ATRAUMATIC IOL INSERTION CARTRIDGE OPENING

摘要

This intraocular lens (IOL) injector cartridge has a proximal opening in a main body for receiving an IOL. The main body has a lumen that extends longitudinally to a distal end having an opening smaller than the IOL. Passage through the lumen compresses or rolls the IOL so that when the distal end is inserted through a small incision in the eye the IOL can be expelled into the capsular bag. The distal end of the cartridge is beveled with a leading tip in front of a trailing heel. The characteristics of the beveled end are such that damage to the IOL is reduced. The bevel may be straight or curved and includes a distal face defined by the thickness of the distal end between the lumen and an exterior surface. The distal face may be flush with the bevel or chamfered. An inner corner angle between the distal face and the lumen is ≧60° to reduce the chance of scratching the IOL as it passes out of the distal opening.

主权项

1. A cartridge for receiving and delivering an intraocular lens to the inner eye, comprising:
a main body extending longitudinally from a proximal opening for receiving the intraocular lens to a distal end, and a lumen extending from the proximal opening to the distal end which defines a distal opening that is smaller than the intraocular lens, the distal end being beveled as seen in side view with a leading tip below and opposite a trailing heel, the distal end further defining a distal face between an exterior surface and the lumen, the distal face including at least one portion that is not flush with the beveled distal end as seen in side view.