Delivery systems and methods of implantation for replacement prosthetic heart valves

• US 20080228263A1
• Filed: 02/15/2008
• Published: 09/18/2008
• Est. Priority Date: 02/16/2007
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Ryan, Timothy R.
• Granted Patent: US 8,623,074 B2
• Time in Patent Office: Days
• US Class Current: 623/2.11
• 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 2/2433 using balloon catheter
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2220/005 using adhesives
• 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 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61F 2310/00023 Titanium or titanium-based alloys, e.g. Ti-Ni alloys

Abstract

A delivery system and method for positioning and partially deploying a replacement valve at an implantation site, verifying the location of the replacement valve relative to the implantation site, and retrieving the partially deployed stent for repositioning relative to the implantation site.

Claims

1. A method of delivering a replacement prosthetic valve to a previously implanted prosthetic valve with a delivery system, the method comprising:

attaching the replacement valve to at least one delivery component of the delivery system;

compressing the replacement valve within a sheath of the delivery system;

advancing a guidewire of the delivery system to an implantation site;

advancing the delivery system with the compressed replacement valve over the guidewire to the implantation site;

at least partially deploying the replacement valve from the sheath;

verifying the placement of the replacement valve;

at least partially recompressing the replacement valve within the sheath of the delivery system;

repositioning the delivery system with the compressed replacement valve relative to the implantation site;

at least partially redeploying the replacement valve;

verifying the placement of the replacement valve; and

releasing the replacement valve from the at least one delivery component of the delivery system.

2. The method of claim 1, further comprising the steps of resheathing the at least one delivery component with the sheath and removing the delivery system from the implantation site.