Injection button
AssigneeNovo Nordisk A/S
InventorsTorben Stroem Hansen, Jakob Oest Wielandt, Lars Moerch Groth
Life of this patent
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Abstract
A push button connection for an injection device comprising a push button (10) and a driving part (20). The two parts of the push button connection are mounted to each other and is relatively rotatable to each other. In order to minimize the friction occurring between the push button and the driving part when relatively rotated forces are transmitted via a pivot bearing (18, 22). In order also to minimize the effect of forces appearing dislocated from the centre line a number of radial bearings (13, 23; 14, 25) having a little friction diameter is provided.
Claims8
A push button connection for an injection device comprising:
- a push button (10) mountable on a driving part (20) being rotatable relatively to the push button (10) and which push button (10) further comprises a bore (12) with a bottom surface (17) and which bore (12) surrounds a protrusion (21) on the driving part (20) which protrusion (21) has a top surface (22) and wherein a pivot bearing (18, 22) is formed between the bottom surface (17) and the top surface (22).
A push button (10) for an injection device having a centrally located bore (12) for obtaining a protrusion (21) and which bore (12) is formed with a pivot (18) centrally located in a bottom surface (17) of the bore (12).
Dependencies are inferred from the claim text.