Silicone intubation is commonly performed to maintain patency of the lacrimal drainage system. We describe a new lacrimal groove director, designed to simplify retrieval of the metal Crawford probe with minimal trauma to the nasal mucosa. This instrument can also be used to infracture or medialize the inferior turbinate in both pediatric and adult populations during nasolacrimal duct intubation or external or endoscopic dacryocystorhinostomy.
A, The new lacrimal groove director. Round tab on the handle (arrow) allows easy orientation of the instrument. B, The distal tip of the lacrimal groove director next to the olive tip of the Crawford probe. The keyhole groove of the instrument traps and engages the olive tip.
A, The olive tip of the Crawford probe is directed into the groove director. B, When the instrument is slowly retracted, the olive tip is directed into the distal portion of the instrument where it can be engaged by the keyhole groove. This is accomplished regardless of whether the olive tip is directed anteriorly or posteriorly. C, The Crawford probe is now securely engaged with the keyhole groove and can be removed through the nose. The instrument prevents lacerations to the nasal mucosa by keeping the tip of the Crawford probe contained throughout the entire procedure.
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