Slippery, tenaciously adhering hydrophilic polyurethane hydrogel coatings, coated polymer substrate materials, and coated medical devices
January 25, 2017. 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 ReferencesCoated substrate having a low coefficient of friction hydrophilic coating and a method of making the same Polyurethane hydrogel and method for the production of the same Coated substrate having a low coefficient of friction hydrophilic coating and a method of making the same Method of forming a hydrophilic coating on a substrate Process for the preparation of a hydrophilic coating Medical article having a hydrophilic coating Heparinization of plasma treated surfaces Permanently bonded antithrombogenic polyurethane surface Hydrophilic polymer blend Hydrophilic coating and substrate coated therewith InventorsApplicationNo. 382478 filed on 02/01/1995US Classes:427/2.12, For contacting living body or transfusing bodily fluid (e.g., endoscope, electrode, thermometer, probe)427/2.25, Liquid conveying (e.g., vascular, arterial, bile duct, urethra)427/2.28, Device for creating or holding open an unnatural opening in a membrane or organ (e.g., syringe, scalpel, drainage tube)427/2.29, Dental product (e.g., floss, denture, orthodontia wire)427/2.3, Fluid barrier or fluid transporting product, other than merely absorbing (e.g., surgical glove, condom, lined diaper, membrane filter, IV tubing, cannula, dialysis membrane, urinary catheter)427/340, Resin, resin precursor, rubber, or hardenable oil containing coating427/412.1, Nonfibrous organic base427/536, Organic substrate427/539Oxygen containing atmosphereExaminersPrimary: Cameron, ErmaAttorney, Agent or FirmForeign Patent References
International ClassesB05D 003/06B05D 001/36 AbstractA process for the preparation of slippery, hydrophilic polyurethane hydrogel coating compositions, and materials composed of a polymeric plastic or rubber substrate or a metal substrate with a coating of a slippery, hydrophilic polyurethane hydrogel thereon, such that the coating composition tenaciously adheres to the substrate, are disclosed. The coating compositions and coated materials are non-toxic and biocompatible, and are ideally suited for use on medical devices, particularly, catheters, catheter balloons and stents. The coating compositions, coated materials and coated devices demonstrate low coefficients of friction in contact with body fluids, especially blood, as well as a high degree of wear permanence over prolonged use of the device. The hydrogel coating compositions are capable of being dried to facilitate storage of the devices to which they have been applied, and can be instantly reactivated for later use by exposure to water.Field of SearchOrganic substrateOrganic substrate Oxygen containing atmosphere For contacting living body or transfusing bodily fluid (e.g., endoscope, electrode, thermometer, probe) Implantable 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) Dental product (e.g., floss, denture, orthodontia wire) Fluid barrier or fluid transporting product, other than merely absorbing (e.g., surgical glove, condom, lined diaper, membrane filter, IV tubing, cannula, dialysis membrane, urinary catheter) Resin, resin precursor, rubber, or hardenable oil containing coating Nonfibrous organic base | |
