US 12,127,974 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 May 15, 2023, as Appl. No. 18/197,679.
Application 18/197,679 is a continuation of application No. 17/827,485, filed on May 27, 2022, granted, now 11,951,037.
Application 17/827,485 is a continuation of application No. 17/239,270, filed on Apr. 23, 2021, granted, now 11,344,447, issued on May 31, 2022.
Application 17/239,270 is a continuation of application No. 17/121,455, filed on Dec. 14, 2020, abandoned.
Application 17/121,455 is a continuation of application No. 15/854,126, filed on Dec. 26, 2017, granted, now 10,888,453, issued on Jan. 12, 2021.
Application 15/854,126 is a continuation of application No. 13/644,769, filed on Oct. 4, 2012, granted, now 9,855,167, issued on Jan. 2, 2018.
Claims priority of provisional application 61/613,274, filed on Mar. 20, 2012.
Prior Publication US 2023/0277373 A1, Sep. 7, 2023
Int. Cl. A61F 9/00 (2006.01); A61F 9/007 (2006.01)
CPC A61F 9/0008 (2013.01) [A61F 9/0017 (2013.01); A61F 9/007 (2013.01); A61F 9/00736 (2013.01); A61F 9/00781 (2013.01)] 34 Claims
OG exemplary drawing
 
1. A device for delivering fluids, the device comprising:
a housing comprising a refillable reservoir, wherein the reservoir is fluidically coupled to a connector configured to be fluidically coupled to a fluid container for loading fluid into the reservoir;
a cannula comprising a proximal end, a distal end, and a lumen, the proximal end of the cannula coupled to a distal end of the housing, the distal end of the cannula configured to penetrate an eye of a patient via a corneal incision, and the lumen of the cannula extending from the proximal end to the distal end of the cannula;
a conduit comprising a proximal end, a distal end, and a lumen, the proximal end of the conduit fluidically coupled to the reservoir, and the lumen extending from the proximal end of the conduit to the distal end of the conduit;
a first actuator configured to, when actuated, advance the conduit along the lumen of the cannula and cause the conduit to exit via the distal end of the cannula; and
a second actuator in contact with the first actuator and configured to, when actuated, increase pressure inside the reservoir to cause the fluid stored in the reservoir to flow through the conduit and exit via the distal end of the conduit, wherein the lumen of the conduit is configured to allow the fluid stored in the reservoir to flow through the conduit and into the eye of the patient, and
wherein the conduit is sized so as to extend out of the distal end of the cannula and along an at least 90-degree arc of Schlemm's canal of the patient when the first actuator is actuated.