TRANSCATHETER PROSTHETIC HEART VALVE DELIVERY SYSTEM WITH RECAPTURING FEATURE AND METHOD

• US 20150173895A1
• Filed: 03/09/2015
• Published: 06/25/2015
• Est. Priority Date: 04/09/2010
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Shipley, Adam, Shanahan, John P., Crisman, Andrew
• Granted Patent: US 9,522,063 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 2/243 Deployment by mechanical expansion
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2002/9534 for repositioning of stents

Abstract

A delivery system for percutaneously deploying a prosthetic heart valve. The system includes an inner shaft assembly, a delivery sheath capsule and a handle maintaining a first actuator and a second actuator. The capsule is configured to compressively retain the prosthetic heart valve over the inner shaft assembly. The first actuator is operated to proximally retract the delivery sheath capsule and expose the prosthetic heart valve relative to the capsule. The second actuator is operated to proximally retract the prosthetic heart valve by transmitting forces to the inner shaft assembly.

Claims

1-11. -11. (canceled)

12. :

A method of deploying a stented prosthetic heart valve to an implantation site, the method comprising;

receiving a delivery system loaded with a radially expandable prosthetic heart valve having a frame to which a valve structure is attached, the delivery system including a delivery sheath capsule containing the prosthetic heart valve in a compressed arrangement over an inner shaft assembly in a loaded state of the system;

delivering the prosthetic heart valve in the compressed arrangement through a bodily lumen of the patient and to the implantation site via the delivery system in the loaded state;

proximally retracting the delivery sheath capsule relative to the prosthetic heart valve such that a distal region of the prosthetic heart valve is exposed distal the capsule, wherein the distal region self-expands toward a deployed arrangement;

evaluating a position of the prosthetic heart valve relative to the implantation site;

proximally advancing the prosthetic heart valve relative to the delivery system by applying proximal forces to the inner shaft assembly such that the delivery system is arranged over the prosthetic heart valve to cause the distal region of the prosthetic heart valve to transition toward the collapsed arrangement within the capsule; and

fully proximally retracting the recapture assembly from the prosthetic heart valve such that the prosthetic heart valve self-deploys from the inner shaft assembly.

13. :

The method of claim 12, further comprising;

applying distal forces to the delivery sheath capsule to position the capsule over the distal region of the prosthetic heart valve to transition toward the collapsed arrangement.

14. :

The method of claim 12, wherein the delivery system includes a handle having a housing that maintains a first actuator operable relative to the housing to apply forces to the delivery sheath capsule and a second actuator operable relative to the housing to apply forces to the inner shaft assembly.

15. :

The method of claim 14, wherein the housing includes a proximal end and a distal end, the first actuator being operated toward the proximal end to apply proximal forces to the delivery sheath capsule and the second actuator being operated away from the proximal end to apply proximal forces to the prosthetic heart valve.