Stent graft repair device
09770320 · 2017-09-26
Assignee
Inventors
Cpc classification
A61F2220/0008
HUMAN NECESSITIES
A61F2220/0075
HUMAN NECESSITIES
A61F2/848
HUMAN NECESSITIES
A61F2002/072
HUMAN NECESSITIES
A61F2002/075
HUMAN NECESSITIES
A61F2230/0013
HUMAN NECESSITIES
A61F2220/0016
HUMAN NECESSITIES
A61F2/89
HUMAN NECESSITIES
A61F2002/826
HUMAN NECESSITIES
A61F2002/061
HUMAN NECESSITIES
International classification
Abstract
A repair device (10) for affixing a migrating stent graft (30) to the interior surface of a vessel wall (31). The repair device includes tubular graft (11) with a bare or uncovered stent (16) affixed to the proximal end (12). The bare stent includes a plurality of distally pointed barbs (17) for securing the repair device to a vessel wall. A second stent (15) is positioned in the passage (14) of the tubular graft to expand the graft against the interior surface of the migrating stent graft (30). Proximally pointing barbs (20) are affixed to the struts of the second stent and extend through the graft material for securing the repair device to the migrating stent graft. Biological glue (22) and other sealing material (23) can be applied to the tubular graft and/or stents for sealing the repair device against the vessel wall and/or the interior of the migrating stent graft.
Claims
1. A stent graft repair device, for repairing a pre-existing stent graft in a body vessel, comprising: a tubular graft of biocompatible graft material having a proximal end, a distal end and; a passage extending longitudinally therethrough a first expandable stent at the proximal end of the tubular graft and extending beyond the graft material at the proximal end; the first expandable stent having a first plurality of barbs attached thereto and extending longitudinally therealong and pointing in a direction toward the distal end of the tubular graft, wherein the barbs extend beyong the proximal end of the graft material, and a second expandable stent disposed on an interior surface of the tubular graft and within the passage of the tubular graft, the second expandable stent having a second plurality of barbs attached thereto and extending longitudinally therealong and pointing in a direction toward the proximal end of the tubular graft, wherein the second plurality of barbs protrude through the tubular graft and are configured to engage graft material at a proximal end of the pre-existing stent graft.
2. The stent graft repair device of claim 1, wherein the tubular graft has a diameter extending across the passage and ranging in size from 15 to 35 millimeters.
3. The stent graft repair device of claim 1, wherein the second plurality of barbs points radially inwardly when the repair device is in a compressed condition.
4. The stent graft repair device of claim 1, further comprising a biological glue on a surface of the second expandable stent.
5. The stent graft repair device of claim 1, further comprising a sealing material around the second expandable stent.
6. The stent graft repair device of claim 5, wherein the sealing material comprises at least one of a polymer felt, a frayed edge, and a cuff.
7. The stent graft repair device of claim 5, wherein the sealing material is disposed at an edge of the second expandable stent.
8. The stent graft repair device of claim 1, further comprising a sealing material disposed on the tubular graft and between the first and the second expandable stents.
9. The stent graft repair device of claim 1, further comprising a third expandable stent disposed on the interior surface and in the passage of the tubular graft.
10. The stent graft repair device of claim 1, wherein the second plurality of barbs are staggered longitudinally around the second expandable stent.
11. The stent graft repair device of claim 1, wherein the tubular graft includes a wall and at least one opening or fenestration extending through the wall.
12. The stent graft repair device of claim 1, wherein the tubular graft includes a wall and at least one cut out or scallop at an end of the wall.
13. A stent graft repair device for repairing a pre-existing stent graft previously placed in a body vessel, comprising: a tubular graft having a proximal end, a distal end, and a passage extending longitudinally therethrough; a first expandable stent at a first one of the distal and the proximal ends of the tubular graft and extending beyond the first one of the distal and the proximal ends of the tubular graft, the first expandable stent having a first plurality of barbs attached thereto and extending longitudinally therealong and pointing in a first direction toward the other end of the at least one of the distal and the proximal ends of the tubular graft, wherein the barbs extend beyond the first one of the distal and proximal ends of sthe qraft, and a second expandable stent disposed on an interior surface and within the passage of the tubular graft, and having a second plurality of barbs attached thereto and extending longitudinally therealong and pointing in a direction toward the first one of the distal and proximal ends of the tubular graft, wherein the tubular graft includes a wall with an aperture at or adjacent first one of the distal and the proximal ends of the tubular graft, and wherein the second plurality of barbs protrude through the tubular graft and are configured to engage an internal surface of the pre-existing graft at an end of the pre-existing stent graft.
