A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/175 (2006.01) G01F 11/04 (2006.01)
Patent
CA 2539514
Device for metered administration of an injectable product, said device comprising: a) a housing (1, 2) which forms a product reservoir or a receiving seat for a product reservoir (12), b) a translation member (10) which, in order to deliver the product, executes a translation movement in a translation direction (V), c) a rotation member (20) which, for the delivery, executes a rotation movement about a rotation axis (T) and is coupled to the translation member (10) in such a way that it supports the translation member (10) counter to the translation direction, and one of the movements of rotation movement and translation movement produces the other one, d) a rotary bearing which comprises a bearing body (30; 1) formed by or axially supported by the housing (1, 2), which bearing body (30; 1) bears the rotation member (20) rotatably about the rotation axis (T), and which rotary bearing has a first support surface (31), a second support surface (32), a third support surface (23) and a fourth support surface (24) in order to secure the rotation member (20) axially on the bearing body (30; 1), e) the first support surface (31) and the second support surface (32) being connected axially rigidly to the bearing body (30; 1) and either facing away from one another axially or facing towards one another axially, and the third support surface (23) facing axially towards the first support surface (31) and the fourth support surface (24) facing axially towards the second support surface (32) and being axially rigidly connected to the rotation member (20), f) and a device for reducing play (35; 40, 50) with which at least two of the support surfaces (31, 32, 23, 24) facing axially towards one another are clamped axially to one another with a pressing force, thereby eliminating or reducing an axial play of the rotary bearing.
Daniel Peter
Geiser-Gafner Simone
Disetronic Licensing Ag
Gowling Lafleur Henderson Llp
LandOfFree
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