# US 2014/0207226 A1 · Devices and methods for treatment of vascular aneurysms > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0207226 A1 - Document ID: US20140207226A1 - Status: Published application - Kind: A1 - Application number: 14/225,730 - Filed: 2014-03-26 - Published: 2014-07-24 - Earliest claimed: 2001-11-26 - Assignees: Thomas J. Fogarty - Inventors: Steven W. KIM; Brian K. SHIU - Web page: https://patentgrep.com/patent/US20140207226A1 ## CPC - A61F 2/07: Stent-grafts - A61B 17/12022: {Occluding by internal devices, e.g. balloons or releasable wires (plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20)} - A61B 17/12036: {partial occlusion} - A61B 17/12118: {for positioning in conjunction with a stent} - A61B 17/12136: {Balloons} - A61B 17/12186: {liquid materials adapted to be injected} - A61B 17/1219: {expandable in contact with liquids} - A61B 17/12195: {comprising a curable material} - A61F 2/90: characterised by a net-like or mesh-like structure - A61F 2/954: for placing stents or stent-grafts in a bifurcation - A61F 2/958: Inflatable balloons for placing stents or stent-grafts - A61B 2017/00898: {expandable upon contact with fluid} - A61B 2017/00986: {Malecots, e.g. slotted tubes, of which the distal end is pulled to deflect side struts} - A61B 2017/1205: {Introduction devices} - A61B 2017/3484: {Anchoring means, e.g. spreading-out umbrella-like structure} - A61F 2002/065: {Y-shaped blood vessels} - A61F 2002/077: {having means to fill the space between stent-graft and aneurysm wall, e.g. a sleeve} - A61F 2002/823: {Stents, different from stent-grafts, adapted to cover an aneurysm} - A61F 2250/0003: having an inflatable pocket filled with fluid, e.g. liquid or gas - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract The present invention relates to devices and methods for the treatment of diseases in the vasculature, and more specifically, devices and methods for treatment of aneurysms found in blood vessels. In a first embodiment of the present invention, a two part prostheses, where one part is an expandable sponge structure and the other part is an expandable tubular mesh structure, is provided. In the first embodiment, the expandable sponge structure is intended to fill the aneurysm cavity to prevent further dilatation of the vessel wall by creating a buffer or barrier between the pressurized pulsating blood flow and the thinning vessel wall. In the first embodiment, the expandable tubular mesh structure is placed across the aneurysm, contacting the inner wall of healthy vessel proximal and distal to the aneurysm. ## Claims ### Claim 1 A method for treating an aneurysm comprising: placing a stent having a first end connected to a second end across the aneurysm; and placing an expandable foam within the confines of the aneurysm away from a blood flow path. ### Claim 2 (depends on 1) The method of claim 1, wherein the stent comprises an expandable tubular mesh, ### Claim 3 (depends on 1) The method of claim 1, wherein the foam comprises a sponge. ### Claim 4 (depends on 1) The method of claim 1, further comprising exposing the expandable foam to a fluid to expand the expandable foam in the aneurysm. ### Claim 5 (depends on 4) The method of claim 4, wherein the fluid comprises blood. ### Claim 6 (depends on 1) The method of claim 1, wherein the stent prevents the expandable foam from protruding out of the aneurysm and into a vessel lumen. ### Claim 7 (depends on 1) The method of claim 1, wherein the expandable foam comprises collagen, wherein the collagen has a compressed configuration when the collagen is in a dry condition, and an expanded configuration when the collagen is in a wet condition, ### Claim 8 (depends on 1) The method of claim 1, wherein the expandable foam comprises a polymer, wherein the polymer has a compressed configuration when the polymer is in a dry condition, and an expanded configuration when the polymer is in a wet condition. ### Claim 9 A method for treating an aneurysm comprising: placing a stent having a first end connected to a second across the aneurysm; placing a catheter delivery system between the first end and the second end, wherein a tip of the catheter delivery system is in the aneurysm; and introducing an expandable foam into the catheter delivery system. ### Claim 10 (depends on 9) The method of claim 9, wherein the stent comprises an expandable tubular mesh, ### Claim 11 (depends on 9) The method of claim 9, further comprising delivering the expandable foam between an outside surface of the stent and the interior tissue of the aneurysm wall. ### Claim 12 (depends on 9) The method of claim 9, further comprising exposing the expandable foam to fluid, and expanding the expandable foam in the aneurysm. ### Claim 13 (depends on 9) The method of claim 9, wherein the stent comprises cells, and wherein the expandable foam after expanding has a size larger than any cell of the stent. ### Claim 14 (depends on 9) The method of claim 9, wherein the expandable foam comprises a polymer. ### Claim 15 (depends on 9) The method of claim 9, wherein the expandable foam comprises collagen. ### Claim 16 (depends on 9) The method of claim 9, wherein the stent comprises a cell, the method further comprising: delivering the expandable foam via the catheter delivery system through the cell of the stent, and passing a tip of the catheter delivery system through the cell of the stent. ### Claim 17 (depends on 16) The method of claim 16, wherein the tip of the catheter delivery system comprises a prevention structure configured to prevent the catheter tip from backing out of the aneurysm sac. ### Claim 18 (depends on 9) The method of claim 9, wherein the catheter delivery system contains the expandable foam before the introducing of the expandable foam to the aneurysm. ### Claim 19 (depends on 16) The method of claim 16, further comprising passing the expandable foam through a communication port coupled to the catheter delivery system. ### Claim 20 (depends on 9) The method of claim 9, wherein the expandable foam comprises a sponge. ### Claim 21 A system for treating aneurysms comprising: a catheter delivery, system; an expandable foam configured to pass through the catheter delivery system, wherein the expandable foam is configured to expand when reacting with a fluid; and a stent, wherein the stent is configured to extend from a first end to a second end of an aneurysm. ### Claim 22 (depends on 21) The method of claim 21, wherein the stent comprises an expandable tubular mesh. ### Claim 23 (depends on 21) The system of claim 21, further comprising a communication port coupled to the catheter delivery system, wherein the expandable foam is configured to pass through the communication port to the catheter delivery system. ### Claim 24 (depends on 21) The system of claim 21, further comprising a guidewire, wherein the catheter delivery system is configured to track over the guidewire to the aneurysm. ### Claim 25 (depends on 21) The system of claim 21, wherein the stent comprises a cell, wherein the catheter delivery system is configured to pass through the cell of the stent. ### Claim 26 (depends on 21) The system of claim 21, therein the stent comprises at least one of PTFE, Polyester, or Polyurethane. ### Claim 27 (depends on 21) The method of claim 21, wherein the expandable foam comprises a sponge.