An imaging catheter assembly is provided. In one embodiment, the imaging catheter assembly is a flexible elongated member having a distal end and a proximal end, and a tip member coupled to the distal end of the distal end of the flexible elongated member. A distal end member including a tubular main body having a closed far end, an open near end, and a proximal upper curved upper outer wall extending from the open near end and tapering toward the far end flat upper outer wall toward the closed far end； And an imaging element mounted in the tip member. In one embodiment, the imaging catheter assembly includes a flexible elongate member and a tip member coupled to a distal end of the flexible elongate member, the tip including a cylindrical body and a uniform outer diameter A member and an imaging element mounted within the tip member.撮像カテーテルアセンブリが提供される。一実施態様において、該撮像カテーテルアセンブリは、遠端部及び近端部を有する可撓性長尺部材と、該可撓性長尺部材の遠端部の遠端に結合される先端部材であって、閉鎖遠端、開放近端及び該開放近端から延びると共に前記閉鎖遠端に向かって遠端側平坦上部外壁へと先細る近端側湾曲上部外壁を有する筒状本体を含む先端部材と、該先端部材内に取り付けられる撮像要素とを含む。一実施態様において、該撮像カテーテルアセンブリは、可撓性長尺部材と、該可撓性長尺部材の遠端に結合される先端部材であって、筒状本体及び均一な外径を含む先端部材と、該先端部材内に取り付けられる撮像要素とを含む。
