--It adopts imported dynamic system, i.e.the linear motor. --It has many functions like updown movements, back section turn and leg section turn. --It also applies to various posture of stretch out lying, seated and half lying during blood collecting. --The up-down function of the chair can increase or decrease the blood pressure during blood collection, that make the procedure smoothly taken on. --The surface of the back section fits the human body well that offers the donors comfort. --The wide arm board maintains the angle it is despite the back section changes its angle. Integrate with the function that turn outwards, the arm positioning for the donor is much more convenient. --Besides, a cantilever can assemble on the table as a special accessory, on which a LCD can be ftxed to play DVD and TV. --This design can release the donors mood, make the whole process more relax and happy, fits the humanization require.