Injection device with dose metering mechanism with multiple anti-rotation locking system
First Claim
1. A drive and dose metering module for an injection device, comprising:
- a) a dose metering element moveable relative to a drive element into one of several dose setting positions to set the product dose,b) wherein one of the drive element and dose metering element forms several dose setting stops at different axial heights and rotation stops assigned to the dose setting stops,c) and the other of the drive element and dose metering element forms at least one selection element,d) and wherein the drive element can be moved in translation relative to the dose metering element as far as a triggering position in which the at least one selection element is in abutment with one of the dose setting stops, ande) in the triggering position, the at least one selection element locks, by the rotation stops, the rotation of the dose metering element in both directions of rotation.
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Accused Products
Abstract
A drive and dosing module for an injection device, and an injection device including the module, wherein the module includes a dosing member which can be displaced into one of several dosing positions in relation to a drive member to set a product dose, wherein one of the dosing or drive members forms several dosing stops at axially different heights and rotational stops that are associated with the dosing stops and the other member forms at least one selection element, and wherein the drive member can be moved in relation to the dosing member until it reaches a trigger position in which the at least one selection element attains one of the dosing stops and, in said trigger position, the selection element and the rotational stops combine to lock the rotation of the dosing member in both directions.
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Citations
14 Claims
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1. A drive and dose metering module for an injection device, comprising:
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a) a dose metering element moveable relative to a drive element into one of several dose setting positions to set the product dose, b) wherein one of the drive element and dose metering element forms several dose setting stops at different axial heights and rotation stops assigned to the dose setting stops, c) and the other of the drive element and dose metering element forms at least one selection element, d) and wherein the drive element can be moved in translation relative to the dose metering element as far as a triggering position in which the at least one selection element is in abutment with one of the dose setting stops, and e) in the triggering position, the at least one selection element locks, by the rotation stops, the rotation of the dose metering element in both directions of rotation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An injection device comprising a drive and dosing module, wherein the module comprises a dosing member which can be moved into one of several dosing positions in relation to a drive member to set a dose, wherein one of the dosing or drive members forms several dosing stops at axially different heights and rotational stops that are associated with the dosing stops and the other member forms at least one selection element, and wherein the drive member can be moved in relation to the dosing member until it reaches a trigger position in which the at least one selection element attains one of the dosing stops and, in said trigger position, the selection element and the rotational stops combine to lock the rotation of the dosing member in both directions.
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14. An injection device for injecting a settable product dose, comprising a drive and dose metering module comprising a dose metering element moveable relative to a drive element into one of several dose setting positions to set the product dose, wherein one of the drive element and dose metering element forms several dose setting stops at different axial heights and rotation stops assigned to the dose setting stops and the other of the drive element and dose metering element forms at least one selection element, and wherein the drive element can be moved in translation relative to the dose metering element as far as a triggering position in which the at least one selection element is in abutment with one of the dose setting stops, and in the triggering position, the at least one selection element locks, by the rotation stops, the rotation of the dose metering element in both directions of rotation.
Specification