China produces many Intermittent Pneumatic Compression (IPC) devices, which use inflatable cuffs and a pump to apply sequential pressure to limbs, improving circulation, preventing Deep Vein Thrombosis (DVT) and swelling, used in hospitals and for home recovery for athletes or post-surgery, with options ranging from calf-only to full-leg sleeves. These devices work like a massage, promoting blood flow and lymphatic drainage, available through major Chinese manufacturers and global suppliers like Alibaba.