A medicament source has an inner pressurized container 1 of stamped aluminum, a substance-release valve device 2 sealed across an end of the container by means of a crimp cap 3 and spout 4 displaceable inward of the container against a spring (not shown) of the valve device for release substance.The source also includes an outer sleeve 11 enclosing the inner container along its length, across its end 14 remote from the spout and at least partially at its spout end 15. In this embodiment, the sleeve is also of stamped aluminum, with a circularly cylindrical body 16, a closed end 17 and an open end 18 at which it has a turned-in rim 19, captivating the inner container in the outer sleeve by engagement under the crimp cap. Only the spout 4 extends from the outer sleeve.Between the end 14 of the inner container opposite from the spout 4 and the end 17 of the outer sleeve is accommodated an electronic counter 20, of the type which increments of more precisely decrements each time a compressive force is applied across it. The counter per se is of a known type. It has a display 21 aligned with a window 22 in the end 17 of the outer sleeve.In use, with the spout received in the junction member of an inhaler body (not shown), pressure on the end 17 of the outer sleeve urges it and the inner container down, with the spout being pushed inwards and causing the valve to release a dose through the junction member. The force to actuate the valve is transmitted from the outer sleeve to the inner container via the counter, which decrements its display. Thus the user can monitor how many doses remain in the source by viewing the display through the window.一種醫藥來源,其具有:一內加壓容器1,其由沖壓鋁金屬所製成;和一物質釋放閥門裝置2,藉由一彎邊蓋3,其被密封在橫越該內加壓容器的一末端之上;及一頂靠著該閥門裝置一彈簧(未表示)的噴管4,該噴管可向該內加壓容器的內部位移,以用於釋放物質。該來源同時包括一外套筒11,其圍繞著該內加壓容器,沿著該內加壓容器的長度12,橫過它遠離該噴管的末端14,並至少部分地在它的噴管末端15。在此實施例裡,該套筒11同樣是由沖壓鋁金屬所製成,其具有:一圓筒體16、一封閉末端17和一開放末端18,在該開放末端18處,其具有一內彎邊緣19,藉著嚙合在該彎邊蓋下方,將該內加壓容器固持在該外套筒之中。只有該噴管4從該外套筒向外延伸。一電子計數器20被容納在內加壓容器1之該噴管4對面的末端1
