US 12,257,422 B2
Device for administering a medicinal liquid by injection
Michael Schabbach, Frankfurt am Main (DE); and Anna Baccaro, Frankfurt am Main (DE)
Assigned to Sanofi, Paris (FR)
Appl. No. 16/973,976
Filed by Sanofi, Paris (FR)
PCT Filed Jun. 13, 2019, PCT No. PCT/EP2019/065507
§ 371(c)(1), (2) Date Dec. 10, 2020,
PCT Pub. No. WO2019/238825, PCT Pub. Date Dec. 19, 2019.
Claims priority of application No. 18305728 (EP), filed on Jun. 14, 2018.
Prior Publication US 2021/0244884 A1, Aug. 12, 2021
Int. Cl. A61M 5/24 (2006.01); A61M 5/315 (2006.01); A61M 5/32 (2006.01)
CPC A61M 5/2425 (2013.01) [A61M 5/2466 (2013.01); A61M 5/31591 (2013.01); A61M 5/3232 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for administering a medicinal liquid by injection, the device comprising:
a dose assembly comprising
a collapsible reservoir, wherein the collapsible reservoir is adapted to hold the medicinal liquid to be administered; and
an injection needle having a lumen, wherein at least a major part of the needle defines a longitudinal axis, wherein prior to injection the needle is located in an interior of the device and wherein a first end of the needle near the collapsible reservoir is directly or indirectly mounted to the reservoir so that prior to an actuation of the device by a user the lumen of the needle is in fluid communication with an interior chamber of the collapsible reservoir;
at least one actuator element onto which a user may apply a force to actuate the device, the force having a perpendicular force component along an axis perpendicular to the longitudinal axis; and
a housing comprising a septum, wherein prior to injection, the dose assembly is disposed in the housing such that the collapsible reservoir and the needle are located in an interior of the housing and the septum blocks the lumen of the needle at a second end of the needle distal to the collapsible reservoir;
wherein the at least one actuator element is configured and arranged to act on at least a portion of the dose assembly and the collapsible reservoir along the axis perpendicular to the longitudinal axis through a first movement and a second movement subsequent and continuous to the first movement without an intervening movement, along the axis perpendicular to the longitudinal axis, wherein the at least one actuator element and the dose assembly are configured:
i) such that the first movement of the at least one actuator element causes a displacement of the needle along the longitudinal axis and/or along an axis parallel to the longitudinal axis so that a portion of the needle moves from the interior of the housing to an exterior of the housing to allow for dispensation of the medicinal liquid, and
ii) such that the second movement of the at least one actuator element causes a collapsing of the collapsible reservoir to a collapsed state, thereby expelling the medicinal liquid contained in the reservoir through the lumen of the needle; and
wherein the septum is made of an elastomeric or rubber material having a Shore A hardness of 30-65.