SEGMENTED RING PLACEMENT

• US 20090259307A1
• Filed: 06/15/2009
• Published: 10/15/2009
• Est. Priority Date: 12/05/2006
• Status: Active Grant

• Current Assignee: Valtech Cardio Ltd (Edwards Lifesciences Corporation)
• Original Assignee: Valtech Cardio Ltd (Edwards Lifesciences Corporation)
• Inventors: GROSS, AMIR, LILACH, NIR, ELIACHAR, ELIAHU, MEYER-BRODNITZ, GIDEON, MOSAIUF, ARNON, BEINART, IFTAH, GROSSFELD, RAM, GOLOM, DMITRY
• Granted Patent: US 7,988,725 B2
• Time in Patent Office: Days
• US Class Current: 623/2.360
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 2017/00783 Valvuloplasty
• CPC Class Codes: A61B 2017/0649 Coils or spirals
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2/2466 Delivery devices therefor
• CPC Class Codes: A61F 2250/006 modular

Abstract

Apparatus is provided for repairing a valve of a heart of a patient which includes an annulus and at least first and second leaflets. The apparatus includes an annuloplasty structure, a plurality of tissue anchors, and a plurality of flexible longitudinal guide members removably coupled to the structure. Each of the guide members is configured to facilitate anchoring of the annuloplasty structure to the annulus of the patient by a respective one of the anchors. The guide members are configured to be advanced toward the annulus simultaneously with the annuloplasty structure. Other embodiments are also described.

Claims

1. Apparatus for repairing a valve of a heart of a patient, the valve including an annulus and at least first and second leaflets, comprising:

an annuloplasty structure;

a plurality of tissue anchors; and

a plurality of flexible longitudinal guide members removably coupled to the structure, wherein;

each of the guide members is configured to facilitate anchoring of the annuloplasty structure to the annulus of the patient by a respective one of the anchors, and

the guide members are configured to be advanced toward the annulus simultaneously with the annuloplasty structure.

2. The apparatus according to claim 1, wherein the annuloplasty structure comprises an annuloplasty ring.

3. The apparatus according to claim 1, wherein the annuloplasty structure comprises a partial annuloplasty ring.

4. The apparatus according to claim 1, wherein a respective one of the plurality of anchors is disposed at a distal end of each one of the plurality of guide members, and wherein each one of the plurality of anchors is configured to be screwed into the annulus in response to a rotational force applied to a proximal end of the respective guide member.

5. The apparatus according to claim 1, wherein the plurality of longitudinal guide members comprises a respective plurality of sutures.

6. The apparatus according to claim 1, wherein the plurality of longitudinal guide members comprises a respective plurality of wires.

7. The apparatus according to claim 1, wherein the annuloplasty structure is configured for transcatheter advancement toward the heart of the patient.

8. The apparatus according to claim 1, wherein the annuloplasty structure comprises at least first and second discrete segments of an annuloplasty ring.

9. The apparatus according to claim 8, wherein:

each of the first and second discrete segments is shaped to define at least one longitudinal lumen of the respective segment,

the apparatus further comprises at least a first and a second control wire, each control wire being configured for sliding advancement through the lumens of both the first and second segments,

the first control wire is configured to control a relative disposition of a first end of the first segment and a first end of the second segment, and

the second control wire is configured to control a relative disposition of a second end of the first segment and a second end of the second segment.

10. The apparatus according to claim 9, wherein the first and second segments are configured for transcatheter advancement toward the heart of the patient.

11. The apparatus according to claim 9, wherein the first and second segments are configured for simultaneous advancement toward the heart of the patient.

12. The apparatus according to claim 9, wherein the first and second control wires are configured to control a relative disposition of the first and second segments.

13. The apparatus according to claim 12, wherein the first and second control wires are configured to separate the first and second segments.

14. The apparatus according to claim 12, wherein the first and second control wires are configured to facilitate positioning of the first and second segments along the annulus.

15. The apparatus according to claim 12, wherein the first and second segments are configured to be advanced toward an atrium of the heart of the patient in a generally straight configuration thereof, and wherein the first and second control wires are configured to pull the first and second segments into a curved configuration.

16. The apparatus according to claim 12,

wherein the first and second segments are configured to be advanced toward the atrium of the heart of the patient in a generally straight configuration, the straight configuration defining a longitudinal axis of the respective first and second segments,

wherein at least a portion of the first and second segments is shaped to define one or more compressible units, and

wherein the compressible units are configured to be compressed in parallel with the longitudinal axis of the respective segments.

17. The apparatus according to claim 16, wherein the compressible units are configured to be compressed in response to an application of a pulling force to the first and second control wires.

18. The apparatus according to claim 16, wherein the first control wire is configured to compress the first segment at least in part in response to an application of a pulling force to at least a portion of the first control wire, and wherein the second control wire is configured to compress the second segment at least in part in response to an application of a pulling force to at least a portion of the second control wire.

19. The apparatus according to claim 9, further comprising first and second adjustment wires, coupled to the first and second control wires, respectively, wherein the first adjustment wire is coupled to the first control wire at a first junction between the first and second segments, and wherein the second adjustment wire is coupled to the second control wire at a second junction between the first and second segments.

20. The apparatus according to claim 19, wherein the adjustment wires are configured to facilitate aligning of the first and second segments with the annulus by separating the segments.

21. The apparatus according to claim 19, wherein the adjustment wires are configured to facilitate aligning of the first and second segments with the annulus by elevating portions of the first and second segments.

22. The apparatus according to claim 1, wherein the annuloplasty structure is shaped to define a lateral wall having first and second portions, and to provide a plurality of channels, wherein each channel extends from the first portion of the lateral wall to the second portion of the lateral wall of the structure.

23. The apparatus according to claim 22, wherein each one of the plurality of anchors is configured to be advanced through a respective one of the plurality of channels and subsequently to be anchored to the annulus of the patient while the plurality of guide members are disposed within the body of the patient.

24. The apparatus according to claim 22, further comprising a plurality of bars, wherein each one of the plurality of bars is configured to be disposed within a respective one of the plurality of channels.

25. The apparatus according to claim 24, wherein each one of the plurality of bars is disposed within the respective channel substantially perpendicular to an axis of the channel that extends from the first portion of the lateral wall to the second portion of the lateral wall of the structure.

26. The apparatus according to claim 24, wherein each one of the plurality of guide members is configured to be removably coupled to a respective one of the plurality of bars.

27. The apparatus according to claim 26, wherein the each one of the plurality of anchors is configured to be advanced along a respective one of the plurality of guide members from a site outside the body of the patient while the guide member is disposed within the body of the patient.

28. The apparatus according to claim 27, wherein each one of the plurality of guide members is configured to be decoupled from the respective bar subsequent to the anchoring of the respective anchor to the annulus.

29. The apparatus according to claim 28, wherein each anchor comprises a helical element configured to be corkscrewed at least in part into the annulus of the patient.

30. The apparatus according to claim 29, wherein the helical element is shaped to define at least two adjacent distal rotational subunits and at least two adjacent proximal rotational subunits, and wherein a distance between the two adjacent distal rotational subunits is greater than a distance between the two adjacent proximal rotational subunits.

31. The apparatus according to claim 30, wherein the distance between the distal rotational subunits enables the distal rotational subunits to be corkscrewed around the bar and subsequently into the annulus of the patient.

32. The apparatus according to claim 30, wherein the distance between the proximal rotational subunits restricts the proximal rotational subunits from being corkscrewed around the bar and into the annulus of the patient.