Cornea trephine instrument
US5084059A · kind A · utility
11Cited by
14References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 4, 1990 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Apr 4, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/013
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ophthalmic device for making a circular incision in and alter the shape of the cornea of an eye has an inner body rotatably movable axially relative to an outer body to predetermine the depth of incision. A cornea stop is slidably moveable with the inner body to engage the cornea and position the device on the eye. The device is centered on the eye by means of a centering pin which is axially slidably moveable with respect to the cornea stop. A pointer located on the inner body operates in conjunction with a bezel on the outer body to provide a read-out of depth of the incision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.