Patent ID: 11865310
Assignee: UNL HOLDINGS LLC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 11:
12. A drug delivery device comprising:
an activation mechanism;
a drive mechanism including a biasing member;
a drug container defining a longitudinal axis;
a pierceable seal disposed at a distal end of the drug container;
a plunger seal disposed in the drug container;
a fluid pathway connection including a piercing member;
a needle insertion mechanism including an insertion needle and an insertion biasing member;
a housing having a proximal end adjacent the activation mechanism and a distal end adjacent the needle insertion mechanism, wherein the drive mechanism, the fluid pathway connection, and the needle insertion mechanism are disposed within the housing; and
wherein the biasing member is configured to apply a force on the plunger seal in response to actuation of the activation mechanism, the force directed toward the distal end of the drug container, further wherein the force causes the drug container to translate in a distal direction and wherein the piercing member of the fluid pathway connection is configured to pierce the pierceable seal as a result of the translation of the drug container to open a fluid pathway from the drug container, through the piercing member and to the needle insertion mechanism,
wherein the needle insertion mechanism is disposed in the distal end of the housing, the insertion biasing member being retained in a compressed state at the distal end of the housing, wherein upon actuating the activation mechanism the insertion biasing member decompresses, thereby driving and causing the insertion needle to extend in the distal direction toward the distal end of the housing.