Hydrophilic stent
May 7, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1887526 Cervical dilator Body orifice accessory Catheter Transluminally placed expandable graft prosthesis Triaxially-braided fabric prosthesis Prosthesis comprising an expansible or contractile tubular body Expandable intraluminal graft, and method and apparatus for implanting an expandable intraluminal graft Expandable intraluminal graft, and method and apparatus for implanting an expandable intraluminal graft Process for the preparation of a hydrophilic water swellable graft copolymer InventorApplicationNo. 883241 filed on 05/07/1992US Classes:623/1.2, Self-expanding stent606/194Inserted in vascular systemExaminersPrimary: Rosenbaum, C. FredAssistant: Maglione, Corrine Attorney, Agent or FirmForeign Patent References
International ClassA61M 029/02AbstractA stent for placement within a body lumen and comprising a wall structure wherein at least a portion thereof is a hollow wall. The hollow wall has disposed therein a hydrophilic material which can be in the form of a gel, for example, which swells upon introduction of a liquid into the hollow wall to thereby achieve inflation thereof. The hollow wall is fabricated of a semi-permeable membrane whereby fluid from tissues surrounding the stent at the site of placement can pass through the membrane and swell the hydrophilic material to thereby inflate the hollow wall. A drug can be disposed with the hydrophilic material for release through the membrane at the site of stent placement. The entire wall structure of the stent can be a hollow wall, or the wall structure can incorporate both hollow and non-hollow wall portions such as hollow and solid fibers which are braided, woven or wound together.Field of SearchDEVICES TRANSFERRING FLUIDS FROM WITHIN ONE AREA OF BODY TO ANOTHER (E.G., SHUNTS, ETC.)Body inserted tubular conduit structure (e.g., needles, cannulas, nozzles, trocars, catheters, etc.) With body soluble, antibactericidal or lubricating materials on conduit Treating material insert retained in body orifice Inflatable or expandible by fluid Inserted in vascular system Expanding dilator (e.g., expanding arm, etc.) Means for inserting or removing conduit within body | |
