Device for folding an elastic rubber intraocular lens

• US 5,139,501 A
• Filed: 02/26/1991
• Issued: 08/18/1992
• Est. Priority Date: 12/07/1990
• Status: Expired due to Term

• Current Assignee: Dieter Klaas
• Original Assignee: Dieter Klaas
• Inventors: Klaas, Dieter
• Primary Examiner(s): ASCHENBRENNER, PETER
• Application Number:
  US07/659,966
• Time in Patent Office: 539 Days
• Field of Search: 606/6, 606/1, 606/107, 606/166, 269/99, 269/165, 623/4, 623/6
• US Class Current: 606/107
• CPC Class Codes: A61F 2/1664 for manual insertion during surgery, e.g. forceps-like instruments

Abstract

A device for folding an elastic rubber intraocular lens, has two lens gripping elements which can be moved one relative to the other and which can be brought into contact with a lens body from diametrically opposite positions on a block frame. A lens reception space is provided between the gripping elements with a base surface for the flat positioning of the lens body. The space is open from the top to permit the lens to be folded when the two lens gripping elements are brought together.

Claims

1. A device for folding an elastic rubber intraocular lens comprising two lens gripping elements which can be moved relative to one another and which can be brought into contact with a lens body from diametrically opposite positions, the elements being mounted on a block frame and a lens reception space being provided between the gripping elements on the frame, the reception space having a base surface for flat positioning of the lens body and being open from the top, wherein the lens gripping elements have attachment means on upper surfaces thereof for attachment loops which form a haptic on the lens body.

10. A device as defined in claim 1, wherein a first of the lens gripping elements is immovably positioned on the block frame and a second of the lends gripping elements is mounted for guided movement on the block frame in directions toward and away from the first lens gripping element.

11. A device as defined in claim 1, wherein a dovetail groove is provided on the block frame for guidance of at least one of the lens gripping elements.

12. A device as defined in claim 1, wherein the block frame and the lends gripping elements, are integrated with a lens body flatly positioned in the lens reception space to form a reception container for storage of the lens.

2. A device for folding an elastic rubber intraocular lens comprising two lens gripping elements which can be moved relative to one another and which can be brought into contact with a lens body from diametrically opposite positions, the elements being mounted on a block frame and a lens reception space being provided between the gripping elements on the frame, the reception space having a base surface for flat positioning of the lens body and being open from the top, wherein each lens element has a gripping surface concave in plan view and configured for providing an open space for access of an implantation instrument between the lens gripping element and the lens body when held in folded condition by the lens gripping elements.

3. A device as defined in claim 2, wherein a first of the lens gripping elements is immovably positioned on the block frame and a second of the lens gripping elements is mounted for guided movement on the block frame in directions toward and away from the first lens gripping element.

4. A device as defined in claim 2, wherein a dovetail groove is provided on the block frame for guidance of at least one of the lens gripping elements.

5. A device as defined in claim 2, wherein the block frame and the lens gripping elements, are integrated with a lens body flatly positioned in the lens reception space to form a reception container for storage of the lens.

6. A device for folding an elastic rubber intraocular lens comprising two lens gripping elements which can be moved relative to one another an which can be brought into contact with a lens body from diametrically opposite positions, the elements being mounted on a block frame and a lens reception space being provided between the gripping elements on the frame, the reception space having a base surface for flat positioning of the lens body and being open from the top, wherein the gripping surfaces of the lens gripping elements are concave in plan view and undercut at an acute angle relative to the base surface of the lens reception space.

7. A device as defined in claim 6, wherein a first of the lens gripping elements is immovably positioned on the block frame and a second of the lends gripping elements is mounted for guided movement on the block frame in directions toward and away from the first lens gripping element.

8. A device as defined in claim 6, wherein a dovetail groove is provided on the block frame for guidance of at least one of the lens gripping elements.

9. A device as defined in claim 6, wherein the block frame and the lends gripping elements, are integrated with a lens body flatly positioned in the lens reception space to form a reception container for storage of the lens.