# US 8,784,467 B2 · Non-occlusive dilation devices > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,784,467 B2 - Document ID: US8784467B2 - Status: Granted - Kind: B2 - Application number: 12/780,350 - Filed: 2010-05-14 - Published: 2011-04-07 - Granted: 2014-07-22 - Earliest claimed: 2009-05-15 - Assignees: LeMaitre Vascular, Inc. - Applicants: Ryan Connelly; Jennifer Egan; Venkatesh Ramaiah; Robert McNutt - Inventors: Ryan Connelly; Jennifer Egan; Venkatesh Ramaiah; Robert McNutt - Web page: https://patentgrep.com/patent/US8784467B2 ## CPC - A61M 29/02: Dilators made of swellable material {(balloon catheters for angioplasty A61M25/104)} - A61F 2/95: Instruments specially adapted for placement or removal of stents or stent-grafts - A61F 2/966: with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} - 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) ## Abstract Non-occlusive modeling catheters including a dilation device for expanding an endoprosthesis implanted in a vessel are disclosed. In an embodiment, a modeling catheter includes a device comprising a plurality of compliant wires braided in a double overlapping pattern and having a length spanning between a proximal end of the device and a distal end of the device, wherein the device is positioned in at least a portion of an endoprosthesis implanted in a vessel, wherein, when the device is in a relaxed state, a plurality of spaces are formed between the plurality of wires to allow fluid to move freely through the plurality of spaces, and wherein, when the device is in a dilated state, the plurality of wires are sufficiently designed to exert a radial force on the endoprosthesis while continually allowing the fluid to move freely through the plurality of spaces. ## Claims ### Claim 1 A device comprising: 48 round nitinol wires braided in a double overlapping pattern, wherein each of the wires has a diameter of about 0.28 mm and a length between about 10 cm and about 15 cm spanning between a proximal end of the device and a distal end of the device, wherein a braid density of the wires is about 7 ppi, wherein the device is sufficiently designed to be positioned in at least a portion of an endoprosthesis implanted in a single vessel, wherein, when the device is in a relaxed state and positioned in the endoprosthesis, a plurality of spaces are formed between the plurality of wires to allow fluid to move freely through the plurality of spaces, wherein, when the device is in a dilated state and positioned in the endoprosthesis, the plurality of wires are sufficiently designed to exert a radial force on the endoprosthesis while continually allowing the fluid to move freely through the plurality of spaces, and wherein, when the device is in the dilated state and positioned in the endoprosthesis, the plurality of wires are sufficiently designed to conform to a diameter disparity ratio in the single vessel ranging from about 1:1 to about 10:1. ### Claim 2 (depends on 1) The device of claim 1 wherein, when the device is positioned in the endoprosthesis, the device is sufficiently designed to enhance primary attachment of the endoprosthesis to the single vessel. ### Claim 3 (depends on 1) The device of claim 1 wherein, when the device is positioned in the endoprosthesis, the device is sufficiently designed to repair a collapse in the endoprosthesis. ### Claim 4 (depends on 1) The device of claim 1 wherein, when the device is positioned in the endoprosthesis, the device is sufficiently designed to repair infolding of the endoprosthesis. ### Claim 5 (depends on 1) The device of claim 1 wherein, when the device is positioned in the endoprosthesis, the device is sufficiently designed to repair an endoleak in the endoprosthesis. ### Claim 6 (depends on 1) The device of claim 1 wherein the plurality of spaces formed between the plurality of wires range from about 0.5 mm2 to about 5 mm2. ### Claim 7 (depends on 1) The device of claim 1 wherein, when the device is in the dilated state and positioned in the endoprosthesis, the radial force exerted on the endoprosthesis by the plurality of wires ranges from about 0 psi to about 20 psi. ### Claim 8 (depends on 1) The device of claim 1 wherein, when the device is in the relaxed state and positioned in the endoprosthesis, at least a portion of the device has a diameter ranging from about 5 mm to about 30 mm. ### Claim 9 (depends on 1) The device of claim 1 wherein, when the device is in the dilated state and positioned in the endoprosthesis, at least a portion of the device has a diameter ranging from about 10 mm to about 70 mm. ### Claim 10 (depends on 1) The device of claim 1 wherein, when the device is positioned in the endoprosthesis, the single vessel having the implanted endoprosthesis is substantially straight. ### Claim 11 (depends on 1) The device of claim 1 wherein, when the device is positioned in the endoprosthesis, the single vessel having the implanted endoprosthesis has a bend. ### Claim 12 (depends on 11) The device of claim 11 wherein, when the device is in the relaxed state and positioned in the endoprosthesis, the plurality of wires are sufficiently designed to conform to a curvature in the single vessel so that a bend radius of the device ranges from about 10 mm to about 130 mm. ### Claim 13 (depends on 11) The device of claim 11 wherein, when the device is in the