Medical

Permanent magnetic components play an indispensable and important role in the medical field, and they are used in both diagnostic and therapeutic equipment. In terms of diagnosis, permanent magnetic components are the core of the magnetic resonance imaging (MRI) system. They can generate a stable and highly uniform magnetic field, which is crucial for obtaining clear and accurate images of human internal tissues. The high uniformity of the magnetic field generated by permanent magnetic components allows MRI to clearly present small tissue differences and lesions such as microvascular lesions in the brain, subtle injuries or tumors in the nervous system, which helps in early diagnosis and disease assessment. In addition, in the hospital's complex electromagnetic environment and with the equipment's own temperature changes, the magnetic field intensity fluctuates minimally. This ensures the consistency and reliability of the imaging results, which is beneficial for disease tracking and comparison. At the same time, when the magnetometer based on permanent magnetic components is used for biomagnetic detection, it can be combined with technologies such as superconducting quantum interference devices to measure the weak biomagnetic fields generated by the heart or brain with high sensitivity, providing a basis for the diagnosis of cardiovascular and nervous system diseases. In terms of treatment, in the magnetic drug targeted therapy system, the drug is combined with magnetic nanoparticles, and the magnetic field generated by the permanent magnet component can guide the drug to accurately accumulate at the lesion site. For example, in tumor treatment, anti-cancer drugs can be directed to tumor tissue, thereby increasing local drug concentration to enhance efficacy and reduce side effects on normal tissues. The magnetic field strength can also be flexibly adjusted according to factors such as the location, size, and depth of the lesion to achieve personalized and precise treatment; in magnetic therapy equipment, the magnetic field generated by the permanent magnet component acts on the acupuncture points or painful areas of the human body, which can promote local blood circulation and relieve muscle tension and pain. Magnetic therapy belts and mattresses can assist in the treatment of chronic pain diseases, and the depth and range of the magnetic field can be controlled by reasonably designing the size, shape, and arrangement of the permanent magnets, effectively acting on the lesion tissue while avoiding affecting the normal tissue. In addition, permanent magnet components are highly safe for use in the medical field and do not cause radiation hazards like radioactive methods. Long-term use in compliance with regulations will not have a negative impact on the health of patients and medical staff. They also have the characteristics of low energy consumption and do not require continuous external power supply to maintain the magnetic field, which can reduce the operating costs of medical equipment and hospital energy consumption. Their compact structure has the potential for miniaturization and portability, making diagnostic equipment more convenient to use at the bedside or at the first aid site, and therapeutic equipment can be used in home or community environments, expanding the scope of medical services and improving resource utilization efficiency. They have broad prospects and will continue to promote progress in the medical industry.