Injection Eye Cannula

Description

Injection Eye Cannula

This injection eye cannula is a simple, general purpose tool in 21 gauge. It fits on a syringe and lets you place fluid or medication with a steady hand. Because it has no special tip shape, it fills many small roles in a busy eye theater.

Where a 21 gauge tube fits in

A 21 gauge bore is wide enough for a steady flow but still slim at the tip. For example, you can use it to irrigate the ocular surface, rinse the fornix, or place a drug under direct view. It also works as a spare when a more specific cannula is in the steam cycle.

Choosing between gauges

This listing offers the 21 gauge size only. Smaller numbers mean wider bores, so 21 gauge moves more fluid than a 27 or 30 gauge tube. In contrast, finer gauges give a gentler jet. Pick this one when flow matters more than a tiny tip. In brief:

• Size: 21 gauge
• Fits a standard syringe hub
• General injection and rinse tasks
• Reusable stainless steel

Technique and grip

Hold the syringe barrel, not the hub, so the cannula stays aligned. Then point the tip away from the cornea before you press. Push slowly at first, because a 21 gauge tube can deliver more than you expect. Finally, clear any air from the line before you start.

Reprocessing the cannula

Flush the bore with water right after use, then with a neutral cleaner. Next, dry it with air and check that the lumen runs clear. The cannula ships non-sterile. After full cleaning and sterilization, you can reuse it many times.

Order notes for the 21 gauge cannula

You get our standard promise: three years against manufacturing defects on the hub and tube alike. The steel conforms to ASTM F899. For finer options, our eye surgery catalog lists many more cannulas. A close cousin is the air injection cannula in 27 or 30 gauge. Our answers page explains orders, returns and invoicing.

Intended for professional use. Please read our sterilization guide and shipping policy.