Selecting magnetic components for medical device applications
Release time:2024-08-30
Over the years, implantable medical devices have become smaller and smaller. Smaller devices can improve patient comfort and cause less damage to the human body when implanted. At the same time, smaller instruments can reduce the invasiveness and complexity of surgery, which is convenient for doctors to operate and easier for patients to accept. The magnetic elements associated with these instruments are almost exclusively custom designed to suit specific applications in confined spaces. Because magnetic components are usually large in size, raw materials and processing equipment are essential to achieve the goal of miniaturization.
Custom magnetic elements for implantable devices typically consist of a skeleton transformer, a toroidal coil transformer, a molded inductance, and an antenna with unique performance and shape characteristics to maximize compliance with specified standards. For this reason, various core materials and shapes are used in practice to optimize performance and meet application requirements.
Most custom magnetic components for implantable devices are the result of close collaboration between medical device manufacturers and magnetic component company engineers. It involves a discussion of how to balance size, price, and performance, with a focus on using the most cost-effective device in the available space. Once the components have been designed, very strict manufacturing processes, controls and testing procedures are developed to ensure the highest quality and reliability in terms of size and magnetic properties.
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