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US 7,842,069 B2Granted
Inflatable occluder
AssigneeNMT Medical, Inc.
InventorsDavid R. Widomski, Steven W. Opolski, Andrzej J. Chanduszko, Carol A. Devellian
Life of this patent
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Abstract
An implant for occluding a septal defect, such as a patent foramen ovale (PFO), and methods of delivering the implant are described. The implant includes a scaffold, at least one channel, and an injection port in fluid communication with the channels for inflating the scaffold.
Claims19
A system for closing of an intracardiac defect, comprising:
- a first scaffold enclosing at least one first channel, said first channel comprising a lumen;
- a second scaffold enclosing at least one second channel, said second channel comprising a lumen;
- an injection port connectable to a catheter and in fluid communication with the lumen of the first channel and the lumen of the second channel and the catheter, wherein the lumen of the first channel and the lumen of the second channel are in fluid communication;
- and
- a structural member associated with the first scaffold extending radially from a center of the first scaffold toward a margin of the first scaffold and configured to provide resistance to expansion of the scaffold such that the structural member become slightly bent near their free end upon expansion of the scaffold, wherein the structural member comprise a portion of the scaffold that is thicker than another portion of the scaffold which provide resistance to expansion of the scaffold, wherein a fluid introduced into the injection port flows into the channels thereby expanding the scaffolds.
2 more elements
A method for closing an intracardiac defect, comprising:
- positioning a compliant occluder adjacent the intracardiac defect in need of repair, the occluder comprising a first scaffold, a second scaffold, an injection port, and a structural member extending radially from a center of the first scaffolds toward a margin of the first scaffold and is configured to provide resistance to expansion of the scaffold such that the structural member become slightly bent near their free end upon expansion of the scaffold, wherein the structural member comprise a portion of the scaffold that is thicker than another portion of the scaffold which provide resistance to expansion of the scaffold, the scaffolds each comprising at least one channel, wherein the at least two channels are in fluid communication;
- expanding the channels of the scaffolds with an injectable fluid;
- and;
- solidifying the injectable fluid in the channels of the scaffolds whereby the occluder transitions from the compliant occluder to a rigid occluder to repair the intracardiac defect.
1 more element
Dependencies are inferred from the claim text.