| 摘要 |
<p>A description is given of an assembly (21) consisting of needle (1) and means (2) for supporting it and connecting it to a 'pen'-type syringe (8), for injections or for punctures for capillary samples, in which assembly the said supporting and connecting means consist of a cylindrical housing (2), inside the cavity (2c) of which there slides a discoidal body (3), in the centre of which the needle (1) is embedded perpendicularly, this body resting against elastic means (4) which are housed in the same cavity (2c) and which, when not under any force, keep the said needle (1) entirely contained inside the housing (2), the latter possessing at one end (2e) means for connecting it reversibly to the syringe, and at the other end (2f) an end wall (5) with a central hole (5f) to allow the said needle (1) to pass through it and out of the housing (2), when pressure is applied to the abovementioned elastic means (4) via the discoidal body (3).</p> |
