US 10,478,564 B2Granted

Injection device

AssigneeSanofi

InventorAnthony Paul Morris

Life of this patent

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Abstract

A handheld injection device includes a housing containing a cartridge, a dose setting means being operable in a first direction to set a desired dose to be dispensed, a piston rod being adapted to cooperate with a piston so as to cause a set dose to be injected from the cartridge, and a first clicker component, which is largely rotationally constrained to the housing, and a second clicker component, which is rotatable relative to the housing during dose dispensing. The clicker components are adapted to contact each other only at the end of dispensing of a set dose to thereby provide an audible and/or tactile first feedback to a user. The first clicker component is displaceable relative to the housing between a proximal dose setting position and a distal dose dispensing position.

Claims20

Dependent claims

An injection device comprising

a housing containing a cartridge;
a dose setting mechanism being operable in a first direction to set a dose during dose setting;
a piston rod being adapted to cooperate with a piston to eject the dose from the cartridge during dose dispensing;
a first clicker component rotationally fixed to the housing, the first clicker component being displaceable relative to the housing between a dose setting position and a dose dispensing position, the dose setting position being proximal to the dose dispensing position, and the first clicker component being stationary in the dose dispensing position during the dose dispensing;
and
a second clicker component rotatable relative to the housing during the dose dispensing,
wherein the first clicker component and the second clicker component are adapted to contact each other only near an end of the dose dispensing to provide an audible and/or tactile feedback to a user, the audible and/or tactile feedback being provided only if the injection device is in a dose dispensing mode in which the first clicker component is in the dose dispensing position, and
wherein the first clicker component and the second clicker component are configured not to engage one another when the injection device is in a dose setting mode to prevent the audible and/or tactile feedback from being generated.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/782,666Filed 8 Apr 2014
Priority: EP 1316306610 Apr 2013
Published: US 2016/0067411 A110 Mar 2016
Granted: 19 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

A61M 5/3155
Mechanically operated dose setting member: by rotational movement of dose setting member, e.g. during setting or filling of a syringe
A61M 5/20
Syringes: automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/31553
By rotational movement of dose setting member, e.g. during setting or filling of a syringe: without axial movement of dose setting member
A61M 5/3157
Means improving security or handling thereof: means providing feedback signals when administration is completed

Family

US 2016/0067411 A1Pre-grant publication · published 10 Mar 2016
US 10,478,564 B2This patent

From the US filing history. Foreign family members aren’t listed.

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