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    Medical injector with ratcheting plunger
    2.
    发明授权
    Medical injector with ratcheting plunger 有权
    带棘轮柱塞的医用注射器

    公开(公告)号：US08920384B2

    公开(公告)日：2014-12-30

    申请号：US13064315

    申请日：2011-03-17

    申请人： Richard Cronenberg ,  Haiming Wu

    发明人： Richard Cronenberg ,  Haiming Wu

    IPC分类号： A61M5/00 ,  A61M5/315 ,  A61M5/31

    CPC分类号： A61M5/3158 ,  A61M5/31541 ,  A61M5/31555 ,  A61M5/31576 ,  A61M5/31581 ,  A61M5/31595 ,  A61M2005/3125 ,  A61M2005/3126 ,  A61M2205/583 ,  A61M2205/584

    摘要： A medical injector has a body with a displaceable plunger. The plunger includes a plurality of spaced-apart ratchet teeth disposed along the length thereof. At least one indexer is provided to engage the plunger, wherein the indexer is configured to allow the plunger to displace distally toward a distal end of the body but not proximally toward a proximal end of the body. The medical injector also includes an actuator having an engagement portion formed to engage one or more of the ratchet teeth. The actuator is displaceable to a ready state, the engagement portion being displaced proximally relative to the plunger with the actuator being displaced to the ready state. The indexer prevents proximal movement of the plunger, thereby allowing the engagement portion to bypass one or more of the ratchet teeth with the actuator being displaced to the ready state. In addition, the actuator is displaceable from the ready state to cause actuation of the medical injector. The displacement from the ready state causes distal displacement of the engagement portion with the engagement portion engaging one or more of the ratchet teeth and causing distal displacement of the plunger with the engagement portion.

    摘要翻译： 医用注射器具有带有位移柱塞的主体。 柱塞包括沿其长度设置的多个间隔开的棘轮齿。 提供至少一个分度器以接合柱塞，其中分度器构造成允许柱塞朝向身体的远端远端移动，而不向近侧朝向身体的近端移位。 医疗注射器还包括具有形成为接合一个或多个棘齿的接合部的致动器。 致动器可移动到就绪状态，接合部分相对于柱塞向近侧位移，致动器被移位到就绪状态。 分度器防止柱塞的近端运动，从而允许接合部分绕过一个或多个棘轮齿，致动器被移动到就绪状态。 此外，致动器可从就绪状态移位以引起医用注射器的致动。 从就绪状态的位移导致接合部分的远端位移，其中接合部分接合一个或多个棘齿，并引起柱塞与接合部分的远端位移。

    Medical injector with ratcheting plunger
    3.
    发明申请
    Medical injector with ratcheting plunger 有权
    带棘轮柱塞的医用注射器

    公开(公告)号：US20110172640A1

    公开(公告)日：2011-07-14

    申请号：US13064315

    申请日：2011-03-17

    申请人： Richard Cronenberg ,  Haiming Wu

    发明人： Richard Cronenberg ,  Haiming Wu

    IPC分类号： A61M5/315

    CPC分类号： A61M5/3158 ,  A61M5/31541 ,  A61M5/31555 ,  A61M5/31576 ,  A61M5/31581 ,  A61M5/31595 ,  A61M2005/3125 ,  A61M2005/3126 ,  A61M2205/583 ,  A61M2205/584

    摘要： A medical injector has a body with a displaceable plunger. The plunger includes a plurality of spaced-apart ratchet teeth disposed along the length thereof. At least one indexer is provided to engage the plunger, wherein the indexer is configured to allow the plunger to displace distally toward a distal end of the body but not proximally toward a proximal end of the body. The medical injector also includes an actuator having an engagement portion formed to engage one or more of the ratchet teeth. The actuator is displaceable to a ready state, the engagement portion being displaced proximally relative to the plunger with the actuator being displaced to the ready state. The indexer prevents proximal movement of the plunger, thereby allowing the engagement portion to bypass one or more of the ratchet teeth with the actuator being displaced to the ready state. In addition, the actuator is displaceable from the ready state to cause actuation of the medical injector. The displacement from the ready state causes distal displacement of the engagement portion with the engagement portion engaging one or more of the ratchet teeth and causing distal displacement of the plunger with the engagement portion.

