Hybrid ophthalmic interface apparatus
US9795509B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2014 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Jan 1, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/009
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus and methods are provided for interfacing an ophthalmic surgical laser with an eye using a patient interface (PI). The PI may include a closed, fluid-filled bladder having fiducials that contacts and deforms to the eye. Or, the PI may have an applanation lens with an outer ring portion and an inner concave portion for receiving the apex of the cornea. Another PI features a suction ring with a flexible skirt for contacting the sclera that is non-circular and/or non-planar. A system for injecting an index matching fluid into the area above the eye may also be incorporated. An integrated system includes a co-molded lens cone and attachment ring, with a lens window at the bottom of the lens cone which provides a sealed volume for vacuum-attaching a laser delivery system above the lens cone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.