PVC Chamber for Infusion Set
A PVC drip chamber in an infusion set is a transparent, flexible, cylindrical component made of medical-grade PVC (Polyvinyl Chloride). It is positioned between the IV fluid bag and the tubing, serving as a fluid reservoir and allowing healthcare providers to monitor and regulate the flow rate of the IV fluid by observing the drop count.
Key Points of PVC Drip Chamber
1. Material
- Medical-grade PVC
- Biocompatible, non-toxic, and DEHP-free options available
- Transparent for easy observation
2. Function
- Allows visualization and counting of fluid drops
- Acts as an air trap, preventing air bubbles from entering the vein
- Serves as a buffer zone to help adjust and control the flow rate
3. Structure
- Connected to a spike at the top (attached to IV fluid bottle/bag)
- Bottom end connects to IV tubing
- Often contains a drip orifice inside to standardize drop size
4. Types
- Vented or non-vented chambers
- Macro drip (10–20 drops/mL) or micro drip (60 drops/mL), depending on the application
5. Advantages
- Transparent – Easy to observe fluid flow
- Lightweight and durable
- Safe and sterile – Designed for single-use (disposable)
- Accurate flow control – When used with flow regulators or roller clamps
6. Compliance
- Manufactured under standards such as
7. ISO 8536-4 (Infusion equipment for medical use)
8. ISO 10993 (Biocompatibility)
9. USP Class VI materials
