Mitral and Tricuspid Annuloplasty Rings
First Claim
1. A mitral annuloplasty ring, comprising:
- an inner core and an outer band located around the outside of the inner core for anchoring the ring to a mitral annulus;
the ring having an anterior region and a posterior region opposite the anterior region, and two side regions between the anterior and posterior regions, the ring having a vertical dimension extending between the anterior region and posterior region and a transverse dimension extending between the side regions, wherein the transverse dimension is greater than the vertical dimension; and
wherein the ring is saddle-shaped and describes a three-dimensional path that gradually curves up at the anterior and posterior regions and down at the side regions, and wherein the ring is asymmetric with the two side regions curving down to different heights.
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Abstract
A mitral annuloplasty ring with an inner core and an outer band located therearound. The ring has an anterior region, a posterior region opposite the anterior region, and two side regions therebetween. A cross-sectional width dimension of the outer band is greater in the posterior region of the ring than in the anterior region. A cross-sectional width dimension of a semi-flexible core is thinner in the anterior and posterior regions than in the side regions so that the mitral ring is more rigid in bending in the anterior-posterior direction. A tricuspid annuloplasty ring of the invention has an inner core and an outer band located therearound. The inner core has an anterior region separated across a gap from a septal region, and a posterior region. A cross-sectional width dimension of the outer band is greater in the septal region than either the anterior or posterior regions.
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Citations
20 Claims
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1. A mitral annuloplasty ring, comprising:
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an inner core and an outer band located around the outside of the inner core for anchoring the ring to a mitral annulus; the ring having an anterior region and a posterior region opposite the anterior region, and two side regions between the anterior and posterior regions, the ring having a vertical dimension extending between the anterior region and posterior region and a transverse dimension extending between the side regions, wherein the transverse dimension is greater than the vertical dimension; and wherein the ring is saddle-shaped and describes a three-dimensional path that gradually curves up at the anterior and posterior regions and down at the side regions, and wherein the ring is asymmetric with the two side regions curving down to different heights. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A mitral annuloplasty ring, comprising:
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a semi-flexible metallic inner core having an anterior region and a posterior region opposite the anterior region, and two side regions between the anterior and posterior regions, and wherein trigones are defined at the junction between the anterior region and the two side regions, the ring having a vertical dimension extending between the anterior region and posterior region and a larger transverse dimension extending between the side regions, and wherein the radial width of the core has a maximum at the side regions that is greater than both the anterior and posterior regions; and an outer band located around the outside of the inner core for anchoring the ring to a mitral annulus. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A tricuspid annuloplasty ring, comprising:
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a discontinuous inner core having a peripheral shape that mimics the shape of the healthy tricuspid annulus, including, as looking in top plan view at the core moving clockwise around the core from a gap between two ends thereof, an anterior region a posterior region and a septal region, with the anterior region separated across the gap from the septal region; and an outer band located around the outside of the inner core for anchoring the ring to a tricuspid annulus, wherein a width dimension of the outer band as seen in cross-section through the ring is greater in the septal region than either the anterior region or posterior region.
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- 17. The tricuspid annuloplasty ring of claim 17, wherein the inner core defines a spiral shape.
Specification