| 摘要 |
<p>The invention relates to an injection device, comprising a cartridge (1), containing a liquid, an injection needle (3), fixed on a front piece of the cartridge with a line (6) and a piston (2),defining a rear wall of the cartridge which is displaced forwards from the rear, in order to eject the liquid from the needle (3), through the line (6). According to the invention, the piston (2) is elastic and deforms as a function of the resistance encountered by the liquid ejected from the cartridge (1). Said device comprises means for damping the variations in the flow of liquid through the line (6) as a result of the deformation of the piston.</p> |
