# US 2014/0155929 A1 · Embolic protection device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0155929 A1 - Document ID: US20140155929A1 - Status: Published application - Kind: A1 - Application number: 14/175,042 - Filed: 2014-02-07 - Published: 2014-06-05 - Earliest claimed: 2002-08-27 - Assignees: Emboline, Inc. - Applicants: Emboline, Inc. - Inventors: Amir Belson - Web page: https://patentgrep.com/patent/US20140155929A1 ## CPC - A61F 2/013: {Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting} - A61F 2/01: Filters implantable into blood vessels - A61B 17/00234: {for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)} - A61B 18/1492: {having a flexible, catheter-like structure, e.g. for heart ablation (A61B18/1477 takes precedence)} - A61B 2017/00243: {cardiac} - A61F 2/011: {Instruments for their placement or removal} - A61F 2002/016: {made from wire-like elements} - A61F 2002/018: {made from tubes or sheets of material, e.g. by etching or laser-cutting} - A61F 2210/0076: multilayered, e.g. laminated structures - A61F 2230/0006: circular - A61F 2230/0065: toroidal, e.g. ring-shaped, doughnut-shaped - A61F 2230/0069: cylindrical - A61F 2250/0067: Means for introducing or releasing pharmaceutical products into the body - 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 embolic protection device (10) has an expandable tubular structure supporting a filter mesh material (12). The embolic protection device is compressed to a small diameter for insertion into a patient's aorta, then expanded within the aorta with the filter mesh material positioned to allow blood to enter sidebranch vessels connected to the aorta and to prevent embolic material from entering the sidebranch vessels. The filter mesh material may be configured with waves or undulations (26) for increased surface area and/or with two layers of mesh material to provide additional protection against embolization and to prevent inadvertent occlusion of the sidebranch vessels. ## Claims ### Claim 1 An embolic protection device for deployment within a patient's aorta comprising: an expandable structure comprising a filter mesh material, the structure having a compressed configuration wherein the structure is compressed to a small width for insertion into the patient's aorta and an expanded configuration, wherein the filter mesh expands to conform to or be held over the aortic vessels of the patient's aorta, wherein the filter mesh material is configured with an inner layer of filter mesh and an outer layer of filter mesh. ### Claim 2 (depends on 1) The embolic protection device of claim 1, wherein the inner layer of filter mesh comprises a coarse mesh material and the outer layer of filter mesh comprises a fine mesh material. ### Claim 3 (depends on 2) The embolic protection device of claim 2, wherein at least one of the layers is self-expanding. ### Claim 4 (depends on 3) The embolic protection device of claim 3, wherein the outer layer comprises a fine mesh textile fabric and the inner layer comprises a self-expanding wire mesh structure. ### Claim 5 (depends on 1) The embolic protection device of claim 1, wherein the inner layer and the outer layer are arranged so that blood can flow between the inner layer and the outer layer whereby the arch vessels will continue to receive blood flow even if the inner layer in front of one or more of the arch vessels becomes clogged. ### Claim 6 (depends on 1) The embolic protection device of claim 1, wherein the expandable structure is woven of resilient wires and/or fibers to form the filter mesh. ### Claim 7 (depends on 1) The embolic protection device of claim 1, wherein the filter mesh material is in a tubular configuration. ### Claim 8 (depends on 1) The embolic protection device of claim 1, wherein the filter mesh material comprises a panel supported by a self-expanding a wire frame surrounding a periphery of the panel. ### Claim 9 (depends on 8) The embolic protection device of claim 8, wherein the panel is flat. ### Claim 10 (depends on 1) The embolic protection device of claim 1, wherein the filter mesh material is configured with waves or undulations. ### Claim 11 (depends on 1) The embolic protection device of claim 1, wherein at least a portion of the device is coated with an anti-thrombogenic coating. ### Claim 12 (depends on 11) The embolic protection device of claim 11, wherein the anti-thrombogenic coating comprises heparin. ### Claim 13 (depends on 12) The embolic protection device of claim 12, wherein the inner layer of filter mesh comprises a coarse mesh material and the outer layer of filter mesh comprises a fine mesh material. ### Claim 14 (depends on 1) The embolic protection device