摘要 |
A catheter used for diagnosing and treating, for example, atrial fibrillatio n. 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 b e 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.
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