Catheter design that facilitates positioning at tissue to be...

Details Catheter design that facilitates positioning at tissue to be... Catheter design that facilitates positioning at tissue to be...

A - Human Necessities

61

B

A61B 18/00 (2006.01) A61B 18/14 (2006.01)

Patent

CA 2514036

A catheter used for diagnosing and treating, for example, atrial fibrillation. The catheter (10) includes a catheter shaft (14) that has a proximal portion (16) and a distal portion (18). The distal portion is adapted to be inserted into a body cavity having tissue (20) to be diagnosed or treated and is disposed remotely from the proximal portion. The distal portion, which may be curved or straight, comprises an outer peripheral wall (26, 26') having an active region (38, 38'), and the distal portion has a cross sectional configuration along the active region. The cross sectional configuration is adapted to bias the active region against the tissue to be diagnosed or treated.

L'invention concerne un cathéter utilisé pour le diagnostic ou le traitement, par exemple, de la fibrillation atriale. Le cathéter (10) comprend une tige de cathéter (14) qui possède une partie proximale (16) et une partie distale (18). La partie distale est conçue pour être insérée dans une cavité de corps comportant un tissu à diagnostiquer ou à traiter (20), et elle est éloignée de la partie proximale. La partie distale, qui peut être incurvée ou droite, comprend une paroi périphérique externe (26, 26') possédant une région active (38, 38'), et la partie distale possède une configuration en coupe transversale le long de la région active. La configuration en coupe transversale permet de presser la région active contre le tissu à diagnostiquer ou à traiter.

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