학술논문
Dose Indicating Assembly of a Pharmaceutical Injection Device
Document Type
Patent
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Abstract
A dose indicating assembly in a pharmaceutical injection device (20). The dose indicating assembly includes an external housing barrel (31) extending in an axial direction, and a dial at least partially disposed within the housing barrel. The dial (33) is screwably movable in the axial direction relative to the barrel during dose setting. The dial includes an outer radial periphery with a plurality of parallel arrays (38, 39, 40) of dose indicia provided thereon, each of the plurality of arrays of dose indicia provided in a helical pattern on the periphery. The dose indicating assembly also includes means (50) for viewing the dose indicia of a selectively chosen one of the plurality of arrays.