US 10,292,819 B2Granted

Crimping accessory devices and methods of use

AssigneeEdwards Lifesciences Corporation

InventorsMinh T. Ma, Seung-Beom Yi, Ryan Silva

Life of this patent

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Abstract

A prosthetic valve assembly includes an annular frame having an inner radial surface, an outer radial surface, and defining an inner lumen. The prosthetic valve assembly further includes a leaflet assembly including at least one leaflet having an inner radial surface and an outer radial surface. The at least one leaflet is disposed at least partially within the inner lumen of the annular frame. The prosthetic valve assembly includes a crimping accessory device having a handle and at least one shielding member removably disposed between the outer radial surface of the at least one leaflet and the inner radial surface of the annular frame. The at least one shielding member is configured to reduce physical contact between the at least one leaflet and the inner radial surface of the annular frame.

Claims20

Dependent claims

An assembly comprising:

a prosthetic valve comprising a radially expandable and compressible annular frame, the annular frame comprising an inner surface, an outer surface, and a plurality of struts, the plurality of struts defining openings in the annular frame, the prosthetic valve further comprising a leaflet assembly supported inside the annular frame, the leaflet assembly comprising a plurality of leaflets, each having an inner surface and an outer surface;
and
a crimping accessory device, the crimping accessory device comprising a handle and at least one shielding member, the at least one shielding member being sized and shaped to be placed into a space between the outer surface of at least one of the leaflets and the inner surface of the annular frame, thereby reducing the amount of physical contact between the at least one of the leaflets and the inner surface of the annular frame when the prosthetic valve is radially compressed from an expanded state to a radially compressed state, the at least one shielding member further being sized and shaped to prevent the at least one of the leaflets from protruding through openings of the frame when the prosthetic valve is radially compressed.

A method for compressing a prosthetic valve comprising a compressible annular frame, the annular frame comprising an inner surface, an outer surface, and a plurality of struts, the plurality of struts defining openings in the annular frame, and a leaflet assembly mounted inside of the frame, the leaflet assembly comprising a plurality of leaflets, each having an inner surface and an outer surface, the method comprising:

inserting at least one shielding member of a crimping accessory device between the inner surface of the annular frame and the outer surface of at least one leaflet of the leaflet assembly, the at least one shielding member being sized and shaped to be placed into a space between the outer surface of the at least one leaflet and the inner surface of the annular frame, thereby reducing the amount of physical contact between the at least one leaflet and the inner surface of the annular frame when the prosthetic valve is radially compressed from an expanded state to a radially compressed state, the at least one shielding member further being sized and shaped to prevent the at least one leaflet from protruding through openings of the frame when the prosthetic valve is radially compressed;
radially compressing the prosthetic valve;
and
removing the crimping accessory device from the prosthetic valve.

1 more element

placing the prosthetic valve in a crimping aperture formed by a plurality of circumferentially arranged jaws;
inserting each of a plurality of shielding members of a crimping accessory device between the inner surface of the annular frame and the outer surface of a respective leaflet of the leaflet assembly, the plurality of shielding members being sized and shaped to be placed into a space between the outer surface of a respective leaflet and the inner surface of the annular frame, thereby reducing the amount of physical contact between the respective leaflet and the inner surface of the annular frame when the prosthetic valve is radially compressed from an expanded state to a radially compressed state, the plurality of shielding members further being sized and shaped to prevent respective leaflets from protruding through openings of the frame when the prosthetic valve is radially compressed;
at least partially crimping the prosthetic valve with the jaws;
and
removing the crimping accessory device from the prosthetic valve after at least partially crimping the prosthetic valve.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/074,803Filed 18 Mar 2016 · continuation
Priority: 22 May 2014
Published: US 2016/0199184 A114 Jul 2016
Granted: 21 May 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

A61F 2/2427
Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the…:…
A61F 2/2418
With soft flexible valve members, e.g. tissue valves shaped like natural valves: scaffolds therefor, e.g. support stents
A61F 2/95
Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting…:…
A61F 2/9524
Means for mounting a stent or stent-graft onto or into a placement instrument: iris-type crimpers

Family

Application62/002,003Us provisional application · filed 22 May 2014
Application14/707,607Parent of this continuation · filed 8 May 2015
US 2016/0199184 A1Pre-grant publication · published 14 Jul 2016
US 9,757,232 B2Parent of this continuation
US 2015/0336150 A1Published application
US 10,292,819 B2This patent

From the US filing history. Foreign family members aren’t listed.