    摘要翻译： 医用注射器具有带有位移柱塞的主体。 柱塞包括沿其长度设置的多个间隔开的棘轮齿。 提供至少一个分度器以接合柱塞，其中分度器构造成允许柱塞朝向身体的远端远端移动，而不向近侧朝向身体的近端移位。 医疗注射器还包括具有形成为接合一个或多个棘齿的接合部的致动器。 致动器可移动到就绪状态，接合部分相对于柱塞向近侧位移，致动器被移位到就绪状态。 分度器防止柱塞的近端运动，从而允许接合部分绕过一个或多个棘轮齿，致动器被移动到就绪状态。 此外，致动器可从就绪状态移位以引起医用注射器的致动。 从就绪状态的位移导致接合部分的远端位移，其中接合部分接合一个或多个棘齿，并引起柱塞与接合部分的远端位移。

    INJECTION PEN WITH DIAL BACK AND LAST DOSE CONTROL
    6.
    发明申请
    INJECTION PEN WITH DIAL BACK AND LAST DOSE CONTROL 有权
    注射笔与拨号和最后的剂量控制

    公开(公告)号：US20120283647A1

    公开(公告)日：2012-11-08

    申请号：US13261300

    申请日：2010-11-30

    申请人： Richard Cronenberg ,  Michael Quinn ,  Haiming Wu

    发明人： Richard Cronenberg ,  Michael Quinn ,  Haiming Wu

    IPC分类号： A61M5/31

    CPC分类号： A61M5/31548 ,  A61M5/24 ,  A61M5/2466 ,  A61M5/31535 ,  A61M5/31541 ,  A61M5/31543 ,  A61M5/31551 ,  A61M5/3156 ,  A61M5/31563 ,  A61M5/3157 ,  A61M5/31573 ,  A61M5/31575 ,  A61M5/31585 ,  A61M5/31595 ,  A61M5/3202 ,  A61M5/347 ,  A61M2005/2407 ,  A61M2005/2488 ,  A61M2005/2492 ,  A61M2205/581

    摘要： A medication injection pen is provided comprising a housing (218), for housing a dose set knob (220), a leadscrew (226), a driver (224), a setback member (222), and a dose stop member (228). The dose set knob (220) is rotatable with respect to said housing (218) to set a desired injection dose, and comprises at least one internal thread (291). The leadscrew (226) includes a thread element by which it is advanceable in a first direction via a corresponding thread engagement, said first direction being that which expels medication from a cartridge (36). The driver (224) is rotationally fixed to said leadscrew (226) for preventing relative rotation therebetween, said driver (224) being rotatable in a first direction to rotate and advance said leadscrew (226) in said first direction. The setback member (222) is rotationally fixed to said driver (224) for preventing relative rotation therebetween.

    摘要翻译： 提供了一种药物注射笔，其包括用于容纳剂量设定旋钮（220），丝杠（226），驱动器（224），挫折部件（222）和剂量停止部件（228）的壳体（218） 。 剂量设定旋钮（220）可相对于所述壳体（218）旋转以设定期望的喷射剂量，并且包括至少一个内螺纹（291）。 丝杠（226）包括螺纹元件，通过该螺纹元件可以通过相应的螺纹接合在第一方向前进，所述第一方向是从药筒（36）排出药物的螺纹元件。 驱动器（224）旋转地固定到所述丝杠（226）上以防止它们之间的相对旋转，所述驱动器（224）可沿第一方向旋转并使所述丝杠（226）沿所述第一方向前进。 遏制构件（222）旋转地固定到所述驱动器（224），以防止它们之间的相对旋转。