| 摘要 |
The subject of the invention is a safety protective sheath for forehead vein assembly, which safety protective sheath has a purpose of providing protection against injury during the use of needles, particularly when a so called forehead vein assembly is used that can be fastened to the body. The safety protective sheath according to the invention consisting of a middle part having a needle at one of its end, a fluid conducting pipe connected to its other end, and a butterfly shaped fastener is connected to this pipe. It is characterised by that, the a ring (4) is connected to the middle part (14) located between the needle (2) and the fluid conducting pipe (1), there is a double fastening tongue (5) created on the outside of ring (4), which has a flexible serrated branch (6) and a flexible curved branch (7), on the end of which there is an outward protruding node (8); the freely moving ends of the double fastening tongue (5) are aligned in a direction opposite to the point of the needle (2); a protecting sheath (9) is installed in the ring (4) in a movable manner, the end of protecting sheath (9) towards the needle (2) is closed, a slit (13) is created up to the other end to allow pushing of needle (2) forward; the protecting sheath (9) covers the needle (2) before and after use; on the end of the protecting sheath (9) being opposite to the point of the needle (2) a closed terminating ring (11) is mounted, on which a gate (10) is created, this gate (10) has a reducing shape and a size, so that both branches of the double fastening tongue (5) together with the protruding nodes (8) at its ends can pass through its narrowest part. |
