Injection device
First Claim
1. An injection device comprising:
- a housing;
a dose indicator positioned within and axially constrained to the housing and rotatable with respect to the housing during dose setting and during dose dispensing;
a gauge element at least partly interposed between the housing and the dose indicator, wherein the gauge element is axially guided within the housing and in threaded engagement with the dose indicator such that rotation of the dose indicator causes an axial displacement of the gauge element; and
a contrast element comprising a first marking, wherein at least a region of the gauge element comprises a second marking, wherein at least one of the first marking or the second marking is visible through a first window or a first aperture in the housing depending on the axial position of the gauge element within the housing, wherein the housing has a second aperture or second window and the gauge element has a third aperture or third window positioned with respect to the second aperture or second window of the housing such that at least a part of the dose indicator is visible through the second and third apertures or windows.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention refers to a handheld injection device comprising a housing (10; 410), a dose indicator (90; 480) positioned within and axially constrained to the housing (10; 410) and rotatable with respect to the housing (10; 410) during dose setting and during dose dispensing, a gauge element (80; 490), which is at least partly interposed between the housing (10; 410) and the dose indicator (90; 480), wherein the gauge element (80; 490) is axially guided within the housing (10; 410) and in threaded engagement with the dose indicator (90; 480) such that rotation of the dose indicator (90; 480) causes an axial displacement of the gauge element (80; 490). A contrast element having a first marking is provided and at least a region of the gauge element (80; 490) is provided with a second marking, with the first marking and/or the second marking being visible through a first window (12a) or aperture in the housing (10; 410) depending on the axial position of the gauge element (80; 490) within the housing (10; 410).
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Citations
18 Claims
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1. An injection device comprising:
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a housing; a dose indicator positioned within and axially constrained to the housing and rotatable with respect to the housing during dose setting and during dose dispensing; a gauge element at least partly interposed between the housing and the dose indicator, wherein the gauge element is axially guided within the housing and in threaded engagement with the dose indicator such that rotation of the dose indicator causes an axial displacement of the gauge element; and a contrast element comprising a first marking, wherein at least a region of the gauge element comprises a second marking, wherein at least one of the first marking or the second marking is visible through a first window or a first aperture in the housing depending on the axial position of the gauge element within the housing, wherein the housing has a second aperture or second window and the gauge element has a third aperture or third window positioned with respect to the second aperture or second window of the housing such that at least a part of the dose indicator is visible through the second and third apertures or windows. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification