Apparatus for implanting devices in atrial appendages
First Claim
1. A method for implanting a device in an atrial appendage, said method comprising:
- providing a catheterization apparatus comprising;
a tube assembly for providing a passageway for movement of said device through vasculature to said atrial appendage, said assembly comprising at least;
an outer tube;
a shaft for transporting said device through said assembly; and
a positioning guide for engaging at least a portion of an atrial wall for mechanical support of portions of said assembly;
percutaneously advancing said tube assembly through a blood vessel to establish a passageway to an atrium;
introducing said positioning guide to a location near an ostium of said atrial appendage;
deploying said positioning guide to engage said portion of an atrial wall for mechanical support;
using said shaft to transport said device through said passageway to a position within said atrial appendage; and
releasing said device.
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Accused Products
Abstract
The invention provides a delivery system for placing devices in atrial appendages. The system includes a catheterization apparatus having a tubular structure with one or more nested tubes, wires, and shafts. The tubes establish a passageway for moving a device through a body'"'"'s vasculature and heart into an atrial appendage. An expandable positioning guide is disposed on the distal end of a tube passing through the apparatus. The positioning guide is expanded in situ to engage atrial wall surfaces proximate to the atrial appendage for mechanical support. The deployed positioning guide mechanically stabilizes the device delivery passageway. A shaft passing through the tubes transports the device through the passageway to the atrial appendage.
The system includes catheterization apparatus for transseptal delivery of the devices. An outer tube or sheath in the apparatus is used to penetrate and traverse the septum. An expandable securement device is disposed toward an end of the sheath. The securement device is expanded in situ to engage surface portions of the traversed septum to restrain further inadvertent movement of the septum-traversing sheath.
466 Citations
13 Claims
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1. A method for implanting a device in an atrial appendage, said method comprising:
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providing a catheterization apparatus comprising; a tube assembly for providing a passageway for movement of said device through vasculature to said atrial appendage, said assembly comprising at least; an outer tube; a shaft for transporting said device through said assembly; and a positioning guide for engaging at least a portion of an atrial wall for mechanical support of portions of said assembly; percutaneously advancing said tube assembly through a blood vessel to establish a passageway to an atrium; introducing said positioning guide to a location near an ostium of said atrial appendage; deploying said positioning guide to engage said portion of an atrial wall for mechanical support; using said shaft to transport said device through said passageway to a position within said atrial appendage; and releasing said device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification