The present invention relates to a medicament delivery device comprising a housing (10) having opposite distal and proximal ends； a medicament container holder (15) with a medicament container (14), disposed within the housing, wherein the container has a front opening with or for a delivery member for delivering the medicament therethrough and at least a movable stopper (16)； a drive unit comprising a power source (20) and a plunger rod (24), wherein said drive unit is arranged to be movable between a non-delivery state in which said power source is in a cocked state and a delivery state in which said power source acts on said plunger rod which in its turn acts on said stopper (16) for delivering a dose of medicament from said medicament container (14)； retaining means operably connected to said drive unit, and capable of holding said drive unit in its non-delivery state； and activation means (36) operably connected to said retaining means, and capable of releasing said drive unit from its non-delivery state； wherein the device further comprises a delivery indication mechanism (56) comprising a flexible band (58) arranged with different indications (60), guide means (62, 67) arranged on the inner surface of the housing for storing and guiding said band, and an opening (64) in said housing through which said indications are visible； wherein said band comprises a first end connected to said drive unit such that when said drive unit is released from its non-delivery state, said band moves through said guide means.本發明關於一藥物輸送裝置，係包括一外殼(10)有相對的末端和近端；一藥物容器支架(15)和一藥物容器(14)，位於外殼內，在此容器有一前端開口有輸送構件以經此輸送藥物，和至少一可移動瓶塞(16)；一驅動主體包括一動力源(20)和一柱塞桿(24)，在此該驅動主體可移動於一非輸送狀態(該動力源在擊發狀態)和輸送狀態(該動力源作用於該柱塞桿上，接著作用於該瓶塞(16)上以從該藥物容器(14)輸送一劑藥物)之間；固定裝置可操作地連接於該驅動主體，且能夠支撐該驅動主體於非輸送狀態；和啟動裝置(36)可操作地連接於該固定裝置，且能夠從非輸送狀態鬆開該驅動主體；在此裝置又包括一輸送指示機制(56)包括一彈性傳動帶(58)有不同指示(60)，導引裝置(62、67)位於外殼內面上以容納和引導該傳動帶，和一開口(64)位於該外殼內，該指示可經開口被看見；在此該傳動帶包括一第一端連接於該驅動主體以便當該驅動主體被從非輸送狀態鬆開時，該傳動帶移動穿過該導引裝置。
