Deflectable elongated guidewire assembly

A method of using an elongated guidewire assembly and an elongated introducer assembly with a first biological wall and a second biological wall, being positioned proximate to the first biological wall, of a patient, the method comprising:

• selectively maneuvering the elongated guidewire assembly having a distal segment terminated at a distal puncture device along the elongated introducer assembly;
• and
• selectively protracting the distal segment and the distal puncture device away from a distal introducer exit portal after the distal introducer exit portal has been maneuvered proximate to a first outer surface of the first biological wall;
• and
• contacting, at least in part, the distal segment having a distal length with the first outer surface of the first biological wall after selectively protracting the distal segment and the distal puncture device away from the distal introducer exit portal;
• and
• applying a tenting force along, at least in part, the elongated guidewire assembly after, at least a portion of the distal segment is parallel to and has contacted, at least in part, the first outer surface of the first biological wall;
• and
• transmitting the tenting force without damaging the second biological wall, via the distal segment, from the elongated guidewire assembly to the first biological wall after the tenting force has been applied to the elongated guidewire assembly.