System and a method for delivery of an annuloplasty implant

Patent metadata

Field	Value
Publication number	US-11219524-B2
Application number	US-201916296089-A
Country	US
Kind code	B2
Filing date	Mar 7, 2019
Priority date	Feb 18, 2014
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

A delivery system and method for delivery of an annuloplasty implant for a patient are disclosed. The delivery system comprises a commissure locator device for locating a commissure, comprising; an extension member, a catheter, and wherein the extension member is extendable relative the catheter for location of at least one commissure of a cardiac valve, and a coronary sinus contractor for temporary insertion into the coronary sinus (CS) and having a displacement unit being temporarily transferable to an activated state in Which the shape of the annulus Of the heart valve is modified to a modified shape to be retained by said annuloplasty implant.

First claim

What is claimed is:

1. A method of delivering an annuloplasty implant comprising,
inserting a flexible and removable elongate displacement unit in a delivery state in the coronary sinus (CS) adjacent a heart valve,
activating the displacement unit in an activated state whereby the shape of the annulus of the heart valve is modified to a modified shape,
introducing a catheter at the heart valve to deliver the annuloplasty implant,
inserting the annuloplasty implant around the annulus of the heart valve,
fixating the annuloplasty implant at the annulus when the modified shape is obtained,
removing the elongate displacement unit after temporary activation in said activated state.

2. Method according to claim 1 , wherein the annuloplasty implant comprises a helix ring, wherein the helix ring is placed through a commissure such that a lower ring of the helix ring is positioned below the heart valve in the ventricle, and an upper ring of the helix ring is positioned in the atrium, trapping the heart valve tissue therebetween.

3. Method according to claim 1 , wherein the catheter has a distal end and a proximal end, the method comprising
engaging a pre-determined cardiac structure with a coupling device arranged at the distal end to couple and align the catheter in a determined direction in the heart, and
deploying the annuloplasty implant through the catheter.

4. Method according to claim 3 , wherein aligning the catheter in a determined direction in the heart comprises anchoring the catheter relative to the pre-determined cardiac structure.

5. Method according to claim 3 , wherein the coupling device comprises a commissure locator device, the method comprising
locating the position of the commissures of a heart valve by positioning the commissure locator device at the commissures.

6. Method according to claim 3 , wherein the port is angled in a direction towards the pre-determined cardiac structure.

7. Method according to claim 3 , wherein the port is angled in a direction towards the coupling device.

8. Method according to claim 3 , wherein the coupling device is extendable relative the distal end of the catheter.

9. Method according to claim 3 , wherein the coupling device comprises at least one radially expandable superior loop and at least one radially expandable inferior loop, wherein the superior loop contacts a superior surface at the pre-determined cardiac structure and the inferior loop contacts an inferior surface at the pre-determined cardiac structure when the loops are in an expanded position to capture a portion of the pre-determined cardiac structure between the inferior and superior loops.

10. Method according to claim 1 , comprising delivering an interventional heart device, other than said annuloplasty implant, through said catheter.

11. Method according to claim 10 , wherein the interventional heart device or the annuloplasty implant is deployed through a port on the catheter.

12. Method according to claim 11 , wherein the port is angled in a direction towards the pre-determined cardiac structure.

13. Method according to claim 11 , wherein the port is angled in a direction towards the coupling device.

14. Method according to claim 1 , wherein activating the displacement unit in an activated state comprises state comprises positioning a proximal expandable portion against a tissue wall at the entrance of the CS,
positioning a distal anchoring portion inside the CS,
activating the displacement unit in an activated state whereby the distal anchoring portion is moved in a longitudinal direction of the displacement unit to reduce the distance between the distal anchoring portion and the proximal expandable portion such that the shape at the annulus is modified to said modified shape.

15. Method according to claim 1 , comprising guiding the annuloplasty implant into place at the annulus by a guide positioned at the catheter.

16. Method according to claim 1 , comprising providing a pre-loaded clip in a stapling device, and
delivering the clip from the stapling device to a target site to fix the annuloplasty implant to tissue at the target site, whereupon delivering the clip to the target site the clip strives to the relaxed shape and applies a compressive force to the tissue and/or annuloplasty implant for fixating the tissue and/or annuloplasty implant.

Assignees

• Medtentia Int Ltd Oy

Inventors

• Zerkowski Hans-Reinhard
• Keränen Olli
• O'Carroll Ger
• Pugh Mark
• Moran Adrian

Classifications

• A61F2/2451 Primary

  Inserts in the coronary sinus for correcting the valve shape · CPC title

• A61F2/2496

  Devices for determining the dimensions of the prosthetic valve to be implanted, e.g. templates, sizers · CPC title

• A61F2/2472

  Devices for testing · CPC title

• A61F2/2466 Primary

  Delivery devices therefor · CPC title