Medical probe device

A - Human Necessities – 61 – N

Patent

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Details

A61N 1/06 (2006.01) A61B 10/00 (2006.01) A61B 18/00 (2006.01) A61B 18/14 (2006.01) A61B 18/18 (2006.01) A61N 1/40 (2006.01) A61N 5/02 (2006.01) A61N 5/04 (2006.01) A61B 17/00 (2006.01) A61B 17/22 (2006.01) A61B 17/24 (2006.01) A61B 17/34 (2006.01) A61B 18/22 (2006.01) A61B 18/24 (2006.01) A61B 19/00 (2006.01) A61F 7/00 (2006.01) A61M 1/00 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2121032

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 cather 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 nonconductive layer (60), the electrical conductor being a radiofrequency electrode.

La présente invention porte sur une sonde médicale comprenant un cathéter (48) avec logement de guide stylet (50) dont une des parois latérales comporte un ou plusieurs orifices (140) et un guide (16) pour orienter un stylet souple (17) vers l'extérieur de l'orifice et au travers d'un tissu intermédiaire à un angle réglable prédéterminé jusqu'à un tissu cible. L'ensemble cathéter comprend un canal de guidage pour le stylet (61) communiquant avec l'orifice et un stylet placé à l'intérieur du canal de guidage pour assurer le mouvement longitudinal du stylet depuis l'orifice et au travers du tissu intermédiaire jusqu'au tissu cible. Le stylet peut être un conducteur électrique revêtu d'une couche non conductrice (60), le conducteur électrique étant une électrode haute fréquence.

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