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    • 46. 发明授权
    • Low profile inlet valve for a piston pump therapeutic substance delivery device
    • 用于活塞泵治疗物质输送装置的低轮廓入口阀
    • US07981107B2
    • 2011-07-19
    • US11435582
    • 2006-05-17
    • James M. Olsen
    • James M. Olsen
    • A61M1/00A61M31/00A61M37/00A61K9/22
    • A61M5/14276A61M5/14216A61M39/22
    • Low profile inlet valve embodiments for a piston pump therapeutic substance infusion device are disclosed that reduce dead volume, occupies little residential space, operates rapidly, and have many other improvements. The therapeutic substance infusion device has a housing, a therapeutic substance reservoir, a power source carried in the housing, electronics, a piston pump, and an inlet valve. The piston pump is configured for pumping therapeutic substance from the therapeutic substance reservoir through an infusion port at a programmed rate. The inlet valve is in fluid communication with a reservoir outlet to control the flow of therapeutic substance into the piston pump. The inlet valve has a substantially coplanar valve surface and valve spring. Many embodiments of the low profile inlet valve and its methods of operation are possible.
    • 公开了一种用于活塞泵治疗物质输注装置的低轮廓入口阀实施例,其减少死体积,占用少量住宅空间,快速操作,并且具有许多其它改进。 治疗物质输注装置具有壳体,治疗物质储存器,承载在壳体中的电源,电子器件,活塞泵和入口阀。 活塞泵被配置为以编程速率从治疗物质储存器通过输注端口泵送治疗物质。 入口阀与储存器出口流体连通以控制治疗物质流入活塞泵的流动。 入口阀具有基本上共面的阀表面和阀弹簧。 薄型入口阀的许多实施例及其操作方法是可能的。
    • 49. 发明授权
    • Implantable drug delivery pump with desiccant humidity protection
    • 具有干燥剂湿度保护的植入式药物输送泵
    • US06685452B2
    • 2004-02-03
    • US09925598
    • 2001-08-09
    • Chris C. ChristiansenJames M. Olsen
    • Chris C. ChristiansenJames M. Olsen
    • F04B3900
    • A61M5/14276
    • A human body implantable drug delivery pump has a housing including at least a first shield and a second shield. The housing defines an interior within the shields. The pump further includes a fluid reservoir within the housing, a fluid conduit also within the housing from the reservoir, an outlet from the fluid conduit to the exterior of the housing, and a pump member in the housing adapted to move fluid through the fluid conduit to the outlet. The fluid in the reservoir and fluid conduit is isolated from the pump interior. The pump further has a desiccant in the pump interior, the desiccant absorbent of moisture in the pump interior, and preferably absorbent of substantially all the moisture in the pump interior. The desiccant also preferably has a moisture absorbent property dependent on temperature, being lessened at higher temperatures, the desiccant being pre-baked to improve its moisture absorbent property before being placed in the pump.
    • 人体可植入药物输送泵具有至少包括第一屏蔽和第二屏蔽的壳体。 壳体限定了屏蔽内的内部。 所述泵还包括在所述壳体内的流体贮存器,还存在从所述容器的壳体内的流体导管,从所述流体导管到所述壳体的外部的出口以及所述壳体中的泵构件,其适于将流体移动通过所述流体导管 到出口。 储存器和流体导管中的流体与泵内部隔离。 泵还在泵内部具有干燥剂,泵内部的湿气的干燥剂吸收剂,并且优选地在泵内部基本上吸收所有的水分。 干燥剂还优选具有取决于温度的吸湿性,在较高温度下减弱,干燥剂被预烘烤以在放入泵之前改善其吸湿性能。
    • 50. 发明授权
    • Overfill protection systems for implantable drug delivery devices
    • 用于可植入药物输送装置的溢出保护系统
    • US06228050B1
    • 2001-05-08
    • US09303006
    • 1999-04-30
    • James M. OlsenReginald D. RobinsonChris ChristiansenPaul Kratoska
    • James M. OlsenReginald D. RobinsonChris ChristiansenPaul Kratoska
    • A61M1100
    • A61M5/14276A61M39/22A61M2209/045
    • The displacement of refill valves in an implantable drug delivery device is reduced to permit the housings of a drug delivery device to remain compact in size while permitting reservoirs of increased depth to be used. In a preferred embodiment, a collapsible link is provided as a telescoping member incorporating a coil spring. As the valve is pulled into contact with its seat, a detectable pressure increase is sensed in the refill device. In accordance with the invention, as the drug supply contained in the reservoir depletes, the reservoir surface moves towards a collapsed position, compressing the coil spring and eventually contacting the valve stem, thereby lifting the valve from its seat. By virtue of telescoping link, the valve stem length and therefore the valve travel may be reduced as compared to prior art devices, thus eliminating the need for increased housing depth when deeper reservoirs are used. The collapsible link may be comprised of a second spring combined with a telescoping link. The second spring is situated on a side of the valve opposite the telescoping link, thereby providing a downward force on the valve and valve stem. As an other alternative, the invention provides a lever arm for actuating the refill valve. A pivot for the lever arm is situated near the refill valve and a distal end of the lever arm maintained in contact with the reservoir surface using a spring bias. An intermediate portion of the lever arm engages the valve stem. Thus, as the reservoir surface moves towards the collapsed position, the displacement of the valve is a fraction of the displacement of the distal end of the lever arm.
    • 可植入药物输送装置中的再填充阀的位移被减少以允许药物输送装置的壳体保持紧凑的尺寸,同时允许使用增加深度的储存器。 在优选实施例中,可折叠连杆被提供为包括螺旋弹簧的伸缩构件。 当阀被拉动与其座位接触时,在再填充装置中感测到可检测的压力增加。 根据本发明,随着储存器中所含的药物供给消耗,贮存器表面向收缩位置运动,压缩螺旋弹簧并最终接触阀杆,从而将阀从其座上提起。 通过伸缩连杆,与现有技术的装置相比,阀杆长度和阀行程可以减小,从而在使用更深的储存器时消除了增加壳体深度的需要。 可折叠连杆可以由与伸缩连杆组合的第二弹簧构成。 第二弹簧位于与伸缩连杆相对的阀的一侧,从而在阀和阀杆上提供向下的力。 作为另一种替代方案,本发明提供一种用于致动再填充阀的杠杆臂。 用于杠杆臂的枢轴位于补充阀附近,并且杠杆臂的远端使用弹簧偏压保持与储存器表面接触。 杠杆臂的中间部分与阀杆接合。 因此,当储存器表面朝向折叠位置移动时,阀的位移是杠杆臂的远端的位移的一部分。