Repositionable heart valve and method

• US 8,840,662 B2
• Filed: 10/27/2011
• Issued: 09/23/2014
• Est. Priority Date: 12/23/2003
• Status: Expired due to Term

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Sadra Medical, Inc. (Boston Scientific Corporation)
• Inventors: Salahieh, Amr, Brandt, Brian D., Morejohn, Dwight P., Haug, Ulrich R., Dueri, Jean-Pierre, Valencia, Hans F., Geshlider, Robert A., Krolik, Jeff
• Primary Examiner(s): Matthews, Howie
• Application Number:
  US13/282,746
• Publication Number:
  US 20120041549A1
• Time in Patent Office: 1,062 Days
• Field of Search: 623/2.11, 623/2.14, 623 217- 219, 623/2.38
• US Class Current: 623/2.11
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2415 Manufacturing methods
• 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 2/2436 Deployment by retracting a sheath
• 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 2230/0078 hyperboloidal
• CPC Class Codes: A61F 2250/0036 differing in thickness
• CPC Class Codes: A61F 2250/0039 differing in diameter

Abstract

A method for percutaneously replacing a heart valve of a patient. In some embodiments the method includes the steps of percutaneously delivering a replacement valve and an expandable anchor to a vicinity of the heart valve in an unexpanded configuration; expanding the anchor to a deployed configuration in which the anchor contacts tissue at a first anchor site; repositioning the anchor to a second anchor site; and deploying the anchor at the second anchor site.

Claims

1. A method of recapturing a replacement heart valve apparatus, comprising:

endovascularly delivering a replacement valve and an expandable anchor within a delivery device to a vicinity of a heart valve, wherein the expandable anchor has a delivery configuration, a partially deployed, self-expanded configuration, and a fully expanded configuration, and comprises a proximal end and a plurality of posts;

allowing the anchor to self-expand from the delivery configuration in the delivery device to the partially deployed, self-expanded configuration in the vicinity of the heart valve and actively foreshortening the anchor by applying a distally directed force to the proximal end of the expandable anchor and simultaneously applying a proximal force to at least one of the posts; and

retrieving the expandable anchor within the delivery device, wherein retrieving the expandable anchor comprises collapsing the expandable anchor from the partially deployed, self-expanded configuration to the delivery configuration.

2. The method of claim 1 wherein the expandable anchor has a first diameter in the partially deployed, self-expanded configuration and a second diameter in the fully expanded configuration, and wherein the second diameter is larger than the first diameter.

3. The method of claim 2 further comprises repositioning the expandable anchor in the vicinity of the heart valve while the expandable anchor is in the partially deployed, self-expanded configuration.

4. The method of claim 1 further comprising:

expanding the expandable anchor from the partially deployed, self-expanded configuration to the fully expanded configuration; and

collapsing the expandable anchor back to the partially deployed, self-expanded configuration,

wherein the expanding and collapsing steps occur before the retrieving step.

5. The method of claim 1 further comprising reversibly coupling a deployment device to the proximal end of the expandable anchor.

6. The method of claim 5 wherein the deployment device comprises a plurality of deployment actuators.

7. The method of claim 6 wherein allowing the anchor to self-expand comprises allowing the plurality of deployment actuators to self-expand from the delivery device.

8. The method of claim 1 wherein retrieving the expandable anchor within the delivery device comprises applying a proximally directed force on the expandable anchor.

9. The method of claim 1 wherein retrieving the expandable anchor within the delivery device comprises at least partially retrieving the expandable anchor within the delivery device.