Intraocular lens having haptics with non-symmetrical cross-section

• US 5,549,669 A
• Filed: 09/20/1994
• Issued: 08/27/1996
• Est. Priority Date: 08/02/1993
• Status: Expired due to Term

• Current Assignee: AMO Uppsala AB (Johnson & Johnson)
• Original Assignee: Pharmacia AB (Pharmacia Corp.)
• Inventors: Jansen, Peter
• Primary Examiner(s): JONES, MARYBETH O
• Application Number:
  US08/309,988
• Time in Patent Office: 707 Days
• Field of Search: 623/6
• US Class Current: 623/6.49
• CPC Class Codes: A61F 2/1613 having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
• CPC Class Codes: A61F 2002/1681 having supporting structure for lens, e.g. haptics
• CPC Class Codes: A61F 2002/30014 differing in elasticity, stiffness or compressibility
• CPC Class Codes: A61F 2002/30116 partial circles, i.e. circular segments
• CPC Class Codes: A61F 2002/30154 square
• CPC Class Codes: A61F 2002/30156 triangular
• CPC Class Codes: A61F 2002/30168 L-shaped
• CPC Class Codes: A61F 2230/0002 Two-dimensional shapes, e.g. cross-sections
• CPC Class Codes: A61F 2230/0004 Rounded shapes, e.g. with rounded corners
• CPC Class Codes: A61F 2230/0021 square
• CPC Class Codes: A61F 2230/0023 triangular
• CPC Class Codes: A61F 2230/0043 L-shaped
• CPC Class Codes: A61F 2250/0018 differing in elasticity, stiffness or compressibility

Abstract

An intraocular lens includes an optical lens body and haptics extending outwardly from the optical lens body. Each of the haptics is defined by a plane and includes at least a portion having a cross-section which is non-symmetrical with respect to the plane of the haptic.

Claims

1. An intraocular lens including an optical lens body and haptics extending outwardly from the optical lens body, each haptic being defined by a plane, the improvement comprising each haptic having a cross-section along its entire length which is non-symmetrical with respect to the plane of said haptic.

2. An intraocular lens according to claim 1, wherein said haptics have a triangular cross-section.

3. An intraocular lens according to claim 1, wherein said haptics have an L-shaped cross-section.

4. An intraocular lens according to claim 1, wherein said haptics have a quarter circle-shaped cross-section.

5. An intraocular lens according to claim 1, wherein said haptics are angulated with respect to a plane defined by the optical lens body.