Host cornea marking device
US5314439A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1992 |
| Grant date | May 24, 1994 |
| Priority date | — |
| Expiry date | Oct 29, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3937
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A host cornea marking device for providing marks on a recipient cornea bed of a corneal transplant patient is disclosed. The present marking device includes: an outer tube having a plurality of marking blades at one of opposite axial ends thereof which is adapted to face the recipient cornea bed, the marking blades being spaced apart from each other in a circumferential direction of said outer tube; and an inner tube which is received in the outer tube, such that the inner tube is axially slidable relative to the outer tube. The inner tube includes a contact portion at one of opposite axial ends thereof which is adapted to be in contact with the cornea bed so as to position the marking device with respect to a cutout section in the recipient cornea bed for receiving a donor cornea. A spring between the inner and outer tubes may be used to hold the inner tube in a first position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.