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    • 3. 发明授权
    • Internal medical devices for delivery of therapeutic agent in conjunction with a source of electrical power
    • 用于与电力源一起递送治疗剂的内部医疗装置
    • US07850645B2
    • 2010-12-14
    • US11055930
    • 2005-02-11
    • Liliana AtanasoskaThomas J. HolmanJan WeberRobert WarnerScott Schewe
    • Liliana AtanasoskaThomas J. HolmanJan WeberRobert WarnerScott Schewe
    • A61M29/00
    • A61N1/325A61N1/05A61N1/306A61N1/327
    • The invention generally relates to internal (e.g., implantable, insertable, etc.) drug delivery devices which contain the following: (a) one or more sources of one or more therapeutic agents; (b) one or more first electrodes, (c) one or more second electrodes and (d) one or more power sources for applying voltages across the first and second electrodes. The power sources may be adapted, for example, to promote electrically assisted therapeutic agent delivery within a subject, including electroporation and/or iontophoresis. In one aspect of the invention, the first and second electrodes are adapted to have tissue of a subject positioned between them upon deployment of the medical device within the subject, such that an electric field may be generated, which is directed into the tissue. Furthermore, the therapeutic agent sources are adapted to introduce the therapeutic agents into the electric field. In another aspect, the therapeutic agent sources are polymeric regions that contain one or more types of ion-conductive polymers and one or more types of charged therapeutic agents. In yet another aspect, the therapeutic agent sources are polymeric regions that contain one or more types of electrically conductive polymers and one or more types of charged therapeutic agents.
    • 本发明一般涉及含有以下物质的内部(例如,可植入,可插入等)药物递送装置:(a)一种或多种一种或多种治疗剂来源; (b)一个或多个第一电极,(c)一个或多个第二电极和(d)用于在第一和第二电极上施加电压的一个或多个电源。 电源可以适应于例如促进受试者内的电辅助治疗剂递送,包括电穿孔和/或离子电渗疗法。 在本发明的一个方面中,第一和第二电极适于在医疗装置在受试者内展开时使被检体的组织位于它们之间,使得可以产生被引导到组织中的电场。 此外,治疗剂源适于将治疗剂引入电场。 另一方面,治疗剂来源是含有一种或多种类型的离子导电聚合物和一种或多种类型的带电治疗剂的聚合物区域。 在另一方面,治疗剂来源是含有一种或多种类型的导电聚合物和一种或多种类型的带电治疗剂的聚合物区域。
    • 5. 发明授权
    • Implantable or insertable medical devices for controlled delivery of a therapeutic agent
    • 可植入或可插入的医疗装置,用于治疗剂的控制递送
    • US07901702B2
    • 2011-03-08
    • US11518647
    • 2006-09-11
    • Marlene C. Schwarz
    • Marlene C. Schwarz
    • A61F13/00A61F2/00
    • A61L31/10A61L27/34A61L27/56A61L29/085A61L29/16A61L2300/416A61L2300/602
    • The present invention is directed to novel implantable or insertable medical devices that provide controlled release of a therapeutic agent. According to an embodiment of the present invention, a therapeutic-agent-releasing medical device is provided, which comprises: (a) an implantable or insertable medical device; (b) a release layer disposed over at least a portion of the implantable or insertable medical device; and (c) a therapeutic agent. The release layer comprises a styrene copolymer and at least one additional polymer. The release layer regulates the rate of release of the therapeutic agent from the medical device upon implantation or insertion of the device into a patient. The present invention is also directed to methods of forming the above implantable or insertable medical devices, methods of administering a therapeutic agent to a patient using such devices, and methods of modulating the release of therapeutic agent from such devices.
    • 本发明涉及提供治疗剂受控释放的新型可植入或可插入的医疗装置。 根据本发明的一个实施方案,提供了一种治疗剂释放医疗装置,其包括:(a)可植入或可插入的医疗装置; (b)设置在所述可植入或可插入医疗装置的至少一部分上的释放层; 和(c)治疗剂。 脱模层包含苯乙烯共聚物和至少一种另外的聚合物。 释放层调节在将装置植入或插入患者体内治疗剂从医疗装置释放的速率。 本发明还涉及形成上述可植入或可插入医疗装置的方法,使用这种装置向患者施用治疗剂的方法,以及调节治疗剂从这些装置释放的方法。
    • 9. 发明授权
    • Processes for producing polymer coatings through surface polymerization
    • 通过表面聚合生产聚合物涂层的方法
    • US07931932B2
    • 2011-04-26
    • US12070275
    • 2008-02-14
    • Robert A. HerrmannFrederick H. StricklerWendy NaimarkPeter L. Dayton
    • Robert A. HerrmannFrederick H. StricklerWendy NaimarkPeter L. Dayton
    • B05D3/06C08F2/46C08F295/00A61F2/06
    • A61L31/10A61L31/16A61L2300/606
    • A medical device with a therapeutic agent-releasing polymer coating. The medical device is provided by a method that comprises: (a) attaching at least one reactive species to a medical device surface, which reactive species leads to chain growth polymerization in the presence of monomer; (b) contacting the reactive species with at least one monomer species, thereby forming a polymer coating on the surface of the medical device; and (c) providing at least one therapeutic agent within the polymer coating. The therapeutic agent may be incorporated during formation of the polymer coating or after formation of the polymer coating. The at least one reactive species can comprise, for example, a free radical species, a carbanion species, a carbocation species, a Ziegler-Natta polymerization complex, a metallocene complex, and/or an atom transfer radical polymerization initiator. Alternatively, the medical device is provided by a process comprising: (a) immobilizing least one polymerization catalyst at a medical device surface, which polymerization catalyst leads to polymerization in the presence of monomer; (b) contacting the medical device surface with at least one monomer species, thereby forming a polymer coating at the surface of the medical device; and (c) providing at least one therapeutic agent within the polymer coating.
    • 具有治疗剂释放聚合物涂层的医疗装置。 该医疗装置由一种方法提供,该方法包括:(a)将至少一种反应性物质附着到医疗器械表面上,该反应性物质在单体存在下导致链增长聚合; (b)使反应性物质与至少一种单体物质接触,从而在医疗装置的表面上形成聚合物涂层; 和(c)在聚合物涂层内提供至少一种治疗剂。 治疗剂可以在形成聚合物涂层期间或在形成聚合物涂层之后引入。 至少一种反应性物质可以包括例如自由基物质,碳负离子物质,碳阳离子物质,齐格勒 - 纳塔聚合配合物,茂金属络合物和/或原子转移自由基聚合引发剂。 或者,医疗装置由包括以下步骤的方法提供:(a)在医疗器械表面固定最少一种聚合催化剂,该聚合催化剂在单体存在下导致聚合; (b)使医疗器械表面与至少一种单体物质接触,从而在医疗装置的表面形成聚合物涂层; 和(c)在聚合物涂层内提供至少一种治疗剂。