Venous valve, system, and method with sinus pocket

• US 7,569,071 B2
• Filed: 09/21/2005
• Issued: 08/04/2009
• Est. Priority Date: 09/21/2005
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Shoemaker, Susan M., Hill, Jason P., Haverkost, Patrick A.
• Primary Examiner(s): Isabella; David
• Assistant Examiner(s): Ganesan; Suba
• Application Number:
  US11/232,403
• Publication Number:
  US 20070067021A1
• Time in Patent Office: 1,413 Days
• Field of Search: 623 124- 126, 623/2.14, 623/2.17, 623/2.18, 623 13- 131
• US Class Current: 623/1.24
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/2475 Venous valves
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• 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 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2220/0066 stapled
• CPC Class Codes: A61F 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: Y10T 29/49405 Valve or choke making

Abstract

A venous valve with a frame and valve leaflets that provide a sinus pocket. The venous valve provides for unidirectional flow of a liquid through the valve.

Claims

1. A venous valve frame, comprising:

a first structural member that defines an elongate base portion having a first end, a second end, and an outer surface concentrically arranged relative a longitudinal axis, where the outer surface provides at least two points of a perimeter of a first elliptical plane orthogonal to and passing through the longitudinal axis, and where the first structural member at each of the first end and the second end includes a first curve and a second curve opposite the first curve with the first curve and the second curve of the first end positioned radially orthogonal to the first curve and the second curve of the second end of the base portion;

a second structural member that extends between the first end and the second end of the elongate base portion to define a bulbous portion, where the outer surface of the elongate base portion and the second structural member provide at least four points of a perimeter of a plane orthogonal to the longitudinal axis, where the plane has an area that is greater than the area of the first elliptical plane; and

a valve leaflet connection location along the first structural member of the venous valve frame.

2. The valve frame of claim 1, where the perimeter of the plane for the bulbous portion-defines an elliptical shape.

3. The valve frame of claim 2, where the first structural member defines a first axis of the elliptical shape and the second structural member defines a second axis of the elliptical shape that is twenty percent (20%) to fifty percent (50%) greater than the first axis.

4. The valve frame of claim 2, where the first structural member defines a first axis of the elliptical shape and the second structural member defines a second axis of the elliptical shape that is one (1) to four (4) millimeters greater than the length of the first axis.

5. The valve frame of claim 1, where the perimeter of the plane for the bulbous portion defines a round shape.

6. The valve frame of claim 1, where the first curve and the second curve flare away from a center longitudinal axis.

7. A valve frame of claim 1, where the first structural member includes surfaces defining a first opening and a second opening for the valve leaflet connection location, where the first and second openings are adjacent a region of the bulbous portion of the valve frame and positioned opposite each other along a common axis.

8. The venous valve frame of claim 1, where the first elliptical plane is a circular plane.

9. A venous valve frame, comprising:

a structural member that includes an elongate base portion and a bulbous portion,

the elongate base portion having an outer surface concentrically arranged relative a longitudinal axis, where the outer surface provides points of a perimeter of a first elliptical plane orthogonal to and passing through the longitudinal axis, and having at each of a first end and a second end of the elongate base portion a first curve and a second curve opposite the first curve, where the first curve and the second curve of the first end is positioned radially orthogonal to the first curve and the second curve of the second end of the base portion; and

the bulbous portion defined by a portion of the outer surface of the elongate base portion and a second structural member, where the outer surface and the second structural member provide points of a perimeter of a plane orthogonal to and passing through the longitudinal axis, where the plane has an area that is greater than the area of the first elliptical plane; and

a valve leaflet connection location along the structural member of the venous valve frame.

10. The venous valve frame of claim 9, where the bulbous portion provides a surface that defines a sinus pocket.

11. The venous valve frame of claim 10, where the sinus pocket provides a dilated channel as compared to the elongate base portion of the venous valve frame.

12. The venous valve frame of claim 9, where the first elliptical plane is a circular plane.