Compression therapy devices are primarily categorized into two types: pneumatic compression and mechanical compression:
- Pneumatic devices utilize inflatable air bladders-resembling segmented leg or arm sleeves-connected to a main unit via air hoses. They offer precise pressure regulation and allow for the setting of graduated pressure tailored to specific body areas, though they require an external power source and are relatively bulky.
- Mechanical devices typically consist of elastic bandages or adjustable compression garments made from shape-memory alloy springs or specialized knitted materials. They do not require a power source, but offer relatively lower precision in pressure control.
According to the national classification catalog for medical devices, compression therapy equipment with a clear therapeutic function is classified as a Class II medical device.
