Replacement heart valve with improved stitching

• US 10,405,974 B2
• Filed: 04/21/2017
• Issued: 09/10/2019
• Est. Priority Date: 04/26/2016
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Hayes, Michael
• Primary Examiner(s): Wolf, Megan Y
• Application Number:
  US15/493,264
• Publication Number:
  US 20170304049A1
• Time in Patent Office: 872 Days
• CPC Class Codes: A61B 17/06166 Sutures suture materials A61L17/00; manufacture of artificial threads D01D; treatment of threads D06M
• CPC Class Codes: A61B 2017/06171 helically or spirally coiled for needles A61B2017/06076
• CPC Class Codes: A61F 2/2403 with pivoting rigid closure members check valves with hinged closure members in general F16K15/03
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2418 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 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2/2469 with resilient valve members, e.g. conical spiral
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2250/0069 Sealing means

Abstract

A replacement heart valve implant may include an expandable anchor member, a plurality of valve leaflets disposed within the anchor member, a seal member disposed about a distal portion of the anchor member, one or more whip sutures attaching a distal end of the seal member to a distal end of the plurality of valve leaflets at a joint, one or more distal lashing sutures attaching a distal portion of the seal member to a distal end of the anchor member, and a plurality of proximal lashing sutures attaching a proximal portion of the seal member to the distal portion of the anchor member, wherein the one or more distal lashing sutures does not extend through the seal member.

Claims

1. A replacement heart valve implant, comprising:

an expandable anchor member;

a plurality of valve leaflets disposed within the anchor member;

a seal member disposed about a distal portion of the anchor member;

one or more whip sutures attaching a distal end of the seal member to a distal end of the plurality of valve leaflets at a joint;

one or more distal lashing sutures attaching a distal portion of the seal member to

a distal end of the anchor member,

wherein the one or more distal lashing sutures directly attach the one or more whip sutures to the distal end of the anchor member; and

a plurality of proximal lashing sutures attaching a proximal portion of the seal member to the distal portion of the anchor member;

wherein the one or more distal lashing sutures does not extend through the seal member.

2. The replacement heart valve implant of claim 1, wherein the distal end of the seal member includes a reinforcing band coupled to the seal member.

3. The replacement heart valve implant of claim 2, wherein the reinforcing band is at least partially embedded within the seal member.

4. The replacement heart valve implant of claim 2, wherein the one or more whip sutures attach the reinforcing band to the distal end of the plurality of valve leaflets.

5. The replacement heart valve implant of claim 2, wherein the one or more distal lashing sutures attach the reinforcing band to the distal end of the anchor member.

6. The replacement heart valve implant of claim 1, wherein the one or more whip sutures form one or more first helical spirals about the joint.

7. The replacement heart valve implant of claim 6, wherein the one or more distal lashing sutures form one or more second helical spirals about the distal end of the anchor member.