METHODS OF IMPLANTING AN ANNULOPLASTY RING FOR REDUCED DEHISCENCE

摘要

A prosthetic remodeling annuloplasty ring for use in tricuspid or mitral valve repairs to provide support after annuloplasty surgery. The annuloplasty ring includes a relatively rigid core extending around an axis that is discontinuous to define two free ends. A suture-permeable interface surrounding the core includes floppy regions adjacent both free ends of the core. Sutures are used to attach the annuloplasty ring to the annulus, including at least one suture through each of the floppy regions to secure the free ends of the ring and minimize the risk of ring dehiscence, or pull through of the sutures through the annulus tissue. The floppy regions may project from each free end into the gap toward each other, be radially enlarged such as paddle-like extensions, or may comprise outwardly lateral extensions at the free ends of the core.

主权项

1. A method of prosthetic annuloplasty ring implant, comprising:
providing an annuloplasty ring having a relatively rigid ring core defining a discontinuous periphery around a blood flow orifice with a first free end separated from a second free end across a gap, and a suture-permeable interface surrounding the ring core along its length, wherein the interface includes enlarged floppy regions adjacent both free ends that are larger than any other area of the interface through which sutures may be passed to secure the annuloplasty ring to a valve annulus; pre-installing sutures at a valve annulus including passing the sutures entirely through the valve annulus; threading the pre-installed sutures through the suture-permeable interface around the annuloplasty ring, including threading at least one suture through each of the enlarged floppy regions; parachuting the annuloplasty ring down the pre-installed sutures; and securing the annuloplasty ring against the valve annulus using the pre-installed sutures.