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.
Claims15
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 attached to the first distal element;
- a second retaining element attached to the second distal element;
- a first proximal element movable to capture a first leaflet of the heart valve between the first proximal element and the first retaining element;
- and
- a second proximal element moveable to capture a second leaflet of the 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.
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 attached to the first distal element;
- a second retaining element attached to the second distal element;
- a first proximal element movable to capture a first leaflet of the heart valve between the first proximal element and the first retaining element;
- and
- a second proximal element moveable to capture second leaflet of the 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.
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 including a fabric covering and defining a concave shape, each distal element extending outwardly from a center of the fixation implant when in the open position;
- a first retaining element attached to the first distal element and disposed within the concave shape of the first distal element when in the closed position;
- a second retaining element attached to the second distal element and disposed within the concave shape of the second distal element when in the closed position;
- a first proximal element movable to capture a first leaflet of the heart valve between the first proximal element and the first retaining element;
- and
- a second proximal element moveable to capture second leaflet of the heart valve between the second proximal element and the second retaining element.
Dependencies are inferred from the claim text.