Patent foramen ovale (PFO) closure device with linearly elongating petals
First Claim
1. A device for occluding a defect in a body, the occluder comprising:
- an occluder body that is reconfigurable between an elongated tubular cylindrical delivery configuration and a shortened deployed configuration, the occluder body comprising a plurality of filaments, each filament of the plurality of filaments comprising (i) a proximal end portion, (ii), a distal end portion, (iii) a central portion disposed between the proximal end portion and the distal end portion, (iv) a proximal free segment disposed between the proximal end portion and the central portion, and (v) a distal free segment disposed between the central portion and the distal end portion,the proximal end portion of each filament of the plurality of filaments being bonded together and aligned to form the proximal end portion and defining a generally tubular cylindrically shaped joint, the central portion of each filament of the plurality of filaments being bonded together and aligned to form the central portion and defining a generally tubular cylindrically shaped joint, and the distal end portion of each filament of the plurality of filaments being bonded together and aligned to form the distal end portion and defining a generally tubular cylindrically shaped joint,wherein, when the occluder body is in the deployed configuration, the proximal free segment of each filament of the plurality of filaments forms a proximal loop, and the distal free segment of each filament of the plurality of filaments forms a distal loop,wherein each of the proximal loops of each filament of the plurality of filaments overlaps with adjacent proximal loops of the plurality of filaments at a discrete location within an occlusive proximal face formed by the proximal loops,wherein each of the distal loops of each filament of the plurality of filaments overlaps with adjacent distal loops of the plurality of filaments at a discrete location within an occlusive distal face formed by the distal loops,wherein the occlusive distal face and the occlusive proximal face cooperate to occlude the defect and wherein each filament of the plurality of filaments comprises a discrete wire.
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Accused Products
Abstract
The present invention provides a device for occluding an anatomical aperture, such as an atrial septal defect (ASD) or a patent foramen ovale (PFO). The occluder includes two sides connected by a central tube. In some embodiments, the occluder is formed from filaments that are joined together to define a substantially cylindrical form with openings defining struts. Upon the application of force, the struts deform into loops. The loops may be of various shapes, sizes, and configurations, and, in at least some embodiments, the loops have rounded peripheries. The occluder further includes a catch system that maintains its deployed state in vivo. When the occluder is deployed in vivo, the two sides are disposed on opposite sides of the septal tissue surrounding the aperture and the catch system is engaged so that the occluder closes the aperture.
460 Citations
10 Claims
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1. A device for occluding a defect in a body, the occluder comprising:
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an occluder body that is reconfigurable between an elongated tubular cylindrical delivery configuration and a shortened deployed configuration, the occluder body comprising a plurality of filaments, each filament of the plurality of filaments comprising (i) a proximal end portion, (ii), a distal end portion, (iii) a central portion disposed between the proximal end portion and the distal end portion, (iv) a proximal free segment disposed between the proximal end portion and the central portion, and (v) a distal free segment disposed between the central portion and the distal end portion, the proximal end portion of each filament of the plurality of filaments being bonded together and aligned to form the proximal end portion and defining a generally tubular cylindrically shaped joint, the central portion of each filament of the plurality of filaments being bonded together and aligned to form the central portion and defining a generally tubular cylindrically shaped joint, and the distal end portion of each filament of the plurality of filaments being bonded together and aligned to form the distal end portion and defining a generally tubular cylindrically shaped joint, wherein, when the occluder body is in the deployed configuration, the proximal free segment of each filament of the plurality of filaments forms a proximal loop, and the distal free segment of each filament of the plurality of filaments forms a distal loop, wherein each of the proximal loops of each filament of the plurality of filaments overlaps with adjacent proximal loops of the plurality of filaments at a discrete location within an occlusive proximal face formed by the proximal loops, wherein each of the distal loops of each filament of the plurality of filaments overlaps with adjacent distal loops of the plurality of filaments at a discrete location within an occlusive distal face formed by the distal loops, wherein the occlusive distal face and the occlusive proximal face cooperate to occlude the defect and wherein each filament of the plurality of filaments comprises a discrete wire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification