DEVICES AND METHODS FOR TREATMENT OF ABDOMINAL AORTIC ANEURYSMS
First Claim
Patent Images
1. An endograft system for treatment of an abdominal aortic aneurysm (AAA), comprising a cuff and at least two endograft units, each endograft unit having a lumen, a proximal end and a distal end, wherein said endograft units are made of flexible water-tight tubes having the proximal ends placed and secured at the cuff and the distal ends to be placed and fixed in each of iliac arteries.
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Abstract
Methods and devices with two individual tubes for treating abdominal aortic aneurysm that bypass the aneurysm and are placed from the upper aorta to the iliac arteries. A separate upper cuff may also be provided, to secure the tubes above the aneurysm.
226 Citations
79 Claims
- 1. An endograft system for treatment of an abdominal aortic aneurysm (AAA), comprising a cuff and at least two endograft units, each endograft unit having a lumen, a proximal end and a distal end, wherein said endograft units are made of flexible water-tight tubes having the proximal ends placed and secured at the cuff and the distal ends to be placed and fixed in each of iliac arteries.
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19. A method for treatment of circumscribed dilatation of a large blood vessel, comprising positioning a modular multi-luminal endograft system for reducing a diameter of said large blood vessel by generating multiple lumina for down-stream flow continuity.
- 20. An endograft for treatment of an abdominal aortic aneurysm (AAA) comprising a neck attachment section, a graft body, and a leg section, the neck attachment section having a multiple-anchoring mechanism that comprises at least a first anchoring element for placement at proximal to a renal artery and a second anchoring element axially spaced apart from the first anchoring element, wherein the second anchoring element is configured for placement at distal to said renal artery.
- 22. An endograft for treatment of AAA comprising a neck attachment section, a first foam tube having a proximal end and a length to extend from the neck attachment section to a first iliac artery for fixation inside the first iliac artery, and a second form tube having a proximal end and a length to extend from the neck attachment section to a second iliac artery for fixation inside the second iliac artery, wherein both foam tubes are secured to the neck attachment section.
- 37. A flexible stent graft for inserting into a blood vessel, comprising a distal section, a proximal section and a graft body with a lumen that connects the distal and proximal sections, said graft having a first layer of flexible rigid or semi-rigid material, and a second layer of water-tight flexible overlap, wherein the graft is collapsible and is characterized with a low profile during the inserting operation.
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54. A method of repairing an abdominal aortic aneurysm (AAA), the method comprising steps of:
- (a) percutaneously introducing and advancing a guidewire into a first femoral artery, into a first iliac artery and then into a lumen of an aorta beyond area of the aneurysm;
(b) assembling a neck attachment element in a collapsed state to be placed at about a distal end segment of a first deployment catheter, wherein the first deployment catheter having a guidewire lumen formed therein adapted to be fitted over the guidewire;
(c) delivering the neck attachment element to a site of the aorta close to a renal artery ostium to provide an attachment seat of predetermined size approximating a diameter of the aorta lumen beyond and proximal to the area of the aneurysm;
(d) deploying by means of self-expanding or balloon-expanding the neck attachment element to anchor securely the neck attachment element in place;
(e) withdrawing the first deployment catheter;
(f) assembling a first elongated tubular graft prosthesis in a collapsed state to be placed at about a distal end segment of a second deployment catheter, said first graft prosthesis having a proximal end, a distal end, and a continuous side wall extending between the proximal end to the distal end;
(g) delivering the first graft prosthesis with the proximal end being positioned at about the neck attachment element and the distal end being positioned at about the first iliac artery;
(h) deploying by means of anchoring the proximal end of the first graft prosthesis onto the neck attachment element while deploying the distal end in the first iliac artery;
(i) percutaneously withdrawing the second deployment catheter. - View Dependent Claims (55, 56, 57, 58, 59, 60)
- (a) percutaneously introducing and advancing a guidewire into a first femoral artery, into a first iliac artery and then into a lumen of an aorta beyond area of the aneurysm;
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61. A radially expandable sheath as a guiding sheath, comprising a continuous integral sheath body with a thin wall that is radially expandable under outward forces, wherein the radially expandable sheath is characterized with substantially little or no axial stretchability or contraction from a first configuration of a compressed state to a second configuration of an expanded state.
- 63. An endograft for treatment of an abdominal aortic aneurysm (AAA) comprising an impermeable section for excluding blood communication between a lumen of the endograft and a surrounding aneurysmal sac, and a porous section configured for placement across a renal artery ostium.
- 65. A method for plugging an aneurysm in a patient, comprising introducing a PVA sponge substrate with a porosity at a first configuration of a dried compressed state into said aneurysm and allowing said sponge substrate to expand in situ to a second configuration to fill the aneurysm.
- 73. A method of treatment of an abdominal aortic aneurysm (AAA), comprising inserting soft, thrombogenic pipe-cleaner like soft filler material into a AAA sac with a delivery catheter.
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75. A balloon endograft comprising:
- a neck attachment member, a body and at least one distal end, wherein the endograft comprises double layers and a space between the layers, the space being configured to be filled with inflatable fluid or hardenable foam to inflate the balloon endograft.
- View Dependent Claims (76, 77, 78, 79)
Specification