초록 ▼

A medical probe device comprising a catheter having a stylet guide housing with at least one stylet port in a side thereof and stylet guide means for directing a flexible stylet outward through at least one stylet port and through intervening tissue to targeted tissues. The stylet guide housing has

A medical probe device comprising a catheter having a stylet guide housing with at least one stylet port in a side thereof and stylet guide means for directing a flexible stylet outward through at least one stylet port and through intervening tissue to targeted tissues. The stylet guide housing has an optical viewing means positioned for viewing the stylet and adjacent structure which includes a fiber optic channel means for receiving a fiber optic viewing device. The fiber optic channel means can include a guide port means for directing longitudinal movement of a fiber optic device with respect to the stylet guide means in a viewing zone and a flushing liquid channel in the stylet guide housing having an exit port positioned to direct flushing liquid issuing therefrom across the end of a fiber optic device when positioned in the viewing zone. The optical viewing means can comprise a viewing window positioned in the stylet guide housing for viewing the stylet when it is directed outward from its respective stylet port. The optical viewing means can include a fiber optic channel in the stylet guide housing for receiving the a fiber optic viewing device and aligning the viewing end thereof with the viewing window. Windowed devices can include a flushing liquid channel in the stylet guide housing having an exit port positioned to direct flushing liquid issuing therefrom across a surface of the viewing window.

대표청구항 ▼

[ We claim:] [1.] A medical probe device for medical treatment of tissue in a body accessible through a natural body cavity comprising an elongate probe member having a proximal extremity and a distal extremity and a longitudinal axis and having a passageway therein extending from the proximal extre

[ We claim:] [1.] A medical probe device for medical treatment of tissue in a body accessible through a natural body cavity comprising an elongate probe member having a proximal extremity and a distal extremity and a longitudinal axis and having a passageway therein extending from the proximal extremity to the distal extremity along the longitudinal axis, a stylet mounted in the elongate probe member, the stylet having proximal and distal extremities and including a conductive radio frequency electrode, handle means coupled to the proximal extremity of the elongate probe member, hand operable means carried by the handle means and connected to the stylet for causing advancement of the stylet through the passageway, a radio frequency generator coupled to the stylet for supplying radio frequency energy to the conductive radio frequency electrode, a return electrode electrically coupled to the radio frequency generator and in contact with the body, the distal extremity of the elongate probe member being in communication with the passageway and permitting the distal extremity of the stylet to be advanced out of the passageway sidewise at an angle with respect to the longitudinal axis and an optical viewing device mounted in the elongate probe member and having a distal extremity positioned in the distal extremity of the elongate probe member and having a field of view which permits viewing the distal extremity of the stylet as it is advanced from the passageway sidewise of the longitudinal axis.