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    • 3. 发明授权
    • Electrodes for iontophoresis
    • 离子电渗电极
    • US5558632A
    • 1996-09-24
    • US333844
    • 1994-11-03
    • Lindsay B. LloydJon E. BeckTomasz J. PetelenzClay H. HoltWilliam F. Felman
    • Lindsay B. LloydJon E. BeckTomasz J. PetelenzClay H. HoltWilliam F. Felman
    • A61N1/04A61N1/30
    • A61N1/0428A61N1/0436A61N1/044A61N1/0448
    • An improved electrode is disclosed for use in administering drug by means of iontophoresis, comprising a conductive element for receiving an electric current from a current source; a reticulated element having a plurality of reticulum for receiving an ionic drug solution for iontophoretic delivery, the reticulum being loaded or having applied thereto a hydrophilic polymer which is viscous when hydrated; and means for securing the reticulated element to the conductive element so that electric current will be distributed substantially uniformly through the reticulated element when hydrated and when current is delivered to the conductive element. The presently preferred embodiment utilizes open cell polyurethane foam as the reticulated element and high molecular weight polyethylene oxide as the hydrophilic polymer. The reticulum is further loaded with Tween 20, a surfactant, which serves to improve the rate of hydration. A reticulated element formed in accordance with the present invention is pliable and conformable both when in wet or dry state, making an electrode formed in accordance with the present invention susceptible of a wide variety of shapes and sizes and relatively easy to manufacture at reasonably low cost.
    • 公开了一种用于通过离子电渗法施用药物的改进的电极,其包括用于从电流源接收电流的导电元件; 具有多个网状物的网状元件,用于接收用于离子电渗疗法输送的离子药物溶液,所述网状物被加载或已经施加到其上,当水合时粘稠的亲水性聚合物; 以及用于将网状元件固定到导电元件的装置,使得当水合时和当电流被传送到导电元件时,电流将基本上均匀地分布通过网状元件。 目前优选的实施方案使用开孔聚氨酯泡沫作为网状元素和高分子量聚环氧乙烷作为亲水性聚合物。 网状物进一步装载有用于提高水合速率的表面活性剂吐温20。 根据本发明形成的网状元件在湿或干态下既柔韧又顺应,使得根据本发明形成的电极易于形成多种形状和尺寸,并且以相当低的成本相对容易制造 。
    • 4. 发明授权
    • Electrodes for iontophoresis
    • 离子电渗电极
    • US5374241A
    • 1994-12-20
    • US45040
    • 1993-04-07
    • Lindsay B. LloydJon E. BeckTomasz J. PetelenzClay H. HoltWilliam F. Felman
    • Lindsay B. LloydJon E. BeckTomasz J. PetelenzClay H. HoltWilliam F. Felman
    • A61N1/04A61N1/30
    • A61N1/0428A61N1/0436A61N1/044A61N1/0448
    • An improved electrode is disclosed for use in administering drug by means of iontophoresis, comprising a conductive element for receiving an electric current from a current source; a reticulated element having a plurality of reticulum for receiving an ionic drug solution for iontophoretic delivery, the reticulum being loaded or having applied thereto a hydrophilic polymer which is viscous when hydrated; and means for securing the reticulated element to the conductive element so that electric current will be distributed substantially uniformly through the reticulated element when hydrated and when current is delivered to the conductive element. The presently preferred embodiment utilizes open cell polyurethane foam as the reticulated element and high molecular weight polyethylene oxide as the hydrophilic polymer. The reticulum is further loaded with Tween 20, a surfactant, which serves to improve the rate of hydration. A reticulated element formed in accordance with the present invention is pliable and conformable both when in wet or dry state, making an electrode formed in accordance with the present invention susceptible of a wide variety of shapes and sizes and relatively easy to manufacture at reasonably low cost.
    • 公开了一种用于通过离子电渗法施用药物的改进的电极,其包括用于从电流源接收电流的导电元件; 具有多个网状物的网状元件,用于接收用于离子电渗疗法输送的离子药物溶液,所述网状物被加载或已经施加到其上,当水合时粘稠的亲水性聚合物; 以及用于将网状元件固定到导电元件的装置,使得当水合时和当电流被传送到导电元件时,电流将基本上均匀地分布通过网状元件。 目前优选的实施方案使用开孔聚氨酯泡沫作为网状元素和高分子量聚环氧乙烷作为亲水性聚合物。 网状物进一步装载有用于提高水合速率的表面活性剂吐温20。 根据本发明形成的网状元件在湿或干态下既柔韧又顺应,使得根据本发明形成的电极易于形成多种形状和尺寸,并且以相当低的成本相对容易制造 。
    • 5. 发明授权
    • Iontophoretic delivery device with integral hydrating means
    • 具有整体保湿手段的离子电渗输送装置
    • US06223075B1
    • 2001-04-24
    • US08762051
    • 1996-12-09
    • Jon E. BeckLindsay B. LloydTomasz J. Petelenz
    • Jon E. BeckLindsay B. LloydTomasz J. Petelenz
    • A61N130
    • A61N1/0448A61N1/0444
    • The present invention provides methods and apparatus permitting rapid and thorough hydration of an initially dry hydratable matrix element contained within an iontophoretic bioelectrode. The apparatus of the invention comprises a bioelectrode system for iontophoretic delivery of medicaments having at least one hydratable matrix element and associated removable hydration assembly. The preferred embodiment of the present invention comprises two hydratable matrix elements each having an associated removable hydration assembly and each being associated with an electrical current distribution element. The removable hydration assembly includes an initially sealed liquid-storage component which maintains the desired hydrating liquid in isolation from the hydratable matrix element until such time as hydration is desired. At that time, the removable hydration assembly can be activated by the user through application of force to an extending tab member attached to the sealed liquid-storage component thereby causing progressive unsealing of the sealed liquid-storage component and progressively depositing the hydrating liquid uniformly onto the entire surface of the hydratable matrix element. Following hydration of the matrix element, the spent hydration assembly can be withdrawn completely from within the bioelectrode system.
