A catheter device having a proboscis, such as a needle, and a transducer which detects the axial displacement of the proboscis in relation to the distal tip of the catheter. The inner cylinder is disposed at the distal end section of the lead body. The waste liquid vessel and the recovery vessel are held at positions below the top section of the rack, such that the waste liquid vessel and the recovery vessel are capable of being moved alternately to the position just below the extracting cartridge having been held at the top section of the rack.