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US 11,109,863 B2Granted
Grasping for tissue repair
AssigneeAbbott Cardiovascular Systems Inc.
InventorMichael F. Wei
Life of this patent
Estimating the term…
Abstract
The invention provides improved devices, systems, and methods for tissue approximation and repair at treatment sites. The invention provides devices, systems, and methods that may more successfully approximate and repair tissue by improving the capture of tissue into the devices. The invention may be a one-way mechanism that allows tissue to enter the mechanism but not easily exit, such as a leaf-spring, a protrusion, a pivoting arm and one or more frictional elements.
Claims17
A device for fixation of leaflets of a heart valve comprising:
- a delivery catheter having a distal end;
- and
- a fixation implant releasably attached to the distal end, the fixation implant comprising:
- first and second distal elements moveable between an open position and a closed position, each distal element extending outwardly from a center of the fixation implant in the open position;
- a first retaining element coupled to the first distal element and extending inwardly from the first distal element toward the center of the fixation implant in the open position, wherein the first retaining element is configured to pivot up to 180 degrees relative to the first distal element;
- a second retaining element coupled to the second distal element and extending inwardly from the second distal element toward the center of the fixation implant in the open position, wherein the second retaining element is configured to pivot up to 180 degrees relative to the second distal element;
- a first proximal element movable to capture a first leaflet of a heart valve between the first proximal element and the first retaining element;
- and
- a second proximal element moveable to capture a second leaflet of a heart valve between the second proximal element and the second retaining element,
- wherein the first and second distal elements are configured to cover the first and second retaining elements, respectively, in the closed position.
7 more elements
A fixation implant for fixation of leaflets of a heart valve comprising:
- first and second distal elements moveable between an open position and a closed position, each distal element extending outwardly from a center of the fixation implant in the open position;
- a first retaining element coupled to the first distal element and extending inwardly from the first distal element toward the center of the fixation implant in the open position, wherein the first retaining element is configured to pivot up to 180 degrees relative to the first distal element;
- a second retaining element coupled to the second distal element and extending inwardly from the second distal element toward the center of the fixation implant in the open position, wherein the second retaining element is configured to pivot up to 180 degrees relative to the second distal element;
- a first proximal element movable to capture a first leaflet of a heart valve between the first proximal element and the first retaining element;
- and
- a second proximal element moveable to capture second leaflet of a heart valve between the second proximal element and the second retaining element,
- wherein the first and second distal elements are configured to cover the first and second retaining elements respectively in the closed position.
4 more elements
A device for fixation of leaflets of a heart valve comprising:
- a delivery catheter having a distal end;
- and
- a fixation implant releasably attached to the distal end, the fixation implant comprising:
- first and second distal elements moveable between an open position and a closed position, each distal element extending outwardly from a center of the fixation implant in the open position;
- a first retaining element coupled to the first distal element and extending inwardly from the first distal element toward the center of the fixation implant in the open position, wherein the first retaining element is capable of rotating 180 degrees;
- a second retaining element coupled to the second distal element and extending inwardly from the second distal element toward the center of the fixation implant in the open position, wherein the second retaining element is capable of rotating 180 degrees;
- a first proximal element movable to capture a first leaflet of a heart valve between the first proximal element and the first retaining element;
- and
- a second proximal element moveable to capture a second leaflet of a heart valve between the second proximal element and the second retaining element,
- wherein the first and second distal elements are configured to cover the first and second retaining elements, respectively, in the closed position.
7 more elements
Dependencies are inferred from the claim text.