ADJUSTABLE SELF-LOCKING PAPILLARY MUSCLE BAND

• US 20190117399A1
• Filed: 10/22/2018
• Published: 04/25/2019
• Est. Priority Date: 10/23/2017
• Status: Active Grant

• Current Assignee: Cardiac Success Ltd.
• Original Assignee: Cardiac Success Ltd.
• Inventors: Neustadter, David
• Granted Patent: US 10,548,732 B2
• Time in Patent Office: Days
• 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 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2/2454 Means for preventing inversion of the valve leaflets, e.g. chordae tendineae prostheses
• CPC Class Codes: A61F 2/2457 Chordae tendineae prostheses
• CPC Class Codes: A61F 2/246 Devices for obstructing a leak through a native valve in a closed condition
• CPC Class Codes: A61F 2/2466 Delivery devices therefor
• CPC Class Codes: A61F 2/2487 Devices within the heart chamber, e.g. splints
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0025 Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• CPC Class Codes: A61F 2230/0065 toroidal, e.g. ring-shaped, doughnut-shaped
• CPC Class Codes: A61F 2250/001 for adjusting a diameter

Abstract

Embodiments of the present disclosure include a device for repositioning papillary muscles. The device may comprise a band configured to encircle a cluster of papillary muscles. The cluster of papillary muscles may have an outer peripheral boundary defined by the encircling band, and the band may comprise a first end and a second end. The device may further comprise an adjustable clasp coupled to a location proximate the first end of the band. The clasp may be configured to transition from an open configuration to a closed configuration to connect the second end of the band to the first end of the band, thereby forming a loop. The clasp may be selectively actuatable to adjust a length of the loop.

Claims

1. A device for repositioning papillary muscles, comprising:

a band configured to encircle a cluster of papillary muscles, the cluster having an outer peripheral boundary defined by the encircling band, wherein the band comprises a first end and a second end; and

an adjustable clasp coupled to a location proximate the first end of the band, wherein the clasp is configured to transition from an open configuration to a closed configuration to connect the second end of the band to the first end of the band, thereby forming a loop.

2. The device of claim 1, wherein:

the adjustable clasp includes a plurality of spikes protruding radially inward such that, in the closed configuration, the spikes are configured to grasp the second end of the band therebetween.

3. The device of claim 1, wherein:

the adjustable clasp is configured to be held in an open configuration by a clasp retainer ring located within the clasp; and

the adjustable clasp is configured to return to a closed configuration upon retraction of the clasp retainer ring from within the clasp.

4. The device of claim 1, wherein the adjustable clasp includes metal.

5. The device of claim 1, wherein:

the cluster includes an inner region on sides of the papillary muscles opposite the outer peripheral boundary; and

the band is configured to pull the papillary muscles toward each other such that the band contacts the outer peripheral boundary of the papillary muscles without contacting the inner region and such that the inner region is devoid of any portion of the band.

6. The device of claim 1, wherein:

the band is further configured to pull the papillary muscles toward each other, thereby decreasing a distance between opposing surfaces of the papillary muscles; and

the clasp is selectively actuatable to adjust a length of the loop.

7. The device of claim 1, wherein the adjustable clasp is further configured to fix a length of the loop such that the outer peripheral boundary of the cluster of papillary muscles reaches a predefined circumference.

8. The device of claim 1, wherein a length of the loop is adjustable over a range of at least 8 mm.

9. The device of claim 1, wherein:

at least a portion of the band includes a tube; and

the adjustable clasp is coupled inside the portion of the band that includes the tube.

10. The device of claim 1, wherein a width of the band varies along different portions of a length of the band.

11. The device of claim 1, wherein the adjustable clasp is further configured to be actuated within a heart.

12. The device of claim 1, wherein the adjustable clasp is further configured to be actuated, via a catheter, from outside of a body.

13. The device of claim 1, wherein the cluster of papillary muscles includes two or more papillary muscles within a ventricle of a heart.

14. The device of claim 1, wherein the band is further configured to be passed through a plurality of spaces among trabeculae between the papillary muscles and a wall of a ventricle.

15. A device for repositioning papillary muscles, comprising:

a band configured to encircle a cluster of papillary muscles, the cluster having an outer peripheral boundary defined by the encircling band, wherein the band comprises a first end and a second end; and

an adjustable clasp coupled to a location proximate the first end of the band, wherein;

the clasp is configured to transition from an open configuration to a closed configuration to connect the second end of the band to the first end of the band, thereby forming a loop; and

the clasp is selectively actuatable to adjust a length of the loop.

16. The device of claim 15, wherein the length of the loop is adjustable over a range of at least 8 mm.

17. The device of claim 15, wherein:

the adjustable clasp includes a plurality of spikes protruding radially inward such that, in the closed configuration, the spikes are configured to grasp the second end of the band therebetween.

18. The device of claim 15, wherein:

the adjustable clasp is configured to be held in an open configuration by a clasp retainer ring located within the clasp; and

the adjustable clasp is configured to return to a closed configuration upon retraction of the clasp retainer ring from within the clasp.

19. The device of claim 15, wherein:

the cluster includes an inner region on sides of the papillary muscles opposite the outer peripheral boundary;

the band is configured to pull the papillary muscles toward each other such that the band contacts the outer peripheral boundary of the papillary muscles without contacting the inner region and such that the inner region is devoid of any portion of the band.

20. The device of claim 15, wherein the band is further configured to be passed through a plurality of spaces among trabeculae between the papillary muscles and a wall of a ventricle.