Granted Patent
S1
US 1,107,914 · App. 29/947,440 · Granted Dec 30, 2025
Trephine blade
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Claims (1)
The ornamental design for a trephine blade, as shown and described.
Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Mar 25, 2026
From: SAMARAWICKRAMA, CHAMEEN DILANTHA
To: CORZA MEDICAL, INC.; SAMARAWICKRAMA, CHAMEEN DILANTHA
Reel/Frame 074180/0555 →
Priority Claims (2)
AU 202318506
· Dec 15, 2023
· national
AU 202318507
· Dec 15, 2023
· national
References Cited (30)
US D443059S
· Endo
· 2001
[cited by examiner]
US D627885S
· Brannon
· 2010
[cited by examiner]
US D644327S
· Singh
· 2011
[cited by examiner]
US D749217S
· Brannon
· 2016
[cited by examiner]
US D819817S
· Weston
· 2018
[cited by examiner]
US D989308S
· Sweitzer
· 2023
[cited by examiner]
US 20230218302A1
· Villarroel
· 2023
[cited by examiner]
US 20240000612A1
· Samarawickrama
· 2024
[cited by examiner]
CN 111568637A
· 2020
[cited by applicant]
WO 2014187435A1
· 2014
[cited by applicant]
WO 2022109678A1
· 2022
[cited by applicant]
Bachmann; et al., “A Method to Confirm Correct Orientation of Descemet Membrane During Descemet Membrane Endothelial Keratoplasty”, Am J Ophthalmol., doi: 10.1016/j.ajo.2010.01.005, Jun. 2010, vol. 149 No. 6, pp. 922-92…
[cited by applicant]
Bhogal; et al., “Use of a single peripheral triangular mark to ensure correct graft orientation in Descemet membrane endothelial keratoplasty”, Journal Cataract Refractive Surgery, Sep. 2015, vol. 41, No. 9:, pp. 2022-2…
[cited by applicant]
Donaghy; et al., “Descemet Membrane Endothelial Keratoplasty (DMEK), An Introduction to Corneal Transplantation”, May 21, 2015, University of Iowa, Ophthalmology and Visual Sciences, EyeRounds.org., pp. 1-6.
[cited by applicant]
Matsuzawa; et al., “Use of four asymmetric marks to orient the donor graft during Descemet's membrane endothelial keratoplasty”, BMJ Open Ophthalmology, accepted Jun. 27, 2017, vol. 1, pp. 1-4.
[cited by applicant]
Parekh; et al., “Standardizing Descemet Membrane Endothelial Keratoplasty Graft Preparation Method in the Eye Bank-Experience of 527 Descemet Membrane Endothelial Keratoplasty Tissues”, Cornea, Dec. 2017, vol. 36, No. 1…
[cited by applicant]
Rickmann; et al., “Clinical results after single asymmetrical shark fin for graft orientation in DMEK”, International Ophthalmology, Apr. 2022, vol. 42, No. 4, pp. 1061-1068.
[cited by applicant]
Solley; et al., “DescePrep Significantly Increases Descemet Membrane Endothelial Keratoplasty Processing Efficiency and Success Rate in Diabetic Human Donor Corneas in Comparison With Manual Dissection”, Cornea, Oct. 1,…
[cited by applicant]
Solley; et al., “Evaluation of Efficacy, Efficiency, and Cell Viability of a Novel Descemet Membrane Endothelial Keratoplasty Graft Preparation Device, DescePrep, in Nondiabetic and Diabetic Human Donor Corneas”, Cornea…
[cited by applicant]
Veldman; et al., “The S-stamp in Descemet Membrane Endothelial Keratoplasty Safely Eliminates Upside-down Graft Implantation”, American Academy of Ophthalmology, Jan. 2016, vol. 123, No. 1, pp. 161-164.
[cited by applicant]
Katena, “Instruments Biologics Devices”, “Barron Vacuum Trephines & Punches”, Katena Designed For Sight Catalogue, Katena, Denville NJ 07834, USA., 2015, pp. 181-183.
[cited by applicant]
International Patent Application No. PCT/AU2021/051414, International Search Report, Feb. 23, 2022, 5 pages.
[cited by applicant]
International Patent Application No. PCT/AU2021/051414, Written Opinion, Feb. 23, 2022, 9 pages.
[cited by applicant]
European Patent Application No. EP 21895956.7, Extended European Search Report, Jun. 3, 2024, 9 pages.
[cited by applicant]
Affliated Tongji Hospital of Tongji Medical College of Huazhong University of Science & Technology; English Machine Translation of Chinese Patent Application No. 111568637, Aug. 25, 2020, 6 pages.
[cited by applicant]