Polypropylene is the material of choice in medical application not only because of its light weight, low cost or both but also due to high chemical and bacterial resistance.
PP can be formulated and made suitable for steam and radiation sterilization which has great importance in medical field.
PP homopolymer, random and impact copolymer is applied to vast applications in this sector ranging from simple and complex equipment.
Broadly PP is used in invasive and non-invasive medical applications. The difference lies in the fact that invasive medical devices are meant for which penetration or breaking of the skin is required or devices used inside the body, e.g. implants. Whereas non-invasive medical devices do not go inside the body or skin, e.g. syringe.
Various bio-compatibility tests such as ISO 10993, USP and EP, are required to qualify any resin for medical use. The article briefly explains the concept of medical tests and the testing procedures and conditions for ISO 10993. Finally the article specifies the main constraints for a polypropylene resin to be penetrate into medical sector.
Although I was not a lead author for this project but my part was in providing some of the information such information for bio-compatibility tests. This is because, at NATPET I am involved with the regulatory compliance and certifications of products and also Product Stewardship.