| 摘要 |
<p>Syringe, for injections and for the withdrawal of samples comprises a tubular body, fitted with a plug at its open end, and a needle carrier; having an internal canal and three fins which act as guides so that the carrier can penetrate and slide in the body. The needle carrier has a shoulder at one end, shaped like a bobbin, and a cone for receiving needle. A perforation needle is fitted at the other end andis inserted in the internal canal. The plug is provided with a screwed cavity which receives a screwed element to firmly fixes the needle carrier to the plug. The body itself is used to transport the sample which can be analysed in the tube. For injections the tube is supplied filled with the desired soln.</p> |
