| 摘要 |
<p>Made up of a cylindrical body (1) containing the medicinal product, which is closed at one of its ends by means of the classic piston (4) for propelling said product to the outside through a mouthpiece (6) and a complementary needle (8). Its characteristics are based on the fact that said cylindrically-shaped mouthpiece (6) houses a valve (10) inside, which keeps the chamber (2) sealed until the syringe is to be used, when said valve is moved axially by the pressure generated in the chamber (2) until the channels (12) in its side wall communicate with the head (7) of the needle (8) and allow the liquid to exit to the outside. <IMAGE></p> |
