05370675 is referenced by 846 patents and cites 159 patents.

A medical probe device comprises a catheter having a stylet guide housing with one or more stylet ports in a side wall thereof and a stylet guide for directing a flexible stylet 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 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, the electrical conductor being a radiofrequency electrode. Preferably, the non-conductive layer is a sleeve which is axially moveable on the electrical conductor to expose a selected portion of the electrical conductor surface in the target tissue. The stylet can also be a microwave antenna. The stylet can also be a hollow tube for delivering treatment fluid to the target tissue. It can also include a fiber optic cable for laser treatment. The catheter can include one or more inflatable balloons located adjacent to the stylet port for anchoring the catheter or dilation. Ultrasound transponders and temperature sensors can be attached to the probe end and/or stylet. The stylet guide can define a stylet path from an axial orientation in the catheter through a curved portion to a lateral orientation at the stylet port.

Title
Medical probe device and method
Application Number
929638
Publication Number
5370675
Application Date
February 2, 1993
Publication Date
December 6, 1994
Inventor
Hugh R Sharkey
Redwood City
CA, US
Ingemar H Lundquist
Pebble Beach
CA, US
Ronald G Lax
Grass Valley
CA, US
Stuart D Edwards
Los Altos
CA, US
Agent
Oblon Spivak McClelland Maier & Neustadt
Assignee
Vidamed
CA, US
IPC
A61B 17/39
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