US 11,712,516 B2
Fluid delivery device
David Frank Bolognia, Charlestown, MA (US); and Brian Hall, North Andover, MA (US)
Assigned to Analog Devices, Inc., Norwood, MA (US)
Filed by Analog Devices, Inc., Norwood, MA (US)
Filed on Apr. 17, 2020, as Appl. No. 16/851,798.
Prior Publication US 2021/0322681 A1, Oct. 21, 2021
Int. Cl. A61M 5/148 (2006.01); A61M 5/315 (2006.01); A61M 5/142 (2006.01); A61M 5/145 (2006.01)
CPC A61M 5/1483 (2013.01) [A61M 5/14244 (2013.01); A61M 5/14593 (2013.01); A61M 5/31586 (2013.01); A61M 2005/14204 (2013.01); A61M 2005/14513 (2013.01); A61M 2205/0272 (2013.01); A61M 2205/3334 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A substance delivery device comprising:
a lever comprising a drive arm rotatable about a pivot; and
an electroosmotic (EO) pump having a deformable chamber, the deformable chamber configured to rotate the drive arm about the pivot towards a container so as to deform the container to drive a fluid substance from the container;
wherein the EO pump is configured to apply an effort force to an effort region of the lever, thereby causing the effort region and a load region of the lever to move, the load region positioned to apply a load force to the container; and
wherein the drive arm comprises a load region and an effort region, the effort region is positioned between the load region and the pivot.