of claim 1, further comprising a delivery tube sized and configured to hold the expandable structure in its compressed position. ### Claim 15 (depends on 7) The embolic protection device of claim 7, further comprising a drawstring encircling the tubular structure for selectively compressing the tubular structure to a small diameter for withdrawal from the patient. ### Claim 16 (depends on 7) The embolic protection device of claim 7, further comprising a plurality of magnets attached to the tubular structure and a magnetic retrieval catheter for collapsing the tubular structure and withdrawing the embolic protection device from the patient. ### Claim 17 (depends on 7) The embolic protection device of claim 7, further comprising an inflatable toroidal balloon for supporting the expandable tubular structure. ### Claim 18 (depends on 8) The embolic protection device of claim 8, further comprising one or more wire hoops for supporting the panel of the expandable structure. ### Claim 19 A method of providing embolic protection for sidebranch vessels connected to a patient's aorta comprising: introducing an embolic protection device into the patient's aorta, the embolic protection device comprising an expandable structure supporting a filter mesh material, the structure having a compressed configuration wherein the structure is compressed to a small width for insertion into the patient's aorta and an expanded configuration, wherein the filter mesh expands to conform to or be held over the aortic vessels of the patient's aorta such that the filter mesh material allows blood to enter the aortic vessels connected to the patient's aorta but prevents embolic material from entering the aortic vessels, wherein the filter mesh material is configured with an inner layer of filter mesh and an outer layer of filter mesh. ### Claim 20 (depends on 19) The method of claim 19, wherein the inner layer of filter mesh comprises a coarse mesh material and the outer layer of filter mesh comprises a fine mesh material. ### Claim 21 (depends on 20) The method of claim 20, wherein at least one of the layers is self-expanding. ### Claim 22 (depends on 21) The embolic protection device of claim 21, wherein the outer layer comprises a fine mesh textile fabric and the inner layer comprises a self-expanding wire mesh structure. ### Claim 23 (depends on 19) The embolic protection device of claim 19, wherein the inner layer and the outer layer are arranged so that blood can flow between the inner layer and the outer layer whereby the arch vessels will continue to receive blood flow even if the inner layer in front of one or more of the arch vessels becomes clogged. ### Claim 24 (depends on 19) The method of claim 19, wherein the expandable structure is woven of resilient wires and/or fibers to form the filter mesh. ### Claim 25 (depends on 19) The method of claim 19, wherein the filter mesh material is in a tubular configuration. ### Claim 26 (depends on 19) The embolic protection device of claim 19, wherein the filter mesh material comprises a panel supported by a self-expanding a wire frame surrounding a periphery of the panel. ### Claim 27 (depends on 26) The method of claim 26, wherein the panel is flat. ### Claim 28 (depends on 19) The method of claim 19, wherein the filter mesh material is configured with waves or undulations. ### Claim 29 (depends on 19) The method of claim 19, wherein at least a portion of the device is coated with an anti-thrombogenic coating. ### Claim 30 (depends on 29) The method of claim 29, wherein the anti-thrombogenic coating comprises heparin. ### Claim 31 (depends on 95) The method of claim 95, wherein introducing comprises releasing the compressed embolic protection device from a delivery tube which holds the embolic protection device in its compressed position. ### Claim 32 (depends on 25) The method of claim 25, further comprising drawing a drawstring encircling the tubular structure for selectively compressing the tubular structure to a small diameter for withdrawal from the patient. ### Claim 33 (depends on 25) The method of claim 25, further comprising collapsing the expanded structure using a plurality of magnets attached to the tubular structure and a magnetic retrieval catheter for collapsing the tubular structure and withdrawing the embolic protection device from the patient. ### Claim 34 (depends on 25) The method of claim 25, further comprising inflating an inflatable toroidal balloon for supporting the expandable tubular structure. ### Claim 35 (depends on 26) The embolic protection device of claim 26, further comprising deploying one or more wire hoops for supporting the panel of the expandable structure.