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    Implantable drug delivery device with peristaltic pump having retracting roller
    3.
    发明授权
    Implantable drug delivery device with peristaltic pump having retracting roller 有权
    具有收缩辊的蠕动泵的可植入药物输送装置

    公开(公告)号：US06743204B2

    公开(公告)日：2004-06-01

    申请号：US09834874

    申请日：2001-04-13

    申请人： Steven R. Christenson ,  Reginald D. Robinson ,  Kenneth T. Heruth ,  James M. Haase ,  Manfred Luedi

    发明人： Steven R. Christenson ,  Reginald D. Robinson ,  Kenneth T. Heruth ,  James M. Haase ,  Manfred Luedi

    IPC分类号： A61M100

    CPC分类号： F04B43/1253 ,  A61M5/14232 ,  A61M5/14276 ,  A61M2205/0266 ,  F04B43/1276 ,  Y10T29/4924

    摘要： An implantable drug infusion device includes a pump tube for holding a liquid to be pumped. A race is configured to support the pump tube. A roller assembly is configured to compress the tube against the race at one or more points along the path, and the roller assembly includes at least one roller and a hub. A drive assembly drives the roller assembly relative to the tube along the path so as to move the liquid through the tube. A retracting roller is operably connected to the hub and/or one or more adjacent rollers to permit retraction of the roller during installation of the pump tube between the roller and the race.

    摘要翻译： 可植入药物输注装置包括用于保持要泵送的液体的泵管。 一个比赛被配置为支持泵管。 辊组件构造成在沿着路径的一个或多个点处压缩套管抵抗座圈，并且辊组件包括至少一个辊和轮毂。 驱动组件沿着路径相对于管驱动辊组件，以便使液体移动通过管。 回缩辊可操作地连接到轮毂和/或一个或多个相邻的辊子上，以允许在将泵管安装在辊子和座圈之间时缩回辊子。

    Reducing cylinder wear in a drug pump
    8.
    发明授权
    Reducing cylinder wear in a drug pump 有权
    减少药泵中的气瓶磨损

    公开(公告)号：US07798789B2

    公开(公告)日：2010-09-21

    申请号：US11749460

    申请日：2007-05-16

    申请人： James M. Haase ,  Ronald L. Mezera ,  Nicholas R. Whitehead

    发明人： James M. Haase ,  Ronald L. Mezera ,  Nicholas R. Whitehead

    IPC分类号： F04B35/04 ,  F01B31/00 ,  H02K7/06

    CPC分类号： A61M5/14216 ,  A61M5/14276 ,  A61M2205/103 ,  A61M2205/106 ,  F04B17/048

    摘要： The present invention relates to a method and related apparatus for rotating a piston of a drug pump during the pumping stroke to reduce drug pump wear. The actuator may move a piston that pumps fluid through a pumping channel. In the present invention, the armature includes one or more openings or shapes that cause the actuator, including the armature and the piston, to rotate about a longitudinal axis of the piston during the pumping stroke. Rotation of the actuator member may help to reduce wear to the actuator member and the pump itself caused by repetitive pumping motions.

    摘要翻译： 本发明涉及一种用于在泵送冲程期间旋转药泵的活塞以减少药泵磨损的方法和相关装置。 致动器可以移动通过泵送通道泵送流体的活塞。 在本发明中，电枢包括一个或多个开口或形状，其使包括电枢和活塞在内的致动器在泵送冲程期间围绕活塞的纵向轴线旋转。 致动器构件的旋转可以有助于减少由重复泵送运动引起的致动器构件和泵本身的磨损。

    AIR TOLERANT IMPLANTABLE PISTON PUMP
    9.
    发明申请
    AIR TOLERANT IMPLANTABLE PISTON PUMP 有权
    耐用可移动活塞泵

    公开(公告)号：US20100152714A1

    公开(公告)日：2010-06-17

    申请号：US12684436

    申请日：2010-01-08

    申请人： James M. Haase ,  Nicholas R. Whitehead ,  Ronald L. Mezera

    发明人： James M. Haase ,  Nicholas R. Whitehead ,  Ronald L. Mezera

    IPC分类号： A61M31/00

    CPC分类号： A61M5/14276 ,  A61M5/14216 ,  A61M5/165 ,  A61M5/36 ,  A61M2205/7518 ,  F04B17/042 ,  F04B19/006 ,  F04B35/045 ,  F04B53/008 ,  F04B53/1032

    摘要： An implantable infusion device includes a reservoir for housing an infusion medium and a drive mechanism having an inlet chamber, a piston and a piston channel. The inlet chamber is in fluid communication with the reservoir. The piston channel is in fluid communication with the inlet chamber, and has a distal end and a proximal end, the proximal end being closer to the inlet channel than the distal end. The piston is axially moveable within the piston channel to drive infusion medium out of the distal end of the piston channel. The clearance between the piston and the channel is sufficiently small to prevent undissolved gas in the inlet chamber from passing through the clearance. The inlet chamber may be sufficiently large to allow undissolved gas to accumulate without adversely affecting the performance of the infusion device.

    摘要翻译： 植入式输注装置包括用于容纳输注介质的储存器和具有入口室，活塞和活塞通道的驱动机构。 入口室与储存器流体连通。 活塞通道与入口室流体连通，并且具有远端和近端，近端比远端更靠近入口通道。 活塞在活塞通道内可轴向运动，以将输注介质驱出活塞通道的远端。 活塞和通道之间的间隙足够小，以防止入口室中的未溶解气体通过间隙。 入口室可以足够大以允许未溶解的气体积聚而不会不利地影响输注装置的性能。

    REDUCING CYLINDER WEAR IN A DRUG PUMP
    10.
    发明申请
    REDUCING CYLINDER WEAR IN A DRUG PUMP 有权
    减少气瓶在药液泵中的磨损

    公开(公告)号：US20080286132A1

    公开(公告)日：2008-11-20

    申请号：US11749460

    申请日：2007-05-16

    申请人： James M. Haase ,  Ronald L. Mezera ,  Nicholas R. Whitehead

    发明人： James M. Haase ,  Ronald L. Mezera ,  Nicholas R. Whitehead

    IPC分类号： F04B17/00 ,  A61M5/00

    CPC分类号： A61M5/14216 ,  A61M5/14276 ,  A61M2205/103 ,  A61M2205/106 ,  F04B17/048

    摘要： The present invention relates to a method and related apparatus for rotating a piston of a drug pump during the pumping stroke to reduce drug pump wear. The actuator may move a piston that pumps fluid through a pumping channel. In the present invention, the armature includes one or more openings or shapes that cause the actuator, including the armature and the piston, to rotate about a longitudinal axis of the piston during the pumping stroke. Rotation of the actuator member may help to reduce wear to the actuator member and the pump itself caused by repetitive pumping motions.

    摘要翻译： 本发明涉及一种用于在泵送冲程期间旋转药泵的活塞以减少药泵磨损的方法和相关装置。 致动器可以移动通过泵送通道泵送流体的活塞。 在本发明中，电枢包括一个或多个开口或形状，其使包括电枢和活塞在内的致动器在泵送冲程期间围绕活塞的纵向轴线旋转。 致动器构件的旋转可以有助于减少由重复泵送运动引起的致动器构件和泵本身的磨损。