Drive mechanisms suitable for use in drug delivery devices

Drive mechanisms suitable for use in drug delivery devices

A drive mechanism for use in a drug delivery device comprising an epicyclic gearbox. This drive mechanism includes a housing having a helical thread; a piston rod having a non-circular cross section and an external helical thread; a dose dial sleeve, which is threadedly engaged with the housing and...

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Hauptverfasser: Veasey, Robert Frederick, Jones, Christopher John
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Sprache:eng
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creator Veasey, Robert Frederick
Jones, Christopher John
description A drive mechanism for use in a drug delivery device comprising an epicyclic gearbox. This drive mechanism includes a housing having a helical thread; a piston rod having a non-circular cross section and an external helical thread; a dose dial sleeve, which is threadedly engaged with the housing and being rotatable with respect to the housing; and a drive sleeve, located between the housing and the piston rod, which is threadedly engaged with the piston rod.
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title Drive mechanisms suitable for use in drug delivery devices
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