US 11,865,310 B2
Handheld drug delivery device
Andrew N. King, Malvern, PA (US); Ian B. Hanson, Wayne, PA (US); and Paul F. Bente, IV, Wayne, PA (US)
Assigned to UNL HOLDINGS LLC
Filed by UNL Holdings LLC, New York, NY (US)
Filed on May 11, 2020, as Appl. No. 16/872,230.
Application 16/872,230 is a continuation of application No. PCT/IB2017/001371, filed on Nov. 9, 2017.
Prior Publication US 2021/0146057 A1, May 20, 2021
Int. Cl. A61M 5/20 (2006.01); A61M 5/315 (2006.01); A61M 5/24 (2006.01)
CPC A61M 5/31535 (2013.01) [A61M 2005/206 (2013.01); A61M 2005/247 (2013.01); A61M 2205/13 (2013.01); A61M 2205/50 (2013.01); A61M 2205/581 (2013.01); A61M 2205/582 (2013.01); A61M 2205/583 (2013.01); A61M 2205/586 (2013.01); A61M 2205/587 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A drug delivery device comprising:
a housing having a proximal end and a distal end;
an activation mechanism disposed at the proximal end of the housing;
a drive mechanism disposed in the housing the drive mechanism including a biasing member;
a drug container disposed in the housing, the drug container defining a longitudinal drug container axis;
a fluid pathway connection disposed in the housing, the fluid pathway connection including a piercing member defining a longitudinal piercing member axis;
a needle insertion mechanism disposed in the distal end of the housing, the needle insertion mechanism including an insertion needle defining a longitudinal insertion needle axis and further including an insertion biasing member retained in a compressed state at the distal end of the housing,
wherein the longitudinal drug container axis, the longitudinal piercing member axis, and the longitudinal insertion needle axis are substantially coaxial; and
a plunger seal disposed in the drug container, wherein the biasing member of the drive mechanism is configured to apply a force on the plunger seal in response to actuation of the activation mechanism, the force directed toward a distal end of the drug container, and
wherein upon actuating the activation mechanism, the insertion biasing member decompresses, thereby driving and causing the insertion needle to extend in a distal direction toward the distal end of the housing.