Expanded polytetrafluoroethylene (EPTFE) has unique structure and performance, good biocompatibility, and is very suitable for organ repair materials and plastic surgery materials. Moreover, with the advancement of medicine, the popularization of various difficult operations and the improvement of people’s living standards, the demand for them is increasing. However, most of the EPTFE products used at present rely on imports and are expensive, which brings a great deal to patients. economic burden.
Application of expanded polytetrafluoroethylene patch in external abdominal hernia repair
Abdominal hernia is the most common general surgical disease, and most of them are inguinal hernias. Surgical treatment is a recognized cure.
Polytetrafluoroethylene is a complete fluoride. The biggest advantage of the specially treated expanded polytetrafluoroethylene patch is that it has good flexibility and the force in all directions is in a balanced state. It can be cut and covered as needed. Presenting fiber continuity and unique porous microstructure, cells can infiltrate it, with good tissue compatibility and superior mechanical properties. EPTFE gasket has the lowest coefficient of friction among all polymer products, and is a tension-free hernia repair An ideal material for surgery.
EPTFE material is purely inert, has very strong biological adaptability, will not cause rejection of the body, has no physiological side effects to the human body, and can be disinfected by any method.
According to the requirements of medical textiles for their own performance:
(1) Resistance to biological aging: For long-term implanted biomedical materials, not only the biological stability is better, but also it does not produce harmful reactions to the host.
(2) It has stable physical and mechanical properties. For different purposes, biomedical materials should maintain a certain strength, elasticity, dimensional stability, bending fatigue resistance and abrasion resistance during use.
(3) Easy to process, easy to disinfect and sterilize.
Expanded PTFE gasket is a new type of medical material that meets all the above requirements. Expanded PTFE felt can be bent arbitrarily (over 360°), has good blood compatibility, and is resistant to biological aging. The full name of the expanded material commonly known in the plastic surgery field is expanded polytetrafluoroethylene surgical soft tissue patch, and the English name: expanded polytetrafluoroethylene (e-PTFE) surgical patch. After 40 years of clinical application of 6 million cases, there is no report of clinical rejection after implantation of various parts including artificial dura mater and heart patch, which fully proves that the material has good biocompatibility . From a medical point of view, it is currently the most ideal substitute for biological tissues.