Fixation band for affixing a prosthetic heart valve to tissue

• US 7,611,535 B2
• Filed: 06/29/2006
• Issued: 11/03/2009
• Est. Priority Date: 09/07/2001
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Liddicoat, John R., Streeter, Richard B., Taylor, Daniel C., Woolfson, Steven B.
• Primary Examiner(s): McDermott; Corrine M
• Assistant Examiner(s): PRESTON, REBECCA STRASZHEIM
• Application Number:
  US11/479,357
• Publication Number:
  US 20060271175A1
• Time in Patent Office: 1,223 Days
• Field of Search: 623/1.24, 623/2.2, 623/1.26, 623/1.14, 623/1.36, 623/2.1, 623 211- 219, 623/2.36, 623 238- 24
• US Class Current: 623/2.38
• 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 2/2412 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 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/848 having means for fixation to the vessel wall, e.g. barbs
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0025 Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• 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 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2250/0039 differing in diameter
• CPC Class Codes: A61F 2250/0069 Sealing means

Abstract

A fixation band for affixing a prosthetic heart valve to tissue having proximal and distal annular portions positionable relative to one another, the proximal and distal annular portions each having a proximal and distal sides, the proximal side of the distal annular portion and the distal side of the proximal annular portion being oriented toward one another, and a prosthetic heart valve being attachable to one of the distal side of the distal annular portion and the proximal side of the proximal annular portion; staples configured between the distal side of the proximal annular portion and the proximal side of the distal annular portion; and a compression device operative between the proximal and distal annular portions for selectively positioning the proximal and distal annular members toward one another for compressing the staples therebetween and deploying the staples into tissue so as to affix the prosthetic heart valve to tissue.

Claims

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

providing a fixation band for affixing a prosthetic heart valve to tissue, the fixation band comprising;

a structure having a proximal end and a distal end in opposition to one another, and a lateral region between the proximal end and the distal end, wherein the prosthetic heart valve is attached to one of the proximal end and the distal end of the structure;

a plurality of barbs selectively configurable between a first position and a second position, the barbs being contained within a peripheral boundary of the lateral region of the structure in the first position, and the barbs being extended from the peripheral boundary of the lateral region of the structure in the second position; and

an actuator for selectively moving the plurality of barbs between the first position and the second position, the actuator including a spring in a loaded configuration that is releasable for causing a cog to rotate, which in turn causes the barbs to be deployed through the lateral portion of the fixation band;

positioning the fixation band adjacent to the tissue; and

actuating the fixation band so as to affix the prosthetic valve to tissue.