Contactless visualization system for a surgical microscope for eye surgery

US12292560B2 · kind B2 · utility

Assignee

• Carl Zeiss Meditec AG · DE

Inventors

• Jonathan Essig · Neresheim, DE
• Andre Mueller · Hilzingen, DE
• Christian Beder · Aalen, DE

Key dates

• Filing date: Jan 25, 2024
• Grant date: May 6, 2025
• Expiry date: Jan 25, 2044

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/3616
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A contactless visualization system for a microscope for eye surgery includes an ophthalmic loupe positionable in front of a patient's eye and supplies a real and vertically and laterally inverted image of the fundus in an intermediate image plane observable with the microscope. The loupe includes first and second lens elements. When positioned in front of the eye, the first lens element is closer to the eye than the second. A wall extending from the first to the second lens element has a free end in a form of a mount which holds the second lens element. The wall has a passage opening formed therein for removing liquid possibly present in an intermediate space between the first lens element and the second lens element. The first lens element has a boundary surface facing the second lens element. The passage opening includes a lower edge bordering on the boundary surface of the first lens element.