14. The stent graft repair device of claim 13, wherein the tubular graft has a diameter extending across the passage and ranging in size from 15 to 35 millimeters.
15. The stent graft repair device of claim 13, wherein the second plurality of barbs points towards said passage when the repair device is in a compressed condition.
16. A stent graft repair device for repairing a pre-existing stent graft previously placed in a body vessel, a tubular graft having a proximal end, a distal end, and a passage extending longitudinally therethrough, a first expandable stent at a first one of the distal and the proximal ends of the tubular graft and extending beyond the first one of the distal and the proximal ends of the tubular graft, the first expandable stent having a first plurality of barbs attached thereto and extending longitudinally therealong and pointing in a first direction toward the other end of the at least one of the distal and the proximal ends of the tubular graft, wherein the barbs extend beyong the first one of the distal and the proximal ends of the tubular graft, and a second expandable stent disposed on an interior surface and within the passage of the tubular graft, and having a second plurality of barbs attached thereto and extending longitudinally therealong and pointing in a direction toward the first one of the distal and proximal ends of the tubular graft, and wherein the tubular graft includes a wall with a cut out or scallop at the end of the wall, and wherein the second plurality of barbs protrude through the tubular graft and are configured to engage graft material at the proximal end of the pre-existing stent graft.
17. The stent graft repair device of claim 16, wherein the tubular graft has a diameter extending across the passage and ranging in size from 15 to 35 millimeters.
Description
BRIEF DESCRIPTION OF THE DRAWING
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DETAILED DESCRIPTION
(9) The stent graft repair device of this invention can be delivered by a simple commercially available sheath and dilator system (COOK® Incorporated, Bloomington, Ind.) wherein the dilator portion has a recess or indentation to accommodate the compressed device. Delivery can be by percutaneous methods over a guide wire from either above (trans jugular) or from below via the femoral arteries. The low profile, flexible nature of this delivery system, which is made possible in large part by barb 20 as shown in
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(13) The repair device also includes a second or interior expandable stent 15 disposed in the passage and on the interior surface of the tubular graft wall of the repair device. This second interior expandable stent pushes the tubular graft against short aortic neck 35 and further provides for the exclusion of blood flow around the repair device as well as the migrated stent graft. Accordingly, blood flows only out the distal end of the branch portions or legs of the stent graft and into the contralateral and ipsilateral iliac arteries 38 and 39, respectively. Blood is once again advantageously excluded from aneurysm sack 32, thereby removing the pressure in the aneurysm sack and allowing it to not expand. Consequently, the excluded aneurysm sack can shrink around exterior surface 44 of the stent graft.
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(15) Stent graft repair device 10 also includes a bare or uncovered expandable stent 16 attached to the other end of the tubular graft, preferably proximal end 12, and extends longitudinally from passage 14 of the tubular graft. This bare, expandable stent is also of the Gianturco Z stent type and is attached to the proximal end of the tubular graft, using,for example, well-known and commercially available suture material. A plurality of barbs 17 are affixed to the struts of this bare, expandable stent and point in first direction 18 toward the distal end of the tubular graft. The ends or points of barb 17 point toward the distal end of the graft so as to fully engage and pierce the aortic wall when positioned there against. The flow of blood typically flows in first direction 18 and causes barbs 17 to fully engage and insert themselves into the vessel wall. Barbs 20 of the second expandable stent 15 point in a second or proximal direction 21 opposite to that of first direction 18. As previously described, these barbs engage the interior surface of the migrating stent graft to fixedly attach the repair device to the migrating stent graft.
