Prosthetic Heart Valves, Scaffolding Structures, and Systems and Methods for Implantation of Same

• US 20100305691A1
• Filed: 07/28/2010
• Published: 12/02/2010
• Est. Priority Date: 02/27/2004
• Status: Active Grant

• Current Assignee: AorTx, Inc. (Johnson & Johnson)
• Original Assignee: AorTx, Inc. (Johnson & Johnson)
• Inventors: Ginn, Richard, Heneveld, Scott, Forster, David C., Walsh, Brandon
• Granted Patent: US 8,608,770 B2
• Time in Patent Office: Days
• US Class Current: 623/2.11
• 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 2/2433 using balloon catheter
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/2439 Expansion controlled by filaments
• CPC Class Codes: A61F 2/9522 Means for mounting a stent or stent-graft onto or into a placement instrument
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0033 made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0091 connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
• CPC Class Codes: A61F 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0091 helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
• CPC Class Codes: A61F 2250/001 for adjusting a diameter
• CPC Class Codes: A61F 2250/006 modular
• CPC Class Codes: A61F 2250/0063 Nested prosthetic parts

Abstract

Prosthetic valves and their component parts are described, as are prosthetic valve delivery devices and methods for their use. The prosthetic valves are particularly adapted for use in percutaneous aortic valve replacement procedures. The delivery devices are particularly adapted for use in minimally invasive surgical procedures.

Claims

1. A delivery device for a prosthetic heart valve, comprising:

a gripper having a plurality of fingers, and

a tubular member having a plurality of longitudinal slots at a distal end thereof,

wherein said gripper is slidably disposed within said tubular member and said plurality of fingers have a first position within the interior of a distal end of the tubular member and a second position extending outward from the distal end of the tubular member.

2. The delivery device of claim 1, wherein said gripper is an elongated member defining a longitudinal axis, and each of said plurality of fingers extends from a first end of said gripper generally parallel to said longitudinal axis.

3. The delivery device of claim 1, wherein said gripper comprises three or more fingers.

4. The delivery device of claim 1, wherein each of said plurality of fingers comprises a generally cylindrical member extending from a first end of said gripper.

5. The delivery device of claim 1, wherein said tubular member comprises a rigid material.

6. The delivery device of claim 1, wherein said tubular member comprises a flexible material.

7. The delivery device of claim 1, further comprising a prosthetic heart valve retained by the fingers of said gripper.

8. The delivery device of claim 7, wherein said prosthetic heart valve is located within the interior of the tubular member when the fingers of said gripper are in the first position.

9. The delivery device of claim 7, wherein at least a portion of said prosthetic heart valve extends through at least one of the longitudinal slots on said tubular member.

10. A delivery device for a prosthetic heart valve, comprising:

a catheter body having a proximal end, a distal end, and defining a longitudinal axis, the distal end of said catheter body comprising a gripper having a plurality of elongated restraining members near its distal end,

wherein each restraining member extends generally parallel to the longitudinal axis of the catheter and has a proximal portion that is attached to the gripper and a distal portion that is not attached to the gripper, thereby defining a central region located internally of the plurality of restraining members and a longitudinal slot between each adjacent pair of restraining members.

11. The delivery device of claim 10, further comprising an outer member having a plurality of longitudinal slots at a distal end thereof, wherein said gripper is slidably disposed within said tubular member

12. The delivery device of claim 11, wherein said plurality of restraining members have a first position within the interior of a distal end of the outer member and a second position extending outward from the distal end of the outer member.

13. The delivery device of claim 10, wherein said gripper comprises three or more restraining members.

14. The delivery device of claim 10, wherein each of said plurality of restraining members comprises a generally wire loop extending from a first end of said gripper.

15. The delivery device of claim 11, wherein said outer member comprises a rigid tube.

16. The delivery device of claim 11, wherein said outer member comprises a flexible tube.

17. The delivery device of claim 10, further comprising a prosthetic heart valve retained by the restraining members of said gripper.

18. The delivery device of claim 12, further comprising a prosthetic heart valve retained by the restraining members of said gripper.

19. The delivery device of claim 18, wherein said prosthetic heart valve is located within the interior of the outer member when the restraining members of said gripper are in the first position.

20. The delivery device of claim 19, wherein at least a portion of said prosthetic heart valve extends through at least one of the longitudinal slots on said outer member.