| 摘要 |
<p>A syringe capable of adjusting the length of a needle is disclosed. The syringe includes a barrel filled with an injection therein and having a mounting portion protruding from a front portion of the barrel, a plunger slidably engaged with the barrel for pressing the injection, a needle hub having an inner diameter corresponding to an outer diameter of the mounting portion, the needle hub being forcibly fitted in the mounting portion and provided with a threaded portion at an outer periphery of the needle hub, and an adjusting member threadedly engaged with the outer periphery of the needle hub for adjusting the length of the exposed needle. The adjusting member can be produced in mass by simply changing the design of an injection mold, which can reduce a production cost in comparison to a conventional way in which needles in various specifications should be produced. When the adjusting member is mounted in a kind of syringe, it is convenient to repeatedly inject the injection in a desired depth.</p> |
