Intravascular stent and method
June 7, 2015. 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 ReferencesIntravaginal ring One step anticoagulant coating Dry coating of surgical filaments Preparation of protein films Expandable intraluminal graft, and method and apparatus for implanting an expandable intraluminal graft Biomaterial implants which resist calcification Endovascular stent and delivery system Process for producing a medical vinyl chloride resin material Intravascular radially expandable stent and method of implant Prosthetic heart valve InventorAssigneeApplicationNo. 482346 filed on 06/07/1995US Classes:427/2.14, Particulate or unit-dosage-article base (e.g., tablet, pill, pellet, capsule, liposome, powder, controlled-release implant, suppository; excluding transdermal patch)427/2.24, Implantable permanent prosthesis (i.e., artificial body member) (e.g., pacemaker, lens, cornea, glaucoma shunt, heart valve, muscle, spinal disc, breast, internal organ)427/352Liquid extraction of coating constituent or cleaning coatingExaminersPrimary: Dudash, DianaAttorney, Agent or FirmForeign Patent References
International ClassesB05D 003/00B05D 001/38 A61J 003/00 A61L 027/00 AbstractA method for making an intravascular stent by applying to the body of a stent a solution which includes a solvent, a polymer dissolved in the solvent and a therapeutic substance dispersed in the solvent and then evaporating the solvent. The inclusion of a polymer in intimate contact with a drug on the stent allows the drug to be retained on the stent during expansion of the stent and also controls the administration of drug following implantation. The adhesion of the coating and the rate at which the drug is delivered can be controlled by the selection of an appropriate bioabsorbable or biostable polymer and the ratio of drug to polymer in the solution. By this method, drugs such as dexamethasone can be applied to a stent, retained on a stent during expansion of the stent and elute at a controlled rate.Other References
Field of SearchImplantable permanent prosthesis (i.e., artificial body member) (e.g., pacemaker, lens, cornea, glaucoma shunt, heart valve, muscle, spinal disc, breast, internal organ)Liquid conveying (e.g., vascular, arterial, bile duct, urethra) Device for creating or holding open an unnatural opening in a membrane or organ (e.g., syringe, scalpel, drainage tube) Retarded or controlled-release layer produced (e.g., enteric) Liquid extraction of coating constituent or cleaning coating With water Particulate or unit-dosage-article base (e.g., tablet, pill, pellet, capsule, liposome, powder, controlled-release implant, suppository; excluding transdermal patch) | |
