Intraocular lens injector
US5468246A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1993 |
| Grant date | Nov 21, 1995 |
| Priority date | — |
| Expiry date | Jul 2, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/1662
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intraocular lens injector compresses an intraocular lens by rolling the lens into a tight spiral and injects the compressed lens though a relatively small incision in the eye, approximately 2-3 millimeters in length, resulting from a phacoemulsification procedure. The intraocular lens is inserted into a receiving channel of the injector in an uncompressed state and is urged into a cylindrical passageway. As the intraocular lens advances into the cylindrical passageway, the lens will roll upon itself into a tightly rolled spiral within the confines of the cylindrical passageway. An insertion rod is inserted into an open end of the cylindrical passageway and advances the compressed lens down the passageway. As the lens exits the passageway and enters the eye, the lens will expand back to its uncompressed state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.