Anchoring studs for transcatheter valve implantation

• US 9,867,611 B2
• Filed: 08/19/2014
• Issued: 01/16/2018
• Est. Priority Date: 09/05/2013
• Status: Active Grant

• Current Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: St. Jude Medical Cardiology Division Incorporated (Abbott Laboratories Incorporated)
• Inventors: Smith, Kent J., Braido, Peter N.
• Primary Examiner(s): LOUIS, RICHARD G
• Application Number:
  US14/462,729
• Publication Number:
  US 20150066136A1
• Time in Patent Office: 1,246 Days
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 2017/0647 having one single leg, e.g. tacks
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2220/0033 made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
• CPC Class Codes: A61F 2250/006 modular
• CPC Class Codes: A61F 2250/0063 Nested prosthetic parts

Abstract

An anchoring device for use within a vascular structure includes a head having a first surface and a second surface meeting at a common plane, and an anchor including a shaft having a longitudinal axis, a first end connected at a junction to the first surface of the head, and a free end. A harbor space is bounded by the shaft of the anchor, the first surface of the head, a first theoretical plane perpendicular to the longitudinal axis at a spaced distance from the junction and a second theoretical plane tangential to the head at a point in the common plane. The harbor space has an are sufficient to receive a portion of a stented device therein.

Claims

1. A valvular prosthesis for use within a cardiovascular structure, comprising:

a prosthesis having an outer portion for engagement with the cardiovascular structure and an inner portion disposed opposite the outer portion; and

an anchoring device having a plurality of disc-shaped members and a plurality of nodules, the disc-shaped members each having first and second end surfaces and a side surface spanning therebetween, each of the disc-shaped members being connected to an adjacent disc-shaped member via a connector arm that extends from the side surfaces thereof, the plurality of nodules each projecting from the first end surface of a respective one of the disc-shaped members, and the second end surfaces of the disc-shaped members being engaged with the inner portion of the prosthesis.

2. The valvular prosthesis of claim 1, wherein the prosthesis is a bioprosthetic valve including a cuff and a plurality of leaflets.

3. The valvular prosthesis of claim 2, wherein the disc-shaped members each include apertures that extend through the first and second end surfaces thereof, the disc-shaped members being sewn to one of the cuff or at least one of the plurality of leaflets via the apertures.

4. The valvular prosthesis of claim 1, wherein the prosthesis is an annuloplasty ring including a core disposed between the inner portion and outer portion.

5. The valvular prosthesis of claim 4, wherein the disc-shaped members are sewn to the inner portion of the annuloplasty ring.

6. A method of anchoring a stented device, comprising:

guiding a catheter to a deployment location within the cardiovascular system of a patient, the catheter having contained therein, in a contracted configuration, an expandable stented device including a plurality of cells, the deployment location including at least one anchoring device with a head projecting radially inwardly within the deployment location, the head having a rounded body with at least two surfaces that meet each other at a common plane;

removing the stented device from the catheter at the deployment location;

expanding the stented device such that the head of the anchoring device extends through one of the cells of the stented device;

at least partially contracting the stented device after the expanding step;

adjusting the stented device along the deployment location after the step of at least partially contracting the stented device to reposition the stented device relative to the head; and

re-expanding the stented device after the adjusting step so that the head extends through another one of the cells of the stented device.

7. The method of claim 6, wherein the anchoring device further has a first portion penetrated into tissue within a vascular structure, the head being attached to the first portion, and the head and the tissue together at least partially defining a harbor space.

8. The method of claim 7, further comprising moving the stented device in a direction with or against the direction of blood flow, such that a strut of the stented device is received within the harbor space, thereby obstructing further movement of the stented device.

9. The method of claim 6, wherein the anchoring device is attached to a valvular prosthesis already present within the deployment location.

10. The method of claim 8, further comprising deploying an anchoring stent including the anchoring device within the deployment location prior to the removing step.