IP Library Granted Patent US 12,569,367
Granted Patent B1
US 12,569,367 · App. 19/348,908 · Granted Mar 10, 2026

Systems and methods for endothelial regeneration of Schlemm's canal

Inventor: Michael Reynard (Santa Monica, CA)
A61F9/0017A61F9/007A61M25/0045A61M2025/0057A61M2202/0007A61M2202/097A61M2205/0238A61M2205/3306A61M2205/3327A61M2210/0612
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Quick Facts
Patent No.
US 12,569,367
App. No.
19/348,908
Granted
Mar 10, 2026
Kind
B1
Abstract

The present disclosure provides systems, methods, and compositions for delivering endothelial cells into Schlemm's canal to restore physiological outflow in glaucoma and other ocular disorders. The document encompasses diverse devices and hydrogel carriers suitable for delivering endothelial cells, including conduits, microcatheters, scaffolds, stents, support devices, Schlemm's canal expanders, viscodilation balloons, tensioning sutures, hydrogel sleeves, and injectable formulations. The endothelial cells may be combined with extracellular matrix components, drugs, or growth factors, and may be delivered using controlled-release hydrogels to ensure uniform circumferential seeding. The system enables removal of dysfunctional Schlemm's canal endothelial cells, OCT/OCTA-guided functional analysis, and re-endothelialization via bioengineered scaffolds. Embodiments further integrate artificial intelligence for intraoperative guidance, predictive analytics, and postoperative monitoring of endothelial integration. Safe dosing strategies are disclosed to avoid canal obstruction, and commercial applications include combination biologic-device products and digital health solutions.

Claims (12)

1 . A method comprising:

creating an incision in an eye providing access to Schlemm's canal;

inserting a catheter through the incision into the Schlemm's canal, the catheter comprising hydrogel and endothelial cells;

initiating degradation of the hydrogel to release the endothelial cells into the Schlemm's canal; and

withdrawing the catheter.

2 . The method of claim 1 , wherein the incision is a corneal incision.

3 . The method of claim 1 , wherein the incision is a scleral incision.

4 . The method of claim 1 , wherein the catheter is inserted around one quarter of a length of the Schlemm's canal.

5 . The method of claim 1 , further comprising monitoring coverage of the endothelial cells.

6 . The method of claim 5 , wherein the monitoring of the coverage of the endothelial cells is performed with optical coherence tomography (OCT).

7 . The method of claim 6 , wherein the monitoring of the coverage of the endothelial cells is performed with optical coherence tomography angiography (OCTA).

8 . The method of claim 1 , wherein the hydrogel is a coating on the catheter.

References Cited (61)
US 4655771A · Wallsten · 1987 [cited by applicant]
US 5478338A · Reynard · 1995 [cited by applicant]
US 5558669A · Reynard · 1996 [cited by applicant]
US 5899517A · Murawa et al. · 1999 [cited by applicant]
US 6140127A · Sprague · 2000 [cited by applicant]
US 6428501B1 · Reynard · 2002 [cited by applicant]
US 8439972B2 · Badawi et al. · 2013 [cited by applicant]
US 8540659B2 · Berlin · 2013 [cited by applicant]
US 9510973B2 · Wardle · 2016 [cited by applicant]
US 9642746B2 · Berlin · 2017 [cited by applicant]
US 10154924B2 · Clauson et al. · 2018 [cited by applicant]
US 10485701B2 · Haffner et al. · 2019 [cited by applicant]
US 10517769B2 · Wood · 2019 [cited by applicant]
US 10993840B2 · Berlin · 2021 [cited by applicant]
US 11058584B2 · Berlin · 2021 [cited by applicant]
US 11090188B2 · Badawi et al. · 2021 [cited by applicant]
US 11116660B2 · Badawi et al. · 2021 [cited by applicant]
US 11135088B2 · Wardle et al. · 2021 [cited by applicant]
US 11259961B2 · Ianchulev · 2022 [cited by applicant]
US 11344477B2 · Kahraman et al. · 2022 [cited by applicant]
US 11389327B2 · Badawi et al. · 2022 [cited by applicant]
US 11389328B2 · Badawi et al. · 2022 [cited by applicant]
US 11419762B2 · Ianchulev · 2022 [cited by applicant]
US 11504270B1 · Badawi et al. · 2022 [cited by applicant]
US 11540940B2 · Noda et al. · 2023 [cited by applicant]
US 11857460B2 · Badawi et al. · 2024 [cited by applicant]
US 11872158B2 · Badawi et al. · 2024 [cited by applicant]
US 11872954B2 · Neubauer · 2024 [cited by applicant]
US 11938058B2 · Schieber et al. · 2024 [cited by applicant]
US 11951037B2 · Badawi et al. · 2024 [cited by applicant]
US 12016796B2 · Schieber et al. · 2024 [cited by applicant]
US 12042428B2 · Badawi et al. · 2024 [cited by applicant]
US 12213914B2 · Badawi et al. · 2025 [cited by applicant]
US 12274640B1 · Reynard · 2025 [cited by applicant]
US 12310891B2 · Badawi et al. · 2025 [cited by applicant]
US 12310892B2 · Ianchulev et al. · 2025 [cited by applicant]
US 12336933B2 · Noda et al. · 2025 [cited by applicant]
US 12350192B2 · Badawi et al. · 2025 [cited by applicant]
US 20020013456A1 · Sutcliffe et al. · 2002 [cited by applicant]
US 20020169130A1 · Tu · 2002 [cited by examiner]
US 20050220843A1 · DeWitt · 2005 [cited by examiner]
US 20070191863A1 · De Juan, Jr. · 2007 [cited by examiner]
US 20140296800A1 · Erickson · 2014 [cited by examiner]
US 20140323995A1 · Clauson · 2014 [cited by examiner]
US 20180036065A1 · Yates et al. · 2018 [cited by applicant]
US 20190017017A1 · Xie · 2019 [cited by examiner]
US 20190117459A1 · Berlin · 2019 [cited by applicant]
US 20200188173A1 · Berlin · 2020 [cited by applicant]
US 20200281766A1 · Berlin · 2020 [cited by applicant]
US 20210386584A1 · Badawi et al. · 2021 [cited by applicant]
US 20220104967A1 · Badawi et al. · 2022 [cited by applicant]
US 20220104968A1 · Badawi et al. · 2022 [cited by applicant]
US 20220280339A1 · Badawi et al. · 2022 [cited by applicant]
US 20220280340A1 · Badawi et al. · 2022 [cited by applicant]
US 20230080761A1 · Taylor · 2023 [cited by examiner]
US 20240366424A1 · Badawi et al. · 2024 [cited by applicant]
CN 102971030A · 2013 [cited by examiner]
WO WO9211896A1 · 1992 [cited by examiner]
Text translation of CN reference (Year: 2013). [cited by examiner]
Blache U, Ehrbar M. Inspired by Nature: Hydrogels as Versatile Tools for Vascular Engineering. Adv Wound Care (New Rochelle). Jul. 1, 2018;7(7):232-246. doi: 10.1089/wound.2017.0760. PMID: 29984113; PMCID: PMC6032659 (Y… [cited by examiner]
Carol W Chen et al. Sustained release of endothelial progenitor cell-derived extracellular vesicles from shear-thinning hydrogels improves angiogenesis and promotes function after myocardial infarction, Cardiovascular R… [cited by examiner]