US 12,263,328 B2
Medicament delivery device
Oscar Alexandersson, Hanine (SE)
Assigned to SHL Medical AG, Zug (CH)
Filed by SHL MEDICAL AG, Zug (CH)
Filed on Jul. 29, 2022, as Appl. No. 17/876,862.
Application 17/876,862 is a continuation of application No. 17/114,252, filed on Dec. 7, 2020, granted, now 11,648,348.
Application 17/114,252 is a continuation of application No. 16/774,347, filed on Jan. 28, 2020, granted, now 11,376,363, issued on Jul. 5, 2022.
Application 16/774,347 is a continuation of application No. 15/474,872, filed on Mar. 30, 2017, granted, now 10,617,824, issued on Apr. 14, 2020.
Application 15/474,872 is a continuation of application No. 15/286,880, filed on Oct. 6, 2016, granted, now 9,764,089, issued on Sep. 19, 2017.
Application 15/286,880 is a continuation of application No. 14/993,736, filed on Jan. 12, 2016, granted, now 9,623,182, issued on Apr. 18, 2017.
Application 14/993,736 is a continuation of application No. 14/747,869, filed on Jun. 23, 2015, granted, now 9,867,942, issued on Jan. 16, 2018.
Application 14/747,869 is a continuation of application No. 13/858,692, filed on Apr. 8, 2013, granted, now 9,302,047, issued on Apr. 5, 2016.
Application 13/858,692 is a continuation of application No. 13/500,913, granted, now 8,414,533, issued on Apr. 9, 2013, previously published as PCT/SE2010/051004, filed on Sep. 20, 2010.
Claims priority of provisional application 61/249,675, filed on Oct. 8, 2009.
Claims priority of application No. 0950807-8 (SE), filed on Oct. 30, 2009.
Prior Publication US 2022/0362470 A1, Nov. 17, 2022
Int. Cl. A61M 5/20 (2006.01); A61M 5/315 (2006.01); A61M 5/32 (2006.01)
CPC A61M 5/20 (2013.01) [A61M 5/2033 (2013.01); A61M 5/3157 (2013.01); A61M 5/3202 (2013.01); A61M 5/326 (2013.01); A61M 2005/2013 (2013.01); A61M 2005/2026 (2013.01); A61M 2005/206 (2013.01); A61M 2205/581 (2013.01); A61M 2205/582 (2013.01); A61M 2205/583 (2013.01); A61M 2205/584 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An injection device, comprising:
a tubular housing;
a syringe carrier arranged within the tubular housing, the syringe carrier configured to accept a syringe such that it is rotationally and axial fixed relative to the syringe carrier, where the syringe comprises a stopper, a medicament, and a needle;
a needle shield sleeve slidably arranged with respect to the tubular housing and the syringe carrier, where a proximal portion of the needle shield sleeve protrudes a distance outside a front end of the tubular housing to cover the needle when in a first position and when in a second position;
a plunger rod having a proximal end that engages and slides the stopper within the syringe to dispense the medicament from the needle;
a first compression spring having a proximal end that operatively engages the proximal end of the plunger rod to drive the plunger rod in a proximal direction relative to the syringe carrier;
a first activator member operatively engaged with a distal end of the needle shield sleeve such that axial distal movement of the needle shield causes axial distal movement of the first activator; and
a second activator member releasably engaged with an outside portion of the plunger rod,
wherein the first activator is tubular shaped and slidably positioned relative to and coaxially with the second activator member, and
wherein when the needle shield sleeve moves distally from the first position to a third position, the first activator causes the plunger rod to be released from the second activator.