A trephine blade for preparation of corneal tissue for endothelial keratoplasty
Номер патента: EP4251075A1
Опубликовано: 04-10-2023
Автор(ы): Chameen Dilantha Samarawickrama
Принадлежит: Individual
Опубликовано: 04-10-2023
Автор(ы): Chameen Dilantha Samarawickrama
Принадлежит: Individual
Реферат: There is provided a trephine blade (10) for use in the preparation of a corneal graft for endothelial keratoplasty. The blade comprises a circular cutting edge (16) incorporating a notch formation (18) for cutting a correspondingly shaped asymmetric notch in the circumferential perimeter of donor corneal tissue to indicate correct orientation of the tissue in said endothelial keratoplasty. The notch formation can be defined by an inwardly directed cutting edge (20) of the blade and a further cutting edge (22) extending from an inner end of the inwardly directed cutting edge to the outer circumferential perimeter of the blade. In embodiments, the asymmetric notch in the circumferential perimeter of the donor corneal tissue is shaped to indicate whether the endothelial layer of the corneal tissue is facing upwardly or downwardly, when the corneal tissue is viewed from above. The endothelial keratoplasty in which the corneal graft may be used can be selected from DSAEK, DMEK, DLEK and DSEK.
A Trephine Blade For Preparation Of Corneal Tissue For Endothelial Keratoplasty
Номер патента: US20240000612A1. Автор: Chameen Dilantha Samarawickrama. Владелец: Individual. Дата публикации: 2024-01-04.