Self-administration device for liquid drugs

摘要

A self-administration device comprises a cylindrical casing (11) opened at one end but closed at the opposite end, the closed opposite end being provided with a drug inflow port (12) and a drug outflow port (13); an easily deformable and restorable reservoir housed in the casing and held by the closed end of the casing, the inflow port and outflow port being opened to the interior of the reservoir; pushing means (14) provided at the open end of the casing and being movable along an inner wall of said casing to exert a pressure on the reservoir; and control means for adjusting a moving distance of the pushing means to control a dosage of a liquid drug. <IMAGE>