(16) Depending on the desired length of the tubular graft, which can range from 20 to 60 mm, an additional or second interior expandable stent 34 is disposed on interior surface 29 and in passage 14 of the tubular graft about proximal end 12 thereof. This second interior expandable stent is used in longer length repair devices to expand the tubular graft 11 against hopefully healthy tissue of the aortic wall, typically just below the origins of the renal arteries. However, should healthy tissue not be available to provide a good seal against the vessel wall, the repair device can be moved to a more proximal position above the renal arteries. In such case, tubular graft 11 would preferably include one, preferably two openings or fenestrations 26, in the tubular graft. These openings or fenestrations are positioned directly in front of the origin of the renal arteries so as to permit blood flow into the renal arteries. Preferably two openings or fenestrations would be provided in the tubular graft so as to accommodate both openings of the renal arteries. Should the repair device not be required to fully cover the renal orifices, a cutout or scallop 27 can be formed at, for example, the proximal end 12 of the tubular graft. These cutouts or scallops are positioned about the circumference of the tubular graft to line up with the origins of the renal arteries and allow blood flow to continue into the renal arteries. These cutouts or scallops are depicted in
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(18) Returning to
(19) By way of incorporation by reference herein, the following patents are included for a more detailed description of any and all forms of an ECM or SIS material. These references include U.S. Pat. No. 4,902,508, Tissue Graft Composition; U.S. Pat. No. 4,956,178, Tissue Graft Composition; U.S. Pat. No. 5,275,826, Fluidized Intestinal Submucosa and its Use as an Injectable Tissue Graft; U.S. Pat. No. 5,281,422, Graft For Promoting Autogenous Tissue Growth; U.S. Pat. No. 5,352,463, Tissue Graft for Surgical Reconstruction of a Collagenous Meniscus And Method Therefor; U.S. Pat. No. 5,372,821, Graft for Promoting Autogenous Tissue Growth; U.S. Pat. No. 5,445,833, Tendon or Ligament Graft for Promoting Autogenous Tissue Growth; U.S. Pat. No. 5,516,533, Fluidized Intestinal Submucosa and its Use as an Injectable Tissue Graft; U.S. Pat. No. 5,573,784, Graft for Promoting Autogenous Tissue Growth; U.S. Pat. No. 5,641,518, Method of Repairing Bone Tissue; U.S. Pat. No. 5,645,860, Tissue Graft and Method for Urinary Urothelium Reconstruction Replacement; U.S. Pat. No. 5,695,998, Submucosa as a Growth Substrate for Islet Cells; U.S. Pat. No. 5,711,969, Large Area Submucosal Tissue Graft Constructs; U.S. Pat. No. 5,753,267, Method for Enhancing Functional Properties of Submucosal Tissue Graft Constructs; U.S. Pat. No. 5,755,791, Perforated Submucosal Tissue Graft Constructs; U.S. Pat. No. 5,762,966, Tissue Graft and Method for Urinary Urothelium Reconstruction Replacement; U.S. Pat. No. 5,866,414, Submucosa Gel as a Growth Substrate for Cells; U.S. Pat. No. 5,885,619, Large Area Submucosal Tissue Graft Constructs and Method for Making the Same; U.S. Pat. No. 5,955,110, Multilayered Submucosal Graft Constructs and Method for Making Same; U.S. Pat. No. 5,968,096, Method of Repairing Perforated Submucosal Tissue Graft Constructs; U.S. Pat. No. 5,997,575, Perforated Submucosal Tissue Graft Constructs; U.S. Pat. No. 6,087,157, Device and Method of Analyzing Tumor Cell Invasion of an Extracellular Matrix; U.S. Pat. No. 6,096,347, Myocardial Graft Constructs; U.S. Pat. No. 6,126,686, Artificial Vascular Valves; U.S. Pat. No. 6,187,039, Tubular Submucosal Graft Constructs; U.S. Pat. No. 6,241,981, Composition and Method for Repairing Neurological Tissue; U.S. Pat. No. 6,264,992, Submucosa as a Growth Substrate for Cells; U.S. Pat. No. 6,331,319, Galactosidase Modified Submucosal Tissue; U.S. Pat. No. 6,375,989, Submucosa Extracts; U.S. Pat. No. 6,206,931, Graft Prosthesis Materials; U.S. Pat. No. 6,358,284, Tubular Grafts from Purified Submucosa; U.S. Pat. No. 5,554,389, Urinary Bladder Submucosa Derived Tissue Graft; U.S. Pat. No. 6,099,567, Stomach Submucosa Derived Tissue Graft. In addition, the indicated US and World Intellectual Property Organization patents or publication numbers and the appropriate issue or publication dates are hereby incorporated by reference in their entirety. These additional US and World Intellectual Property Organization publications are as follows: U.S. Pat. No. 6,666,892, Multi-formed Collagenous Biomaterial Medical Device 2003 Dec. 23; US 20030051735A1, Vessel Closure Member, Delivery Apparatus, and Method of Inserting the Member 2003 Mar. 20; WO 03092546A2, Sling