Method and apparatus for patterned plasma-mediated laser trephination of the lens capsule and three dimensional phaco-segmentation

US8425497B2 · kind B2 · utility

Assignee

• Optimedica Corporation · US

Inventors

• Mark S. Blumenkranz · Portola Valley, US
• Daniel V. Palanker · Palo Alto, US
• David H. Mordaunt · Los Gatos, US
• Dan Andersen · Menlo Park, US

Key dates

• Filing date: Mar 25, 2011
• Grant date: Apr 23, 2013
• Expiry date: Mar 25, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2009/00897
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

System and method for making incisions in eye tissue at different depths. The system and method focuses light, possibly in a pattern, at various focal points which are at various depths within the eye tissue. A segmented lens can be used to create multiple focal points simultaneously. Optimal incisions can be achieved by sequentially or simultaneously focusing lights at different depths, creating an expanded column of plasma, and creating a beam with an elongated waist.