| 摘要 |
The safety vacuum syringe for blood sampling comprises a needle head (3) having a cannula needle with two needle tips at opposite ends held by a needle holder at a middle. A barrel (1) has an eccentric reduced front portion and a bottom opening end. An eccentric reduced lining tube (33) is inserted in the front portion of the barrel. A reversible front cover (6) and reversible rear cover (2) can be pressed into the cannula needle thoroughly in the barrel after using. The syringe includes a vacuum container (5) having a plug sealed with front opening. A tubular connector connects the reduced lining tube to the vacuum container. |