for Supporting Tissue 2003 Nov. 13; WO 03092471A2, Cell-Seeded Extracellular Matrix Grafts 2003 Nov. 13; WO 03088844A1, Apparatus and Method for Producing a Reinforced Surgical Staple Line 2003 Oct. 30; WO 03035125A3, Medical Graft Device with Meshed Structure 2003 May 01; WO 03035125A2, Medical Graft Device with Meshed Structure 2003 May 01; WO 03009764A1, Vessel Closure Member and Delivery Apparatus 2003 Feb. 06; WO 03002168A1, Porous Sponge Matrix Medical Devices and Methods 2003 Jan. 09; WO 03002165A1 Graft Prosthesis Devices Containing Renal Capsule Collagen 2003 Jan. 09; WO 0156500A, Implantable Vascular Device 2001 Aug. 09; WO 0154625A1, Stent Valves and Uses of Same 2001 Aug. 02; WO 0110355A1, Tubular Graft Construct 2001 Feb. 15; WO 0032253A1, Radiopaque Implantable Collagenous Biomaterial Device 2000 Jun. 08; WO 0032250A1, A Multi-formed Collagenous Biomaterial Medical Device 2000 Jun. 08 and WO 0032112A1, Embolization Device 2000 Jun. 08. All of the aforementioned references are incorporated by reference herein and may be referred to for detailed descriptions and support for any of the aforementioned embodiments and descriptions of the stent graft repair device and particularly the tubular graft material. It is also contemplated that the bioremodelable substance can be cross-linked as described in the aforementioned references to control the amount of remodeling of tissue coming in proximity to a bioremodelable substance.
(20) Submucosa or other ECM tissue used in the invention is preferably highly purified, for example, as described in U.S. Pat. No. 6,206,931 to Cook et al. Thus, preferred ECM material will exhibit an endotoxin level of less than about 12 endotoxin units (EU) per gram, more preferably less than about 5 EU per gram, and most preferably less than about 1 EU per gram. As additional preferences, the submucosa or other ECM material may have a bioburden of less than about 1 colony forming units (CFU) per gram, more preferably less than about 0.5 CFU per gram. Fungus levels are desirably similarly low, for example less than about 1 CFU per gram, more preferably less than about 0.5 CFU per gram. Nucleic acid levels are preferably less than about 5 μg/mg, more preferably less than about 2 μg/mg, and virus levels are preferably less than about 50 plaque forming units (PFU) per gram, more preferably less than about 5 PFU per gram. These and additional properties of submucosa or other ECM tissue taught in U.S. Pat. No. 6,206,931 may be characteristic of the submucosa tissue used in the present invention.
(21) Repair device 10 can be delivered to a treatment site using a variety of endovascular techniques. In treating aortic aneurysms, a catheter-based introducer can be used to insert the stent graft repair device into the body through a femoral artery and then into the aorta. The introducer may be similar to those described in WO 03/53761 and in US2002/0198587.
(22) U.S. Pat. No. 5,387,235 entitled “Expandable Transluminal Graft Prosthesis For Repair Of Aneurysm” discloses apparatus and methods of retaining grafts onto deployment devices. These features and other features disclosed in U.S. Pat. No. 5,387,235 could be used with the present invention and the disclosure of U.S. Pat. No. 5,387,235 is herewith incorporated in its entirety into this specification.
(23) U.S. Pat. No. 5,720,776 entitled “Barb and Expandable Transluminal Graft Prosthesis For Repair of Aneurysm” discloses improved barbs with various forms of mechanical attachment to a stent. These features and other features disclosed in U.S. Pat. No. 5,720,776 could be used with the present invention and the disclosure of U.S. Pat. No. 5,720,776 is herewith incorporated in its entirety into this specification.
(24) U.S. Pat. No. 6,206,931 entitled “Graft Prosthesis Materials” discloses graft prosthesis materials and a method for implanting, transplanting, replacing and repairing a part of a patient and particularly the manufacture and use of a purified, collagen based matrix structure removed from a submucosa tissue source. These features and other features disclosed in U.S. Pat. No. 6,206,931 could be used with the present invention and the disclosure of U.S. Pat. No. 6,206,931 is herewith incorporated in its entirety into this specification.
(25) PCT Patent Publication No. WO 98/53761 entitled “A Prosthesis And A Method And Means Of Deploying A Prosthesis” discloses an introducer for a prosthesis which retains the prosthesis so that each end can be moved independently. These features and other features disclosed in PCT Patent Publication No. WO 98/53761 could be used with the present invention and the disclosure of PCT Patent Publication No. WO 98/53761 is herewith incorporated in its entirety into this specification.
