Venous Valve, System, and Method

• US 20150209146A1
• Filed: 04/03/2015
• Published: 07/30/2015
• Est. Priority Date: 06/10/2005
• Status: Abandoned Application

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Shoemaker, Susan M., Kokate, Jaydeep Y., Hill, Jason P
• Application Number:
  US14/678,430
• Publication Number:
  US 20150209146A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2412 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 2/2475 Venous valves
• 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 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers

Abstract

A venous valve with a frame and a cover on the frame for unidirectional flow of a liquid through the valve.

Claims

1-41. -41. (canceled)

42. A valve comprising:

a frame comprising;

a first ring, the first ring comprising end turns, ring turns, and a plurality of struts, each strut extending between an end turn and a ring turn of the first ring, wherein the end turns of the first ring define a first end of the frame;

a second ring, the second ring comprising end turns, ring turns, and a plurality of struts, each strut extending between an end turn and a ring turn of the second ring, wherein the end turns of the second ring define a second end of the frame;

longitudinal frame members extending between ring turns of the first ring and ring turns of the second ring;

at least two leaflets engaged to the frame at the second ring, the leaflets defining a reversibly sealing opening disposed between the ring turns of the first ring and the ring turns of the second ring.

43. The valve of claim 42, wherein the leaflets engage at least one longitudinal frame member.

44. The valve of claim 42, wherein the frame defines an inner surface and an outer surface, and wherein at least a portion of the leaflets extend over the outer surface of the frame.

45. The valve of claim 42, wherein the frame'"'"'s length is greater than the length of the leaflets.

46. The valve of claim 42, wherein the frame further comprises a first leaflet connection region and a second leaflet connection region, and wherein radial expansion of the frame increases a distance between the first leaflet connection region and the second leaflet connection region.

47. The valve of claim 42, wherein the opening, when fully open, has a circumference that is smaller than an inner circumference of the first ring.

48. The valve of claim 42, wherein the first ring has a radial flare that provides an increase in a peripheral frame dimension.

49. The valve of claim 42, wherein each of the first and second rings defines a central axis that passes through the frame.

50. The valve of claim 42, wherein the at least 2 leaflets comprises at least 3 leaflets.

51. The valve of claim 42, wherein the leaflet opening is for unidirectional flow of a fluid through the valve.

52. A valve comprising:

a frame comprising;

a first ring, the first ring comprising end turns, ring turns, and a plurality of struts, each strut extending between an end turn and a ring turn of the first ring, wherein the end turns of the first ring define a first end of the frame;

a second ring, the second ring comprising end turns, ring turns, and a plurality of struts, each strut extending between an end turn and a ring turn of the second ring, wherein the end turns of the second ring define a second end of the frame;

longitudinal frame members extending between ring turns of the first ring and ring turns of the second ring;

leaflets engaged to the frame at the second ring, the leaflets defining a reversibly sealing opening disposed between the ring turns of the first ring and the ring turns of the second ring.

53. The valve of claim 52, wherein the longitudinal frame members are curved.

54. The valve of claim 52, wherein the leaflets engage at least one longitudinal frame member.

55. The valve of claim 52, wherein the frame has an inner surface and an outer surface, and wherein at least a portion of the leaflets extend over the outer surface of the frame.

56. The valve of claim 52, wherein the frame further comprises a first leaflet connection region and a second leaflet connection region, and wherein radial expansion of the frame increases a distance between the first leaflet connection region and the second leaflet connection region.

57. A valve comprising:

a unitary frame comprising;

a first ring, the first ring comprising end turns, ring turns, and a plurality of struts, each strut extending between an end turn and a ring turn of the first ring, wherein the end turns of the first ring define a first end of the frame;

a second ring, the second ring comprising end turns, ring turns, and a plurality of struts, each strut extending between an end turn and a ring turn of the second ring, wherein the end turns of the second ring define a second end of the frame;

a cover engaged to the frame at the second ring, the cover providing leaflets defining a reversibly sealing opening disposed between the ring turns of the first ring and the ring turns of the second ring.

58. The valve of claim 57, wherein the leaflets engage the frame at a location between the first and second rings.

59. The valve of claim 57, wherein the opening, when fully open, has a circumference that is smaller than an inner circumference of the first ring.

60. The valve of claim 57, wherein the first ring has a radial flare that provides an increase in a peripheral frame dimension.

61. The valve of claim 57, wherein the frame further comprises a first leaflet connection region and a second leaflet connection region, and wherein the leaflets engage the at least first and second leaflet connection regions.