Minimally invasive valve replacement system

• US 20050075730A1
• Filed: 10/06/2003
• Published: 04/07/2005
• Est. Priority Date: 10/06/2003
• Status: Abandoned Application

• Current Assignee: Douglas S. Cali, Jason Artof, Keith E. Myers
• Original Assignee: Douglas S. Cali, Jason Artof, Keith E. Myers
• Inventors: Myers, Keith E., Cali, Douglas S., Artof, Jason
• Application Number:
  US10/680,070
• Publication Number:
  US 20050075730A1
• Time in Patent Office: Days
• US Class Current: 623/2.180
• 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. A valve assembly, comprising:

a replacement valve; and

a collapsible and expandable anchoring structure,

said anchoring structure being dimensioned to lodge inside a valve sinus.

2. The valve assembly of claim 54, wherein said anchoring structure comprises a plurality of elliptical segments joined side by side to form junctures.

3. The valve assembly of claim 55, wherein said junctures define longitudinal support post areas.

4. The valve assembly of claim 56, wherein said longitudinal support post areas are configured to coincide with the sinus commissural posts.

5. The valve assembly of claim 55, wherein said elliptical segments flare outwardly at the inflow and outflow ends.

6. The valve assembly of claim 55, wherein said elliptical segments are joined by a double crimp.

7. The valve assembly of claim 54, wherein said elliptical segment anchoring structure is made of a material with a high modulus of elasticity.

8. The valve assembly of claim 55, wherein the outflow ends of said elliptical segments are removed and the distal ends of the junctures between elliptical segments are formed into prongs.

9. The valve assembly of claim 54, wherein said elliptical segment anchoring structure is made from one piece of tubing.

10. The valve assembly of claim 61, wherein said elliptical segment anchoring structure comprises a plurality of support posts.

11. The valve assembly of claim 62, wherein said support posts comprise axial slots oriented toward the outflow end.

12. The valve assembly of claim 63, wherein said support posts comprise a plurality of suture bores.

13. The valve assembly of claim 62, wherein said support posts are configured to coincide longitudinally with the sinus commissural posts.