Prosthetic valves and related inventions

• US 10,617,519 B2
• Filed: 10/07/2019
• Issued: 04/14/2020
• Est. Priority Date: 08/11/2011
• Status: Active Grant

• Current Assignee: Tendyne Holdings Inc. (Abbott Laboratories Incorporated)
• Original Assignee: Tendyne Holdings Inc. (Abbott Laboratories Incorporated)
• Inventors: Vidlund, Robert, Schankereli, Kemal, Lozonschi, Lucian, Lutter, Georg
• Primary Examiner(s): Gherbi, Suzette J
• Application Number:
  US16/594,504
• Publication Number:
  US 20200038179A1
• Time in Patent Office: 190 Days
• Field of Search: 623 21- 219
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 2017/0404 Buttons
• 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 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/2457 Chordae tendineae prostheses
• CPC Class Codes: A61F 2210/0004 bioabsorbable
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2220/0091 connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
• CPC Class Codes: A61F 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2230/0034 D-shaped
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0067 : conical
• CPC Class Codes: A61F 2230/0091 : helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
• CPC Class Codes: A61F 2310/00023 : Titanium or titanium-based alloys, e.g. Ti-Ni alloys
• CPC Class Codes: A61F 2310/00077 : Copper or Cu-based alloys
• CPC Class Codes: A61L 2400/16 : Materials with shape-memory or superelastic properties
• CPC Class Codes: A61L 2430/20 : for reconstruction of the heart, e.g. heart valves
• CPC Class Codes: A61L 27/34 : Macromolecular materials
• CPC Class Codes: A61L 27/3625 : Vascular tissue, e.g. heart valves
• CPC Class Codes: A61L 27/3629 : Intestinal tissue, e.g. small intestinal submucosa
• CPC Class Codes: A61L 33/0011 : Anticoagulant, e.g. heparin, platelet aggregation inhibitor, fibrinolytic agent, other than enzymes, attached to the substrate
• CPC Class Codes: C08L 67/04 : Polyesters derived from hydroxycarboxylic acids, e.g. lactones C08L67/06 takes precedence

Abstract

This invention relates to the design and function of a compressible valve replacement prosthesis, collared or uncollared, which can be deployed into a beating heart without extracorporeal circulation using a transcatheter delivery system. The design as discussed focuses on the deployment of a device via a minimally invasive fashion and by way of example considers a minimally invasive surgical procedure preferably utilizing the intercostal or subxyphoid space for valve introduction. In order to accomplish this, the valve is formed in such a manner that it can be compressed to fit within a delivery system and secondarily ejected from the delivery system into the annulus of a target valve such as a mitral valve or tricuspid valve.

Claims

1. A prosthetic valve for implantation in a native valve annulus between an atrium and a ventricle of a heart comprising:

a self-expanding tubular stent having a proximal, atrial end and an opposite, distal, ventricular end;

a leaflet assembly disposed within the stent and supporting set of valve leaflets;

a collar attached to and encircling the tubular stent to form a V-shape in cross-section, the collar originating at the distal, ventricular end of the stent and expanding in diameter away from the distal, ventricular end of the stent towards the proximal, atrial end of the stent.

2. The prosthetic heart valve of claim 1, wherein the collar is formed from a web of Nitinol shape-memory material covered by one of a stabilized tissue and a synthetic material.

3. The prosthetic heart valve of claim 1, wherein the collar is formed separately from the stent and attached to the stent.

4. The prosthetic heart valve of claim 1, wherein the collar is formed from loops of wire.

5. The prosthetic heart valve of claim 1, wherein the collar is constructed from an attached panel formed of polyester fabric material.

6. The prosthetic heart valve of claim 1, wherein each of the stent and the collar is laser-cut.

7. The prosthetic heart valve of claim 6, wherein the stent and the collar are manufactured as a unitary laser cut stent-collar construction.