# US 10,117,760 B2 · Stent > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,117,760 B2 - Document ID: US10117760B2 - Status: Granted - Kind: B2 - Application number: 15/173,312 - Filed: 2016-06-03 - Published: 2016-10-27 - Granted: 2018-11-06 - 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/US10117760B2 ## 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) - 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 2/844: folded prior to deployment - 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 having a proximal end, a distal end, at least one open spiral channel 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 having a proximal end, a distal end, at least one open spiral channel 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 channel. ### Claim 2 (depends on 1) The stent of claim 1, wherein the body is composed of a bioabsorbable polymer. ### Claim 3 (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 4 (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 5 (depends on 1) The stent of claim 1, comprising two open spiral channels formed on the exterior surface of said body. ### Claim 6 (depends on 5) The stent of claim 5, wherein said channels are on opposite sides on the exterior surface of said body. ### Claim 7 (depends on 1) The stent of claim 1, wherein said body further comprises an anti-migration device. ### Claim 8 (depends on 1) The stent of claim 1, wherein said body further comprises a biological agent. ### Claim 9 (depends on 8) The stent of claim 8, wherein said biological agent is selected from the group consisting of chemotherapeutic agents, antimicrobial agents and gene transfer agents. ### Claim 10 (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 11 (depends on 1) The stent of claim 1, further comprising a radio-opaque substance. ### Claim 12 (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 13 A stent comprising: an elongated body composed of a bioabsorbable polymer and having a proximal end, a distal end, at least one open spiral channel formed on the exterior surface of said body to provide fluid communication between said proximal end and said distal end, wherein said 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 channel. ### Claim 14 (depends on 13) The stent of claim 13, wherein said bioabsorbable polymer comprises PEG and p-dioxanone. ### Claim 15 (depends on 13) The stent of claim 13, wherein said bioabsorbable polymer comprises PPDO. ### Claim 16 (depends on 13) The stent of claim 13, wherein said bioabsorbable polymer comprises PLA, trimethylene carbonate and caprolactone. ### Claim 17 (depends on 13) The stent of claim 13, wherein said at least one open spiral channel has a rotation rate of at least about 2 twists per inch. ### Claim 18 (depends on 13) The stent of claim 13, comprising two open spiral channels formed on the exterior surface of said body. ### Claim 19 (depends on 18) The stent of claim 18, wherein said channels are on opposite sides on the exterior surface of said body. ### Claim 20 A stent comprising: an elongated body having a proximal end, a distal end, at least one open spiral channel formed on the exterior surface of said body to provide fluid communication between said proximal end and said distal end, wherein said 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 channel. ### Claim 21 (depends on 20) The stent of claim 20, comprising two open spiral channels formed on the exterior surface of said body. ### Claim 22 (depends on 21) The stent of claim 21, wherein said channels are on opposite sides on the exterior surface of said body. ### Claim 23 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 24 (depends on 23) The stent of claim 23, wherein said channels are on opposite sides on the exterior surface of said body.