Adjustable cannula systems and devices

US9198797B2 · kind B2 · utility

Assignee

• DOHENY EYE INSTITUTE · US

Inventors

• Ralph Kerns · Laguna Niguel, US
• Prashant Bhadri · Pico Rivera, US
• Matthew McCormick · Forest Falls, US
• Anderson Gustavo Teixeira Pinto · São Paulo, BR
• Mark Humayun · Glendale, US
• Luis Arana · Curitiba, BR

Key dates

• Filing date: Sep 21, 2010
• Grant date: Dec 1, 2015
• Expiry date: Apr 2, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/00867
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Various adjustable cannula systems are provided. The systems can include an adjustable cannula capable of expansion and/or contraction having an elongate body with a distal end and a proximal end. The adjustable cannula can be coupled to an upper housing and a lower housing such that rotation of the upper housing results in expansion or contraction of the adjustable cannula. The adjustable cannula can also have a proximal end having a lumen larger than a distal end lumen. A plurality of flanges can be formed in the elongate body by a plurality of slits that span a majority of a length of the cannula, including along or proximate to its proximal end and distal end.