Inwardly-bowed tricuspid annuloplasty ring
First Claim
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1. A prosthetic tricuspid annuloplasty ring, comprising:
- a ring body generally arranged about a flow axis along an inflow-outflow direction, the ring body being overall convex and asymmetric in plan view looking along the axis and having at least three inflection points around the ring periphery in plan view and extending around the periphery in a single elongated member without branches and lying generally perpendicular to the axis, wherein the ring is configured to contact and support the interior of the tricuspid annulus, and defines in plan view, in sequence, a first free end, a first septal segment, an anterior segment adapted to attach to the tricuspid annulus adjacent the anterior leaflet and spanning an equivalent peripheral distance, a posterior segment adapted to attach to the tricuspid annulus adjacent the posterior leaflet and spanning an equivalent peripheral distance, and a second septal segment adapted to attach to the tricuspid annulus adjacent the septal leaflet, wherein each of the anterior, posterior and second septal segments is generally concave inward, and a second free end separated across a gap from the first free end such that the ring is discontinuous, and wherein two of the inflection points are in the anterior segment.
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Abstract
A prosthetic tricuspid remodeling annuloplasty ring having two free ends and at least one inward bow to help reduce chordal tethering. The ring may have segments corresponding to the anterior, posterior and septal leaflets, with inward bows located adjacent one, two or all leaflets. Convex corners separate the concave inward bows, with inflection points therebetween. The ring has a semi-rigid inner body covered by fabric or a suture interface such as silicone and fabric.
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Citations
21 Claims
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1. A prosthetic tricuspid annuloplasty ring, comprising:
a ring body generally arranged about a flow axis along an inflow-outflow direction, the ring body being overall convex and asymmetric in plan view looking along the axis and having at least three inflection points around the ring periphery in plan view and extending around the periphery in a single elongated member without branches and lying generally perpendicular to the axis, wherein the ring is configured to contact and support the interior of the tricuspid annulus, and defines in plan view, in sequence, a first free end, a first septal segment, an anterior segment adapted to attach to the tricuspid annulus adjacent the anterior leaflet and spanning an equivalent peripheral distance, a posterior segment adapted to attach to the tricuspid annulus adjacent the posterior leaflet and spanning an equivalent peripheral distance, and a second septal segment adapted to attach to the tricuspid annulus adjacent the septal leaflet, wherein each of the anterior, posterior and second septal segments is generally concave inward, and a second free end separated across a gap from the first free end such that the ring is discontinuous, and wherein two of the inflection points are in the anterior segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A prosthetic tricuspid annuloplasty ring, comprising:
a ring body generally arranged about a flow axis along an inflow-outflow direction, the ring body being overall convex and asymmetric in plan view looking along the axis but having multiple concave segments defining inward bows around the ring periphery in plan view and extending around the periphery in a single elongated member without branches and lying generally perpendicular to the axis, wherein at least one of the concave segments is between adjacent convex corners, wherein the ring is configured to contact and support the interior of the tricuspid annulus, and defines in plan view, in sequence, a first free end, a first septal segment, an anterior segment adapted to attach to the tricuspid annulus adjacent the anterior leaflet and spanning an equivalent peripheral distance, a posterior segment adapted to attach to the tricuspid annulus adjacent the posterior leaflet and spanning an equivalent peripheral distance, and a second septal segment adapted to attach to the tricuspid annulus adjacent the septal leaflet, and a second free end separated across a gap from the first free end such that the ring is discontinuous, and wherein there is one inward bow in each of the anterior segment and posterior segment. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A prosthetic tricuspid annuloplasty ring, comprising:
a ring body peripherally arranged about a flow axis in a single elongated member without branches and lying generally perpendicular to the axis and being discontinuous so as to define two free ends at a break in continuity around the ring body, wherein a plan view of the ring body along the axis is asymmetric and defines, in sequence; a first free end; a first septal segment adapted to attach to the tricuspid annulus adjacent a portion of the septal leaflet; an anterior segment adapted to attach to the tricuspid annulus adjacent the anterior leaflet and defining an inward bow segment adapted to attach to the tricuspid annulus adjacent the anterior leaflet and spanning an equivalent peripheral distance; a posterior segment adapted to attach to the tricuspid annulus adjacent the posterior leaflet and defining an inward bow adapted to attach to the tricuspid annulus adjacent the posterior leaflet and spanning an equivalent peripheral distance; a second septal segment adapted to attach to the tricuspid annulus adjacent a portion of the septal leaflet adapted to attach to the tricuspid annulus adjacent the septal leaflet; and a second free end. - View Dependent Claims (18, 19, 20, 21)
Specification