Delivery systems and methods for PFO closure device with two anchors
First Claim
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1. A cardiac device for the occlusion of a septal defect occurring in the heart, said device comprising:
- a substantially cylindrical proximal anchor member for deployment proximate a first side of a septal defect in the heart, the proximal anchor having a first end, a second end and a side surface;
a substantially cylindrical distal anchor member for deployment proximate a second side of the septal defect in the heart, the distal anchor having a first end, a second end and a side surface;
a flexible connector connecting to the proximal and distal anchor members at the side surfaces thereof;
wherein the flexible connector is a quadrilateral having a proximal side and a distal side, in which the proximal side connects to the proximal anchor member and the distal side connects to the distal anchor member; and
a string connecting the second end of the proximal anchor to the second end of the distal anchor.
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Abstract
A device closes septal openings, such as a patent foramen ovale (PFO). The device includes two anchors and a flexible connector. Tension applied to one or more strings attached to the device causes the device to collapse into a reduced profile form for withdrawal into a delivery catheter, thereby facilitating retrieval of the device after insertion into a septal opening.
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Citations
11 Claims
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1. A cardiac device for the occlusion of a septal defect occurring in the heart, said device comprising:
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a substantially cylindrical proximal anchor member for deployment proximate a first side of a septal defect in the heart, the proximal anchor having a first end, a second end and a side surface; a substantially cylindrical distal anchor member for deployment proximate a second side of the septal defect in the heart, the distal anchor having a first end, a second end and a side surface; a flexible connector connecting to the proximal and distal anchor members at the side surfaces thereof; wherein the flexible connector is a quadrilateral having a proximal side and a distal side, in which the proximal side connects to the proximal anchor member and the distal side connects to the distal anchor member; and a string connecting the second end of the proximal anchor to the second end of the distal anchor. - View Dependent Claims (2, 3)
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4. A cardiac device for the occlusion of a septal defect occurring in the heart, said device comprising:
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a substantially cylindrical proximal anchor member for deployment proximate a first side of a septal defect in the heart, the proximal anchor having a first end, a second end and a side surface; a substantially cylindrical distal anchor member for deployment proximate a second side of the septal defect in the heart, the distal anchor having a first end, a second end and a side surface; a flexible connector connecting to the proximal and distal anchor members at the side surfaces thereof, wherein the flexible connector is a quadrilateral having a proximal side and a distal side, in which the proximal side connects to the proximal anchor member and the distal side connects to the distal anchor member; and a first string attached near a midpoint of the proximal anchor and a second string attached near the first end of the proximal anchor, wherein the first and second strings facilitate retrieval of the device from its intended delivery location. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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Specification