Medical probe device

摘要

A medical probe device comprises a catheter (48) having a stylet guide housing (50) with one or more stylet ports (140) in a side wall thereof and a stylet guide (16) for directing a flexible stylet (17) outward through the stylet port and through intervening tissue at a preselected adjustable angle to a target tissue. The total catheter assembly includes a stylet guide lumen (61) communicating with the stylet port and a stylet positioned in said stylet guide lumen for longitudinal movement from the port through intervening tissue to a target tissue. The stylet can be an electrical conductor enclosed within a non-conductive layer (60), the electrical conductor being a radiofrequency electrode.