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 a rotatable actuator rod having a threaded fastener at a distal end thereof; and
a fixation device releasably coupled by a threaded connection to the threaded fastener of the actuator rod, 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 second native leaflet to capture the second native leaflet of the heart valve therebetween; and
a covering disposed on each of the first gripping element and the second gripping element.
1 Assignment
0 Petitions
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, the delivery catheter further includes a rotatable actuator rod having a threaded fastener at a distal end thereof, and a fixation device releasably coupled by a threaded connection to the threaded fastener of the actuator rod. 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 is biased toward the first arm, and the second gripping element is biased toward the second arm. The fixation device further includes a covering disposed on each of the first gripping element and the second gripping element.
585 Citations
20 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 a rotatable actuator rod having a threaded fastener at a distal end thereof; and a fixation device releasably coupled by a threaded connection to the threaded fastener of the actuator rod, 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 second native leaflet to capture the second native leaflet of the heart valve therebetween; and a covering disposed on each of the first gripping element and the second gripping element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. 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 a rotatable actuator rod having a threaded fastener at a distal end thereof; and a fixation device releasably coupled by a threaded connection to the threaded fastener of the actuator rod, the fixation device comprising; a first arm moveable between a closed position and an open position by the actuator rod; a second arm moveable between a closed position and an open position by the actuator rod; 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, 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; and a covering disposed on each of the first gripping element and the second gripping element. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification