A system for visualizing a target area, comprising: an elongate shaft (102; 202; 302; 402), including: a distal portion, a lumen (108, 168; 216; 306; 406, 420) that extends longitudinally through the distal portion, and a first opening (150; 212; 314; 410) at a distal end of the distal portion, wherein the first opening is in communication with the lumen (108, 168; 216; 306; 406, 420); and a visualization assembly (136, 154; 206; 320; 416) housed within the distal portion of the elongate shaft (102; 202; 302; 402), wherein the visualization assembly (136, 154; 206; 320; 416) includes a transducer array (158; 208, 210; 322, 328; 422, 424) having a field of view in which the transducer array (158; 208, 210; 322, 328; 422, 424) transceives sound waves, and the field of view of the transducer array (158; 208, 210; 322, 328; 422, 424) covers at least part of the distal portion of the elongate shaft (102; 202; 302; 402) and the target area to facilitate visualization of the part of the distal portion of the elongate shaft (102; 202; 302; 402) and the target area, wherein the visualization assembly (136, 154; 206; 320; 416) has a distalmost end, and the transducer array (158; 208, 210; 322, 328; 422, 424) includes at least one transducer at the distalmost end, characterized in that the at least one transducer includes an annular plate (162; 324; 423) having a plurality of transducers (160; 422) thereon, and a second opening (166; 326; 426) extends through the annular plate (162; 324; 423), the second opening (166; 326; 426) being in communication with the lumen (108, 168; 216; 306; 406, 420). an elongate shaft (102; 202; 302; 402), including: a distal portion, a lumen (108, 168; 216; 306; 406, 420) that extends longitudinally through the distal portion, and a first opening (150; 212; 314; 410) at a distal end of the distal portion, wherein the first opening is in communication with the lumen (108, 168; 216; 306; 406, 420); and a distal portion, a lumen (108, 168; 216; 306; 406, 420) that extends longitudinally through the distal portion, and a first opening (150; 212; 314; 410) at a distal end of the distal portion, wherein the first opening is in communication with the lumen (108, 168; 216; 306; 406, 420); and a visualization assembly (136, 154; 206; 320; 416) housed within the distal portion of the elongate shaft (102; 202; 302; 402), wherein the visualization assembly (136, 154; 206; 320; 416) includes a transducer array (158; 208, 210; 322, 328; 422, 424) having a field of view in which the transducer array (158; 208, 210; 322, 328; 422, 424) transceives sound waves, and the field of view of the transducer array (158; 208, 210; 322, 328; 422, 424) covers at least part of the distal portion of the elongate shaft (102; 202; 302; 402) and the target area to facilitate visualization of the part of the distal portion of the elongate shaft (102; 202; 302; 402) and the target area, wherein the visualization assembly (136, 154; 206; 320; 416) has a distalmost end, and the transducer array (158; 208, 210; 322, 328; 422, 424) includes at least one transducer at the distalmost end, characterized in that the at least one transducer includes an annular plate (162; 324; 423) having a plurality of transducers (160; 422) thereon, and a second opening (166; 326; 426) extends through the annular plate (162; 324; 423), the second opening (166; 326; 426) being in communication with the lumen (108, 168; 216; 306; 406, 420). <EOS>