A blood separation device,Including: sleeve,Having a first end and a second end,The first opening and the second opening are formed respectively；Inner rod assembly,It is coaxially arranged in the sleeve in the form of socket connection,Make the inner rod assembly reciprocate along the axial direction in the sleeve；The inner rod assembly further comprises a rod body and a groove body,The two are connected by thread,The rod body can be removed at will after being connected to the tank body；cover,It is coaxially arranged with the sleeve at the first end to be sleeved with the first opening,To close the first opening；And the bottom cover,It is coaxially arranged with the sleeve at the second end to be sleeved at the second opening,To close the second opening；The bottom cover has a central through hole,The rod body is connected with the groove body through the central through-hole.It is used to provide a simple, convenient and reliable device and method for separating platelet rich plasma.一種血液分離裝置，包含：套筒，具有一第一端與一第二端，分別形成第一開口與第二開口；內桿組件，以套接方式同軸設置於套筒內，使內桿組件於套筒內沿軸向方向進行往復運動；內桿組件進一步包含一桿體與一槽體，兩者以螺紋連接，使桿體連接至槽體後可任意卸除；頂蓋，與套筒同軸設置於第一端以套接於第一開口，藉以封閉第一開口；以及底蓋，係與套筒同軸設置於第二端以套接於第二開口，藉以封閉第二開口；底蓋具有一中心通孔，使桿體穿越中心通孔與槽體連接。用於提供一簡化、便利且可靠之裝置與方法以分離富含血小板血漿。
