Systems and methods for delivering a medical implant

• US 7,988,724 B2
• Filed: 02/14/2007
• Issued: 08/02/2011
• Est. Priority Date: 12/23/2003
• Status: Expired due to Fees

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Sadra Medical, Inc. (Boston Scientific Corporation)
• Inventors: Brandt, Brian D., Valencia, Hans F., Morejohn, Dwight P., Hildebrand, Daniel, Argento, Claudio, Haug, Ulrich R., Salahieh, Amr, Dueri, Jean-Pierre, Saul, Tom
• Primary Examiner(s): Stewart; Alvin J.
• Application Number:
  US11/706,549
• Publication Number:
  US 20070203503A1
• Time in Patent Office: 1,630 Days
• Field of Search: 623/1.15, 623/2.11, 623/2.12, 623/2.14, 623/2.18, 623/1.24, 623/1.26
• US Class Current: 623/2.12
• 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 delivery system adapted to deliver a medical implant though a body lumen and release the medical implant at a location within the body, the delivery system comprising:

a plurality of actuatable elements releasably coupled to the medical implant during delivery of the medical implant, wherein the medical implant comprises an expandable element and a plurality of non-expandable elements secured to the expandable element, wherein the plurality of non-expandable elements are disposed on a proximal end of the expandable element such that the plurality of actuatable elements are releasably coupled to a proximal end of the medical implant, wherein the plurality of actuatable elements are releasably coupled to the plurality of non-expandable elements, and wherein the expandable element comprises a braided material comprising wire segments that slide with respect to one another as the expandable element expands from a delivery configuration.

2. The system of claim 1 wherein the plurality of actuatable elements are adapted to apply an actuatable force on the non-expandable elements to deploy the expandable element.

3. The system of claim 1 wherein the plurality of actuatable elements are rigid elements.

4. The system of claim 1 wherein the expandable element is an expandable anchor, and wherein the medical implant further comprises a plurality of leaflets.

5. The system of claim 1 wherein the plurality of actuatable components are adapted to remain releasably coupled to the plurality of non-expandable elements after the expandable element has been released from within an elongate delivery member.

6. A delivery system adapted to deliver a medical implant though a body lumen and release the medical implant at a location within the body, the delivery system comprising:

a plurality of actuatable elements releasably coupled to the medical implant during delivery of the medical implant, wherein the medical device comprises an expandable element and a plurality of non-expandable elements secured to the expandable element, wherein the plurality of non-expandable elements are disposed on a proximal end of the expandable element such that the plurality of actuatable elements are releasably coupled to a proximal end of the medical implant, wherein the plurality of actuatable elements are releasably coupled to the plurality of non-expandable elements, and wherein the plurality of actuatable elements are adapted to apply a distally directed actuation force on the proximal end of the medical implant to deploy the medical implant.

7. A delivery system adapted to deliver a medical implant though a body lumen and release the medical implant at a location within the body, the delivery system comprising:

a plurality of actuatable elements releasably coupled to the medical implant during delivery of the medical implant, wherein the medical device comprises an expandable element and a plurality of non-expandable elements secured to the expandable element, wherein the plurality of non-expandable elements are a first plurality of locking elements adapted to lockingly engage with a second plurality of locking elements to maintain the expandable element in an expanded configuration.

8. A delivery system adapted to deliver a medical implant though a body lumen and release the medical implant at a location within the body, the delivery system comprising:

a plurality of actuatable elements releasably coupled to the medical implant during delivery of the medical implant, wherein the medical device comprises an expandable element and a plurality of non-expandable elements secured to the expandable element, wherein the plurality of non-expandable elements are a first plurality of locking elements adapted to lockingly engage with a second plurality of locking elements to maintain the expandable element in an foreshortened configuration.

9. A replacement heart valve system, comprising

a replacement heart valve comprising an expandable element, a plurality of leaflets, and a plurality of non-expandable elements secured to a proximal portion of the expandable element;

a delivery system comprising a plurality of actuatable elements releasably coupled to the plurality of non-expandable elements, wherein the plurality of non-expandable elements are a first plurality of locking elements adapted to lockingly engage a second plurality of locking components that are disposed distal to the first plurality of locking elements to lock the expandable element in a foreshortened configuration.

10. The system of claim 9 wherein the plurality of actuation elements are adapted to remain releasably coupled to the plurality of non-expandable elements after the expandable element had been released from within an elongate delivery member.