An apparatus suitable for filtering emboli in an open surgical procedure. An upper end of the transmission shaft is protruded out from the shaft base, and a protruding end is provided for sheathing the coupling base of the drainer basket and form a sheathing and linking structure with the protruding end of the transmission shaft, such that the drainer basket can be assembled from the top of the bucket body. Flow of compressed air is selectively controlled by an electronic control circuit via at least one air flow control block, and the system may further include one or more air reservoirs. The coated fabric and cord materials are useful as facing fabrics for power transmission products. As will be appreciated by those skilled in the art, the various aspects and embodiments disclosed herein may be used singularly or in various combinations. The system is transparent to the mobile node, so that the mobile node is not required to request service from the network, or negotiate service parameters with the network.