(26) PCT Patent Publication No. WO 99/29262 entitled “Endoluminal Aortic Stents” discloses a fenestrated prosthesis for placement where there are intersecting arteries. This feature and other features disclosed in PCT Patent Publication No. WO 99/29262 could be used with the present invention and the disclosure of PCT Patent Publication No. WO 99/29262 is herewith incorporated in its entirety into this specification.
(27) PCT Patent Publication No. WO 03/034948 entitled “Prosthesis For Curved Lumens” discloses prostheses with arrangements for bending the prosthesis for placement into curved lumens. This feature and other features disclosed in PCT Patent Publication No. WO 03/034948 could be used with the present invention and the disclosure of PCT Patent Publication No. WO 03/034948 is herewith incorporated in its entirety into this specification.
(28) U.S. Provisional Patent Application Ser. No. 60/392,682, filed Jun. 28, 2002, and U.S. patent application Ser. No. 10/447,406, filed May 29, 2003 and published Dec. 18, 2003 as U.S. Publication No. US2003-0233140, entitled “TriggerWires” disclose release wire systems for the release of stent grafts retained on introducer devices. This feature and other features disclosed in U.S. Provisional Patent Application Ser. No. 60/392,682 and U.S. patent application Ser. No. 10/447,406, filed May 29, 2003 and published Dec. 18, 2003 as U.S. Publication No. US2003-0233140, could be used with the present invention and the disclosure of U.S. Provisional Patent Application Ser. No. 60/392,682 and U.S. patent application Ser. No. 10/447,406, filed May 29, 2003 and published Dec. 18, 2003 as U.S. Publication No. US2003-0233140 are herewith incorporated in their entirety into this specification.
(29) U.S. Provisional Patent Application Ser. No. 60/392,667, filed Jun. 28, 2002, and U.S. patent application Ser. No. 10/609,846, filed Jun. 30, 2003 and published May 20,2004 as U.S. Publication No. US2004-0098079, entitled “Thoracic Deployment Device” disclose introducer devices adapted for deployment of stent grafts particularly in the thoracic arch. This feature and other features disclosed in U.S. Provisional Patent Application Ser. No. 60/392,667 and U.S. patent application Ser. No. 10/609,846, filed Jun. 30, 2003 and published May 20, 2004 as U.S. Publication No. US2004-0098079, could be used with the present invention and the disclosure of U.S. Provisional Patent Application Ser. No. 60/392,667 and U.S. patent application Ser. No. 10/609,846, filed Jun. 30, 2003 and published May 20, 2004 as U.S. Publication No. US2004-0098079, are herewith incorporated in their entirety into this specification.
(30) U.S. Provisional Patent Application Ser. No. 60/392,599, filed Jun. 28, 2002, and U.S. patent application Ser. No. 10/609,835, filed Jun. 30, 2003 and published Jun. 3,2004 as U.S. Publication No. US2004-0106978, entitled “Thoracic Aortic Aneurysm Stent Graft” disclose stent grafts that are useful in treating aortic aneurysms particularly in the thoracic arch. This feature and other features disclosed in U.S. Provisional Patent Application Ser. No 60/392,599 and U.S. patent application Ser. No. 10/609,835, filed Jun. 30, 2003 and published Jun. 3, 2004 as U.S. Publication No. US2004-0106978 could be used with the present invention, and the disclosure are herewith incorporated in their entirety into this specification.
(31) U.S. Provisional Patent Application Ser. No. 60/391,737, filed Jun. 26, 2002, U.S. patent application Ser. No. 10/602,930, filed Jun. 24, 2003 and published Mar. 18, 2004 as U.S. Publication No. US2004-0054396, and PCT Patent Publication Number WO 2004/002365 entitled “Stent-Graft Fastening” disclose arrangements for fastening stents onto grafts particularly for exposed stents. This feature and other features disclosed in U.S. Provisional Patent Application No. 60/391,737, U.S. patent application Ser. No. 10/602,930, and PCT Patent Publication No. WO 2004/002365 could be used with the present invention and the disclosure of U.S. Provisional Patent Application Ser. No. 60/391,73, U.S. patent application Ser. No. 10/602,930, and PCT Patent Publication No. WO 2004/002365 are herewith incorporated in its entirety into this specification.
