Minimally invasive valve replacement system

• US 20050075712A1
• Filed: 10/06/2003
• Published: 04/07/2005
• Est. Priority Date: 10/06/2003
• Status: Abandoned Application

• Current Assignee: Brian A. Biancucci, Keith E. Myers
• Original Assignee: Brian A. Biancucci, Keith E. Myers
• Inventors: Myers, Keith E., Biancucci, Brian
• Application Number:
  US10/680,719
• Publication Number:
  US 20050075712A1
• Time in Patent Office: Days
• US Class Current: 623/1.110
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/243 Deployment by mechanical expansion
• CPC Class Codes: A61F 2/2439 Expansion controlled by filaments
• CPC Class Codes: A61F 2/2496 Devices for determining the dimensions of the prosthetic valve to be implanted, e.g. templates, sizers
• CPC Class Codes: A61F 2210/0019 operated at only one temperature whilst inside or touching the human body, e.g. constrained in a non-operative shape during surgery, another temperature only occurring before the operation
• CPC Class Codes: A61F 2210/0028 cooled
• 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 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0066 stapled
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2250/0059 temporary

Abstract

Methods and systems for minimally invasive replacement of a valve. The system includes a collapsible valve and anchoring structure, devices and methods for expanding the valve anchoring structure, adhesive means to seal the valve to the surrounding tissue, a catheter-based valve sizing and delivery system, native valve removal means, and a temporary valve and filter assembly to facilitate removal of debris material. The valve assembly comprises a valve and anchoring structure for the valve, dimensioned to fit substantially within the valve sinus.

Claims

1. An expansion and contraction device for implanting a valve assembly, comprising:

a plurality of hollow wires;

a grip handle; and

a cylinder comprising outwardly angled holes along its perimeter.

2. The expansion and contraction device of claim 1, wherein said valve assembly comprises a replacement valve and anchoring structure.

3. The expansion and contraction device of claim 2, wherein said valve is positioned internally to said anchoring structure.

4. The valve assembly of claim 3, wherein said valve comprises an inflow annulus, an outflow annulus, and a plurality of leaflets.

5. The valve assembly of claim 4, wherein said inflow annulus is scalloped.

6. The expansion and contraction device of claim 1, wherein said wires are inserted in said angled holes.

7. The expansion and contraction device of claim 6, wherein said wires form a circle.

8. The expansion and contraction device of claim 7, wherein said circle is expanded by pushing the wires through said angled holes.

9. An expansion and contraction device for implanting a valve assembly, comprising:

a hollow tube with an interior wall and an exterior wall;

a plurality of wall panels;

a plurality of springs connected thereto by a plurality of connecting wires;

and a plurality of spindles.

10. The expansion and contraction device of claim 9, wherein said valve assembly comprises a replacement valve and anchoring structure.

11. The expansion and contraction device of claim 10, wherein said valve is positioned internally to said anchoring structure.

12. The valve assembly of claim 11, wherein said valve comprises an inflow annulus, an outflow annulus, and a plurality of leaflets.

13. The valve assembly of claim 12, wherein said inflow annulus is scalloped.

14. The expansion and contraction device of claim 9, wherein said connecting wires are routed through holes in said tube and through said springs to connect at the center of said tube.

15. The expansion and contraction device of claim 9, wherein said wall panels are pushed outwardly upon releasing tension in the connecting wires.

16. An expansion and contracting device for implanting a valve assembly comprising a hollow tube surrounded by a plurality of wall panels connected to a plurality of spring loaded pins extending from the exterior of the tube to a central plate at the interior of the tube, said central plate having spiral shaped edges, such that rotation of the central plate pushes the pins radially outward.

17. The expansion and contraction device of claim 16, wherein said valve assembly comprises a replacement valve and anchoring structure.

18. The expansion and contraction device of claim 17, wherein said valve is positioned internally to said anchoring structure.

19. The valve assembly of claim 18, wherein said valve comprises an inflow annulus, an outflow annulus, and a plurality of leaflets.

20. The valve assembly of claim 19, wherein said inflow annulus is scalloped.