VENOUS VALVE, SYSTEM, AND METHOD WITH SINUS POCKET

• US 20160022421A1
• Filed: 10/07/2015
• Published: 01/28/2016
• 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: Hill, Jason P., Shoemaker, Susan M., Haverkost, Patrick A.
• Granted Patent: US 9,474,609 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 valve with a frame and valve leaflets that provide a sinus pocket. The valve provides for unidirectional flow of a liquid through the valve.

Claims

1. (canceled)

2. A valve for implantation within a body lumen, comprising:

an elongate valve frame configured to shift between a collapsed configuration and an expanded configuration, wherein the valve frame is configured to exert a radially outward force against a wall of the body lumen in the expanded configuration;

a first valve leaflet and a second valve leaflet attached to the valve frame and defining a lumen through the valve, the first and second valve leaflets having an open configuration configured to permit flow of a bodily fluid therethrough and a closed configuration configured to restrict flow of the bodily fluid therethrough;

wherein an outer surface of the valve frame defines a cross-sectional area of the valve having a non-circular shape in the expanded configuration.

3. The valve of claim 2, wherein the radially outward force prevents retrograde flow of the bodily fluid around the outer surface the valve frame when the first valve leaflet and the second valve leaflet are in the closed configuration.

4. The valve of claim 2, wherein the non-circular shape is defined by a first dimension and a second dimension each measured perpendicular to a central longitudinal axis of the lumen through the valve, wherein the first dimension is greater than the second dimension.

5. The valve of claim 4, wherein the non-circular shape is ovoid.

6. The valve of claim 2, wherein the valve is configured to resiliently radially collapse and expand for percutaneous delivery within a delivery catheter.

7. The valve of claim 2, wherein the valve frame is configured for repeatable travel between the collapsed configuration and the expanded configuration.

8. The valve of claim 2, wherein the first valve leaflet and the second valve leaflet define a commissure that reversibly opens and closes for unidirectional flow of the bodily fluid therethrough.

9. The valve of claim 2, wherein the first valve leaflet and the second valve leaflet each have a free edge, the free edges defining a circumference that is less than a circumference of the valve frame in the open configuration.

10. The valve of claim 9, wherein the free edges have a planar configuration.

11. The valve of claim 9, wherein the free edges have a non-planar configuration.

12. The valve of claim 2, wherein a surface of the first valve leaflet is configured to contact a surface of the second valve leaflet in the closed configuration to define a commissure, wherein a predetermined portion of the surfaces of the valve leaflets that contact to define the commissure extend parallel to a central longitudinal axis of the valve in the closed configuration.

13. The valve of claim 2, wherein first valve leaflet and the second valve leaflet define a semi-tubular structure having an oval cross-section in the open configuration.

14. The valve of claim 2, wherein the valve is configured to replace an existing valve structure within the body lumen.

15. The valve of claim 2, wherein the valve is configured to augment an existing valve structure within the body lumen.