US 12,329,934 B2
Devices for injecting medicaments and methods of use
Michael John Holroyd, Cambridge (GB); Robin Craig Cocker, Nottingham (GB); James Terrence Collins, Peterborough (GB); Paul Christopher Edward Mutti, Spilsby (GB); Daniel Colin Jackson, Royston (GB); and Michael Edgar Newton, Diss (GB)
Assigned to McDermott Laboratories Limited, Dublin (IE)
Filed by McDermott Laboratories Limited, Dublin (IE)
Filed on Feb. 28, 2024, as Appl. No. 18/590,332.
Application 18/590,332 is a continuation of application No. 16/980,253, granted, now 12,023,468, previously published as PCT/IB2019/000243, filed on Mar. 12, 2019.
Claims priority of provisional application 62/642,281, filed on Mar. 13, 2018.
Prior Publication US 2024/0197992 A1, Jun. 20, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 5/20 (2006.01); A61M 5/315 (2006.01); A61M 5/32 (2006.01); A61M 5/24 (2006.01)
CPC A61M 5/20 (2013.01) [A61M 5/2033 (2013.01); A61M 5/31591 (2013.01); A61M 5/3202 (2013.01); A61M 5/3204 (2013.01); A61M 5/326 (2013.01); A61M 2005/2013 (2013.01); A61M 2005/2403 (2013.01); A61M 2005/2488 (2013.01); A61M 2005/3267 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A device for dispensing a medicament, the device comprising:
a housing having a proximal end, the housing having a container disposed within the housing, the container configured to hold a medicament, the container having a needle at a proximal end, and a stopper disposed within the container;
a plunger having a distal end and a proximal end, the proximal end of the plunger configured to engage the stopper, the distal end of the plunger configured to engage a first resilient member and move the stopper within the container to dispense the medicament from the container and out of the needle;
a carriage having at least a portion of the container disposed therein, the carriage rotatable relative to the housing;
a collar having a distal end and a proximal end, the distal end of the collar configured to engage the carriage and cause rotation of the carriage, the proximal end of the collar configured to engage a second resilient member;
a skin sensor having a distal end and a proximal end, the distal end of the skin sensor configured to engage the second resilient member, and the proximal end of the skin sensor configured to contact skin; and
a cap configured to engage the proximal end of the housing and the skin sensor, the cap having a locking surface configured to lock with a locking surface of the skin sensor to reduce movement of the skin sensor, wherein when the cap is removed from the housing and an injection force is applied to the skin sensor, the second resilient member is compressed and engages the collar and causes the collar to rotate the carriage, on rotation of the carriage, the first resilient member engages the plunger to inject the medicament from the container and out of the needle.