# US 10,500,072 B2 · Method of treating vascular bifurcations > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,500,072 B2 - Document ID: US10500072B2 - Status: Granted - Kind: B2 - Application number: 15/640,208 - Filed: 2017-06-30 - Published: 2017-12-21 - Granted: 2019-12-10 - Earliest claimed: 2010-11-24 - Assignees: Poseidon Medical Inc. - Applicants: Tryton Medical, Inc. - Inventors: H. Richard Davis; Aaron Kaplan - Web page: https://patentgrep.com/patent/US10500072B2 ## CPC - A61F 2/82: Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents (stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07) - A61F 2/915: with bands having a meander structure, adjacent bands being connected to each other - A61F 2002/821: {Ostial stents} - A61F 2002/91525: {within the whole structure different bands showing different meander characteristics, e.g. frequency or amplitude} - A61F 2002/91575: {connected peak to trough} - A61F 2220/0008: Fixation appliances for connecting prostheses to the body - A61F 2220/0016: with sharp anchoring protrusions, e.g. barbs, pins, spikes - A61F 2230/0013: Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped - 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 prosthesis is disclosed for placement across an ostium opening from a main body lumen to a branch body lumen. The prosthesis comprises a radially expansible support, at least two axially elongate longitudinal members, at least one of which can be fronds, extending from an end of the support, and a circumferential member connected to at least one axially elongate longitudinal member and unconnected to at least one other axially elongate longitudinal member. ## Claims ### Claim 1 A method of treating a bifurcation between a first body lumen and a second body lumen, comprising: advancing a prosthesis to the bifurcation, the prosthesis comprising a radially expansible support, a transition portion having a first end coupled with the support, a circumferential member spaced axially from the radially expansible support, wherein the transition portion comprises a plurality of second ends, at least one of the second ends coupled with the circumferential member via a single filament, and one or more of the second ends not coupled with the circumferential member; deploying the support in the first body lumen; positioning the first end of the transition portion on a first body lumen side of an ostium opening; and deploying the circumferential member in the second body lumen at a distance from the bifurcation, wherein the one or more of the second ends not coupled with the circumferential member is positioned on a second body lumen side of the ostium opening. ### Claim 2 (depends on 1) The method of claim 1, wherein the one or more of the second ends not coupled with the circumferential member is positioned at a proximal second body lumen location. ### Claim 3 (depends on 1) The method of claim 1, wherein the one or more of the second ends not coupled with the circumferential member is positioned at a distal second body lumen location. ### Claim 4 (depends on 1) The method of claim 1, wherein the one or more of the second ends not coupled with the circumferential member is positioned at a proximal second body lumen location and at a distal second body lumen location. ### Claim 5 (depends on 1) The method of claim 1, wherein deploying the circumferential member in the second body lumen comprises engaging the circumferential member with a second body vessel wall. ### Claim 6 (depends on 5) The method of claim 5, further comprising expanding the support and the transition portion. ### Claim 7 (depends on 1) The method of claim 1, further comprising transferring force applied to the support or the transition portion to the circumferential member via the single filament. ### Claim 8 (depends on 1) The method of claim 1, further comprising deploying a second device in the second body lumen. ### Claim 9 (depends on 8) The method of claim 8, wherein deploying the second device comprises deploying the second device within the circumferential member. ### Claim 10 (depends on 9) The method of claim 9, further comprising advancing the second device in the second body lumen and pushing the one or more of the second ends not coupled to the circumferential member to a distal second body lumen location. ### Claim 11 (depends on 10) The method of claim 10, further comprising expanding the second device. ### Claim 12 (depends on 11) The method of claim 11, wherein expanding the second device comprises entrapping the circumferential member between the second device and a second body vessel wall. ### Claim 13 (depends on 11) The method of claim 11, wherein expanding the second device comprises entrapping the one or more of the second ends not coupled with the circumferential member between the second device and a second body vessel wall. ### Claim 14 (depends on 1) The method of claim 1, wherein at least a portion of the prosthesis decreases in mass over time. ### Claim 15 (depends on 14) The method of claim 14, wherein the circumferential member is bioabsorbable. ### Claim 16 (depends on 14) The method of claim 14, wherein the circumferential member is bioerodable. ### Claim 17 (depends on 14) The method of claim 14, wherein the circumferential member is biodegradable. ### Claim 18 (depends on 14) The method of claim 14, wherein a polymer matrix on a surface of the prosthesis decreases in mass over time. ### Claim 19 (depends on 14) The method of claim 14, wherein any one or combination of the support and the transition portion decreases in mass over time. ### Claim 20 (depends on 14) The method of claim 14, wherein a proximal or distal portion of the prosthesis including the circumferential member decreases in mass over time. ### Claim 21 A method of treating a bifurcation between a first body lumen and a second body lumen, comprising: providing a prosthesis comprising a radially expansible support, a transition portion having a first end coupled with the support, a circumferential member spaced axially from the radially expansible support, wherein the transition portion comprises a plurality of second ends, at least one of the second ends coupled with the circumferential member via a single filament, and one or more of the second ends not coupled with the circumferential member; transluminally navigating the prosthesis to a treatment site; deploying the support in the first body lumen; positioning the first end of the transition portion on a first body lumen side of an ostium opening; deploying the circumferential member in the second body lumen at a distance from the bifurcation; and positioning the one or more of the second ends not coupled with the circumferential member on a second body lumen side of the ostium opening.