System and method for treating valve insufficiency or vessel dilatation

• US 9,999,506 B2
• Filed: 02/22/2016
• Issued: 06/19/2018
• Est. Priority Date: 05/31/2011
• Status: Active Grant

• Current Assignee: Edwards Lifesciences Corporation
• Original Assignee: Edwards Lifesciences Corporation
• Inventors: Olson, Christopher J., Rabito, Glen Thomas, Armer, Dustin P., Hauser, David L.
• Primary Examiner(s): Sweet, Thomas J
• Assistant Examiner(s): Wolf, Megan
• Application Number:
  US15/049,813
• Publication Number:
  US 20160166384A1
• Time in Patent Office: 848 Days
• CPC Class Codes: A61F 2/07 Stent-grafts
• 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 2/2433 using balloon catheter
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/2469 with resilient valve members, e.g. conical spiral
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2002/077 having means to fill the space between stent-graft and aneurysm wall, e.g. a sleeve
• CPC Class Codes: A61F 2002/823 Stents, different from stent-grafts, adapted to cover an aneurysm
• CPC Class Codes: A61F 2210/0061 swellable
• CPC Class Codes: A61F 2210/0085 hardenable in situ, e.g. epoxy resins
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2250/0003 having an inflatable pocket filled with fluid, e.g. liquid or gas
• CPC Class Codes: A61F 2250/006 modular
• CPC Class Codes: A61F 2250/0069 Sealing means
• CPC Class Codes: A61F 2250/007 : O-rings

Abstract

A medical device configured for placement in a blood vessel, in which an elastic tube extends between first and second expandable anchoring stents. The elastic tube is constructed of a resilient material that deflects outward in response to increased blood pressure of a heart beat and that moves back inward as the blood pressure drops, thereby aiding the heart'"'"'s pumping action.

Claims

1. A medical device for implantation in a heart having a native heart valve and a vessel extending from the native heart valve, the medical device comprising:

a support structure;

a first stent, separate from the support structure, configured to couple to the support structure using a plurality of retaining arms and extend from the support structure into the vessel;

a prosthetic heart valve configured for implantation in the native heart valve without a direct coupling to the support structure or the first stent; and

a deflector configured to be supported by the first stent and abate blood flow against the vessel;

wherein the support structure is configured to extend around a plurality of leaflets of the native heart valve, such that the leaflets of the native heart valve are pinched between the prosthetic heart valve and the support structure after the support structure is implanted around the native leaflets and the prosthetic heart valve is implanted within the native leaflets of the native heart valve; and

wherein the deflector is configured to resiliently respond to blood flow, wherein the deflector comprises a resilient wall structure having a lumen, first and second axially spaced ends and a reduced diameter at a location between the first and second ends, wherein the deflector is configured to deflect from a non-deflected state to a deflected state under blood pressure and spring back to the non-deflected state to augment pumping of blood through the lumen of the deflector.

2. The medical device of claim 1, wherein the support structure is configured to receive and support therein the prosthetic heart valve.

3. The medical device of claim 2, wherein the prosthetic heart valve is expandable within an interior of the support structure, thereby causing one or more native leaflets of the native heart valve to be frictionally secured between the support structure and the expanded prosthetic heart valve.

4. The medical device claim 1, and further comprising a second stent spaced away from the first stent when the device is implanted, wherein the deflector extends between the first and second stents.

5. The medical device of claim 1, wherein the first stent is longitudinally spaced from the support structure and an outflow end of the support structure is connected to an inflow end of the stent by a plurality of wires.

6. The medical device of claim 5, wherein the wires are sized such that the first stent can be implanted in the aorta downstream of the coronary ostia.