| 摘要 |
1. Test tube for blood samples for a blood removing device, which tube is closed by a seal and adapted to be evacuated and includes a hollow cylindrical holder which has a double-ended hollow needle at one end and into whose other, open end the test tube may be slid in so far that one end of the needle pierces the seal, whereby the test tube is covered at its open end by a closure element, e.g. of aluminium foil, which additionally carries on its exterior a sealing membrane of rubberelastic material, e.g. silicon rubber, and comprises a flat foil, preferably of constant thickness, which is provided on its surface directed towards the interior of the test tube with a continuous heat- sealable layer, characterised in that the closure element (6) is fixed by means of the heat-sealable layer (7) to a flange (5) of a cap (1) having a double wall (2, 4), which cap surrounds the open end (11) of the test tube (10) from the inside and the outside and is press fitted in it. |
