Alcon, Inc.

Mark W Vojtasek

Jesus R Gonzales, Jr

James Yong Chon

Grace Chuang Liao

Ashish Sinha

Nathaniel Reyes

Nathaniel Reyes, Ii

Hanspeter Naef

Jesus R Gonzales

Certain embodiments herein disclose a cannula assembly. The cannula assembly comprises a cannula, having a proximal end and a distal end. The cannula comprises a head at the proximal end, the head having one or more wings. The cannula also comprises a hollow rod extending from the head to the distal end. The cannula assembly also comprises a hub couplable to the head and having a housing with an inner wall. The inner wall comprises an undercut, and one or more distal ends of the corresponding one or more wings are configured to fit into the undercut and couple the hub to the head upon insertion of the head into the hub.

Cannula assembly

A diaphragm driven vitrectomy probe employing multiple diaphragms. The probe includes multiple diaphragms providing added areas to which hydraulic air may be delivered in reciprocating a cutter of the probe. Thus, the diaphragms and the probe housing may be reduced in size without sacrifice to force driving cutter reciprocation. Additionally, the amount of force attained and the rate of cutter reciprocation may be increased through the use of multiple diaphragms. Alternatively, the use of added diaphragms may allow for the rate of cutter reciprocation to be maintained even while the air pressure utilized may be reduced.

Multi-diaphragm vitrectomy probe

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Reading, PA, United States of America

Mark W Vojtasek