US 12,059,555 B2
Injection device for drug delivery and packaging for the injection device
Wael Mismar, Redondo Beach, CA (US); Jessica Hai Liu, Agoura Hills, CA (US); Dylan Bourelle, Thousand Oaks, CA (US); Chia-Jung Wu, Redondo Beach, CA (US); Shaun Devitt, Wayne, PA (US); Kenneth G. Schalhoub, Denver, CO (US); Tej Desai, Thousand Oaks, CA (US); Mads Schjoth Due, Redondo Beach, CA (US); Anthony Bitong, Calabasas, CA (US); Arin Keshishian, Sunland, CA (US); Chelsea Balli-Cruz, Winnetka, CA (US); Pierre Burquel, South Weymouth, CA (US); Ryan Oba, Santa Paula, CA (US); and Malak Guirguis, Los Angeles, CA (US)
Assigned to AMGEN INC., Thousand Oaks, CA (US)
Filed by AMGEN INC., Thousand Oaks, CA (US)
Filed on Sep. 2, 2020, as Appl. No. 17/009,868.
Claims priority of provisional application 63/018,141, filed on Apr. 30, 2020.
Claims priority of provisional application 62/895,456, filed on Sep. 3, 2019.
Prior Publication US 2021/0060258 A1, Mar. 4, 2021
Int. Cl. A61M 5/31 (2006.01); A61M 5/00 (2006.01); A61K 38/17 (2006.01); A61K 39/395 (2006.01); A61M 5/315 (2006.01)
CPC A61M 5/3137 (2013.01) [A61M 5/002 (2013.01); A61K 38/179 (2013.01); A61K 39/395 (2013.01); A61M 5/001 (2013.01); A61M 2005/3139 (2013.01); A61M 5/31505 (2013.01)] 27 Claims
OG exemplary drawing
 
1. An injection device comprising:
a syringe having a barrel and a flange; and
a backstop configured to be coupled with the syringe adjacent to the flange during use of the syringe for drug delivery, the backstop having an inner surface including a C-shaped portion extending around at least a portion of a circumference of the syringe for an entire length of the C-shaped portion, wherein the C-shaped portion of the inner surface is interrupted by an opening that permits the backstop to receive the flange and/or the barrel, wherein the C-shaped portion of the inner surface further includes at least one protrusion extending away from the C-shaped portion of the inner surface, and wherein, upon coupling the syringe with the backstop, the at least one protrusion is configured to engage the flange and/or the barrel to create a space between the flange and/or the barrel and the C-shaped portion of the inner surface and to permit or promote airflow through the space between the C-shaped portion of the inner surface and the flange and/or the barrel, the backstop further having a cavity for receiving at least a portion of the flange, the cavity defined by opposing surfaces to limit axial movement of the backstop.
 
19. A packaging assembly comprising:
a syringe having a barrel and a flange;
a backstop configured to be coupled with the syringe adjacent to the flange during use of the syringe for drug delivery; and
a packaging configured to receive an entire length of the syringe coupled with the backstop while physically supporting at least a portion of the syringe, wherein the packaging includes a cavity surface including a C-shaped portion and at least one protrusion disposed on the C-shaped portion of the cavity surface and extending away from the C-shaped portion of the cavity surface, and wherein the at least one protrusion is configured to engage the barrel of the syringe upon the syringe being disposed within the packaging to create a space between the syringe and at least a bottom portion of the C-shaped portion of the cavity surface and to permit or promote airflow through the space between at least the bottom portion of the C-shaped portion of the cavity surface and the syringe.
 
22. A packaging assembly comprising:
a syringe having a barrel, a plunger rod at least partially received within the barrel, and a flange;
a backstop configured to be coupled with the syringe adjacent to the flange during use of the syringe for drug delivery; and
a packaging configured to receive an entire length of the syringe coupled with the backstop while physically supporting at least a portion of the syringe, wherein the packaging includes a cavity surface defining at least one raised wall section configured to engage the plunger rod of the syringe and resist and/or limit movement of the plunger rod, the cavity surface of the packaging further includes a C-shaped portion and at least one protrusion disposed on the C-shaped portion of the cavity surface and extending away from the C-shaped portion of the cavity surface, and wherein the at least one protrusion is configured to engage the barrel of the syringe upon the syringe being disposed within the packaging to create a space between the syringe and at least a bottom portion of the C-shaped portion of the cavity surface and to permit or promote airflow through the space between at least the bottom portion of the C-shaped portion of the cavity surface and the syringe.
 
23. An injection device comprising:
a syringe having a barrel and a flange; and
a backstop configured to be coupled with the syringe adjacent to the flange during use of the syringe for drug delivery such that axial movement of the backstop is limited by the backstop, the backstop having an inner surface including a C-shaped portion extending around at least a portion of a circumference of the syringe for an entire length of the C-shaped portion, wherein the C-shaped portion of the inner surface is interrupted by an opening that permits the backstop to receive the flange and/or the barrel, wherein the C-shaped portion of the inner surface further includes at least one protrusion extending away from the C-shaped portion of the inner surface, and wherein, upon coupling the syringe with the backstop, the at least one protrusion is configured to engage the flange and/or the barrel to create a space between the flange and/or the barrel and the C-shaped portion of the inner surface and to permit or promote airflow through the space between the C-shaped portion of the inner surface and the flange and/or the barrel such that only the at least one protrusion contacts the flange and/or the barrel of the syringe.