# US 2024/0197465 A1 · Systems, devices, and methods for coupling a prosthetic implant to a fenestrated body > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0197465 A1 - Document ID: US20240197465A1 - Status: Published application - Kind: A1 - Application number: 18/421,667 - Filed: 2024-01-24 - Published: 2024-06-20 - Earliest claimed: 2016-08-02 - Assignees: Bolton Medical, Inc. - Applicants: Bolton Medical, Inc. - Inventors: Casey Torrance; Shannon Eubanks; Edward Wulfman; Thomas C. Douthitt - Web page: https://patentgrep.com/patent/US20240197465A1 ## CPC - A61F 2/07: Stent-grafts - A61F 2/954: for placing stents or stent-grafts in a bifurcation - A61F 2/958: Inflatable balloons for placing stents or stent-grafts - A61F 2002/061: {provided with means for allowing access to secondary lumens} - A61F 2220/0008: Fixation appliances for connecting prostheses to the body - A61F 2220/0075: sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable - A61F 2220/0091: connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type - A61F 2230/001: Figure-8-shaped, e.g. hourglass-shaped - A61F 2230/0095: Saddle-shaped - A61F 2240/002: Designing or making customized prostheses - A61F 2250/0007: for adjusting length - A61F 2250/0029: differing in bending or flexure capacity - A61F 2250/0039: differing in diameter - A61F 2250/0098: radio-opaque, e.g. radio-opaque markers - 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 Devices, systems, and methods for coupling a prosthetic implant to a fenestrated body are disclosed herein. In some embodiments, a branch stent graft is provided. The branch stent graft can include an engagement portion for engagement with an opening in a fenestrated body, such as a vessel wall or an aortic stent graft. The engagement portion of the branch stent graft can be coupled to the fenestrated body such that the branch stent graft can move, rotate or shift relative to the fenestrated body but such that axial movement of the branch stent graft is restricted and/or prevented. ## Claims ### Claim at position 1 1-16. (canceled) ### Claim 17 A radially expandable branch stent graft assembly, comprising: an engagement portion for engaging with an opening in fenestrated body having a first engagement feature (1431A) on a first side of the engagement portion and a second engagement feature (1431B) on a second side of the engagement portion, the first engagement features (1431A) configured to be disposed on an inside of the fenestrated body (1160), the second engagement features (1431B) configured to be disposed on an outside of the fenestrated body (1160), the engagement portion configured to allow the branch stent graft to pivot about the opening of the fenestrated body and to limit axial movement of the branch stent graft relative to the fenestrated body; and a flexible tail portion extending from the engagement portion. ### Claim 18 (depends on 17) The branch stent graft assembly of claim 17, wherein the first engagement feature engages an inside of the fenestrated body. ### Claim 19 (depends on 17) The branch stent graft assembly of claim 17, wherein the second engagement feature engages an outside of the fenestrated body. ### Claim 20 (depends on 17) The branch stent graft assembly of claim 17, wherein at least one of the first and second engagement features is an expandable ring. ### Claim 21 (depends on 17) The branch stent graft assembly of claim 17, wherein a diameter of the first and second engagement features is larger than a diameter of the fenestration. ### Claim 22 (depends on 17) The branch stent graft assembly of claim 17, wherein the first and second engagement features are configured as an X-shaped saddle. ### Claim 23 (depends on 17) The branch stent graft assembly of claim 17, wherein the engagement portion is rigid. ### Claim 24 (depends on 17) The branch stent graft assembly of claim 17, wherein the engagement portion is flexible. ### Claim 25 (depends on 24) The branch stent graft assembly of claim 24, wherein the engagement portion defines a longitudinal central axis, the engagement portion configured to maintain the longitudinal central axis substantially perpendicular to a plane defined by the opening in the fenestrated body. ### Claim 26 (depends on 17) The branch stent graft assembly of claim 17, wherein at least a portion of the flexible tail has a cover. ### Claim 27 A radially expandable branch stent graft assembly, comprising: an engagement portion (1568) defining an opening in fenestrated body, a first anchor member (1550) extending through the opening and configured to engage an internal wall of the fenestrated body (1560), a second anchor member configured to be disposed on an outside of the fenestrated body (1160), the anchor members configured to allow the branch stent graft to pivot about the opening of the fenestrated body and to limit axial movement of the branch stent graft relative to the fenestrated body; and a flexible tail portion extending from the anchor members. ### Claim 28 (depends on 27) The branch stent graft assembly of claim 27, wherein at least one of the first and second anchor members includes a collapsed delivery configuration and an expanded anchoring configuration. ### Claim 29 (depends on 27) The branch stent graft assembly of claim 27, wherein at least one of the first and second anchor members includes a flared end portion. ### Claim 30 (depends on 27) The branch stent graft assembly of claim 27, wherein at least one of the first and second anchor members abuts the area of the fenestrated body surrounding the fenestration. ### Claim 31 (depends on 27) The branch stent graft assembly of claim 27, wherein the branch stent graft assembly is configured to maintain a longitudinal central axis substantially perpendicular to a plane defined by the opening in the fenestrated body.