초록 ▼

A dispenser comprising a housing forming a cylinder which is at one end closed by an end wall provided with an outlet pipe, and at the other end closed by a plunger projecting from this open end of the cylinder and being axially displaceable into the cylinder towards the end wall. The dispenser is c

A dispenser comprising a housing forming a cylinder which is at one end closed by an end wall provided with an outlet pipe, and at the other end closed by a plunger projecting from this open end of the cylinder and being axially displaceable into the cylinder towards the end wall. The dispenser is characterized in that the outer end of the plunger is secured to the bottom of a cup shaped cap and the cylinder is provided with outwardly projecting hooks that engage the cap preventing reuse of the device.

대표청구항 ▼

[ We claim:] [1.] A dispenser for dispensing a dosage of a drug comprising:a housing including a generally cylindrical portion having a forward end and an open distal end, wherein said housing includes at least one hook located adjacent said open, distal end;a plunger mechanism having a forward end

[ We claim:] [1.] A dispenser for dispensing a dosage of a drug comprising:a housing including a generally cylindrical portion having a forward end and an open distal end, wherein said housing includes at least one hook located adjacent said open, distal end;a plunger mechanism having a forward end received in said cylindrical portion for axial displacement therein and for sealing the distal end of said housing, and a plunger rod which projects rearwardly out through the open, distal end of said housing and terminates at a distal end; anda cup-shaped cap having a cylindrical side wall and a bottom wall secured to the distal end of said plunger rod, wherein said side wall has an internal diameter larger than the cylindrical portion of said housing such that said cap can slide axially over the cylindrical portion of said housing, and wherein said cap includes a catch positioned axially so as to engage said hook after said cap, starting from an initial position representing an unused state of said dispenser, slides a predetermined distance over the cylindrical portion of said housing, to prevent said cap thereafter from being retracted.