Active implantable medical devices

What are active implantable medical devices?

Active implantable medical devices (AIMDs) are specialized electronic devices that are surgically implanted in the body to provide therapeutic functions. They must comply with strict regulatory requirements to enable patient safety and long-term performance. These devices actively control or monitor physiological functions and rely on an internal power source.

Unlike passive implants, which serve structural or supportive roles (like orthopedic screws or heart valves), active implants are equipped with sensors, stimulators, or actuators that facilitate immediate feedback and intervention. Some common examples of active implantable medical devices include cardiac pacemakers, cochlear implants, and neurostimulators.

Which materials are used for active implantable medical devices?

The selection of materials for active implantable medical devices is critical due to the unique demands of their operating environments. Active implantable medical devices must be biocompatible, durable, and capable of withstanding mechanical stress and physiological conditions. The most common materials used in these devices are glass, ceramics, titanium, platinum and stainless steel.