| 摘要 |
<p>A device of the manual syringe type (10) for proportioning and dispensing fluid or pasty products comprises a main body (12) provided with seizing means (20) and with guide means (19) between which a cartridge member (23), having a substantially uniform, preferably cylindrical section is inserted and guided along a straight path. The device also comprises an at least partially elastic piston (24), adapted to exert a sealing action against the inner walls of the cartridge (23). The main body (12) also comprises a plunger member (21) whereon a needle (11) is fitted. After a displacement of the main body (12) relative to the cartridge (23) the plunger member (21) causes the piston (24) to slide inside the cartridge (23) for drawing a fluid or pasty product therefrom and dispensing it through the needle (11).</p> |
