Methods and apparatus for treatment of patent foramen ovale
A technology of elliptical holes and closing devices, which is applied in parts of surgical instruments, medical science, surgery, etc.
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[0051] The methods and devices of the present invention are generally used to treat tissue adjacent to a patent foramen ovale (PFO) causing the hole to close. The methods and devices generally include a catheter device that is advanced through the vasculature of a patient to position the distal end of the catheter near the PFO for treatment. A treatment device disposed at or near the distal end of the catheter may then be used to treat at least a portion of the heart wall tissue surrounding the PFO, causing the PFO to close. In many embodiments, the treatment device is used to deliver energy to a closure device and to the tissue surrounding the PFO. The energy causes a connection between the tissue of the PFO and the closing device, which in turn may include a response within the tissue, causing the PFO to close. In one embodiment, a therapeutic device includes one or more conductive elements. Such conductive elements may retract into (and extend out of) the body of the cath...
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