US 9,808,582 B2
Two-stage reconstituting injector
Thomas E. Kramer, Coon Rapids, MN (US); and Peter L. Sadowski, Woodbury, MN (US)
Assigned to Antares Pharma, Inc., Ewing, NJ (US)
Filed by Antares Pharma, Inc., Minneapolis, MN (US)
Filed on Apr. 4, 2014, as Appl. No. 14/244,916.
Application 14/244,916 is a continuation of application No. 13/584,317, filed on Aug. 13, 2012, granted, now 8,696,618.
Application 13/584,317 is a continuation of application No. 12/299,274, granted, now 8,251,947, issued on Aug. 28, 2012, previously published as PCT/US2007/067986, filed on May 2, 2007.
Claims priority of provisional application 60/796,939, filed on May 3, 2006.
Prior Publication US 2014/0221916 A1, Aug. 7, 2014
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 37/00 (2006.01); A61M 5/315 (2006.01); A61M 5/24 (2006.01); A61M 5/32 (2006.01); A61M 5/19 (2006.01); A61M 5/30 (2006.01); A61M 5/20 (2006.01); A61M 5/31 (2006.01)
CPC A61M 5/31596 (2013.01) [A61M 5/19 (2013.01); A61M 5/2066 (2013.01); A61M 5/2466 (2013.01); A61M 5/30 (2013.01); A61M 5/3202 (2013.01); A61M 5/2033 (2013.01); A61M 5/3204 (2013.01); A61M 5/326 (2013.01); A61M 2005/2013 (2013.01); A61M 2005/2073 (2013.01); A61M 2005/2474 (2013.01); A61M 2005/3125 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An injector for injecting a medicament into a patient, comprising:
a container defining:
a first chamber containing a fluid, and
a second chamber;
an injection conduit configured for directing the fluid fired from the container into the patient;
a transfer mechanism operable by a user to transfer the fluid from the first chamber to the second chamber in a first stage of operation;
a firing mechanism operable by the user for firing the fluid from the second chamber through the injection conduit in a second stage of operation; and
an energy source in powering association with the transfer and firing mechanisms to drive the transfer mechanism and the firing mechanism in both the first stage of operation and the second stage of operation,
wherein the injection conduit has a position that is fluidly isolated from the second chamber, the injector further comprising a transfer control that is manually operable to operate the transfer mechanism in the first stage of operation and to fluidly communicate the injection conduit with the second chamber in the first stage of operation.