US 11,998,725 B2
Auto injector with automatic rigid needle shield remover
Bjarne Sørensen, Aalborg (DK); Esben Weldingh Johansen, Struer (DK); Jan Olesen, Holstebro (DK); Jørgen Funder Rasmussen, Holstebro (DK); Emil Wegger Jensen, Viby J (DK); Søren Koch Bechmann, Holstebro (DK); and Lucile Daul, Struer (DK)
Assigned to Phillips-Medisize A/S, Struer (DK)
Appl. No. 17/282,005
Filed by Phillips-Medisize A/S, Struer (DK)
PCT Filed Oct. 7, 2019, PCT No. PCT/EP2019/077061
§ 371(c)(1), (2) Date Apr. 1, 2021,
PCT Pub. No. WO2020/070326, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. PA201870662 (DK), filed on Oct. 5, 2018; application No. PA201870663 (DK), filed on Oct. 5, 2018; and application No. 18198936 (EP), filed on Oct. 5, 2018.
Prior Publication US 2021/0330893 A1, Oct. 28, 2021
Int. Cl. A61M 5/32 (2006.01); A61M 5/20 (2006.01); A61M 5/24 (2006.01); A61M 5/28 (2006.01); A61M 5/315 (2006.01)
CPC A61M 5/3204 (2013.01) [A61M 5/20 (2013.01); A61M 5/2053 (2013.01); A61M 5/24 (2013.01); A61M 5/28 (2013.01); A61M 5/31505 (2013.01); A61M 5/31576 (2013.01); A61M 5/31578 (2013.01); A61M 5/3158 (2013.01); A61M 5/3202 (2013.01); A61M 5/3216 (2013.01); A61M 2005/2013 (2013.01); A61M 5/2033 (2013.01); A61M 2005/206 (2013.01); A61M 2005/2073 (2013.01); A61M 2005/208 (2013.01); A61M 2005/2411 (2013.01); A61M 5/2422 (2013.01); A61M 2005/2433 (2013.01); A61M 2005/2492 (2013.01); A61M 2005/31588 (2013.01); A61M 2205/12 (2013.01); A61M 2205/13 (2013.01); A61M 2205/14 (2013.01); A61M 2205/3327 (2013.01); A61M 2205/42 (2013.01)] 43 Claims
OG exemplary drawing
 
1. An auto injector for delivery of a medicament within a syringe, the syringe including a syringe compartment extending from a proximal end to a distal end, the syringe compartment containing the medicament, a hollow needle in fluid connection with the proximal end of the syringe compartment, a rigid needle shield connected to the proximal end of the syringe compartment and covering the hollow needle, a stopper movable from a distal position to a proximal position inside the syringe compartment by a plunger rod moving the stopper proximally, the auto injector extending from a proximal end to a distal end, the auto injector comprising:
a housing;
a syringe holder configured to receive the syringe;
a first drive module adapted to move the syringe holder relatively to the housing; and
a rigid needle shield remover comprising a first part adapted for being positioned between the rigid needle shield of the syringe and the proximal end of the syringe compartment of the syringe, wherein when the first part is positioned between the rigid needle shield and the proximal end of the syringe compartment, the rigid needle shield can be separated from the proximal end of the syringe compartment upon relative movement between the syringe holder and the rigid needle shield remover,
wherein the syringe holder, the first drive module, and the rigid needle shield remover are comprised inside the housing, and
wherein the rigid needle shield remover comprises at least two arms, each arm extending from a distal end to a proximal end, the at least two arms each pivotally attached to the auto injector.