Systems and methods for delivering a medical implant

• US 10,413,409 B2
• Filed: 12/30/2016
• Issued: 09/17/2019
• Est. Priority Date: 12/23/2003
• Status: Expired due to Term

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Salahieh, Amr, Valencia, Hans F., Brandt, Brian D., Argento, Claudio, Haug, Ulrich R., Dueri, Jean-Pierre, Hildebrand, Daniel K., Morejohn, Dwight P., Saul, Tom
• Primary Examiner(s): Stewart, Alvin J
• Application Number:
  US15/395,569
• Publication Number:
  US 20170196689A1
• Time in Patent Office: 991 Days
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 2017/22035 for retrieving or repositioning foreign objects
• CPC Class Codes: A61B 2017/2215 having an open distal end
• 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 2/2427 Devices for manipulating or deploying heart valves during implantation
• 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 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2002/9534 for repositioning of stents
• 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 2220/0025 Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0078 hyperboloidal
• CPC Class Codes: A61F 2230/008 : paraboloidal
• CPC Class Codes: A61F 2250/001 : for adjusting a diameter

Abstract

The present invention relates to apparatus and methods for endovascularly delivering and releasing a prosthesis, e.g., an aortic prosthesis, within and/or across a patient'"'"'s native heart valve, referred to hereinafter as replacing the patient'"'"'s heart valve. In some embodiments the delivery system comprises a plurality of first actuatable element adapted to engage a plurality of second elements in a first configuration to capture the implant within the delivery system, and wherein the plurality of first actuatable element are adapted to engage the plurality of second elements in a second configuration and to release the implant from the delivery system.

Claims

1. A replacement heart valve system, comprising:

a replacement heart valve implant including an expandable anchor member and a plurality of valve leaflets attached to the anchor member;

a delivery catheter; and

an elongate inner member axially movably disposed within the delivery catheter, the elongate inner member including a plurality of fingers extending distally therefrom;

wherein the plurality of fingers each include an implant interface for releasably capturing a portion of the expandable anchor member, wherein the implant interface is a void formed within its respective finger, wherein at least a portion of each of the plurality of fingers extends radially inward of the expandable anchor member when the expandable anchor member is captured by the plurality of fingers.

2. The replacement heart valve system of claim 1, wherein the proximal portion of the expandable anchor member extends through each of the plurality of fingers when the expandable anchor member is captured by the plurality of fingers.

3. The replacement heart valve system of claim 1, wherein the implant interface is oriented to face radially outward.

4. The replacement heart valve system of claim 1, wherein the plurality of fingers is configured to deflect radially outward as the expandable anchor member expands from a collapsed configuration to a deployed configuration.

5. The replacement heart valve system of claim 1, further comprising a release actuator configured to prevent release of the expandable anchor member from the plurality of fingers in a distal position and configured to permit release of the expandable anchor member from the plurality of fingers in a proximal position.

6. The replacement heart valve system of claim 1, further comprising a plurality of collars, each collar being disposed about and slidably engaged with a distal portion of one of the plurality of fingers.

7. The replacement heart valve system of claim 6, wherein each collar cooperates with the implant interface of its respective finger to define a space having a fixed shape for releasably capturing the portion of the expandable anchor member.

8. The replacement heart valve system of claim 7, wherein each collar is configured to slide along its respective finger between a first position and a second position, the first position preventing release of the expandable anchor member and the second position permitting release of the expandable anchor member.

9. The replacement heart valve system of claim 1, wherein the elongate inner member is slidably disposed within the delivery catheter.

10. A replacement heart valve system, comprising:

a replacement heart valve implant including an expandable anchor member and a plurality of valve leaflets disposed within and attached to the anchor member;

a delivery catheter; and

an elongate inner member axially movably disposed within the delivery catheter, the elongate inner member including a plurality of fingers extending distally therefrom;

wherein the plurality of fingers each include an implant interface for releasably capturing a portion of the expandable anchor member, wherein the implant interface is a void formed within its respective finger, wherein at least a portion of each of the plurality of fingers is disposed radially inward of a body portion of the expandable anchor member when the expandable anchor member is captured by the plurality of fingers.

11. The replacement heart valve system of claim 10, wherein the proximal portion of the expandable anchor member extends through each of the plurality of fingers when the expandable anchor member is captured by the plurality of fingers.

12. The replacement heart valve system of claim 10, wherein the implant interface is oriented to face radially outward.

13. The replacement heart valve system of claim 10, wherein the plurality of fingers is configured to deflect radially outward as the expandable anchor member expands from a collapsed configuration to a deployed configuration.

14. The replacement heart valve system of claim 10, further comprising a release actuator configured to prevent release of the expandable anchor member from the plurality of fingers in a distal position and configured to permit release of the expandable anchor member from the plurality of fingers in a proximal position.

15. The replacement heart valve system of claim 10, further comprising a plurality of collars, each collar being disposed about and slidably engaged with a distal portion of one of the plurality of fingers.

16. The replacement heart valve system of claim 15, wherein each collar cooperates with the implant interface of its respective finger to define a space having a fixed shape for releasably capturing the portion of the expandable anchor member.

17. The replacement heart valve system of claim 15, wherein each collar is configured to slide along its respective finger between a first position and a second position, the first position preventing release of the expandable anchor member and the second position permitting release of the expandable anchor member.

18. The replacement heart valve system of claim 10, wherein the elongate inner member is slidably disposed within the delivery catheter.