Concerned about the injection molding of medical supplies

      As we all know,medical supplies belong to the high value-added products manufactured by way of medical supplies to injection to enhance their competitive advantage is a general trend, Singapore's production and application of medical injection molded parts is very well developed. However, the injection molding of medical supplies in China, many of the quality requirements are very concerned about one of them is by radiation sterilization, the injection molded parts to maintain its internal and appearance quality remain unchanged. 
     
     Because of high cost, medical equipment, which many also apply to various types of plastics, for example: polyethylene (PolyEthylene / PE), polypropylene (PolyPropylene / PP), polystyrene (PolyStyrene / PS), etc. These materials are must possess excellent biocompatibility, blood compatibility and bio-alternative, to long-term and the body, blood contact, or even implanted in the body. Application of Plastics in the health care industry can be broadly divided into: 1, medical supplies or equipment accessories, such as containers and disposable medical supplies; 2 to repair the defects of human materials, such as contact lenses, artificial bone, artificial skin; 3, artificial organs, such as the artificial esophagus, artificial blood vessels, artificial heart and so on. 
   
     Injection molded parts for medical use of radiation sterilization of the disinfection method used methods. However, radiation sterilization methods also have some new problems, if you select the wrong plastic materials, injection molding medical devices that will change color, resulting in odor and molecular changes. To anticipate the extent of these changes to many manufacturing and testing procedures complicated. Radiation damage to plastic medical parts, making polymer molecules cross-linking or decomposition, the result is to make bending strength, impact strength, tensile strength and elongation decreased, leading to failure of medical injection molded parts. Exposed to radiation of medical injection molded parts to prevent damage, we must start from the source. These basic principles include the right design, choosing the right materials, plastic materials and injection molding processing correctly.