(32) U.S. Provisional Patent Application Ser. No. 60/405,367, filed Aug. 23, 2002, U.S. patent application Ser. No. 10/647,642, filed Aug. 25, 2003 and published Apr. 15, 2004 as U.S. Publication No. US2004-0073289, and PCT Patent Publication No. WO 2004/017868 entitled “Asymmetric Stent Graft Attachment” disclose retention arrangements for retaining onto and releasing prostheses from introducer devices. This feature and other features disclosed in U.S. Provisional Patent Application Ser. No. 60/405,367, filed Aug. 23, 2002, U.S. patent application Ser. No. 10/647,642, filed Aug. 25, 2003 and published Apr. 15, 2004 as U.S. Publication No. US2004-0073289, and PCT Patent Publication No. WO 2004/017868 could be used with the present invention and the disclosure of U.S. Provisional Patent Application Ser. No. 60/405,367, filed Aug. 23, 2002, U.S. patent application Ser. No. 10/647,642, filed Aug. 25, 2003 and published Apr. 15, 2004 as U.S. Publication No. US2004-0073289, and PCT Patent Publication No. WO 2004/017868 are herewith incorporated in its entirety into this specification.
(33) U.S. patent application Ser. No. 10/322,862, filed Dec. 18,2002 and published as Publication No. US2003-0120332, and PCT Patent Publication No. WO03/053287 entitled “Stent Graft With Improved Adhesion” disclose arrangements on stent grafts for enhancing the adhesion of such stent grafts into walls of vessels in which they are deployed. This feature and other features disclosed in U.S. patent application Ser. No. 10/322,862, filed Dec. 18, 2002 and published as Publication No. US2003-0120332, and PCT Patent Publication No. WO03/053287 could be used with the present invention and the disclosure of U.S. patent application Ser. No. 10/322,862, filed Dec. 18, 2002 and published as Publication No. US2003-0120332, and PCT Patent Publication No. WO03/053287 are herewith incorporated in its entirety into this specification.
(34) U.S. Provisional Patent Application Ser. No. 60/405,769, filed Aug. 23, 2002, U.S. patent application Ser. No. 10/645,095, filed Aug. 23, 2003 and published Apr. 28, 2004 as U.S. Publication No. US2004-0082990, and PCT Patent Publication Number WO 2004/017867 entitled “Composite Prostheses” discloses prostheses or stent grafts suitable for endoluminal deployment. These prostheses and other features disclosed in U.S. Provisional Patent Application Ser. No. 60/405,769, filed Aug. 23, 2002, U.S. patent application Ser. No. 10/645,095, filed Aug. 23, 2003 and published Apr. 28, 2004 as U.S. Publication No. US2004-0082990, and PCT Patent Publication No. WO 2004/017867, could be used with the present invention and the disclosure of U.S. Provisional Patent Application Ser. No. 60/405,769, filed Aug. 23, 2002, U.S. patent application Ser. No. 10/645,095, filed Aug. 23, 2003 and published Apr. 28, 2004 as U.S. Publication No. US2004-0082990, and PCT Patent Publication Number WO 2004/017867 are herewith incorporated in its entirety into this specification.
(35) To help identify elements of the embodiments of the present invention, the following list of element numbers and descriptors are provided. This list does not limit the invention in any manner and is only provided as a convenience for the reader.
LIST OF ELEMENTS
(36) 10 Repair device
(37) 11 Tubular graft of 10
(38) 12 Proximal end of 10
(39) 13 Distal end of 10
(40) 14 Passageway of 10
(41) 15 Interior expandable stent of 10
(42) 16 Bare, expandable stent of 10
(43) 17 Plurality of barbs on 16
(44) 18 Distal direction of 17
(45) 19 Diameter of 11
(46) 20 Barbs (plurality)
(47) 21 Direction (proximal) of 20
(48) 22 Biological glue
(49) 23 Sealing material
(50) 24 Edge of 15
(51) 25 Wall of 10
(52) 26 Fenestrations in 11
(53) 27 Cutout or scallop
(54) 28 End of 25
(55) 29 Interior surface of 25
(56) 30 Stent graft
(57) 31 Abdominal aorta
(58) 32 Aneurysm of 31
(59) 33 Renal arteries
(60) 34 Second expandable stent
(61) 35 Short neck of 31
(62) 36 Proximal end of 30
(63) 37 Distal ends of 30
(64) 38 Contralateral iliac arteries
(65) 39 ipsilateral iliac arteries
(66) 40 Blood flow arrows
(67) 41 Contralateral iliac branch of 30
(68) 42 Ipsilateral iliac branch of 30
(69) 43 Main body portion of 30
(70) 44 Exterior surface of 30