US 11,850,400 B2
Auto-injection device
Anders Holmqvist, Varmdo (SE); and Hsueh-Yi Chen, New Taipei (TW)
Assigned to SHL MEDICAL AG, Zug (CH)
Filed by SHL MEDICAL AG, Zug (CH)
Filed on May 18, 2021, as Appl. No. 17/323,377.
Application 17/323,377 is a continuation of application No. 17/220,634, filed on Apr. 1, 2021.
Application 17/220,634 is a continuation of application No. 16/871,897, filed on May 11, 2020.
Application 16/871,897 is a continuation of application No. 16/045,820, filed on Jul. 26, 2018, granted, now 11,027,067.
Application 16/045,820 is a continuation of application No. 15/809,398, filed on Nov. 10, 2017.
Application 15/809,398 is a continuation of application No. 15/065,670, filed on Mar. 9, 2016, granted, now 10,137,248, issued on Nov. 27, 2018.
Application 15/065,670 is a continuation of application No. 14/365,635, granted, now 9,867,940, issued on Jan. 16, 2018, previously published as PCT/SE2012/051365, filed on Dec. 10, 2012.
Claims priority of provisional application 61/570,921, filed on Dec. 15, 2011.
Claims priority of application No. 1151197-9 (SE), filed on Dec. 15, 2011.
Prior Publication US 2021/0268189 A1, Sep. 2, 2021
Int. Cl. A61M 5/20 (2006.01); A61M 5/32 (2006.01); A61M 5/24 (2006.01); A61M 5/31 (2006.01)
CPC A61M 5/20 (2013.01) [A61M 5/24 (2013.01); A61M 5/31 (2013.01); A61M 5/3202 (2013.01); A61M 5/2033 (2013.01); A61M 2005/206 (2013.01); A61M 2005/244 (2013.01); A61M 2005/2407 (2013.01); A61M 2207/00 (2013.01); A61M 2209/00 (2013.01); Y10T 29/49826 (2015.01)] 11 Claims
OG exemplary drawing
 
1. A subassembly for use in fabricating a medical delivery device, wherein the subassembly comprises:
a first axial configuration and a second axial configuration;
a housing having a length measured along a longitudinal axis and a support surface located on an inside surface of the housing;
a syringe holder comprising an outer surface and a distal supporting collar that extends outwardly from the outer surface, where the syringe holder is partially inserted into a distal end of the housing when the subassembly is in the first axial configuration and where the syringe holder has a length that is less than the length of the housing such that the syringe holder will be completely contained within the housing when the subassembly is in the second axial configuration; and
a syringe having a needle shield affixed to a proximal end of the syringe adjacent to a neck portion of the syringe, where the needle shield has an outer diameter;
wherein the syringe holder further comprises an open proximal end having a plurality of segments that project radially inward from an inner periphery of the open proximal end,
wherein the plurality of segments define a first diameter and a second diameter, where the first diameter is less than the second diameter,
wherein the first diameter temporarily changes to the second diameter when the subassembly is in the first axial configuration and the syringe is longitudinally inserted into the syringe holder so that the needle shield is pushed through the open proximal end causing the second diameter to change back to the first diameter such that the plurality of segments engage and support the neck of the syringe while the needle shield remains affixed to the syringe, and
wherein the syringe holder is movably arranged within and relative to the housing such that when the subassembly is in the second axial configuration the outer surface of the syringe holder will abut the support surface to prevent the plurality of segments from flexing radially outward.