Apparatus, tools, device and methods provided for treating a patient including: making an incision or puncture though the patient's skin; establishing an initial tract through an opening formed by the incision or puncture; inserting a guide member having a flexible distal portion and a distal tip into the initial tract and extending the initial tract to form a delivery tract leading to a target location within the patient's body; wherein said distal tip and at least a portion of a remainder of said guide member are transparent and delivering an obturator and conduit assembly over said guide member to place a distal end of the conduit of said obturator and conduit assembly in a location at or near the target location, said obturator having been inserted into said conduit prior to delivering said assembly over said guide member such that a distal end of said obturator extends distally out of a distal opening of said conduit wherein said obturator comprises a central lumen adapted to closely follow said guide member while sliding thereover.