Improvements in and relating to drive mechanisms suitable for use in drug delivery devices

The invention relates to a pen-type injector comprising a housing (2, 2', 2", 2"'); a piston rod (32, 32', 32") having a screw thread; an insert (14, 14', 14"') located in the housing (2, 2', 2", 2"') and through which the piston rod (...

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Bibliographic Details
Main Authors Langley, Christopher Nigel, Veasey, Robert Frederick, WIMPENNY, Steven
Format Patent
LanguageEnglish
Hungarian
Published 28.06.2016
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
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Summary:The invention relates to a pen-type injector comprising a housing (2, 2', 2", 2"'); a piston rod (32, 32', 32") having a screw thread; an insert (14, 14', 14"') located in the housing (2, 2', 2", 2"') and through which the piston rod (32, 32', 32") may rotate; a dose dial sleeve (50, 50', 50", 50"') rotatable with respect to the housing and the insert; and a drive sleeve (60, 60', 60") which is axially displaceable with respect to the housing. The maximum angular displacement of the dose dial sleeve with respect to the housing is determined by abutment of a radially directed lug (100) on the dose dial sleeve (50, 50', 50", 50"') with a catch means (102) on the insert (14, 14', 14"'). The invention relates to a method for assembling a pen-type injector, too.
Bibliography:Application Number: HUE08006911