    • 本发明提供允许快速且彻底水化包含在离子电渗生物电极内的初始干燥的可水合的基质元素的方法和装置。 本发明的装置包括用于离子电渗疗法输送具有至少一个可水合基质元件和相关的可移除水合组合物的生物电极系统。 本发明的优选实施方案包括两个可水合的基质元素,每个具有相关的可移除的水合组合,并且每个与电流分布元件相关联。 可移除水合组件包括初始密封的液体储存组分,其将期望的保湿液体与可水合的基质元件隔离,直到需要水合为止。 此时,可拆卸水合组件可以由用户通过向连接到密封的液体储存部件的延伸片部件施加力来启动,从而引起密封的液体储存部件的逐渐开封,并逐渐将水合液体均匀地沉积到 水合基质元素的整个表面。 在水化基质元素之后,废水合组件可以从生物电极系统内完全取出。
    • 6. 发明授权
    • Iontophoretic delivery device with integral hydrating means
    • 具有整体保湿手段的离子电渗输送装置
    • US5730716A
    • 1998-03-24
    • US711816
    • 1996-09-10
    • Jon E. BeckLindsay B. LloydTomasz J. Petelenz
    • Jon E. BeckLindsay B. LloydTomasz J. Petelenz
    • A61N1/30
    • A61N1/0448A61N1/0444
    • The present invention provides methods and apparatus permitting rapid and thorough hydration of an initially dry hydratable matrix element contained within an iontophoretic bioelectrode. The apparatus of the invention comprises a bioelectrode system for iontophoretic delivery of medicaments having at least one hydratable matrix element and associated removable hydration assembly. The preferred embodiment of the present invention comprises two hydratable matrix elements each having an associated removable hydration assembly and each being associated with an electrical current distribution element. The removable hydration assembly includes an initially sealed liquid-storage component which maintains the desired hydrating liquid in isolation from the hydratable matrix element until such time as hydration is desired. At that time, the removable hydration assembly can be activated by the user through application of force to an extending tab member attached to the sealed liquid-storage component thereby causing progressive unsealing of the sealed liquid-storage component and progressively depositing the hydrating liquid uniformly onto the entire surface of the hydratable matrix element. Following hydration of the matrix element, the spent hydration assembly can be withdrawn completely from within the bioelectrode system.
    • 本发明提供允许快速且彻底水化包含在离子电渗生物电极内的初始干燥的可水合的基质元素的方法和装置。 本发明的装置包括用于离子电渗疗法输送具有至少一个可水合基质元件和相关的可移除水合组合物的生物电极系统。 本发明的优选实施方案包括两个可水合的基质元素,每个具有相关的可移除的水合组合,并且每个与电流分布元件相关联。 可移除水合组件包括初始密封的液体储存组分,其将期望的保湿液体与可水合的基质元件隔离,直到需要水合为止。 此时,可拆卸水合组件可以由用户通过向连接到密封的液体储存部件的延伸片部件施加力来启动,从而引起密封的液体储存部件的逐渐开封,并逐渐将水合液体均匀地沉积到 水合基质元素的整个表面。 在水化基质元素之后,废水合组件可以从生物电极系统内完全取出。
    • 7. 发明授权
    • High current density iontophoretic device and method of use thereof
    • 高电流密度离子电渗装置及其使用方法
    • US06546283B1
    • 2003-04-08
    • US09691411
    • 2000-10-18
    • Jon E. BeckLindsay B. Lloyd
    • Jon E. BeckLindsay B. Lloyd
    • A61N130
    • A61N1/30
    • A high current density iontophoretic device, comprising a reservoir, an applicator, an orientation maintaining member and an iontophoretic medicament administering member. The reservoir is capable of retaining medicament. The applicator is positionable upon a surface of an eye and includes at least one punctation therethrough. The at least one punctation is capable of being placed in fluid communication with each of the reservoir and at least one treatment area of an eye upon operative positioning of same. The orientation member substantially maintains the orientation of the applicator in the desired orientation upon operative positioning of same. The iontophoretic administering member serves to administer a medicament from the reservoir to the at least one punctation and, in turn, to a specific region of an eye of a patient.
    • 一种高电流密度离子电渗疗法装置,包括储存器,施用器,取向保持构件和离子电渗疗法施用构件。 储存器能够保留药物。 施用器可定位在眼睛的表面上并且包括穿过其中的至少一个刺孔。 至少一个点状物能够在其相应的操作定位时与每个储存器和眼睛的至少一个治疗区域流体连通。 定位构件在其操作定位时基本上将敷贴器的取向保持在期望的取向。 离子电渗疗法施用组件用于将药物从储存器施用至至少一个刺孔,并且依次进入患者眼睛的特定区域。