A medical probe device of this invention comprising a catheter having a control end and a probe end. The probe end includes a stylet guide housing having at least one stylet port and stylet guide means for directing a flexible stylet outward through at least one stylet port and through intervening tissue...http://www.google.se/patents/US5591125?utm_source=gb-gplus-sharePatent US5591125 - Medical probe with stylets
