Modified PVC for Infusion Tubes

      Why or what are the advantages of modified PVC in infusion tubes?

Infusion tubes need to meet extremely strict requirements. The reason why modified PVC 

has become the mainstream choice is that it effectively balances these demands.

1.Excellent plasticity and softness: 

The PVC resin is inherently hard. By adding plasticizers (such as DEHP/DOP, or new environmentally friendly plasticizers), 

it can be made extremely soft, making it easy to bend and coil, which is convenient for patients' movement and 

also facilitates the operation and fixation by medical staff. 

2.Outstanding transparency and visibility: 

After modification, it can be made into highly transparent tubes, which facilitate medical staff to clearly observe 

the flow of the liquid medicine, bubbles, and whether there is any backflow. This is a basic requirement for medical safety. 

3.Excellent chemical stability and compatibility: 

For most of the infused solutions (such as saline, glucose, antibiotics, etc.), it has good chemical inertness 

and is unlikely to react, ensuring the efficacy of the medicine. However, its compatibility is not perfect (see the disadvantages below). 

4.Excellent processing performance and low cost: 

PVC can be easily processed into various specifications of pipes through the extrusion method, 

with high production efficiency and high yield rate. 

The cost is extremely low: whether it is resin or plasticizer, the raw material cost is much lower than 

that of other medical-grade polymer materials. For disposable medical consumables like infusion tubes, 

cost is a crucial consideration factor. 

5.Sufficient mechanical strength and flexibility: 

It can withstand certain stretching and compression (such as in an infusion pump), 

and will not easily rupture or break even when repeatedly bent during the patient's movement. 

6.Good sealing performance and weldability: 

The connection between the pipe material and the needle holder, dropper, etc. is usually achieved 

through high-frequency welding. PVC is particularly suitable for this process, as it can form a strong and sealed connection.

For more details, please visit www.forever-plastics.com