A Complete Guide to Types, Features, and Sizes of IV Cannula

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A Complete Guide to Types, Features, and Sizes of IV Cannula

Introduce

Shanghai TeamStand Corporation is a professional medical device supplier and manufacturer. They offer a variety of high-quality products, including intravenous cannulascalp vein set needleblood collection needlesdisposable syringes, and implantable ports. In this article, we will focus specifically on IV Cannula. We will discuss the various types, features, and sizes available on the market today.

Types of IV Cannula

IV Cannulas are important medical devices used for intravenous treatment, blood transfusion, and drug administration. They come in different types to suit specific patient needs. The most common types of IV Cannulas include:

1. Peripheral IV Cannula

A Peripheral IV cannula is the most commonly used type in hospitals and clinics. It is inserted into small peripheral veins, usually in the arms or hands. This type is suitable for short-term therapies, such as fluid resuscitation, antibiotics, or pain management. It’s easy to insert and remove, making it ideal for emergency and routine use.

Key Features:

- Short length (usually under 3 inches)
- Used for short-term access (typically less than a week)
- Available in various gauge sizes
- Commonly used in outpatient and inpatient care

A Central Line IV cannula is inserted into a large vein, typically in the neck (internal jugular vein), chest (subclavian vein), or groin (femoral vein). The tip of the catheter ends in the superior vena cava near the heart. Central lines are used for long-term treatment, especially when high-volume fluids, chemotherapy, or total parenteral nutrition (TPN) is required.

Key Features:

- Long-term use (weeks to months)
- Allows administration of irritant or vesicant drugs
- Used for central venous pressure monitoring
- Requires sterile technique and imaging guidance

3.Closed IV Catheter System

A Closed IV catheter system, also known as a safety IV cannula, is designed with a pre-attached extension tube and needleless connectors to minimize the risk of infection and needlestick injuries. It provides a closed system from insertion to fluid administration, helping maintain sterility and reducing contamination.

Key Features:
- Minimizes blood exposure and infection risks
- Integrated needle protection
- Enhances safety for healthcare workers
- Ideal for facilities with high infection control standards

A Midline catheter is a type of peripheral IV device inserted into a vein in the upper arm and advanced so the tip lies below the shoulder (not reaching the central veins). It's suitable for intermediate-term therapy—typically from one to four weeks—and is often used when frequent IV access is needed but a central line is not required.

Key Features:
- Length ranges from 3 to 8 inches
- Inserted in larger peripheral veins (e.g., basilic or cephalic)
- Less risk of complications than central lines
- Used for antibiotics, hydration, and certain medications

Characteristics of intravenous cannulas

Intravenous cannulas are designed with multiple features to ensure optimal patient comfort and safety during intravenous treatment. Some key features include:

1. Catheter material: Intravenous cannulas are made of materials such as polyurethane or silicone. These materials are biocompatible and minimize the risk of thrombosis or infection.

2. Catheter tip design: The cannula tip can be pointed or rounded. The sharp tip is used when puncture of the vessel wall is required, while the rounded tip is suitable for delicate veins to reduce the risk of puncture-related complications.

3. Winged or Wingless: IV cannulas can have wings attached to the hub for easier handling and securement during insertion.

4. Injection port: Some intravenous cannulas are equipped with an injection port. These ports allow additional medication to be injected without removing the catheter.

Color Code GAUGE OD (mm) LENGTH FLOW RATE(ml/min)
Orange 14G 2.1 45 290
Medium Grey 16G 1.7 45 176
White 17G 1.5 45 130
Deep Green 18G 1.3 45 76
Pink 20G 1 33 54
Deep Blue 22G 0.85 25 31
Yellow 24G 0.7 19 14
Violet 26G 0.6 19 13

16 Gauge: This size is mostly used in the ICU or surgery areas. This large size enables many different procedures to be performed, such as blood administration, rapid fluid administration, and so forth.

18 Gauge: This size allows you to do most tasks that the 16 gauge can, but it large and more painful to the patient. Some of the common uses include administering blood, pushing fluids rapidly, etc. You can use this for CT PE Protocols or other testing that requires large IV sizes.

20 Gauge: You may be able to push blood through this size if you can't use an 18 gauge, but always check your employer's protocol. This size is better for patients with smaller veins.

22 Gauge: This small size is good for when patient's won't need an IV long and aren't critically ill. You usually can't administer blood due to it's small size, however, some hospital protocols allow for 22 G usage if necessary.

24 Gauge: This size is used for pediatrics and is usually only used as a last resort as an IV in the adult population.

In Conclution

Intravenous cannula is an indispensable medical device in various clinical operations. Shanghai TeamStand Corporation is a professional medical device supplier and manufacturer, providing a variety of high-quality intravenous cannula and other products. When selecting an IV cannula, it is important to consider the different types, features, and sizes available. The main types are peripheral venous cannulae, central venous catheters, and midline catheters. Features such as catheter material, tip design, and the presence of wings or injection ports should be considered. Additionally, the size of an intravenous cannula (indicated by the meter measurement) varies depending on the specific medical intervention. Selecting the appropriate intravenous cannula for each patient is critical to ensuring safe and effective intravenous therapy.


Post time: Nov-01-2023