Intraocular lenses and methods for producing same
US5423929A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1993 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Oct 27, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1052
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
New intraocular lenses (IOLs) and methods for producing IOLs are disclosed. The present methods include a combination of steps which increase the pull strength between the fixation member of the IOL and the optic of the IOL without requiring sophisticated high frequency corona discharge activation or plasma activation of the fixation member. The fixation members are doubly coated with primer components and silicone polymeric material precursor compositions before being secured to the optics. In addition, the optic members employed in the present invention can be formed, for example, molded, without recesses to accommodate the fixation members. Thus, such recesses can be formed and provided with a quantity of the above-noted precursor composition after the optic members are produced. The doubly coated fixation members are then placed in the recesses and secured to the optic members. The present methods are straight forward, easy to practice and are cost effective in producing high quality IOLs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.