Removable intracardiac RF device
First Claim
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1. A removable device for occluding a patent foramen ovale (PFO) comprising:
- a sheath comprising a proximal end, a distal end, and a lumen;
an elongated member, one of said sheath and said elongated member axially moveable relative to the other;
an energy delivery element comprising at least one coil comprising an electrode for delivering RF energy, said energy delivery element comprising a proximal end and a distal end, wherein said energy delivery element is coupled at its distal end and proximal end to said elongated member, wherein said energy delivery element is operatively joined to an energy source; and
a push rod moveable along said elongated member, wherein said push rod engages the proximal end of said energy delivery element when moving distally along said elongated member to facilitate deployment of said energy delivery element.
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Abstract
The present invention provides systems and methods for occluding or closing a patent foramen ovale of a patient (PFO). The invention includes a catheter carrying an energy delivery element. The catheter introduces the energy delivery element into the patent foramen ovale of a patient'"'"'s heart. Once appropriately positioned, the energy delivery element applies energy, such as radiofrequency energy, to the tissues surrounding the patent foramen ovale. The application of energy causes the tissues to join together, occluding the patent foramen ovale. The energy delivery element may be removable or permanently implanted in the patent foramen ovale.
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Citations
18 Claims
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1. A removable device for occluding a patent foramen ovale (PFO) comprising:
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a sheath comprising a proximal end, a distal end, and a lumen; an elongated member, one of said sheath and said elongated member axially moveable relative to the other; an energy delivery element comprising at least one coil comprising an electrode for delivering RF energy, said energy delivery element comprising a proximal end and a distal end, wherein said energy delivery element is coupled at its distal end and proximal end to said elongated member, wherein said energy delivery element is operatively joined to an energy source; and a push rod moveable along said elongated member, wherein said push rod engages the proximal end of said energy delivery element when moving distally along said elongated member to facilitate deployment of said energy delivery element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification