Ophthalmic working-channel cannula, single-use

An ophthalmic working-channel cannula is a sterile, single-use tube inserted through the sclera to provide controlled access for surgical instruments during eye procedures, particularly in posterior segment surgeries. It helps maintain intraocular pressure by allowing fluid irrigation while enabling precise manipulation of tools inside the eye.

These devices are typically classified as single-use medical instruments and must meet strict sterility and material safety standards. They are supplied pre-sterilized and are not intended for reuse, requiring proper disposal after one surgical use to prevent contamination.