In today's society, with the continuous advancement of science and technology, more and more modern medical devices have developed rapidly, especially electronic instruments that are in direct contact with the human body, in addition to the increasingly high requirements for the performance of the instrument itself.
Human safety considerations are also receiving increasing attention. For example: cardiac puncture monitors, ultrasound, maternal and child monitors, baby incubators, life monitors and other instruments that are in close contact with the human body, which means that patients cannot use the instrument to cause electric shock or other aspects of the human body. Any danger. Medical electronics, unlike other electronic and power electronics that target mass-market and cost-conscious consumer electronics and other low-cost product applications, medical electronics have many more rules to follow.
If the designer is responsible for system power design, the first consideration for the system power supply section is: purchase or manufacturing related solutions. Since medical electronics production is generally relatively low, designers must consider buying or making problems. Medical electronics designers rarely consider designing their own offline power supplies. Because the investment required for this particular design and test does not match the final production scale, equipment manufacturers will find it difficult or impossible to share the investment in the design phase. Therefore, it is more cost-effective to purchase power directly from companies that already have the corresponding professional design capabilities and testing techniques.
A large number of inductive chargers use a flyback converter. Inductive charging provides charging power to the medical device battery, while the inductive charger is also used in a large number of portable devices such as toothbrushes.
Reducing the size of the rechargeable battery helps to reduce the size of the implantable medical device with a wireless inductive charging circuit. The wireless inductive charger safely charges a tiny film (such as a Cymbet EnerChip) rechargeable energy storage device mounted on the device.
In commercial application design, if the quality is guaranteed, it is easy for people to directly select the lowest-priced power product after shopping for three. At this time, the products with the lowest price but “going to go” are often winners, while the best products are not welcome. This is not bad for disposable electronic products that are quickly abandoned or need not be repaired, but what is the risk if the designer chooses such a power supply to use the medical system? The value of medical electronics is high. Need to complete some key tasks. If the medical system fails, the consequences are not just to miss a game or to take the wrong car.
The normal operation of medical equipment, especially the power supply of medical equipment, must comply with safety, leakage, EMI-RFI radiation and protection regulations. These standards and related safety regulations constitute a set of strict regulatory requirements. Power supplies used in such demanding applications must meet stringent specifications for insulation measures to prevent patient and medical personnel from getting an electric shock. EMC is also a key issue, including how to reduce electromagnetic radiation and how to protect electromagnetic radiation.
Therefore, for the design of medical power supply, the first choice must be the quality and reliability of the product. Often designers are confused about commercial power supplies and medical power supplies, and manufacturers that manufacture low-cost power supplies for the mass market may sell these commercial power supplies as medical power supplies without modification. In this regard, buyers must be careful, because the choice of such power products will lead to terrible consequences. Therefore, designers need to understand the relevant regulations and regulations.