# US 11,439,496 B2 · Tubular therapeutic implement, tubular therapeutic implement set, and device for indwelling tubular therapeutic implement > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,439,496 B2 - Document ID: US11439496B2 - Status: Granted - Kind: B2 - Application number: 16/647,531 - Filed: 2018-10-19 - Published: 2020-07-09 - Granted: 2022-09-13 - Earliest claimed: 2017-10-20 - Assignees: Sb-Kawasumi Laboratories, Inc. - Applicants: Sb-Kawasumi Laboratories, Inc. - Inventors: Kentaro Hidari - Web page: https://patentgrep.com/patent/US11439496B2 ## CPC - A61F 2/07: Stent-grafts - A61F 2/856: Single tubular stent with a side portal passage - A61F 2/954: for placing stents or stent-grafts in a bifurcation - A61F 2/89: the wire-like elements comprising two or more adjacent rings flexibly connected by separate members - A61F 2002/061: {provided with means for allowing access to secondary lumens} - A61F 2002/067: {modular} - 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 Provided are a tubular therapeutic implement, a tubular therapeutic implement set, and a tubular therapeutic implement indwelling device, all of which enable appropriate indwelling at a branching portion in a tubular tissue. This stent graft 30 is provided with: a frame portion (32) having a plurality of frame pieces (321-325); and a tubular graft portion (33) which is provided along the frame portion, wherein the tube wall of the graft portion is provided with a lateral opening (through-hole 36 of a branching section 35) that is connected with an inner cavity of the graft portion, and when the region between one end and the other end of the graft portion is compartmented into a first region (P) that includes the lateral opening and a second region (Q) that dose not include the lateral opening, the frame pieces are not situated in the first region, but are in the second region. ## Claims ### Claim 1 A tubular therapeutic implement comprising: a frame portion having a plurality of frame pieces; and a graft portion in a tubular shape disposed along the frame portion, wherein a tube wall of the graft portion has a side opening communicating with an inner cavity of the graft portion, the frame portion includes a first frame piece extending circumferentially while bending to form a complete ring shape and a second frame piece extending circumferentially while bending and being partially discontinuous to form a partial ring shape, the first frame piece and the second frame piece are disposed apart in the axial direction of the graft portion, the side opening is disposed in a specific portion of a full-length portion extending from one end to a different end through an entirety of the graft portion, the specific portion is divided into first and second regions in a circumferential direction, the first region not having the second frame piece, the second region having the second frame piece the first region is a region sandwiched between a first straight portion at one end of the second frame piece and a second straight portion at the other end of the second frame piece, and the side opening is disposed in the first region. ### Claim 2 (depends on 1) The tubular therapeutic implement according to claim 1, wherein the specific portion has a circular cross-section, the first region is present within a range of 90° or more to 180° or less out of a full 360° circumference of the circular cross-section of the specific portion, and the second region is present in a range excluding the first region. ### Claim 3 (depends on 2) The tubular therapeutic implement according to claim 2, wherein the position of the side opening deviates from a middle position of the first region in the circumferential direction. ### Claim 4 (depends on 1) The tubular therapeutic implement according to claim 1, wherein a concave portion recessed inward in a radial direction is formed on the tube wall in the graft portion, the side opening is disposed on a cylindrical branching portion protruding outward in the radial direction by a predetermined length from the concave portion, and the concave portion corresponds to the first region. ### Claim 5 (depends on 4) The tubular therapeutic implement according to claim 4, wherein the branching portion has an opening state-maintaining portion to maintain an opening state of the side opening when the graft portion is expanded. ### Claim 6 (depends on 1) A tubular therapeutic implement set comprising: a first tubular therapeutic implement; and a second tubular therapeutic implement in a tubular shape having openings on both ends, wherein the first tubular therapeutic implement includes the tubular therapeutic implement according to claim 1, and the second tubular therapeutic implement is configured to be attachable to the side opening of the first tubular therapeutic implement. ### Claim 7 (depends on 1) A tubular therapeutic implement indwelling device to indwell a tubular therapeutic implement expandable in a radial direction, wherein the tubular therapeutic implement includes the tubular therapeutic implement according to claim 1. ### Claim 8 (depends on 1) The tubular therapeutic implement according to claim 1, wherein the first region is a flat surface. ### Claim 9 (depends on 1) The tubular therapeutic implement according to claim 1, wherein the first straight portion and the second straight portion are parallel. ### Claim 10 (depends on 4) The tubular therapeutic implement according to claim 4, wherein the concave portion includes a flat bottom surface corresponding to the first region, the first straight portion and the second straight portion are disposed along the outline of the flat bottom surface.