Lang’s Lachrymal Cannula 3.8cm (1.5”) Ophthalmic Irrigation Instrument

Lang’s Lachrymal Cannula 3.8cm (1.5”) – Precision Tear Duct Irrigation

The essential instrument for lacrimal system patency. The Lang’s Lachrymal Cannula is a precision ophthalmic tool specifically engineered for the irrigation, flushing, and diagnostic probing of the tear drainage system. Featuring a delicate 3.8cm (1.5”) profile and a specialized curved tip, this cannula acts as a mechanical necessity for ophthalmologists and clinical specialists managing epiphora (excessive tearing) and dacryocystitis. Its design facilitates the smooth navigation of the lacrimal canaliculi, ensuring effective clearance of obstructions with maximum patient comfort.

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Key Features for Safe Lacrimal Irrigation

• Anatomically Curved Distal Tip: The 1.5-inch shaft is finished with a gentle curve, meticulously designed to follow the natural contour of the canalicular pathway for easier entry and reduced resistance.
• Atraumatic Smooth Polish: The cannula surface and distal opening are polished to a mirror finish, ensuring snag-free insertion and minimizing the risk of "false passage" or tissue trauma within the delicate duct walls.
• Standard Luer-Lock Compatibility: Features a universal hub that connects securely to standard medical syringes, allowing for the controlled delivery of saline or diagnostic dyes into the lacrimal system.
• Precision 3.8cm (1.5”) Reach: Optimized length for the average adult lacrimal anatomy, providing enough depth to reach the lacrimal sac while maintaining steady, hand-held control.
• Surgical-Grade Stainless Steel: Forged from high-tensile, corrosion-resistant steel to maintain structural integrity and prevent the fine tip from bending during repeated clinical use.
• Lightweight Maneuverability: The balanced construction allows for subtle tactile feedback, enabling the practitioner to "feel" obstructions or strictures within the duct.

Product Overview: Mastery in Tear Duct Diagnostics

The Lang’s Lachrymal Cannula is a foundational instrument in any ophthalmic diagnostic kit. Whether performing a routine Jones test or clearing a chronic blockage in a surgical setting, this cannula provides the refined control required for success. Its primary role is to facilitate the "Syringing and Probing" (S&P) procedure, where the patency of the nasolacrimal duct is confirmed by the successful passage of fluid into the nose or throat.

Built for the rigorous hygiene standards of modern ophthalmology, this cannula is fully reusable and designed to withstand frequent autoclave cycles. Its durability makes it a reliable choice for both busy hospital departments and private practices. Its versatility also extends to veterinary ophthalmology, where it is frequently used to manage tear duct issues in small animals and exotic species.

Specifications & Clinical Applications

Feature Details

Material Premium Surgical Stainless Steel

Total Length 3.8cm (1.5 Inches)

Tip Profile Fine, Curved / Atraumatic

Connection Universal Luer Hub

Maintenance Fully Autoclavable / Reusable

Primary Use Cases:

• Lacrimal Irrigation: Flushing the tear ducts to remove mucus, debris, or discharge.
• Diagnostic Probing: Identifying the location and severity of nasolacrimal duct obstructions.
• Post-Operative Care: Maintaining patency after dacryocystorhinostomy (DCR) surgery.
• Veterinary Ophthalmology: Managing lacrimal system disorders in pets.
• Clinical Training: A core tool for teaching residents the mechanics of lacrimal syringing.

Why Professionals Choose Lang’s Cannula?

• Improved Patient Experience: The curved, smooth tip significantly reduces the discomfort associated with tear duct flushing.
• Procedural Accuracy: High tactile feedback allows for the precise location of ductal stenoses.
• Reliable Performance: Surgical steel ensures the lumen remains clear and the tip remains perfectly aligned over time.
• Universal Utility: Fits seamlessly into existing surgical trays and works with standard clinical disposables (syringes).

Frequently Asked Questions (FAQ)

Q: Is this cannula sharp or blunt?

A: This is a blunt irrigation cannula. It is designed to navigate the natural openings of the lacrimal system without piercing tissue.

Q: How do I ensure the lumen (hollow center) is properly cleaned?

A: After use, the cannula should be immediately flushed with distilled water or an enzymatic cleaner using a syringe. This prevents the buildup of proteins or salt crystals that could clog the fine opening before autoclaving.

Q: Can this be used on pediatric patients?

A: While the 1.5” Lang’s cannula is a standard adult size, it can be used for some pediatric cases. However, for neonatal or infant lacrimal work, a shorter or finer-gauge cannula is often preferred.

Q: Does it fit a standard 2cc or 5cc syringe?

A: Yes, the hub is designed to fit standard Luer-slip and Luer-lock syringes commonly used in clinical practice.