Limited depth corneal punch
US11344451B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 23, 2019 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Nov 30, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/009
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A single-use adjustable depth trephine corneal punch device that allows a goal trephination depth of a donor cornea to be set and cut prior to a surgical procedure for cutting selected portions of an actual patient cornea. The corneal punch includes a punch block having a central well for receiving a donor cornea, a punch top mounted atop the punch block and having a central cylindrical opening coaxially aligned with the well, a punch blade mounted atop the punch top and through the opening cooperates with the top for combined limited rotation and limited axial movement from a reference or “start” point and into juxtaposed relation against the cornea and a limited axial downward movement during rotation to make a shallow cut in the cornea.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.