According to certain aspects of the invention, one kind is disclosed for making the visual system in target area (100), and the system (100) may include elongated shaft (102). The elongated shaft may include the opening of distal part, lumen and the distal end in the distal part, and the lumen extends lengthwise through the distal part. Opening can be connected to the lumen. The system may also include the visualization component (154) being contained in the distal part of the elongated shaft. The visualization component may include transducer array (158), and the transducer array (158) has the visual field of the wherein transducer array transmitting-receiving sound wave. At least part that the visual field of the transducer array can cover the distal part of the elongated shaft and the target area are to be conducive to the visualization of the part and the target area of the distal part of the elongated shaft.
