Designed for long term use, the durable, top of the line Bio Compression SC-3004 Lymphedema Pump is a sequential compression device with calibrated gradient pressure treating people with lymphedema. The device reduces swelling of the arms and legs. It also treats chronic venous stasis ulcers and venous insufficiency. The calibration feature offered on the SC-3004 allows the patient to adjust the pressure in a specific chamber for increase comfort