US 12,109,397 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 Nov. 10, 2017, as Appl. No. 15/809,398.
Application 15/809,398 is a continuation of application No. 15/065,670, filed on Mar. 9, 2016, granted, now 10,137,248.
Application 15/065,670 is a continuation of application No. 14/365,635, granted, now 9,867,940, 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 2018/0064875 A1, Mar. 8, 2018
Int. Cl. A61M 5/20 (2006.01); A61M 5/24 (2006.01); A61M 5/31 (2006.01); A61M 5/32 (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 2005/2407 (2013.01); A61M 2005/244 (2013.01); A61M 2207/00 (2013.01); A61M 2209/00 (2013.01); Y10T 29/49826 (2015.01)] 21 Claims
OG exemplary drawing
 
1. A method comprising:
axially inserting a syringe into a syringe carrier via a distal open end of the syringe carrier,
the syringe comprising a barrel, a neck extending proximally from the barrel, a needle extending proximally from the neck, and a rigid needle shield covering the needle, and
the syringe carrier comprising an elongate body having a slot extending distally from a proximal end of the elongate body to form a c-shaped proximal end region and a plurality of projections extending radially inward from the c-shaped proximal end region;
axially advancing the syringe within the syringe carrier such that the rigid needle shield slides along the plurality of projections of the c-shaped proximal end region of the syringe carrier, causing the c-shaped proximal end region of the syringe carrier to flex radially outward; and
further axially advancing the syringe within the syringe carrier until a distal end of the rigid needle shield is proximal to the plurality of projections, allowing the c-shaped proximal end region of the syringe carrier to rebound radially inward such that the plurality of projections are disposed in a gap formed between the rigid needle shield and the barrel of the syringe.