会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 52. 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。
    • 53. 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。
    • 60. 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
    • US6152898A
    • 2000-11-28
    • US303034
    • 1999-04-30
    • James M. Olsen
    • James M. Olsen
    • A61M5/142A61M5/168A61M11/00
    • A61M5/14276A61M5/1684A61M2209/045
    • A pressure-sensitive overfill protection system for a refillable drug delivery device includes a collapsible link which, in a preferred embodiment, comprises an aneroid having an internal volume of gas at a reference pressure. The collapsible link, in its expanded state, supports on inlet valve in an open position to permit the ingress of new drug fluid into a bellows reservoir. The external surface of the aneroid is exposed to the bellows pressure. When the bellows pressure exceeds the reference pressure, the aneroid collapses and permits the inlet valve to move to a closed position under a biasing force provided by a spring. Further flow of new drug fluid into the drug delivery device is thereby prevented. Moreover, the closure of the valve provides a large increase in pressure is experienced in the refill device and may therefore be sensed by a clinician. Because the overfill protection system is pressure sensitive, it may be used with different sized bellows without modification.
    • 用于可再填充药物递送装置的压敏式过充保护系统包括可折叠连杆,在可取的实施例中,该可折叠连杆包括在参考压力下具有内部体积气体的无液体。 处于其膨胀状态的可折叠连杆支撑入口阀处于打开位置,以允许将新药物流入波纹管储存器。 空气的外表面暴露于波纹管压力。 当波纹管压力超过参考压力时,无弹性片塌陷并允许入口阀在由弹簧提供的偏压力下移动到关闭位置。 从而防止了新的药物流体进入药物输送装置的进一步流动。 此外,阀的关闭提供了在补充装置中经历的压力的大的增加,并且因此可能由临床医生感测到。 因为过充保护系统是压敏的,所以它可以与不同大小的波纹管一起使用,无需修改。