Introduction to IV Cannulas

When it comes to life-saving medical tools, the IV cannula is one of the most used — yet least talked about. Whether you're receiving fluids, medications, or blood, chances are it’s through an IV cannula. In this guide, we’ll dive deep into everything from IV catheter types and IV catheter sizes to the most trusted IV cannula manufacturers and how Lars Medicare Private Limited is changing the game.
What Is an IV Cannula and Why It Matters
An IV cannula, also called an IV catheter, is a small, flexible tube inserted into a vein to provide direct access to your bloodstream. It allows for the rapid delivery of fluids, medications, or blood. It typically comes with a sharp needle used for insertion, which is then withdrawn — leaving the IV needle and catheter safely in place.
Think of it as a tiny, flexible bridge between a patient and their treatment.

Common IV Catheter Types You Should Know
Healthcare professionals use different IV catheter types depending on the situation. Here are the most common:
1. Peripheral IV Cannula
Inserted into smaller veins (usually in the hand or arm), these are ideal for short-term therapies like hydration or pain management.
2. Central Venous Catheters
Placed into larger veins (like those in the chest), these are best for long-term treatments such as chemotherapy or intensive care medication.
3. Butterfly IV Catheter
Also known as winged infusion sets, these are perfect for short procedures or drawing blood — especially in children or the elderly with fragile veins.
Understanding IV Catheter Sizes (And What the Colors Mean)
If you’ve seen nurses use different color-coded cannulas, that’s because they represent various IV catheter sizes, usually measured in gauges (G):
14G (Orange): Emergency blood transfusion
16G (Gray): Trauma and surgeries
18G (Green): Fluids or blood
20G (Pink): General use
22G (Blue): Pediatric or elderly
24G (Yellow): Neonatal and tiny veins
The IV catheter parts are color-coded for quick identification. So yes — the colors aren’t just for show!
Breaking Down the Parts of an IV Cannula
Let’s take a look inside a standard IV cannula setup:
Needle: Helps puncture the vein
Catheter: Flexible tube left in the vein after insertion
Flashback chamber: Confirms entry into the vein (you’ll see a flash of blood)
Hub and wings: Provide stability and connection to tubing
Together, these IV catheter parts work in sync to ensure the procedure is quick, smooth, and minimally painful.
How to Insert an IV Cannula the Right Way
Here’s a basic step-by-step breakdown:
Wash hands and wear gloves
Clean the area with an antiseptic
Insert the IV needle and catheter into the vein
Confirm flashback
Advance the catheter and remove the needle
Secure with medical tape
Flush with saline
It may sound simple, but it takes serious skill and training to do it right — and avoid complications.
Best Practices for Using an IV Catheter
Rotate insertion sites every 72–96 hours
Observe for swelling, redness, or pain
Always use sterile equipment
Educate patients on aftercare
Following these practices helps prevent issues like phlebitis, infiltration, or infection.
Where IV Cannulas Are Used in Medicine
From hospital ICUs to mobile ambulances, IV catheters are everywhere:
Emergency rooms for rapid drug administration
Operating rooms for anesthesia
Chemotherapy centers for cancer treatment
Home care settings for long-term infusion therapy
Meet Lars Medicare: A Leading IV Cannula Manufacturer
Here at Lars Medicare Private Limited, we’ve been producing world-class IV cannula brands trusted by hospitals in over 90+ countries.
What Makes Our Cannulas Different?
Designed for smooth insertion with minimal trauma
Built from biocompatible, medical-grade materials
Feature easy-to-identify color codes and safety caps
Manufactured in ISO- and CE-certified facilities
We’re not just another IV catheter manufacturer — we’re a partner in global health.
IV Cannula Brands That Healthcare Providers Trust
Looking for reliable IV cannula brands? Lars Medicare is proud to be among the most respected IV cannula manufacturers globally, thanks to our commitment to safety, affordability, and clinical innovation.
Eco-Friendly Manufacturing by Lars Medicare
Concerned about medical waste? So are we.
Lars Medicare is leading the way in sustainable manufacturing by:
Using recyclable plastics
Minimizing production waste
Investing in green energy solutions
As a responsible IV cannula manufacturer, we care about people — and the planet.
How to Choose the Right IV Cannula for Your Facility
If you're a buyer or medical director, here are a few quick tips:
Match the IV catheter sizes to patient demographics
Stock a variety of IV catheter types (peripheral, butterfly, central)
Source only from certified IV catheter manufacturers
Ensure availability of all standard IV catheter parts
The Future of IV Catheter Needles and Medical Access
Technology is advancing, and so are IV catheter needles. Expect smarter safety mechanisms, reduced pain insertion, and even digital tracking for IV therapy sessions in the future.
Read Blog: IV Catheter Needles Explained: Types, Sizes, and How They Work in Clinical Settings
Conclusion
So there you have it — a complete rundown on IV cannulas, from their types, sizes, and components to trusted IV cannula brands and manufacturers like Lars Medicare Private Limited. Whether you're a healthcare provider, buyer, or patient, understanding how these tiny devices work can make a big difference in care quality and comfort.
At Lars Medicare, we’re not just making products — we’re delivering health, safety, and trust.
FAQs
1. Are IV cannulas and IV catheters the same?
Yes, the terms are often used interchangeably. Both refer to the device used for venous access.
2. What is the difference between butterfly IV catheter and a regular one?
A butterfly IV catheter has wings for easier handling and is commonly used for short-term access or blood draws.
3. How do I know what IV catheter size to use?
It depends on the patient’s age, vein size, and the type of infusion. Color codes help make quick decisions.
4. Why should I choose Lars Medicare as my IV catheter manufacturer?
Because we offer top-quality, certified products with proven safety, available globally at competitive prices.
5. Do IV cannulas cause pain?
When inserted correctly, discomfort is minimal. IV needle and catheter technology today is designed to be as painless as possible.