Fixation devices, systems and methods for engaging tissue
First Claim
1. A system for fixation of native leaflets of a heart valve comprising:
- a delivery catheter having an elongated shaft, a proximal end portion and a distal end portion configured to be positioned proximate native leaflets of a heart valve from a remote vascular access point, the delivery catheter further comprising an actuator rod; and
a fixation device releasably coupled to the delivery catheter, the fixation device comprising;
a first arm moveable between a closed position and an open position by the actuator rod, wherein the first arm is configured to engage a ventricular side of a first native leaflet of the native leaflets;
a second arm moveable between a closed position and an open position by the actuator rod, wherein the second arm is configured to engage a ventricular side of a second native leaflet of the native leaflets;
a first gripping element movable relative to the first arm in the open position, the first gripping element biased toward the first arm on an atrial side of the first native leaflet to capture the first native leaflet of the heart valve therebetween;
a second gripping element movable relative to the second arm in the open position, the second gripping element biased toward the second arm on an atrial side of the first native leaflet to capture the second native leaflet of the heart valve therebetween,wherein the first gripping element and the second gripping element each comprises a plurality of barbs extending therefrom, the plurality of barbs aligned in at least one row transversely with the respective first and second gripping element; and
a covering disposed on each of the first gripping element and the second gripping element, wherein the plurality of barbs of the first gripping element and the second gripping element, respectively, protrude through the covering.
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Accused Products
Abstract
System for fixation of leaflets of a heart valve including a delivery catheter having an elongated shaft, a proximal end portion and a distal end portion configured to be positioned proximate native leaflets of a heart valve from a remote vascular access point, and a fixation device releasably coupled to the delivery catheter. The fixation device includes a first arm moveable between a closed position and an open position, and a second arm moveable between a closed position and an open position. The fixation device further includes a first gripping element movable relative to the first arm in the open position, the first gripping element biased toward the first arm to capture a first leaflet of the heart valve therebetween, and a second gripping element movable relative to the second arm in the open position, the second gripping element biased toward the second arm to capture a second leaflet of the heart valve therebetween. The first gripping element and the second gripping element each include a plurality of barbs extending therefrom, the plurality of barbs of each of the first gripping element and the second gripping element being aligned transversely in at least one row. The fixation device further includes a covering disposed on each of the first gripping element and the second gripping element, wherein the plurality of barbs of the first gripping element and the second gripping element, respectively, protrude through the covering.
600 Citations
18 Claims
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1. A system for fixation of native leaflets of a heart valve comprising:
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a delivery catheter having an elongated shaft, a proximal end portion and a distal end portion configured to be positioned proximate native leaflets of a heart valve from a remote vascular access point, the delivery catheter further comprising an actuator rod; and a fixation device releasably coupled to the delivery catheter, the fixation device comprising; a first arm moveable between a closed position and an open position by the actuator rod, wherein the first arm is configured to engage a ventricular side of a first native leaflet of the native leaflets; a second arm moveable between a closed position and an open position by the actuator rod, wherein the second arm is configured to engage a ventricular side of a second native leaflet of the native leaflets; a first gripping element movable relative to the first arm in the open position, the first gripping element biased toward the first arm on an atrial side of the first native leaflet to capture the first native leaflet of the heart valve therebetween; a second gripping element movable relative to the second arm in the open position, the second gripping element biased toward the second arm on an atrial side of the first native leaflet to capture the second native leaflet of the heart valve therebetween, wherein the first gripping element and the second gripping element each comprises a plurality of barbs extending therefrom, the plurality of barbs aligned in at least one row transversely with the respective first and second gripping element; and a covering disposed on each of the first gripping element and the second gripping element, wherein the plurality of barbs of the first gripping element and the second gripping element, respectively, protrude through the covering. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for fixation of leaflets of a heart valve comprising:
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a delivery catheter having an elongated shaft, a proximal end portion and a distal end portion configured to be positioned proximate native leaflets of a heart valve from a remote vascular access point; and a fixation device releasably coupled to the delivery catheter, the fixation device comprising; a first arm moveable between a closed position and an open position; a second arm moveable between a closed position and an open position; a gripping arrangement consisting essentially of; a first gripping element movable relative to the first arm in the open position, the first gripping element biased toward the first arm to capture a first leaflet of the heart valve therebetween; a second gripping element movable relative to the second arm in the open position, the second gripping element biased toward the second arm to capture a second leaflet of the heart valve therebetween, wherein the first gripping element and the second gripping element each comprises a plurality of barbs extending therefrom, the plurality of barbs aligned in at least one row transversely with the respective first and second gripping element; and a covering disposed on each of the first gripping element and the second gripping element, wherein the plurality of barbs of the first gripping element and the second gripping element, respectively, protrude through the covering. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification