US 11,712,369 B2
Apparatus for delivering ocular implants into an anterior chamber of the eye
Andrew T. Schieber, St. Louis Park, MN (US); and Iqbal K. Ahmed, Mississauga (CA)
Assigned to Alcon Inc., Fribourg (CH)
Filed by Alcon Inc., Fribourg (CH)
Filed on Feb. 28, 2020, as Appl. No. 16/805,217.
Application 16/805,217 is a continuation of application No. 14/440,610, granted, now 10,617,558, previously published as PCT/US2013/072001, filed on Nov. 26, 2013.
Claims priority of provisional application 61/730,895, filed on Nov. 28, 2012.
Prior Publication US 2020/0197221 A1, Jun. 25, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 9/00 (2006.01); A61F 9/007 (2006.01)
CPC A61F 9/0017 (2013.01) [A61F 9/00781 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A cannula for delivering an ocular implant into Schlemm's canal of an eye, comprising:
a curved body member adapted to extend along a medial plane through an anterior chamber of the eye to achieve tangential entry into Schlemm's canal, the body member comprising a lumen configured to direct the ocular implant from a location outside of the eye to a location within Schlemm's canal;
an opening at a distal end of the lumen; and
an asymmetric tip disposed at a distal end of the body member offset from, and asymmetric about, the medial plane, the asymmetric tip being located at an intersection between an upper camming surface and a lower camming surface, the upper camming surface being configured to contact scleral tissue of the eye, and the lower camming surface being configured to contact a scleral spur of the eye to guide the distal end of the body member and at least part of the opening into Schlemm's canal.