Intraocular lens
US4863464A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 26, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Jan 26, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/1683
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intraocular lens having one or more flexible haptic support loops connected to an optic. Each haptic support loop includes a first segment connected to the optic and extending therefrom at an acute angle relative to the optic periphery, a second segment extending from the first segment in an arc having at least one radius of curvature smaller than the radius of the optic and at least one radius of curvature on the side of the haptic opposite the acute angle formed by the first segment, and a third segment extending from the second segment in an arc having one or more radii of curvature greater than the radius of the optic which terminates in a free end spaced outwardly from the optic periphery. The first segment extends from the optic substantially parallel to a horizontal reference line (HR) on the optic and the second segment extends beyond a reference line that is parallel to a vertical reference line (VR) on the optic and tangent to the outer peripheral edge of the optic with the free end of the third segment located in a quadrant formed by the horizontal and vertical reference lines that is adjacent to the quadrant in which the second segment is located. This support loop s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.