Universal modular stent graft assembly to accommodate flow to collateral branches

• US 7,438,721 B2
• Filed: 04/25/2003
• Issued: 10/21/2008
• Est. Priority Date: 04/25/2003
• Status: Expired due to Fees

• Current Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Original Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Inventors: Doig, Scott, Machek, James
• Primary Examiner(s): McDermott; Corrine
• Assistant Examiner(s): Prone; Christopher D
• Application Number:
  US10/423,297
• Publication Number:
  US 20040215327A1
• Time in Patent Office: 2,006 Days
• Field of Search: 623/1.13, 623/1.15, 623/1.16, 623/1.35, 604/8
• US Class Current: 623/1.15
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/852 Two or more distinct overlapping stents
• CPC Class Codes: A61F 2/856 Single tubular stent with a side portal passage
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2002/061 provided with means for allowing access to secondary lumens
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/826 more than one stent being applied sequentially
• CPC Class Codes: A61F 2220/0033 made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
• CPC Class Codes: A61F 2250/0008 for adjusting a position by translation along an axis or two perpendicular axes
• CPC Class Codes: A61F 2250/006 modular
• CPC Class Codes: A61F 2250/0065 telescopic

Abstract

Universal modular stented graft assemblies are assembled, on site, and often in a patient'"'"'s parent artery, from at least two components; a first component and a second component. The first and second components each include a window, or fenestration. The second component couples with the first component by fitting at least partially in the first component to form the universal modular stent graft assembly with an adjustable collateral opening. As the first and second components are assembled, the first and second components are adjusted relative to each other so that the first and second component windows overlap to form a collateral opening whose size is selectable, depending on the overlap, with the desired position and dimensions in the universal modular stent graft assembly.

Claims

1. A universal modular stent graft assembly comprising:

a first component, said first component comprising;

a first component proximal end with a first component proximal end opening;

a first component distal end with a first component distal end opening;

a first component body comprising a graft connecting said first component proximal end and said first component distal end; and

a first component lateral opening formed in said first component body extending from the proximal most end of said first component proximal end, said first component lateral opening defined by a first longitudinal edge of said first component body, a second longitudinal edge of said first component body, and a radial edge of said first component body extending between said first longitudinal edge and said second longitudinal edge;

a second component, said second component comprising;

a second component proximal end with a second component proximal end opening;

a second component distal end with a second component distal end opening;

a second component body comprising a graft connecting said second component proximal end and said second component distal end; and

a second component lateral opening formed in said second component body extending from the distal most end of said second component distal end, said second component lateral opening defined by a first longitudinal edge of said second component body, a second longitudinal edge of said second component body, and a radial edge of said second component body extending between said first longitudinal edge of said second component body and said second longitudinal edge of said second component body;

said second component distal end and at least a portion of said second component body being positioned within said first component proximal end and at least a portion of said first component body to form said universal modular stent graft assembly, said universal modular stent graft assembly being cylindrical and having a proximal end defined by said second component proximal end of said second component and a distal end defined by said first component distal end of said first component; and

an overlap of said second component lateral opening and said first component lateral opening forming a single collateral opening in said universal modular stent graft assembly offset from and in between said proximal end and said distal end of said universal modular stent graft assembly, said second component body covering said first component lateral opening except at said single collateral opening, said first component body covering said second component lateral opening except at said single collateral opening, said single collateral opening being the only collateral opening in said universal modular stent graft assembly.

2. The universal modular stent graft assembly of claim 1, wherein;

said single collateral opening in said universal modular stent graft assembly has a longitudinal position along a longitudinal axis of said universal modular stent graft assembly that is adjustable by moving said second component of said universal modular stent graft assembly with respect to said first component of said universal modular stent graft assembly along said longitudinal axis of said universal modular stent graft assembly.

3. The universal modular stent graft assembly of claim 2, wherein;

said single collateral opening in said universal modular stent graft assembly has a longitudinal dimension along a longitudinal axis of said universal modular stent graft assembly that is adjustable by moving said second component of said universal modular stent graft assembly with respect to said first component of said universal modular stent graft assembly along said longitudinal axis of said universal modular stent graft assembly.

4. The universal modular stent graft assembly of claim 3, wherein;

said single collateral opening in said universal modular stent graft assembly has a radial position about said longitudinal axis of said universal modular stent graft assembly that is adjustable by rotating said second component of said universal modular stent graft assembly with respect to said first component of said universal modular stent graft assembly around said longitudinal axis of said universal modular stent graft assembly.

5. The universal modular stent graft assembly of claim 4, wherein;

said single collateral opening in said universal modular stent graft assembly has a radial dimension about said longitudinal axis of said universal modular stent graft assembly that is adjustable by rotating said second component of said universal modular stent graft assembly with respect to said first component of said universal modular stent graft assembly around said longitudinal axis of said universal modular stent graft assembly.

6. The universal modular stent graft assembly of claim 5, wherein;

said first component body connecting said first component proximal end and said first component distal end further comprises a stent body mesh coupled to said graft of said first component body; and

said second component body connecting said second component proximal end and said second component distal end further comprises a stent body mesh coupled to said graft of said second component body.

7. The universal modular stent graft assembly of claim 6, wherein;

said first component body connecting said first component proximal end and said first component distal end is substantially circularly cylindrical and said first component proximal end opening is substantially circularly cylindrical with a first diameter; and

said second component body connecting said second component proximal end and said second component distal end is substantially circularly cylindrical and said second component proximal end opening is substantially circularly cylindrical with a second diameter, further wherein;

said first diameter is greater than said second diameter.

8. The universal modular stent graft assembly of claim 1 further comprising:

a collateral stent graft structure sealing said single collateral opening.

9. A universal modular stent graft assembly comprising:

a first component, said first component comprising;

a first component proximal end with a first component proximal end opening;

a first component distal end with a first component distal end opening;

a first component body comprising a graft connecting said first component proximal end and said first component distal end; and

a first component lateral opening formed in said first component body extending from the proximal most end of said first component proximal end, said first component lateral opening defined by a first longitudinal edge of said first component body, a second longitudinal edge of said first component body, and a radial edge of said first component body extending between said first longitudinal edge and said second longitudinal edge;

a second component, said second component comprising;

a second component proximal end with a second component proximal end opening;

a second component distal end with a second component distal end opening;

a second component body comprising a graft connecting said second component proximal end and said second component distal end; and

a second component lateral opening formed in said second component body off-set from said distal end of said second component by an off-set distance along a longitudinal axis of said second component body;

said second component distal end and at least a portion of said second component body being positioned within said first component proximal end and at least a portion of said first component body to form said universal modular stent graft assembly, said universal modular stent graft assembly being cylindrical and having a proximal end defined by said second component proximal end of said second component and a distal end defined by said first component distal end of said first component; and

an overlap of said second component lateral opening and said first component lateral opening forming a single collateral opening in said universal modular stent graft assembly offset from and in between said proximal end and said distal end of said universal modular stent graft assembly, said second component body covering said first component lateral opening except at said single collateral opening, said first component body covering said second component lateral opening except at said single collateral opening, said single collateral opening being the only collateral opening in said universal modular stent graft assembly.

10. The universal modular stent graft assembly of claim 9, wherein;

said single collateral opening in said universal modular stent graft assembly has a longitudinal position along a longitudinal axis of said universal modular stent graft assembly that is adjustable by moving said second component of said universal modular stent graft assembly with respect to said first component of said universal modular stent graft assembly along said longitudinal axis of said universal modular stent graft assembly.