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    • 58. 发明授权
    • Medical copolymers
    • 医用共聚物
    • US08187623B2
    • 2012-05-29
    • US12491467
    • 2009-06-25
    • J. Thomas IppolitiScott ScheweRobert W. WarnerMichele Zoromski
    • J. Thomas IppolitiScott ScheweRobert W. WarnerMichele Zoromski
    • A61F2/00A61K9/14
    • C08G61/08A61L31/06A61L31/10C08G61/12C08G2261/147C08G2261/3324C08G2261/3342C08G2261/418
    • Medical copolymers are provided which comprise (a) a polymer backbone comprising (i) a plurality of —C═C— groups within the polymer backbone, (ii) a plurality of —R9— groups within the polymer backbone, wherein R9 comprises a radical-substituted C2-C10 cyclic or heterocyclic group, or (iii) both a plurality of —C═C— groups and a plurality of —R9— groups within the polymer backbone, (b) a plurality of hydrocarbon-based pendant groups along the polymer backbone that comprise a saturated or unsaturated carbon chain of at least four carbons in length, and (c) a plurality of zwitterionic pendant groups along the polymer backbone that comprise a positively charged quaternary ammonium group and a negatively charged phosphate group. Methods of forming such copolymers, medical products that contain such copolymers, and methods of making such medical products are also disclosed.
    • 提供医疗共聚物,其包含(a)聚合物主链,其包含(i)聚合物主链内的多个-C≡C-基团,(ii)聚合物主链内的多个-R9-基团,其中R9包含基团 - 取代的C 2 -C 10环状或杂环基团,或(iii)聚合物主链内的多个-C≡C-基团和多个-R9-基团,(b)多个基于烃基的侧基 包括长度为至少四个碳的饱和或不饱和碳链的聚合物主链,和(c)沿聚合物主链的多个两性离子侧基,其包含带正电荷的季铵基和带负电荷的磷酸基。 还公开了形成这种共聚物的方法,含有这些共聚物的医药产品,以及制造这种医药产品的方法。
    • 60. 发明授权
    • Medical devices for delivery of therapeutic agent in conjunction with galvanic corrosion
    • 用于递送治疗剂与电化学腐蚀的医疗装置
    • US08114148B2
    • 2012-02-14
    • US12489948
    • 2009-06-23
    • Liliana AtanasoskaJan WeberPaul GrossoRobert W. WarnerKasyap V. Seethamraju
    • Liliana AtanasoskaJan WeberPaul GrossoRobert W. WarnerKasyap V. Seethamraju
    • A61F2/82
    • A61L31/022A61L31/10A61L31/14A61L31/148A61L31/16A61L2300/00
    • According to an aspect of the present invention, at least one ionic therapeutic agent is delivered from an implantable or insertable medical device that comprises an ion-conductive polymeric region that is disposed on a metallic region. The metallic region is in electrical contact with a dissimilar metallic region, such that a galvanic current is generated by the dissimilar metals when the device is implanted or inserted into a patient. Delivery of the ionic therapeutic agent from the ion-conductive polymeric region may be, for example, either accelerated or retarded by the galvanic current. According to another aspect of the present invention, implantable or insertable medical devices are provided which comprise: (a) a first metallic region having a first corrosion potential, (b) a second metallic region in electrical contact with the first metallic region and having a second corrosion potential that is greater than the first corrosion potential, and (c) a solid ion-conductive polymeric region, comprising an ion conducting polymer and an ionic therapeutic agent, disposed on the first metallic region, the second metallic region, or both.
    • 根据本发明的一个方面,至少一种离子治疗剂从可植入或可插入的医疗装置输送,其包括设置在金属区域上的离子导电聚合物区域。 金属区域与异种金属区域电接触,使得当器件植入或插入患者体内时,异种金属产生电流。 离子导电聚合物区域的离子治疗剂的递送可以例如由电流加速或延迟。 根据本发明的另一方面,提供了可植入或可插入的医疗装置,其包括:(a)具有第一腐蚀电位的第一金属区域,(b)与第一金属区域电接触的第二金属区域, 第二腐蚀电位大于第一腐蚀电位,和(c)固体离子传导聚合物区域,其包含离子导电聚合物和离子治疗剂,设置在第一金属区域,第二金属区域或两者上。