Low profile transcatheter heart valve
DC CAFCFirst Claim
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1. A method of assembling an implantable prosthetic valve, comprising:
- suturing a reinforcing member to an inner surface of a leaflet structure adjacent a lower edge of the leaflet structure;
suturing a skirt member to an outer surface of the leaflet structure along a scallop line that tracks the lower edge of the leaflet structure to form an assembly comprised of the skirt member, the leaflet structure, and the reinforcing member;
placing the assembly inside of a radially collapsible and expandable annular frame, wherein the frame comprises a plastically deformable material selected from the group comprising stainless steel and a nickel-cobalt based alloy; and
suturing the skirt member to struts of the frame;
wherein the leaflet structure comprises three leaflets, each having a curved lower edge and the act of suturing the reinforcing member comprises suturing the reinforcing member to inner surfaces of the leaflets adjacent their curved lower edges.
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Abstract
A method of crimping an implantable prosthetic valve can include placing protective material over at least a portion of the implantable prosthetic valve. The protective material can be configured to occupy space between open cells of a frame of the implantable prosthetic valve to prevent damage to a leaflet structure of the implantable prosthetic valve. The method can also include crimping the implantable prosthetic valve with the protective material on the implantable prosthetic valve, and removing the protective material from between the frame and the leaflet structure of the implantable prosthetic valve.
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Citations
18 Claims
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1. A method of assembling an implantable prosthetic valve, comprising:
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suturing a reinforcing member to an inner surface of a leaflet structure adjacent a lower edge of the leaflet structure; suturing a skirt member to an outer surface of the leaflet structure along a scallop line that tracks the lower edge of the leaflet structure to form an assembly comprised of the skirt member, the leaflet structure, and the reinforcing member; placing the assembly inside of a radially collapsible and expandable annular frame, wherein the frame comprises a plastically deformable material selected from the group comprising stainless steel and a nickel-cobalt based alloy; and suturing the skirt member to struts of the frame; wherein the leaflet structure comprises three leaflets, each having a curved lower edge and the act of suturing the reinforcing member comprises suturing the reinforcing member to inner surfaces of the leaflets adjacent their curved lower edges. - View Dependent Claims (2, 3, 4, 5, 11)
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6. A method of assembling an implantable prosthetic valve, comprising:
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suturing a reinforcing member to an inner surface of a leaflet structure adjacent a lower edge of the leaflet structure; suturing a skirt member to an outer surface of the leaflet structure along a scallop line that tracks the lower edge of the leaflet structure to form an assembly comprised of the skirt member, the leaflet structure, and the reinforcing member; placing the assembly inside of a radially collapsible and expandable annular frame, wherein the frame comprises a plastically deformable material selected from the group comprising stainless steel and a nickel-cobalt based alloy; and suturing the skirt member to struts of the frame; wherein the lower edge of the leaflet structure is secured to the frame only indirectly by the skirt member.
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7. A method of assembling an implantable prosthetic valve, comprising:
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suturing a reinforcing member to an inner surface of a leaflet structure adjacent a lower edge of the leaflet structure; suturing a skirt member to an outer surface of the leaflet structure along a scallop line that tracks the lower edge of the leaflet structure to form an assembly comprised of the skirt member, the leaflet structure, and the reinforcing member; placing the assembly inside of a radially collapsible and expandable annular frame, wherein the frame comprises a plastically deformable material selected from the group comprising stainless steel and a nickel-cobalt based alloy; and suturing the skirt member to struts of the frame; wherein the lower edge of the leaflet structure is sutured only to the skirt member and the reinforcing member.
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8. A method of assembling an implantable prosthetic valve, comprising:
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suturing a reinforcing member to inner surfaces of three tissue leaflets adjacent curved lower edges of the leaflets; suturing a skirt member to outer surfaces of the leaflets with a suture that extends through the skirt member, the leaflets, and the reinforcing member along a scallop line that tracks the curved lower edges of the leaflets to form an assembly comprised of the skirt member, the leaflets, and the reinforcing member; placing the assembly inside of a radially collapsible and expandable annular frame, the annular frame comprising at least three rows of circumferentially extending rows of angled struts including a first row of angled struts defining an inflow end of the frame, a second row of angled struts defining an outflow end of the frame, and a third row of angled struts positioned axially between the first and second rows of angled struts along a length of the frame, wherein the frame comprises a plastically deformable material selected from the group comprising stainless steel and a nickel-cobalt based alloy; and suturing the skirt member to struts of the first and third rows of angled struts. - View Dependent Claims (9, 10, 12, 13, 14, 15, 16)
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17. A method of assembling an implantable prosthetic valve, comprising:
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placing a reinforcing member along a first surface of a leaflet structure adjacent an undulating lower edge of the leaflet structure; placing a skirt member along a second surface of the leaflet structure; securing the skirt member to the leaflet structure by forming in-and-out stitches with a suture that extends through the skirt member, the leaflet structure, and the reinforcing member along a scallop line that tracks the lower edge of the leaflet structure to form an assembly comprised of the skirt member, the leaflet structure, and the reinforcing member; subsequent to securing the skirt member to the leaflet structure to form the assembly, placing the assembly inside of a radially collapsible and expandable annular frame, wherein the frame comprises a plastically deformable material selected from the group comprising stainless steel and a nickel-cobalt based alloy; and suturing the skirt member to struts of the frame; wherein the reinforcing member and the skirt member are separate pieces of material and the reinforcing member is sutured to the leaflets prior to securing the skirt member to the leaflet structure with the in-and-out stitches. - View Dependent Claims (18)
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Specification