DRIVE ASSEMBLY FOR A DRUG DELIVERY DEVICE

DRIVE ASSEMBLY FOR A DRUG DELIVERY DEVICE

A drive assembly for a drug delivery device (100) is presented. The drive assembly comprises a housing (4) having a proximal end (18) and a distal end (19) and a main drive mechanism comprising a drive member (5), a piston rod (7) and a resilient member (13). The main drive mechanism being configure...

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Hauptverfasser: MILNE, STUART, OAKLEY, TOM
Format: Patent
Sprache:eng ; fre ; ger
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DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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creator MILNE, STUART
OAKLEY, TOM
description A drive assembly for a drug delivery device (100) is presented. The drive assembly comprises a housing (4) having a proximal end (18) and a distal end (19) and a main drive mechanism comprising a drive member (5), a piston rod (7) and a resilient member (13). The main drive mechanism being configured such that, in a setting mode of operation, the resilient member (13) is biased when a dose of a drug (35) is set and in a dispensing mode of operation, the set dose is dispensed, wherein the drive member (5) drives the piston rod (7). The drive assembly further comprises an auxiliary drive mechanism further comprising an auxiliary drive member (26) which is coupled to the drive member (5). In the dispensing mode of operation, the auxiliary drive mechanism can be actuated by a user via a movement of the auxiliary drive member (26) with respect to the housing (4), thereby mechanically assisting the dispensing action of the main drive mechanism.
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The drive assembly comprises a housing (4) having a proximal end (18) and a distal end (19) and a main drive mechanism comprising a drive member (5), a piston rod (7) and a resilient member (13). The main drive mechanism being configured such that, in a setting mode of operation, the resilient member (13) is biased when a dose of a drug (35) is set and in a dispensing mode of operation, the set dose is dispensed, wherein the drive member (5) drives the piston rod (7). The drive assembly further comprises an auxiliary drive mechanism further comprising an auxiliary drive member (26) which is coupled to the drive member (5). 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subjects DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
title DRIVE ASSEMBLY FOR A DRUG DELIVERY DEVICE
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