US 11,857,769 B2
Drive assembly and spacer for drug delivery system
Oliver Charles Gazeley, Leamington Spa (GB); David Aubrey Plumptre, Droitwich (GB); Malcolm Stanley Boyd, Wellesbourne (GB); Gareth James Lewis, High Wycombe (GB); and James Alexander Senior, Warwick (GB)
Assigned to Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed by Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed on Aug. 4, 2020, as Appl. No. 16/984,906.
Application 16/984,906 is a continuation of application No. 15/616,250, filed on Jun. 7, 2017, granted, now 10,792,432.
Claims priority of provisional application 62/347,948, filed on Jun. 9, 2016.
Prior Publication US 2020/0360612 A1, Nov. 19, 2020
Int. Cl. A61M 5/31 (2006.01); A61M 5/315 (2006.01); A61M 5/145 (2006.01); A61M 5/20 (2006.01); A61M 5/24 (2006.01)
CPC A61M 5/315 (2013.01) [A61M 5/1454 (2013.01); A61M 5/2033 (2013.01); A61M 5/24 (2013.01); A61M 5/31511 (2013.01); A61M 2207/00 (2013.01)] 16 Claims
OG exemplary drawing
 
10. A drug delivery system for injecting a medicament, the system comprising:
a container configured to receive a medicament, the container comprising a stopper configured to move within the container and a closure;
a drive assembly comprising:
a plunger member configured to move the stopper within the container, the plunger member having a first position and a second position axially spaced from the first position, the plunger member defining a plurality of coded projections;
a biasing member configured to move the plunger member from the first position to the second position; and
a plunger actuation member moveable relative to the plunger member, the plunger actuation member having a first position where the plunger member is axially fixed relative to the plunger actuation member and a second position where the plunger member is axially moveable relative to the plunger actuation member;
a needle actuator assembly comprising a needle configured to be placed in fluid communication with the container, the needle moveable from a first position and a second position spaced from the first position, a portion of the needle actuator assembly is configured to engage the plunger actuation member to move the plunger actuation member from the first position to the second position;
a restriction member aligned with one of the plurality of coded projections and configured to engage one of the plurality of coded projections to restrict movement of the needle actuator assembly; and
a spacer assembly engaged with the stopper of the container and configured to be engaged with the plunger member.