that is slidable or pivotable within the base (1; 21; 41; 61). The needle retaining element (8; 28; 48; 68) is connected to the control cam section (13; 33; 53; 73) and can autonomously be moved forward and backward (18-20; 38-40) during a releasing process of the plastic spring element (4; 24; 44; 64) by traveling along the sliding or pivoting control cam section (13; 33; 53; 73). |
