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US 12,746,006 B2Granted
Left atrial appendage closure device and method
OwnerVirender K. Sharmainventor
Life of this patent
Estimating the term…
Abstract
A device to treat a left atrial appendage (LAA) of a patient includes a tissue ingrowth member, at least one connector, a tine, and a plurality of struts connected to the tissue ingrowth member and at least one connector. A plurality of anchors extends from the tissue ingrowth member proximate the connection point of the struts to the tissue ingrowth member. The device is configured to change shape from a compressed pre-deployment configuration to at least one expanded post-deployment configuration such that the anchors puncture and lodge into cardiac tissue, occluding an ostium of the left atrial appendage.
Claims19
A method of using a device to close a left atrial appendage (LAA) in a patient, the method comprising:
- positioning the device in the LAA, wherein the device comprises a tissue ingrowth member coupled at a distal end to a first connector, a second connector, a central member having a distal end, a proximal end, and a plurality of barbs along its length, wherein the central member is rigid and wherein each of said plurality of barbs is unidirectional, wherein the distal end of the central member is positioned proximate a center of the tissue ingrowth member and the proximal end of the central member is coupled to the second connector, and wherein the device is positioned inside the patient in a pre-deployment configuration;
- and
- expanding the device from the pre-deployment configuration to a first post-deployment configuration, wherein in said first post-deployment configuration, the tissue ingrowth member comprises a first portion having a first shape, a distal end and a proximal end and a second portion having a second shape, a distal end and a proximal end, wherein the distal end of the first portion is coupled with the first connector, the proximal end of the first portion is coupled with the distal end of the second portion and the proximal end of the second portion is coupled with the second connector, and when in said first post-deployment configuration, the device has at least one first dimension and applies a first pressure against a cardiac wall;
- and
- expanding the device from the first post-deployment configuration to a second post-deployment configuration, wherein, when in said second post-deployment configuration, the first shape of the first portion changes to a third shape and the second shape of the second portion changes to a fourth shape, wherein each of the first shape, second shape, third shape, and fourth shape are different, and wherein the central member is configured to pass through said center of the tissue ingrowth member and said plurality of barbs is configured to engage and lock with said center of the tissue ingrowth member to lock said device in the second post-deployment configuration.
2 more elements
A method of using a device to close a left atrial appendage (LAA) in a patient, the method comprising:
- positioning the device in the LAA, wherein the device comprises a tissue ingrowth member coupled at a distal end to a first connector, a second connector, a central member having a distal end and a proximal end, and one or more phalanges coupled with the distal end of the central member, wherein the distal end of the central member is positioned proximate a center of the tissue ingrowth member and the proximal end of the central member is coupled to the second connector, and wherein the device is positioned inside the patient in a pre-deployment configuration;
- and
- expanding the device from the pre-deployment configuration to a first post-deployment configuration, wherein in said first post-deployment configuration, the tissue ingrowth member comprises a first portion having a first shape, a distal end and a proximal end and a second portion having a second shape, a distal end and a proximal end, wherein the distal end of the first portion is coupled with the first connector, the proximal end of the first portion is coupled with the distal end of the second portion and the proximal end of the second portion is coupled with the second connector, and when in said first post-deployment configuration, the device has at least one first dimension and applies a first pressure against a cardiac wall;
- and
- expanding the device from the first post-deployment configuration to a second post-deployment configuration, wherein, when in said second post-deployment configuration, the first shape of the first portion changes to a third shape and the second shape of the second portion changes to a fourth shape, wherein each of the first shape, second shape, third shape, and fourth shape are different, and wherein expanding the device from the pre-deployment configuration to the first post-deployment configuration to the second post-deployment configuration comprises changing a configuration of the one or more phalanges from a first position in the first post-deployment configuration to a second position in the second post-deployment configuration.
2 more elements
Dependencies are inferred from the claim text.