Epicardial clip

• US 8,647,254 B2
• Filed: 07/01/2008
• Issued: 02/11/2014
• Est. Priority Date: 07/01/2008
• Status: Active Grant

• Current Assignee: Maquet Cardiovascular LLC (Getinge AB)
• Original Assignee: Maquet Cardiovascular LLC (Getinge AB)
• Inventors: Callas, Peter Tachi, Lombardi, Pierluca, Stewart, Michael C., Lau, Liming, Juravic, Mark S., Anderson, Evan, Lamberti, Joe, Chin, Albert K., Wang, Tammy
• Primary Examiner(s): Matthews, Christine
• Assistant Examiner(s): Reddy, Sunita
• Application Number:
  US12/166,247
• Publication Number:
  US 20100004504A1
• Time in Patent Office: 2,051 Days
• Field of Search: 128/898, 623/2.11, 623/2.12, 623/2.2, 623/2.34, 623/2.38, 623 236- 237, 600/37
• US Class Current: 600/37
• CPC Class Codes: A61F 2/2442 Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
• CPC Class Codes: A61F 2/2451 Inserts in the coronary sinus for correcting the valve shape
• CPC Class Codes: A61F 2/2478 Passive devices for improving the function of the heart muscle, i.e. devices for reshaping the external surface of the heart, e.g. bags, strips or bands
• CPC Class Codes: A61F 2/2481 Devices outside the heart wall, e.g. bags, strips or bands
• CPC Class Codes: A61F 2/2496 Devices for determining the dimensions of the prosthetic valve to be implanted, e.g. templates, sizers

Abstract

An epicardial clip for reshaping the annulus of the mitral valve of a heart. The epicardial clip includes a curved member having an anterior segment configured to be positioned in the transverse sinus of the heart, a posterior segment configured to be positioned on the posterior side of the heart, such as on or inferior to the atrioventricular groove, and a lateral segment extending between the anterior segment and the posterior segment. The lateral segment includes a curve such that the first end of the member is positioned at or above the plane of the mitral valve and the second end of the member is positioned at or below the plane of the mitral valve.

Claims

1. An epicardial clip for placement on the epicardial surface of a heart in order to reshape the annulus of the mitral valve of the heart, the mitral valve lying in a plane between the left atrium and the left ventricle of the heart, the anatomy of the heart includes an aorta, a pulmonary trunk, a superior vena cava, a transverse sinus, and an atrioventricular groove, the epicardial clip comprising:

a curved member having an anterior segment, a posterior segment and a lateral segment extending between the anterior segment and the posterior segment;

wherein the anterior segment is configured and dimensioned to at least partially occupy the transverse sinus epicardially and end at a location short of overlying the right atrium;

the lateral segment being curved so that the anterior segment can be positioned on or above a plane in which the mitral valve is located, which allows the posterior segment to be positioned on or below the plane in which the mitral valve is located, and below a position of the anterior segment;

wherein rotation of said epicardial clip about a longitudinal axis of said anterior segment allows said posterior segment to be moved toward or away from the apex of the heart while said anterior segment remains in full contact with a base of the transverse sinus, on the epicardial surface of the heart at a location superior of an anterior annulus of the mitral valve; and

wherein said epicardial clip is non-flexible, having a permanent configuration which may not be readily bent to an ad hoc configuration.

2. The epicardial clip of claim 1, wherein the component of the anterior segment includes a double-arm member including a first arm and a second arm forming a U-shape.

3. The epicardial clip of claim 1, wherein the component of the anterior segment includes a superior arm portion connected to an inferior arm portion.

4. The epicardial clip of claim 3, wherein the inferior arm portion includes an elastic band stretched between a first anchor point and a second anchor point.

5. The epicardial clip of claim 3, wherein the inferior arm portion is configured to be positioned at an inferior aspect of the transverse sinus.

6. The epicardial clip of claim 5, wherein the superior arm portion is configured to be positioned at a superior aspect of the transverse sinus.

7. The epicardial clip of claim 1, wherein the curved member includes a coupler for coupling the anterior segment to the lateral segment.

8. The epicardial clip of claim 7, wherein the coupler has an imaginary longitudinal axis, and wherein the anterior segment is rotatable about the imaginary longitudinal axis of the coupler.

9. The epicardial clip of claim 8, wherein the anterior segment is rotatable through an angle of at least 30 degrees.

10. The epicardial clip of claim 8, wherein the anterior segment is rotatable through an angle of at least 60 degrees.

11. The epicardial clip of claim 1, wherein said epicardial clip is configured such that the anterior segment is configured to be positioned in the transverse sinus and the posterior segment is configured to be positioned at or below the atrioventricular groove.

12. The epicardial clip of claim 1, wherein the component of the anterior segment lies in an imaginary plane and the posterior segment lies in another imaginary plane, wherein the component of the anterior segment does not lie in the imaginary plane of the posterior segment.

13. The epicardial clip of claim 1, wherein the posterior segment includes an over-mold covering.