US 11,857,460 B2
Ocular delivery systems and methods
David Y. Badawi, Glenview, IL (US); Daniel O'Keeffe, San Francisco, CA (US); and Paul Badawi, Atherton, CA (US)
Assigned to SIGHT SCIENCES, INC., Menlo Park, CA (US)
Filed by Sight Sciences, Inc., Menlo Park, CA (US)
Filed on Nov. 18, 2022, as Appl. No. 17/990,589.
Application 17/990,589 is a continuation of application No. 17/033,408, filed on Sep. 25, 2020, granted, now 11,504,270.
Claims priority of provisional application 62/907,474, filed on Sep. 27, 2019.
Prior Publication US 2023/0181355 A1, Jun. 15, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 9/007 (2006.01); A61F 9/00 (2006.01); A61M 5/158 (2006.01); A61M 5/00 (2006.01); A61M 5/32 (2006.01)
CPC A61F 9/0008 (2013.01) [A61F 9/00781 (2013.01); A61M 5/002 (2013.01); A61M 5/158 (2013.01); A61M 5/3286 (2013.01); A61M 5/3291 (2013.01); A61M 2005/1585 (2013.01); A61M 2210/0612 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method for treating a condition of an eye comprising:
advancing a distal end of a cannula of a fluid delivery system into an eye, the fluid delivery system comprising a reservoir, a linear gear, and a linkage coupling the reservoir and the linear gear;
moving the linear gear relative to the linkage in a first direction with the fluid delivery system in a first configuration to deliver a fluid composition contained within the reservoir to the eye, wherein in the first configuration a first set of teeth on the linear gear prevents movement of the linear gear relative to the linkage in a second, opposite direction; and
transitioning the fluid delivery system from the first configuration to a second configuration in which a second set of teeth on the linear gear allows movement of the linear gear relative to the linkage in the first direction and second, opposite direction.
 
18. A method for treating a condition of an eye comprising:
advancing a distal end of a cannula of a fluid delivery system into an eye, the fluid delivery system comprising a reservoir, a linear gear, and a linkage coupling the reservoir and the linear gear;
moving the linear gear relative to the linkage in a first direction, wherein movement of the linear gear in the first direction causes a distal portion of the linkage to flex in a first plane; and
moving the linear gear relative to the linkage in a second, opposite direction, wherein movement of the linear gear in the second opposite direction causes the distal portion of the linkage to flex in a second, different plane.