Implant delivery and deployment system and method

• US 8,506,623 B2
• Filed: 07/10/2012
• Issued: 08/13/2013
• Est. Priority Date: 10/26/2005
• Status: Active Grant

• Current Assignee: Cardiosolutions, Inc.
• Original Assignee: Cardiosolutions, Inc.
• Inventors: Wilson, Jonathan E., St. John, Robert J., Polgar, Stephen R.
• Primary Examiner(s): Tyson, Melanie
• Assistant Examiner(s): DANG, PHONG SON H
• Application Number:
  US13/545,927
• Publication Number:
  US 20130041459A1
• Time in Patent Office: 399 Days
• Field of Search: None
• US Class Current: 623/2.11
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/246 Devices for obstructing a leak through a native valve in a closed condition
• CPC Class Codes: A61F 2/2466 Delivery devices therefor

Abstract

An implant delivery system comprising a catheter including at least one lumen, an implant configured for receipt in the lumen, and a latching mechanism configured for receipt in the implant. The latching mechanism may be configured to releasably couple the implant to a delivery wire and to transmit torque through the delivery wire to cause at least a portion of the implant to rotate. The an implant may comprise a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position, a garage configured to couple the spacer to a first end region of the shaft, and at least one anchor mechanism. The garage may define a cavity to receive the latching mechanism and to increase rotational and translational stability of the latching mechanism.

Claims

1. A method of delivering an implant within a heart, said implant including a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through said heart valve in a closed position, and at least one anchor mechanism coupled to a first end region of said shaft, said method comprising:

providing a delivery wire having a first latch pin;

coupling said first latch pin to a second latch pin disposed within said implant;

advancing a distal end of a sleeve over said first and said second latch pins to prevent movement of said first and said second latch pins;

percutaneously delivering a catheter proximate said heart;

loading said implant and said distal end of said sleeve into said catheter; and

advancing said implant and said distal end of said sleeve through said catheter.

2. The method of claim 1, further comprising rotating said delivery wire and transmitting torque through said first and said second pins to cause said anchoring mechanism to engage tissue within said heart.

3. The method of claim 2, further comprising:

retracting said distal end of said sleeve to expose at least one of said first and second pins; and

decoupling said first and said second latching pins.

4. The method of claim 1, wherein said implant further comprises garage configured to couple said spacer to said shaft, said garage defining a cavity configured to receive said distal end region of said sleeve to increase rotational and translational stability of said sleeve.

5. The method of claim 1, further comprising de-airing the implant prior to loading said implant into said catheter.

6. The method of claim 1, further comprising loading a distal end of a pusher into said catheter.

7. The method of claim 6, wherein said pusher and said implant are loaded into said catheter with a loading system comprising a loading sheath.

8. The method of claim 1, wherein said percutaneously delivering comprises advancing said implant through said catheter by applying a translational force to said pusher.

9. The method of claim 1, wherein said anchoring mechanism comprises a cavity configured to at least partially receive a helical screw, the method further comprising rotating said helical screw to advance said helical screw into tissue of said heart.

10. The method of claim 9, wherein said anchoring mechanism further comprises a threaded region secured within said cavity, said threaded region having a thread pitch and size substantially corresponding to a first threaded region of said helical screw.