| 摘要 |
The device for collecting blood specimens by venipuncture for laboratory tests consists of a hollow support (10) fitted with a double-ended needle at one end and a sleeve (1) with a plunger (5) that can be fitted into and removed from the cavity in said support (10), said sleeve (1) being sealed at one end by a pierceable membrane. In a preferred embodiment a mechanical system for automatic operation of the plunger is also envisaged. The double-ended needle consists of an active needle that enters the vein, positioned eccentrically to the axis of the support, and a passive needle (21) that punctures the sleeve membrane. |
