Corneal Transplants
Penetrating Keratoplasty Hanna Trephine System
Recipient Button: Hanna Trephine |
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| Easy and perfect set-up, each and every case Insert the appropriate size disposable blade in the trephine and select 1.2 mm depth setting to obtain full-thickness trephination. You are ready to perform the cut on the recipient. |
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| One trephine with disposable blade of 12 different diameters Disposable blade of diameters from 7 to 9 mm with 0.25 mm steps, and 9 to 10.5 mm with 0.5 mm steps. |
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| Controlled trephination depth Ability to select the depth of the incision and avoidance of damage to inner structures of the eye during trephination. Visualization of the blade as it cuts the tissue. The Trephine can be set in 50 microns increments from 0 to 1.2 mm. |
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| Reliable centering Accurate centering of the trephine with a fenestrated inner obturator. |
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| 8 suction holes The suction at the limbus secures the Trephine to the eye during trephination. |
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| A vertical and uniformly shape trephination The uniform support of the entire cornea on both sides of the trephine blade prevents corneal vaulting, and stabilizes the cornea during trephination. |
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Donor Button: Trephination from Epithelial Side |
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| Trephine the donor button epithelial side The use of the Artificial Chamber and the Hanna Trephine allows the surgeon to cut the donor tissue in conditions similar to the recipient reducing shape disparity. |
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| Water tight and pressure control As all donor tissues can have different sizes, the artificial chamber has been specially designed to give the optimal pressure even for small donor tissues. |
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| The cylindrical guide insures that the blade is always centered over the donor corneo-scleral shell. The punch block uses the same disposable blade as the trephine. | |