Degenerative Valvular Disease Specific Annuloplasty Rings
First Claim
1. A method of manufacturing an annuloplasty ring, comprising:
- referencing the characteristic shape of the annulus of a heart valve afflicted by a degenerative heart valve disease; and
forming the annuloplasty ring with a size and shape that corresponds to the characteristic shape of the annulus.
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Accused Products
Abstract
Annuloplasty rings optimally sized to take into account more of the common degenerative valve pathologies. Each ring has a structural ring body with a shape that complies with predicted shapes of degenerative valvular diseases, such as fibroelastic deficiency (FED), Marfan'"'"'s or Barlow'"'"'s. The predicted shapes are obtained through careful echocardiographic and intraoperative measurements, and often differ for different annulus orifice sizes. For instance, in mitral rings the larger rings have larger minor axis and oblique axis dimensions relative to their major axis dimensions, and are more circular as opposed to D-shaped. The rings may also be three-dimensional and the relative heights around the rings may change for different sized rings. A mitral ring may have a higher anterior saddle relative to a posterior saddle, with the relative heights varying across the ring sizes. The ring may have varying flexibility around the ring periphery which also changes for different ring sizes. A bulge on the sewing cuff forms a step on the outflow side for ease of suturing, which may be indicated by a suture line.
99 Citations
23 Claims
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1. A method of manufacturing an annuloplasty ring, comprising:
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referencing the characteristic shape of the annulus of a heart valve afflicted by a degenerative heart valve disease; and forming the annuloplasty ring with a size and shape that corresponds to the characteristic shape of the annulus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An annuloplasty ring for correcting a patient'"'"'s valve annulus afflicted by a degenerative heart valve disease, comprising:
a ring body defining a periphery, the ring body having a size and shape that corresponds to the characteristic shape of the heart valve afflicted by the degenerative heart valve disease for that annulus size. - View Dependent Claims (13, 15, 16, 19, 20, 21, 22, 23)
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14. The annuloplasty ring of claim 14, wherein the patient'"'"'s valve annulus is the mitral valve annulus, and the measurements include transverse diameter, antero-posterior diameter, and at least three oblique dimensions extending from the geometric center of the annulus to the posterior aspect of the annulus.
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17. The annuloplasty ring of claim 17, wherein the size and shape of the ring body addresses the problems of excess tissue and related valve dysfunction commonly seen in degenerative valvular diseases.
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18. The annuloplasty ring of claim 18, wherein the size and shape of the ring body conforms to the annulus shape for Barlow'"'"'s disease for rings having a size of 34 mm or larger.
Specification