Haptic element using ion beam implantation for an intraocular lens
US4718905A · kind A · utility
58Cited by
5References
21Claims
0Family size
Inventor
Key dates
| Filing date | Aug 13, 1986 |
| Grant date | Jan 12, 1988 |
| Priority date | — |
| Expiry date | Aug 13, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2011/0016
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable intraocular lens for use within a human eye is provided with enhanced carrier or haptic loops for locating, supporting and maintaining the lens device in a desired position within the ocular chamber of an eye. Enhanced haptic longevity and biocompatibility is provided by a surface ion coating the polypropylene haptic on at least the surfaces making tissue contact. The biocompatible protective ion coating is applied by ion beam implantation. The biocompatible protective ion coating is preferably nitrogen, carbon, silicon or aluminum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.