IV CANNULA - POLYWIN STANDARD 

IV Cannula is a sterile tubular device that can be fitted with an injection port which is introduced into a peripheral vein for administering drugs by intravenous route, making an infusion or a blood transfusion.

What Size to use?

The decision regarding which size cannula will depend on the type of intravenous therapy required and the condition of the patient’s veins.
Younger people tend to have sturdier veins making cannulation easier, compared to elderly patients who have much smaller and fragile tortuous veins.
In an emergency situation, any form of cannula will suffice however we should try to use the best suited cannula for the needs of the individual patient.

14G        Trauma patients /Large volume replacement

16G        Trauma patient /Major surgery / Intra or post-partum GIT bleeding

18G        Blood products & Delivery of irritant medications

20G        General use IV maintenance, IV antibiotics, IV analgesia

22G        Paediatrics / Fragile veins

24G        Paediatrics/Neonates

Needles / cannulas presented as safety devices beside the conventional presentation, the safety mechanism is built into the needle.  

This mechanism is offered  either active or passive needle-based safety systems to meet clinician preferences.

Active system:  Safety mechanism is activated by the clinician after the injection.  

Passive system:  Needle is automatically shielded after the injection.