Devices and methods for treating vascular malformations
OwnerHanson S. Gifford, Ivan Sepetka +2inventors
InventorsHanson S. Gifford, Ivan Sepetka, Mark E. Deem, Martin S. Dieck
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Abstract
A system for treating a vascular malformation has an expandable device and a heating device for heating and shrinking the malformation. The expandable device may have deformable elements which plastically deform in the expanded position. The balloon may be self-expanding, balloon expanded or expanded with an actuating rod. A fluid, such as saline, may be introduced during heating when using RF heating. A sealant may also be introduced into the expandable device to further seal the aneurysm.
Claims15
A method of treating a cerebral aneurysm, comprising the steps of:
- providing an expandable structure movable from a collapsed shape to an expanded shape;
- introducing the expandable structure into a blood vessel of a patient;
- advancing the expandable structure through the patient's vasculature to a cerebral aneurysm while the expandable structure is in the collapsed position;
- moving the expandable structure into the cerebral aneurysm;
- expanding the expandable structure to the expanded position in the cerebral aneurysm;
- shrinking the wall of the aneurysm;
- and
- leaving the expandable structure in the aneurysm after the shrinking step.
A method of isolating a cerebral aneurysm from the parental vessel, comprising the steps of:
- providing a device movable from a collapsed position to an expanded position, the device having a proximal portion when in the expanded position;
- introducing the device into the aneurysm in the collapsed position;
- expanding the device to the expanded position after the introducing step;
- shrinking the dome of the aneurysm so that the proximal portion of the expandable device extends around the neck of the aneurysm.
Dependencies are inferred from the claim text.