Papillary muscle position control devices, systems, and methods

• US 10,010,419 B2
• Filed: 09/07/2015
• Issued: 07/03/2018
• Est. Priority Date: 12/15/2005
• Status: Active Grant

• Current Assignee: Georgia Tech Research Corporation (University System of Georgia)
• Original Assignee: Georgia Tech Research Corporation (University System of Georgia)
• Inventors: Yoganathan, Ajit P., Jimenez, Jorge Hernan
• Primary Examiner(s): Anderson, Gregory
• Assistant Examiner(s): LAUER, CHRISTINA C
• Application Number:
  US14/846,932
• Publication Number:
  US 20150374494A1
• Time in Patent Office: 1,030 Days
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2/2457 Chordae tendineae prostheses
• CPC Class Codes: A61F 2250/0004 adjustable

Abstract

Papillary muscle position control devices, systems, and methods are provided. According to an exemplary embodiment, a papillary muscle position control device generally comprises a first anchor, a second anchor, and a support structure. The first anchor can be configured to fixedly connect to an in situ valve of a heart ventricle. The second anchor can be configured to fixedly connect to a muscle wall of the valve. The support structure can be configured to have an adjustable length and be coupled to the first anchor and second anchor such that adjusting the length of the support structure varies a distance between the first anchor and the second anchor. Other embodiments are also claimed and described.

Claims

1. A method for treating mitral valve disease in a heart, the method comprising:

accessing a heart by minimally invasive surgery;

fixing a first anchor at a mitral valve in a heart, the first anchor including a cover comprising a suturable layer;

extending a suture of at least one support structure through a left ventricular wall, a first end of the at least one support structure secured to the first anchor;

positioning a second anchor against an exterior of the left ventricular wall, the second anchor including an aperture through which the suture slidably extends;

adjusting a length of the at least one support structure between the first anchor and the second anchor while monitoring an effect of the adjusting on the beating heart, wherein the adjusting includes sliding the suture relative to the second anchor; and

locking the suture at the second anchor, thereby fixing the length of the at least one support structure between the first anchor and the second anchor, wherein locking the suture includes engaging the suture with a locking mechanism of the second anchor.

2. The method of claim 1, wherein fixing the first anchor includes attaching the first anchor to an annulus of the mitral valve.

3. The method of claim 1, wherein extending the suture of the at least one support structure includes extending a suture of a first support structure and a suture of a second support structure.

4. The method of claim 1, wherein positioning the second anchor includes positioning a second anchor including a portion curved to cup the exterior ventricular wall.

5. A method for treating a diseased atrioventricular valve in a heart comprising:

fixing a first anchor at an atrioventricular valve in a heart;

extending a support structure through a ventricular wall, a first end of the support structure secured to the first anchor;

positioning a second anchor against an exterior of the ventricular wall, the second anchor including an aperture through which the support structure slidably extends;

adjusting a length of the support structure between the first anchor and the second anchor while the heart is beating; and

locking the support structure at the second anchor, thereby fixing the length of the support structure between the first anchor and the second anchor.

6. The method of claim 5 further comprising accessing the heart by minimally invasive surgery.

7. The method of claim 5, wherein fixing the first anchor at the atrioventricular valve includes fixing the first anchor at a mitral valve.

8. The method of claim 5, wherein fixing the first anchor includes attaching the first anchor to an annulus of the atrioventricular valve.

9. The method of claim 8, wherein attaching the first anchor includes attaching an annuloplasty ring.

10. The method of claim 5, wherein fixing the first anchor includes fixing a first anchor including a cover comprising a suturable layer.

11. The method of claim 5, wherein extending the support structure through a ventricular wall includes extending a suture of the support structure through the ventricular wall.

12. The method of claim 5, wherein extending the support structure includes extending the support structure through or proximate to a papillary muscle.

13. The method of claim 12, wherein extending the support structure through or proximate to the papillary muscle includes extending the support structure through a pad contacting the papillary muscle or inner ventricular wall.

14. The method of claim 5, wherein extending the support structure includes extending a first support structure and a second support structure.

15. The method of claim 5, wherein positioning the second anchor includes positioning a second anchor including a portion curved to cup the exterior ventricular wall.

16. The method of claim 5, wherein adjusting the length of the support structure further comprises monitoring an effect of the adjusting on the beating heart.

17. The method of claim 16, wherein monitoring the beating heart includes monitoring the beating heart by Doppler.

18. The method of claim 5, wherein locking the support structure includes engaging the support structure with a locking mechanism of the second anchor.