Methods and apparatus employing ionizing radiation for...

Surgery – Radioactive substance applied to body for therapy – Radioactive substance placed within body

Reexamination Certificate

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Reexamination Certificate

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10252731

ABSTRACT:
Method and apparatus are disclosed employing ionizing radiation for forming lines of ablation or lesions in cardiac tissue to treat atrial fibrillation or other electrophysiological problems with the heart. The apparatus may include a catheter in which the radiation source is advanced hydraulically after the catheter is in place within the heart. Various fixation devices are also disclosed for fixing the location of the catheter within the heart.

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PCT International Preliminary Examination Report, for corresponding Application No. PCT/US02/30159, dated, Sep. 23, 2004.
International Search Report dated Feb. 20, 2003, mailed Mar. 18, 2003, relative to International Application No. PCT/US02/30159.

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