dilated state and positioned in the endoprosthesis, the radial force exerted on the endoprosthesis by the plurality of wires at an inner curvature of the bend and an outer curvature of the bend is approximately equal and ranges from about 0 psi to about 20 psi. ### Claim 14 A device comprising: 48 round nitinol wires braided in a double overlapping pattern, wherein each of the wires has a diameter of about 0.28 mm and a length between about 10 cm and about 15 cm spanning between a proximal end of the device and a distal end of the device, wherein a braid density of the wires is about 7 ppi, wherein the device is sufficiently designed to expand from a relaxed state to a dilated state, wherein the device is sufficiently designed to be positioned in at least a portion of an endoprosthesis implanted in a bifurcated vessel, wherein, when the device is in the relaxed state and positioned in the endoprosthesis, the overlapping pattern creates a plurality of spaces between the plurality of wires allowing fluid to move freely through the plurality of spaces, wherein, when the device is in the dilated state and positioned in the endoprosthesis, the plurality of wires are sufficiently designed to exert a radial force on the endoprosthesis while continually allowing the fluid to move freely through the plurality of spaces, and wherein, when the device is in the dilated state and positioned in the endoprosthesis, the plurality of wires are sufficiently designed to conform to a multi-vessel diameter disparity ratio in the bifurcated vessel ranging from about 1:1 to 20:1. ### Claim 15 (depends on 14) The device of claim 14 wherein, when the device is positioned in the endoprosthesis, the device is sufficiently designed to enhance primary attachment of the endoprosthesis to the single vessel. ### Claim 16 (depends on 14) The device of claim 14 wherein, when the device is positioned in the endoprosthesis, the device is sufficiently designed to repair a collapse in the endoprosthesis. ### Claim 17 (depends on 14) The device of claim 14 wherein, when the device is positioned in the endoprosthesis, the device is sufficiently designed to repair infolding of the endoprosthesis. ### Claim 18 (depends on 14) The device of claim 14 wherein, when the device is positioned in the endoprosthesis, the device is sufficiently designed to repair an endoleak in the endoprosthesis. ### Claim 19 (depends on 14) The device of claim 14 wherein the plurality of spaces formed between the plurality of wires range from about 0.5 mm2 to about 5 mm2. ### Claim 20 (depends on 14) The device of claim 14 wherein, when the device is in the dilated state and positioned in the endoprosthesis, the radial force exerted on the endoprosthesis by the plurality of wires ranges from about 0 psi to about 20 psi. ### Claim 21 (depends on 14) The device of claim 14 wherein, when the device is in the relaxed state and positioned in the endoprosthesis, at least a portion of the device has a diameter ranging from about 5 mm to about 30 mm. ### Claim 22 (depends on 14) The device of claim 14 wherein, when the device is in the dilated state and positioned in the endoprosthesis, at least a portion of the device has a diameter ranging from about 10 mm to about 70 mm. ### Claim 23 (depends on 1) The device of claim 1 wherein the plurality of spaces formed between the plurality of wires range from about 1 mm2 to about 400 mm2. ### Claim 24 A device comprising: 48 round nitinol wires braided in a double overlapping pattern, wherein each of the wires has a diameter of about 0.28 mm and a length between about 10 cm and about 15 cm spanning between a proximal end of the device and a distal end of the device, wherein a braid density of the wires is about 7 ppi, wherein the device is sufficiently designed to be positioned in at least a portion of an endoprosthesis implanted in a vessel, wherein, when the device is in a relaxed state and positioned in the endoprosthesis, a plurality of spaces are formed between the plurality of wires to allow fluid to move freely through the plurality of spaces, wherein, when the device is in a dilated state and positioned in the endoprosthesis, the plurality of wires are sufficiently designed to exert a radial force on the endoprosthesis while continually allowing the fluid to move freely through the plurality of spaces, and wherein, when the device is in the dilated state and positioned in the endoprosthesis, the plurality of wires are sufficiently designed to conform to a diameter disparity ratio ranging from about 1:1 to about 10:1. ### Claim 25 (depends on 24) The device of claim 24 wherein, when the device is positioned in the endoprosthesis, the device is sufficiently designed to enhance primary attachment of the endoprosthesis to the single vessel. ### Claim 26 (depends on 24) The device of claim 24 wherein, when the device is positioned in the endoprosthesis, the device is sufficiently designed to repair a collapse in the endoprosthesis. ### Claim 27 (depends on 24) The device of claim 24 wherein, when the device is positioned in the endoprosthesis, the device is sufficiently designed to repair infolding of the endoprosthesis. ### Claim 28 (depends on 24) The device of claim 24 wherein, when the device is positioned in the endoprosthesis, the device is sufficiently designed to repair an endoleak in the endoprosthesis.