Set of annuloplasty devices with varying anterior-posterior ratios and related methods

• US 8,961,598 B2
• Filed: 08/09/2011
• Issued: 02/24/2015
• Est. Priority Date: 01/25/2008
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Vanermen, Hugo, Ryan, Timothy R., Gloss, Michael A., Kuehn, Stephen
• Primary Examiner(s): Sweet, Thomas J
• Assistant Examiner(s): Mathew, Seema
• Application Number:
  US13/206,355
• Publication Number:
  US 20120022643A1
• Time in Patent Office: 1,295 Days
• Field of Search: 623 236- 237
• US Class Current: 623/2.37
• CPC Class Codes: A61B 5/1076 for measuring dimensions inside body cavities, e.g. using catheters A61B3/1005 takes precedence
• CPC Class Codes: A61F 2/2448 D-shaped rings
• CPC Class Codes: A61F 2/2496 Devices for determining the dimensions of the prosthetic valve to be implanted, e.g. templates, sizers

Abstract

Described is a set of at least two annuloplasty devices having a particular size that corresponds to an inter-trigonal or inter-commissural distance of a heart valve annulus, wherein the at least two annuloplasty devices have different anterior-posterior ratios. Also, described is a kit for annuloplasty repair of a heart valve annulus including a plurality of annuloplasty devices each comprising one of a plurality of different sizes, wherein the different sizes each correspond to a different inter-trigonal or inter-commissural distance of a heart valve annulus, and for each of the plurality of different sizes there are at least two devices each having the same size but having different anterior-posterior ratios. Additionally, a method of choosing an annuloplasty device for implantation in a valve annulus is described.

Claims

1. A method of choosing an annuloplasty device for implantation in a valve annulus, the method comprising the steps of:

measuring the inter-trigonal or inter-commissural distance of the valve annulus;

providing at least two annuloplasty devices that each have a major axis length corresponding s-to the measured inter-trigonal distance of the valve annulus, and that each have a different anterior-posterior ratio corresponding to restricting, remodeling or enlarging the valve annulus; and

choosing one of the at least two annuloplasty devices depending upon the anterior-posterior ratio desired.

2. The method of claim 1, wherein the at least two annuloplasty devices comprise three annuloplasty devices, a first device has an anterior-posterior ratio of about 0.55, a second device has an anterior-posterior ratio of about 0.75 and a third device has an anterior-posterior ratio of about 0.85.

3. The method of claim 2, wherein the second and third devices comprise a continuous ring having a saddle shape, an anterior segment that corresponds to the anterior aspect of the annulus and a posterior segment corresponding to the posterior aspect of the annulus, the anterior segment is flexible, and the posterior segment is rigid or semi-rigid, and the first device comprises a continuous ring that is rigid or semi-rigid and has a saddle shape.

4. A method of choosing an annuloplasty device for implantation in a valve annulus, the method comprising the steps of:

measuring the inter-trigonal or inter-commissural distance of the valve annulus;

providing at least two annuloplasty devices that each have a size that corresponds to the measured inter-trigonal distance of the valve annulus, and that each have a different anterior-posterior ratio from the group comprising an anterior-posterior ratio for enlarging the heart valve annulus, an anterior-posterior ratio for restricting the heart valve annulus, and an anterior-posterior ratio for remodeling the heart valve annulus; and

choosing one of the at least two annuloplasty devices depending upon the anterior-posterior ratio desired.