With the rapid development of medical technology and electronic technology, advanced digital electronic devices are combined with analog circuits to provide medical functions, including diagnostic equipment. The number of electronic equipment used in medical equipment has increased significantly, and the complexity and diversity of equipment have also increased significantly. At the same time, medical electronic equipment is still developing in the direction of miniaturization and portability, all of which make medical electronic equipment face electromagnetic interference. and RF shielding issues.
The importance of medical electronic equipment in diagnosis and treatment makes the impact of electromagnetic interference on medical electronic equipment directly related to the personal safety of patients. With the realization of small size, high sensitivity and intelligence of medical and rehabilitation equipment, they are more susceptible to electromagnetic interference and other influences. Electromagnetic interference will deteriorate the performance of diagnostic instruments with poor electromagnetic compatibility, and provide doctors with medical information such as inaccurate and distorted data. Therefore, doctors cannot make correct diagnoses.
Commonly used methods to improve the electromagnetic compatibility of medical electronic devices include: grounding, shielding, and filtering. Shielding is a method of making conductive and magnetically conductive materials into a shield to control electromagnetic radiation inside the medical device to control radiation interference. It is also a method widely used by medical electronic device manufacturers to improve the electromagnetic compatibility of devices.
Revve New Materials recommends shielding materials that can be used for medical equipment: high-frequency absorbing materials, used to solve electromagnetic interference and radio frequency leakage areas, it can absorb electromagnetic wave energy projected on the surface and reflect, refract and scatter. It has the advantages of relatively light weight, non-fragile, wide absorption frequency band, good absorption performance, strong weather resistance, anti-aging, easy to bend, easy to process and cut, moisture resistance, pressure resistance, long-term use, and non-toxic.
