ADVANCED ENDOVASCULAR GRAFT

• US 20170348087A1
• Filed: 08/25/2017
• Published: 12/07/2017
• Est. Priority Date: 12/20/2001
• Status: Active Grant

• Current Assignee: Endologix
• Original Assignee: Trivascular Incorporated
• Inventors: Chobotov, Michael V., Whirley, Robert G.
• Granted Patent: US 10,470,871 B2
• Time in Patent Office: Days
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/844 folded prior to deployment
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/065 Y-shaped blood vessels
• CPC Class Codes: A61F 2002/072 Encapsulated stents, e.g. wire or whole stent embedded in lining
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/825 having longitudinal struts
• CPC Class Codes: A61F 2002/8486 provided on at least one of the ends
• CPC Class Codes: A61F 2002/91508 the meander having a difference in amplitude along the band
• CPC Class Codes: A61F 2002/91516 the meander having a change in frequency along the band
• CPC Class Codes: A61F 2002/91558 connected peak to peak
• CPC Class Codes: A61F 2002/91583 by a bridge, whereby at least one of its ends is connected along the length of a strut between two consecutive apices within a band
• CPC Class Codes: A61F 2002/9505 having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0058 : soldered or brazed or welded
• CPC Class Codes: A61F 2250/0003 : having an inflatable pocket filled with fluid, e.g. liquid or gas
• CPC Class Codes: A61F 2250/0036 : differing in thickness
• CPC Class Codes: A61M 2025/0177 : having external means for receiving guide wires, wires or stiffening members, e.g. loops, clamps or lateral tubes

Abstract

This invention is a system for the treatment of body passageways; in particular, vessels with vascular disease. The system includes an endovascular graft with a low-profile delivery configuration and a deployed configuration in which it conforms to the morphology of the vessel or body passageway to be treated as well as various connector members and stents. The graft is made from an inflatable graft body section and may be bifurcated. One or more inflatable cuffs may be disposed at either end of the graft body section. At least one inflatable channel is disposed between and in fluid communication with the inflatable cuffs.

Claims

1-71. -71. (canceled)

72. An endovascular graft comprising:

a continuous bifurcated graft comprising a main body portion having a proximal open end and an opposed distal portion having first and second bifurcated portions having open ends to define a first distal leg and a second distal leg;

wherein the first distal leg has a first longitudinal length and the second distal leg has a second longitudinal length; and

wherein the first longitudinal length is different from the second longitudinal length.

73. The endovascular graft of claim 72, further comprising an inflatable proximal circumferential cuff disposed about a proximal portion of the main body portion near the proximal open end.

74. The endovascular graft of claim 73, further comprising:

a plurality inflatable circumferential channels disposed about portions of the first distal leg in a first pattern; and

a plurality inflatable circumferential channels disposed about portions of the second distal leg in a second pattern.

75. The endovascular graft of claim 74, further comprising:

a first inflatable longitudinal channel in fluid communication with the plurality inflatable circumferential channels of the first distal leg and the inflatable proximal circumferential cuff; and

a second inflatable longitudinal channel in fluid communication with the plurality inflatable circumferential channels of the second distal leg and the inflatable proximal circumferential cuff.

76. The endovascular graft of claim 72, wherein the first pattern of the plurality inflatable circumferential channels of the first distal leg is different from the second pattern of the plurality inflatable circumferential channels of the second distal leg.

77. The endovascular graft of claim 72, wherein a distance between the plurality inflatable circumferential channels of the first distal leg is constant.

78. The endovascular graft of claim 72, wherein a distance between the plurality inflatable circumferential channels of the first distal leg varies along the first longitudinal length of the first distal leg.

79. The endovascular graft of claim 72, wherein a distance between the plurality inflatable circumferential channels of the second distal leg is constant.

80. The endovascular graft of claim 72, wherein a distance between the plurality inflatable circumferential channels of the second distal leg varies along the second longitudinal length of the second distal leg.

81. The endovascular graft of claim 72, wherein a width of each of the plurality inflatable circumferential channels of the first distal leg is constant.

82. The endovascular graft of claim 72, wherein a width of each of the plurality inflatable circumferential channels of the first distal leg varies along the first longitudinal length of the first distal leg.

83. The endovascular graft of claim 72, wherein a width of each of the plurality inflatable circumferential channels of the second distal leg is constant.

84. The endovascular graft of claim 72, wherein a width of each of the plurality inflatable circumferential channels of the second distal leg varies along the second longitudinal length of the second distal leg.

85. The endovascular graft of claim 72, further comprising a second inflatable proximal circumferential cuff.

86. The endovascular graft of claim 72, further comprising a proximal stent securably disposed at the proximal open end of the main body portion.

87. The endovascular graft of claim 72, wherein the main body portion and the first and second distal legs are of a unitary construction defining a continuous bifurcated lumen.

88. The endovascular graft of claim 72, wherein the main body portion and the first and second distal legs comprise material selected from the group consisting of ultra high molecular weight polyethylene, polyesters and polytetrafluoroethylene.

89. An endovascular graft comprising:

a continuous bifurcated graft comprising a main body portion having a proximal open end and an opposed distal portion having first and second bifurcated portions having open ends to define a first distal leg and a second distal leg;

an inflatable proximal circumferential cuff disposed about a proximal portion of the main body portion near the proximal open end;

a plurality inflatable circumferential channels disposed about portions of the first distal leg in a first pattern;

a plurality inflatable circumferential channels disposed about portions of the second distal leg in a second pattern

a first inflatable longitudinal channel in fluid communication with the plurality inflatable circumferential channels of the first distal leg and the inflatable proximal circumferential cuff; and

a second inflatable longitudinal channel in fluid communication with the plurality inflatable circumferential channels of the second distal leg and the inflatable proximal circumferential cuff

wherein the first distal leg has a first longitudinal length and the second distal leg has a second longitudinal length;

wherein the first longitudinal length is different from the second longitudinal length; and

wherein the first pattern of the plurality inflatable circumferential channels of the first distal leg is different from the second pattern of the plurality inflatable circumferential channels of the second distal leg.

90. The endovascular graft of claim 89,

wherein a distance between the plurality inflatable circumferential channels of the first distal leg is constant or varies along the first longitudinal length of the first distal leg;

and

wherein a distance between the plurality inflatable circumferential channels of the first distal leg is constant or varies along the second longitudinal length of the second distal leg.

91. The endovascular graft of claim 89,

wherein a width of each of the plurality inflatable circumferential channels of the first distal leg is constant or varies along the first longitudinal length of the first distal leg;

and

wherein a width of each of the plurality inflatable circumferential channels of the second distal leg is constant or varies along the second longitudinal length of the second distal leg.