Intracardiac echocardiography (ICE) catheter tip assembly

An imaging catheter assembly, comprising:

• an imaging component comprising a planar ultrasound transducer array;
• a tip member comprising a tubular body,
• wherein the tubular body comprises:
• a closed distal end,
• a distal flat top outer wall,
• an open proximal end,
• an inner cavity,
• a distal flat top inner wall opposite the distal flat top outer wall,
• a first inner sidewall,
• a second inner sidewall opposite the first inner sidewall,
• a first step extending inwardly into the inner cavity from the first inner sidewall and comprising a first horizontal surface,
• a second step extending inwardly into the inner cavity from the first step, wherein the second step comprises a second horizontal surface such that the first horizontal surface of the first step is connected to the second horizontal surface of the second step via a first vertical surface;
• a third step extending inwardly into the inner cavity from the second inner sidewall and comprising a third horizontal surface, and
• a fourth step extending inwardly into the inner cavity from the third step, wherein the fourth step comprises a fourth horizontal surface such that the third horizontal surface of the third step is connected to the fourth horizontal surface of the fourth step via a second vertical surface,
• wherein the imaging component is positioned within the inner cavity guided by the first step, the second step, the third step, and the fourth step;
• and
• a flexible elongate member coupled to the open proximal end of the tip member such that at least a distal portion of the flexible elongate member is received within a proximal section of the inner cavity of the tip member.