Medical devices need to use qualified suppliers of materials why

Does the questioner want to ask "Do medical devices need to be made from qualified suppliers and why"? Yes, to ensure the safety of medical treatment. Medical devices are an indispensable part of the medical field, used to diagnose, treat and monitor the patient's physical condition, can improve the accuracy of diagnosis, avoid misdiagnosis and omission of the occurrence of the need to use qualified suppliers of materials to ensure the safety of medical devices for doctors to provide a more accurate, more efficient and safer methods of treatment, greatly improving the effectiveness of treatment and medical efficiency. Medical devices are instruments, equipment, apparatus, in vitro diagnostic reagents and calibrators, materials and other similar or related items used directly or indirectly in the human body, including the required computer software.