Method for implantation of fixation band and prosthetic heart valve to tissue

• US 7,771,469 B2
• Filed: 10/24/2007
• Issued: 08/10/2010
• Est. Priority Date: 09/07/2000
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Liddicoat, John R.
• Primary Examiner(s): Matthews; William H.
• Application Number:
  US11/977,702
• Publication Number:
  US 20080065206A1
• Time in Patent Office: 1,021 Days
• Field of Search: 623/2.1, 623/2.11, 623 238- 241
• US Class Current: 623/2.4
• 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 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2250/0069 Sealing means

Abstract

A fixation band has a tubular frame and a tube, wherein the tubular frame comprises longitudinally-extending members having a hook on its distal end and fixation means on its proximal end. The tubular frame preferably comprises a laterally-extending member for stabilization. The tube is positioned inside longitudinally-extending members and a sewing cuff is formed in the tube distal to the distalmost end of the longitudinally-extending members. A standard prosthetic valve can be secured to the fixation band by suturing the prosthetic valve'"'"'s sewing cuff to the fixation band'"'"'s sewing cuff and the prosthetic valve can be advanced to a valve seat. By pulling the tubular frame proximally, the hooks pass into surrounding tissue so that the fixation band and prosthetic valve are fixed against proximal movement. The fixation means then secure the fixation band to the surrounding tissue so that the prosthetic valve is fixed against distal movement.

Claims

1. A method for affixing a prosthetic heart valve to tissue, comprising:

attaching a prosthetic heart valve to a fixation band, the prosthetic heart valve comprising a frame having a longitudinal axis extending between a proximal end and a distal end, at least one leaflet adapted to open and close relative to said frame, and a sewing cuff attached to a proximal end of said frame, the fixation band being provided for affixing the prosthetic heart valve to tissue and comprising a plurality of longitudinally-extending members having a hook on its distal end and fixation means on its proximal end so as to form a tubular frame; and

a tube positioned inside said longitudinally-extending members, with the distal end of said tube everted back over said hooks, and with a sewing cuff formed in said tube distal to the distalmost end of said longitudinally-extending members;

wherein the prosthetic heart valve is attached to the fixation band by suturing the sewing cuff of the prosthetic heart valve to the sewing cuff of the fixation band so that the entirety of the prosthetic heart valve and said sewing cuffs are positioned distal to the tubular frame of the fixation band with the respective sewing cuffs adjacent to one another along the direction of said longitudinal axis;

positioning the prosthetic heart valve at its valve seat with the prosthetic heart valve distal to the fixation band; and

fixing the fixation band to tissue surrounding the valve seat.