| 摘要 |
Pump dispensers are described which are specially adapted for oral administration of medicines, e.g. to children. The pump (1) receives fluid product through a valved inlet from a container (100), preferably of the airless type with a follower piston (9). The dispenser may be a movable-nozzle or fixed-nozzle dispenser. The discharge outlet of the dispenser has a stub nozzle (6) incorporating a rearwardly- acting closure valve (96); a spring (98) urges the closure valve (96) forward to close a discharge opening (63) of the stub nozzle (6). This prevents dispensing of product unless a separate nozzle attachment (8) is coupled to the stub nozzle (6). The nozzle attachment (8) is shaped for oral dosing, i.e. for putting in the mouth, and has an internal rearwardly-projecting actuating structure (86) which, when the nozzle attachment (8) is coupled onto the stub nozzle (6), pushes the closure valve (96) open. When the nozzle attachment (8) is removed the spring (98) closes the outlet again. Child-resistant features are described for fitting the nozzle attachment to the stub nozzle. |
