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US 2017/0000953 A1Published application
A Housing for a Medical Injection Device
AssigneeNovo Nordisk A/S
InventorsKen Hansen, Lee Higson, Imran Ghulam, Jesper Bach Noergaard, Claus Urup Gjoedesen, Asger Meng Larsen
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Abstract
The invention relates to a medical injection device having polymeric housing. The housing comprises a moulded outer housing element and a moulded ring-shaped unitary element. The ring-shaped unitary element carries a pointer and a thread segment in predetermined and correlated positions. The pointer points to indicia on a scale drum and the thread segments guides the scale drum. The outer housing element is moulded over the unitary element to form one single component.
Claims9
An injection device for injecting set doses of a liquid drug, comprising:
- a polymeric housing rotatable guiding a scale drum during dose setting and which scale drum having an external helical groove carries a plurality of indicia viewable through a window provided in the housing, and
- a pointer pointing to an indicia thereby indicating the size of the set dose,
- and which polymeric housing comprises:
- a moulded outer housing element, and
- a moulded ring-shaped unitary element carrying the pointer for indicating the size of a set dose and a thread segment for guiding the scale drum,
- wherein the ring-shaped unitary element comprises an inner surface from which the thread segment protrudes to engage the helical groove of the scale drum and an outer surface from which the pointer protrudes, and wherein,
- the moulded outer housing element is moulded over the ring-shaped unitary element leaving at least a part of the protruding pointer visible.
4 more elements
Dependencies are inferred from the claim text.