# US 12,599,481 B2 · Systems, methods and devices for delivery systems, methods and devices for implanting prosthetic heart valves > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,599,481 B2 - Document ID: US12599481B2 - Status: Granted - Kind: B2 - Application number: 18/504,477 - Filed: 2023-11-08 - Published: 2024-08-01 - Granted: 2026-04-14 - Earliest claimed: 2017-01-19 - Assignees: 4C Medical Technologies, Inc. - Applicants: 4C Medical Technologies, Inc. - Inventors: Jeffrey W. Chambers; Gregory G. Brucker; Joseph P. Higgins; Saravana B. Kumar; Jason S. Diedering; Karl A. Kabarowski; Robert J. Thatcher; James E. Flaherty; Jeffrey R. Stone - Web page: https://patentgrep.com/patent/US12599481B2 ## CPC - A61F 2/243: {Deployment by mechanical expansion} - A61F 2/2418: {Scaffolds therefor, e.g. support stents} - A61F 2/2436: {Deployment by retracting a sheath} - A61F 2/2439: {Expansion controlled by filaments} - A61B 17/12122: {within the heart (for closing a cardiac septal defect A61B17/0057)} - A61B 17/12131: {characterised by the type of occluding device} - A61F 2220/0008: Fixation appliances for connecting prostheses to the body - A61F 2250/0039: differing in diameter - 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 Embodiments of delivery systems, devices and methods for delivering a prosthetic heart valve device to a heart chamber for expanded implementation are disclosed. More specifically, methods, systems and devices are disclosed for delivering a self-expanding prosthetic mitral valve device to the left atrium, with no engagement of the left ventricle, the native mitral valve leaflets or the annular tissue downstream of the upper annular surface during delivery, and in some embodiments with no engagement of the ventricle, mitral valve leaflets and/or annular tissue located downstream of the upper annular surface by the delivered, positioned and expanded prosthetic mitral valve device. ## Claims ### Claim 1 A method of delivering a self-expanding prosthetic valve device to a heart chamber for expanded implantation, the method comprising: disposing a lasso structure through a frame of the prosthetic valve device, the lasso structure: being operatively connected to a manipulation wire that extends proximally from the lasso structure; and comprising a closed wire loop; connecting the lasso structure to the prosthetic valve device; and during deployment of the prosthetic valve device in the heart chamber: using the lasso structure to steer the prosthetic valve device out of a catheter; and expanding the lasso structure to a diameter that is larger than an inner diameter of the catheter. ### Claim 2 (depends on 1) The method of claim 1 further comprising, after the disposing, connecting the lasso structure to the prosthetic valve device via a connector element. ### Claim 3 (depends on 2) The method of claim 2 further comprising using the manipulation wire to manipulate the connector element. ### Claim 4 (depends on 2) The method of claim 2 further comprising: disconnecting the lasso structure from the connector element, wherein the connector element remains attached to the frame of the prosthetic valve device; and retracting the lasso structure proximally through the catheter. ### Claim 5 (depends on 2) The method of claim 2 further comprising: disconnecting the connector element from the prosthetic valve device; and retracting the lasso structure and the connector element proximally through the catheter. ### Claim 6 (depends on 2) The method of claim 2 further comprising collapsing the frame of the prosthetic valve device. ### Claim 7 (depends on 6) The method of claim 6 further comprising retracting the prosthetic valve device proximally into the catheter. ### Claim 8 (depends on 7) The method of claim 7 wherein the collapsing the frame is performed after the expanding. ### Claim 9 (depends on 2) The method of claim 2 further comprising pulling the manipulation wire to disconnect the manipulation wire from the connector element. ### Claim 10 (depends on 1) The method of claim 1 further comprising manipulating the manipulation wire to steer the prosthetic valve device out of the catheter. ### Claim 11 (depends on 1) The method of claim 1 wherein the lasso structure is operatively connected to a single manipulation wire. ### Claim 12 (depends on 1) The method of claim 1 wherein: the manipulation wire is a first manipulation wire; and the lasso structure is operatively connected to a second manipulation wire that extends proximally from the lasso structure. ### Claim 13 (depends on 1) The method of claim 1 wherein two proximal wire segments of the closed wire loop pass into a distal end of the catheter and thereby define a closure of the closed wire loop. ### Claim 14 (depends on 1) The method of claim 1 wherein the lasso structure is connected to the prosthetic valve device in a middle of an interior of the prosthetic valve device. ### Claim 15 (depends on 1) The method of claim 1 wherein the wire loop comprises two symmetrically opposed sides, each side comprising a curved wire segment. ### Claim 16 (depends on 1) The method of claim 1 wherein the lasso structure comprises a single closed wire loop.