# US 10,245,165 B2 · Stent > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,165 B2 - Document ID: US10245165B2 - Status: Granted - Kind: B2 - Application number: 15/363,829 - Filed: 2016-11-29 - Published: 2017-03-16 - Granted: 2019-04-02 - Earliest claimed: 2009-04-02 - Assignees: Q3 Medical Devices Limited - Applicants: Q3 Medical Devices Limited - Inventors: Eric K. Mangiardi - Web page: https://patentgrep.com/patent/US10245165B2 ## CPC - A61F 2/844: folded prior to deployment - A61B 17/7233: {with special means of locking the nail to the bone} - A61B 17/7258: {with laterally expanding parts, e.g. for gripping the bone} - A61B 17/7283: {with special cross-section of the nail} - A61F 2/0095: {Packages or dispensers for prostheses or other implants (for intraocular lenses A61F2/1691; for dental surgery A61C19/02)} - A61F 2/04: Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts (A61F2/18, A61F2/20 take precedence; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95) - 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) - A61B 17/7266: {with fingers moving radially outwardly} - A61B 17/7291: {for small bones, e.g. in the foot, ankle, hand or wrist} - A61F 2002/041: {Bile ducts} - A61F 2002/048: {Ureters} - A61F 2002/068: {Modifying the blood flow model, e.g. by diffuser or deflector} - A61F 2002/30289: {helically-coiled} - A61F 2210/0004: bioabsorbable - A61F 2210/0061: swellable - A61F 2230/005: Rosette-shaped, e.g. star-shaped - A61F 2230/0054: V-shaped - A61F 2230/0091: helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section - A61F 2250/0067: Means for introducing or releasing pharmaceutical products into the body - 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 A stent is disclosed that has an elongated body composed of a bioabsorbable polymer having a proximal end, a distal end, two open spiral channels formed on the exterior surface of the body to provide fluid communication between the proximal end and the distal end. The stent also has a central lumen open at the proximal and distal ends of the stent for the passage of a guide wire. A method for using the stent and a kit containing the stent are also disclosed. ## Claims ### Claim 1 A stent comprising: an elongated body composed of a biodegradable material having a proximal end, a distal end, and two open spiral channels formed on the exterior surface of said body to provide fluid communication between said proximal end and said distal end, and a central lumen open at the proximal and distal ends of the stent for the passage of a guide wire, wherein the central lumen has a circular, oval or elliptical cross-section and is not in fluid communication with the open spiral channels. ### Claim 2 (depends on 1) The stent of claim 1, wherein said at least one open spiral channel has a rotation rate of between about 1.5 and 2.5 twists per inch. ### Claim 3 (depends on 1) The stent of claim 1, wherein said at least one open spiral channel has a rotation rate of at least about 2 twists per inch. ### Claim 4 (depends on 1) The stent of claim 1, wherein said channels are on opposite sides on the exterior surface of said body. ### Claim 5 (depends on 1) The stent of claim 1, wherein said body further comprises an anti-migration device. ### Claim 6 (depends on 1) The stent of claim 1, wherein said body further comprises a biological agent. ### Claim 7 (depends on 6) The stent of claim 6, wherein said biological agent is selected from the group consisting of chemotherapeutic agents, antimicrobial agents and gene transfer agents. ### Claim 8 (depends on 1) The stent of claim 1, wherein said stent has a pre-implantation diameter Dpre and is in situ expandable upon absorption of a body fluid to a post-implantation diameter Dpost, wherein Dpost is greater than Dpre. ### Claim 9 (depends on 1) The stent of claim 1, further comprising a radio-opaque substance. ### Claim 10 (depends on 1) The stent of claim 1, wherein the open spiral channels are formed integrally on the exterior surface of the elongated body, and wherein the central lumen has a circular cross-section. ### Claim 11 A stent comprising: an elongated body composed of a bioabsorbable polymer and having a proximal end, a distal end, two open spiral channels formed on the exterior surface of said body to provide fluid communication between said proximal end and said distal end, wherein at least one open spiral channel has a rotation rate of at least 1 twist per inch, and a central lumen open at the proximal and distal ends of the stent for the passage of a guide wire, wherein the central lumen has a circular, oval or elliptical cross-section and is not in fluid communication with the open spiral channels. ### Claim 12 (depends on 11) The stent of claim 11, wherein said bioabsorbable polymer comprises PEG and p-dioxanone. ### Claim 13 (depends on 11) The stent of claim 11, wherein said bioabsorbable polymer comprises PPDO. ### Claim 14 (depends on 11) The stent of claim 11, wherein said bioabsorbable polymer comprises PLA, trimethylene carbonate and caprolactone. ### Claim 15 (depends on 11) The stent of claim 11, wherein said at least one open spiral channel has a rotation rate of at least about 2 twists per inch. ### Claim 16 A stent comprising: an elongated body having a proximal end, a distal end, two open spiral channels formed on the exterior surface of said body to provide fluid communication between said proximal end and said distal end, wherein at least one open spiral channel has a rotation rate of between about 1.5 and 3.5 twists per inch, and a central lumen open at the proximal and distal ends of the stent for the passage of a guide wire, wherein the central lumen has a circular, oval or elliptical cross-section and is not in fluid communication with the open spiral channels. ### Claim 17 (depends on 16) The stent of claim 16, wherein said channels are on opposite sides on the exterior surface of said body. ### Claim 18 A stent comprising: an elongated body composed of a bioabsorbable polymer and having a proximal end, a distal end, a pair of open spiral channels formed on the exterior surface of said body to provide fluid communication between said proximal end and said distal end, wherein said spiral channels have a rotation rate of at least about 1 twist per inch, and a central lumen open at the proximal and distal ends of the stent for the passage of a guide wire, wherein the central lumen has a circular, oval or elliptical cross-section and is not in fluid communication with the open spiral channels. ### Claim 19 (depends on 18) The stent of claim 18, wherein said channels are on opposite sides on the exterior surface of said body.