Viscoelastic Aspiration Cannula | Ophthalmic OVD Removal Cannula | Surgical Aspiration Tool

Product Overview

The Viscoelastic Aspiration Cannula is a specialized surgical instrument designed for the safe and efficient removal of ophthalmic viscosurgical devices (OVDs) during cataract and anterior segment procedures. Engineered with a specific tip configuration to maximize aspiration efficiency while protecting delicate intraocular structures, this cannula ensures complete OVD clearance from the anterior chamber, capsular bag, and behind intraocular lenses, minimizing postoperative pressure spikes and inflammation risks.

Key Features & Benefits

Optimized Aspiration Design

• Specialized Tip Geometry: Features a rounded, atraumatic opening with optimized internal diameter for efficient OVD aspiration

• Dual-Port/Cross-Vent Design: Many models include secondary ports to prevent occlusion and ensure continuous flow

• Angled Configuration: Typically 30-45° angled tips for reaching behind IOLs and into capsular formices

• Smooth Transition Zones: Minimizes turbulence and preserves chamber stability during aspiration

Enhanced Surgical Performance

• Efficient OVD Clearance: Removes both cohesive and dispersive viscoelastics with minimal fluid exchange

• Reduced Endothelial Trauma: Rounded, polished tip edges protect corneal endothelium during manipulation

• Precision Control: Allows targeted aspiration from specific anatomical compartments

• Maintains Chamber Stability: Balanced aspiration rate preserves anterior chamber depth

Safety & Compatibility

• Luer Lock Connection: Standard compatibility with irrigation/aspiration handpieces and syringes

• Single-Use Sterility: Pre-packaged sterile to ensure aseptic technique and eliminate reprocessing risks

• Color-Coded Hubs: Quick visual identification in the surgical field (often green or blue)

• Consistent Performance: Engineered for reliable aspiration characteristics procedure after procedure

Technical Specifications

• Product Type: Viscoelastic Aspiration Cannula

• Common Gauges: 23G, 25G (0.6mm – 0.5mm outer diameter)

• Tip Configuration: Angled (typically 30°, 45°, or 60°)

• Tip Design: Single port, dual port, or cross-vent designs

• Length: 23-25mm working length (standard)

• Hub Type: Luer lock

• Material: Medical-grade stainless steel or polymer

• Sterility: Sterile, single-use (EO or gamma sterilized)

• Packaging: Individual peel pouches

Clinical Applications

• Cataract Surgery: Complete OVD removal following IOL implantation

• Premium IOL Cases: Thorough viscoelastic clearance behind toric, multifocal, and EDOF lenses

• Pediatric Cataract Surgery: Gentle aspiration in smaller anatomical spaces

• Anterior Vitrectomy: Aspiration in combined anterior segment procedures

• Corneal Transplant: OVD removal during endothelial keratoplasty (DSAEK/DMEK)

• Glaucoma Surgery: Viscoelastic aspiration in combined cataract-glaucoma procedures

Surgical Advantages

The specialized design of viscoelastic aspiration cannulas addresses the unique physical properties of OVDs—particularly their viscosity and tendency to compartmentalize behind IOLs and in the capsular bag. Unlike standard irrigation/aspiration tips, these cannulas are engineered to create optimal fluid dynamics that efficiently mobilize and remove viscoelastic materials with minimal balanced salt solution (BSS) exchange.

This results in:

• Reduced postoperative IOP spikes from retained OVD

• Lower risk of inflammatory responses from residual viscoelastic

• Decreased surgical time through efficient clearance

• Improved visibility during final surgical steps

• Enhanced safety in compromised corneal endothelium cases

Why Choose a Specialized Viscoelastic Aspiration Cannula?

While standard I/A tips can remove some viscoelastics, dedicated OVD aspiration cannulas are specifically engineered for this purpose. Their optimized internal diameter, venting designs, and angled configurations provide significantly more efficient clearance—particularly important with modern premium IOLs where complete posterior OVD removal is critical for proper lens positioning and function. This instrument represents the standard of care for thorough OVD management in contemporary anterior segment surgery.

Available in various angled configurations, gauge sizes, and packaging quantities to meet individual surgeon preferences and surgical center needs.