# US 10,368,991 B2 · Device and associated percutaneous minimally invasive method for creating a venous valve > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,368,991 B2 - Document ID: US10368991B2 - Status: Granted - Kind: B2 - Application number: 15/425,353 - Filed: 2017-02-06 - Published: 2018-08-09 - Granted: 2019-08-06 - Earliest claimed: 2017-02-06 - Assignees: C. R. Bard, Inc. - Applicants: C.R. Bard, Inc - Inventors: Andrzej J. Chanduszko - Web page: https://patentgrep.com/patent/US10368991B2 ## CPC - A61F 2/2475: {Venous valves} - A61F 2/90: characterised by a net-like or mesh-like structure - A61F 2/915: with bands having a meander structure, adjacent bands being connected to each other - A61F 2/95: Instruments specially adapted for placement or removal of stents or stent-grafts - A61F 2002/91575: {connected peak to trough} - A61F 2002/91583: {by a bridge, whereby at least one of its ends is connected along the length of a strut between two consecutive apices within a band} - A61F 2230/0008: elliptical or oval - A61F 2230/0017: Angular shapes - A61F 2230/0054: V-shaped - A61F 2230/0056: W-shaped, e.g. M-shaped, sigma-shaped - A61F 2230/0069: cylindrical - A61F 2230/0091: helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section - 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 A device includes a stent scaffold structure supporting a patch on an interior surface thereof. The device may be used to produce a neovalve in a percutaneous minimally invasive manner. Exemplary methods include implanting the device, permitting a growth layer to form over at least a portion of the patch, and separating the patch from the stent scaffold thereby forming a slit or gap in the vessel wall to act as a valve similar to the surgical neovalve. ## Claims ### Claim 1 An intraluminal device having an implanted configuration and a modified configuration following the implanted configuration, the intraluminal device comprising: a support scaffold designed for implanting into a blood vessel, the support scaffold including a lumen defined by a luminal surface; and a patch coupled to the support scaffold along a length of the luminal surface in the implanted configuration, the patch covering less than a full circumference along the length, wherein removal of the patch from the lumen of the support scaffold transitions the intraluminal device from the implanted configuration to the modified configuration. ### Claim 2 (depends on 1) The intraluminal device of claim 1, wherein the patch includes a leading terminal edge positioned at a terminal end of the support scaffold, the leading terminal edge including a portion extending into the lumen of the support scaffold. ### Claim 3 (depends on 1) The intraluminal device of claim 1, wherein the patch defines a leading terminal edge and a trailing terminal edge, and wherein the leading terminal edge is configured to inhibit cellular proliferation in the implanted configuration. ### Claim 4 (depends on 3) The intraluminal device of claim 3, wherein the leading terminal edge comprises a coating including a drug to inhibit cellular proliferation. ### Claim 5 (depends on 4) The intraluminal device of claim 4, wherein the patch comprises a metal component welded to the support scaffold, and wherein the support scaffold has a thickness greater than a thickness of the metal component. ### Claim 6 (depends on 1) The intraluminal device of claim 1, wherein the support scaffold is a stent. ### Claim 7 (depends on 6) The intraluminal device of claim 6, further comprising a retrieval device permanently attached to the patch. ### Claim 8 (depends on 7) The intraluminal device of claim 7, wherein the retrieval device comprises a hook designed to be captured by a snare and pulled in order to remove the patch from the stent thereby transitioning the intraluminal device from the implanted configuration to the modified configuration. ### Claim 9 (depends on 7) The intraluminal device of claim 7, wherein the retrieval device comprises an extension positioned outside of the blood vessel in the implanted configuration, wherein the extension is designed to be manipulated in order to remove the patch from the stent thereby transitioning the intraluminal device from the implanted configuration to the modified configuration. ### Claim 10 (depends on 3) The intraluminal device of claim 3, wherein the patch tapers from the leading terminal edge to the trailing terminal edge such that an arc length defined by the patch at the leading terminal edge is longer than an arc length defined by the patch at the trailing terminal edge. ### Claim 11 (depends on 1) The intraluminal device of claim 1, wherein the support scaffold is a stent including a polyurethane coating, wherein the patch comprises ePTFE (expanded polytetrafluoroethylene), and wherein the ePTFE is bonded to the polyurethane coating. ### Claim 12 An intraluminal device having an implanted configuration and a modified configuration following the implanted configuration, the intraluminal device comprising: a stent including a lumen defined by a luminal surface, the stent comprising a metal material selected from the group consisting of Nitinol, steel, titanium, Cobalt-Nickel alloy, and a metal alloy; and a patch comprising the metal material, the patch covering a portion of the luminal surface of the stent in the implanted configuration, wherein removing the patch from the lumen of the stent transitions the intraluminal device from the implanted configuration to the modified configuration.