Description: An I.V. Cannula 16G (Grey) is a large-bore medical device designed for the rapid administration of fluids and medications directly into a patient's vein. The "16G" refers to the gauge size; in the standardized medical color-coding system, Grey signifies a 16-gauge needle. Because of its large internal diameter, it allows for exceptionally high flow rates, making it a critical tool in emergency medicine, surgery, and trauma care.
In Nigeria, the 16G Cannula is an essential component of emergency room and theater kits. It is available through authorized medical suppliers like Sanlive Pharmacy, ensuring you receive a sterile, non-pyrogenic, and high-quality device manufactured from medical-grade materials such as PTFE (Teflon) or FEP to minimize the risk of thrombophlebitis and vessel irritation.
Important: I.V. Cannulas must only be inserted by trained healthcare professionals (doctors, nurses, or paramedics). Improper insertion can lead to complications such as hematoma, infiltration, or infection. This device is for single-use only and must be disposed of in a sharps container immediately after removal to prevent needlestick injuries.
The 16G Grey Cannula is primarily used for:
Rapid Fluid Resuscitation: Essential for treating patients in shock or those with severe dehydration where high volumes of fluid are needed quickly
Trauma Management: Used in emergency cases to replace blood and fluids lost due to major injury
Major Surgical Procedures: Providing reliable access for anesthesia and large-volume intraoperative fluid management
Rapid Blood Transfusion: The large bore prevents the shearing or damage of red blood cells during high-speed transfusions
Emergency Medication Delivery: Ensuring life-saving drugs reach the central circulation almost instantaneously
Color Code: Grey (International Standard)
Gauge Size: 16G
Flow Rate: Approximately 180ml/min to 200ml/min (varies slightly by brand)
Cannula Length: Typically 45mm to 50mm
Material: Biocompatible, kink-resistant catheter with a stainless steel needle
Features: Often includes a flashback chamber for instant confirmation of successful vein entry and integrated wings for secure skin fixation
This device is suitable for:
Adults with large, accessible veins who require aggressive fluid therapy
Patients undergoing major abdominal, thoracic, or orthopedic surgeries
Emergency department cases involving multi-system trauma or severe hemorrhage
Not recommended for: Children, the elderly, or patients with fragile, small, or "rolling" veins. In these cases, a smaller gauge (such as 20G Pink or 22G Blue) is preferred to avoid rupturing the vein (blown vein).
Ensure the patient is in a comfortable position and the insertion site (usually the forearm or antecubital fossa) is properly cleaned with an alcohol swab
Flashback Check: Once the needle enters the vein, look for blood in the "flashback chamber" before advancing the catheter
Securement: Use a dedicated transparent IV dressing (like Tegaderm) or surgical tape to fix the wings firmly to the skin
Flushing: Flush with 0.9% Normal Saline before and after medication administration to ensure patency and prevent clotting
Monitoring: Inspect the site every few hours for signs of redness, swelling, or pain (phlebitis)
Reputable Medical Brands (e.g., BD, B. Braun, or Polymed) – Manufactured under strict ISO and CE standards to ensure needle sharpness, catheter flexibility, and absolute sterility.
100% sterile and genuine 16G Grey Cannulas with intact safety seals
Guaranteed medical-grade quality to ensure smooth insertion and patient comfort
Bulk and individual availability for clinics, hospitals, and home-care settings
Fast and reliable delivery to health facilities across Nigeria
Is 16G larger than 18G?
Yes. In medical gauges, the smaller the number, the larger the diameter. A 16G (Grey) is significantly larger and has a higher flow rate than an 18G (Green).
Does it hurt more to insert?
Because of the larger needle size, patients may feel a more significant "pinch" during insertion compared to smaller cannulas. Local anesthesia (like Emla cream) is sometimes used in non-emergency settings to improve comfort.
How long can it stay in the vein?
Generally, a peripheral I.V. cannula should be changed every 72 to 96 hours (3–4 days) to prevent infection, or sooner if signs of irritation appear.
Where can I buy authentic 16G Grey Cannulas in Nigeria?
You can purchase the I.V. Cannula 16G (Grey) online through Sanlive Pharmacy & Stores for guaranteed quality, sterility, and prompt delivery.
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