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    Injection-assisting probe for medical injector assembly
    6.
    发明授权
    Injection-assisting probe for medical injector assembly 有权
    用于医用注射器组件的注射辅助探针

    公开(公告)号：US06309371B1

    公开(公告)日：2001-10-30

    申请号：US09359790

    申请日：1999-07-26

    申请人： David M. Deboer ,  Peter L. Sadowski ,  Paul R. Lesch, Jr. ,  Claude L. Berman ,  Lucio Giambattista

    发明人： David M. Deboer ,  Peter L. Sadowski ,  Paul R. Lesch, Jr. ,  Claude L. Berman ,  Lucio Giambattista

    IPC分类号： A61M530

    CPC分类号： A61M5/30 ,  A61M5/3007 ,  A61M5/3232

    摘要： A probe and nozzle assembly for reducing the pressure at which a needleless injector must deliver medicament for proper delivery are disclosed. In one embodiment of the probe, the probe is retractably located within an injector nozzle assembly. Upon activation of the energy source a portion of the probe extends past the nozzle assembly to deliver the medicament through a discharge channel. After activation the probe retracts back into the nozzle assembly. In another embodiment, the probe is fixed to the end of the nozzle assembly. In both embodiments the ratio of discharge channel length to diameter is greater than 6/1. The present invention also relates to nozzle assemblies with a discharge channel length to diameter ratio greater than 6/1.

    摘要翻译： 公开了一种用于降低无针注射器必须输送药物以适当递送的压力的探针和喷嘴组件。 在探针的一个实施例中，探针可缩回地位于注射器喷嘴组件内。 在激活能量源时，探针的一部分延伸穿过喷嘴组件以将药物输送通过排放通道。 激活后，探头缩回到喷嘴组件中。 在另一个实施例中，探针固定到喷嘴组件的端部。 在两个实施例中，排出通道长度与直径的比率大于6/1。 本发明还涉及排气通道长径比大于6/1的喷嘴组件。

    Needle assisted jet injector
    7.
    发明授权
    Needle assisted jet injector 有权
    针辅助喷射器

    公开(公告)号：US06565553B2

    公开(公告)日：2003-05-20

    申请号：US10062652

    申请日：2002-01-31

    申请人： Peter L. Sadowski ,  David M. DeBoer ,  Claude L. Berman ,  Paul R. Lesch, Jr.

    发明人： Peter L. Sadowski ,  David M. DeBoer ,  Claude L. Berman ,  Paul R. Lesch, Jr.

    IPC分类号： A61M3100

    CPC分类号： A61M5/326 ,  A61M5/002 ,  A61M5/20 ,  A61M5/24 ,  A61M5/2425 ,  A61M5/2466 ,  A61M5/282 ,  A61M5/288 ,  A61M5/30 ,  A61M5/3202 ,  A61M5/3232 ,  A61M5/3243 ,  A61M5/3286 ,  A61M5/349 ,  A61M2005/3247 ,  A61M2205/583

    摘要： The invention relates to methods and devices for delivering medicament by jet injection to an injection site in a patient. The method includes inserting a needle into an insertion point, wherein the needle has a length of less than 5 mm and is operatively associated with an orifice in a nozzle assembly in fluid communication with an ampule chamber containing the medicament. The needle extends less than about 5 mm from the nozzle assembly orifice when the medicament is expelled. Next, a force generating mechanism is activated, and a pressure wall member that is operatively associated with the force generating member moves in response to the activation of the force generating mechanism at a speed sufficient to jet inject the medicament from the ampule chamber through the orifice and needle under a pressure of less than about 4000 psi to deliver a substantial portion of the medicament through the needle and past the insertion point to the injection site. The needle tip maybe part of a retractable needle of a jet injection device, or is part of a fixed needle of a jet injection device.

    摘要翻译： 本发明涉及通过射流注射将药物输送到患者的注射部位的方法和装置。 该方法包括将针插入插入点，其中针具有小于5mm的长度并且与喷嘴组件中的孔口可操作地相关联，该喷嘴组件与容纳药物的安瓿室流体连通。 当药物被排出时，针从喷嘴组件孔口延伸小于约5mm。 接下来，启动力产生机构，并且与力产生构件可操作地相关联的压力壁构件响应于力产生机构的激活而移动，其速度足以喷射从安瓿室喷射药物通过孔 和针在小于约4000psi的压力下，以将大部分药物通过针输送并穿过插入点至注射部位。 针尖可以是喷射装置的可缩回针的​​一部分，或者是喷射装置的固定针的一部分。

    Single use disposable jet injector
    10.
    发明授权
    Single use disposable jet injector 有权
    单用一次性喷射器

    公开(公告)号：US06682504B2

    公开(公告)日：2004-01-27

    申请号：US09813889

    申请日：2001-03-22

    申请人： Sheldon J. Nelson ,  Kenneth L. Adam ,  Claude L. Berman ,  Peter L. Sadowski ,  Paul R. Lesch, Jr.

    发明人： Sheldon J. Nelson ,  Kenneth L. Adam ,  Claude L. Berman ,  Peter L. Sadowski ,  Paul R. Lesch, Jr.

    IPC分类号： A61M530

    CPC分类号： A61M5/30 ,  A61M5/24 ,  A61M5/2459 ,  A61M5/286 ,  A61M5/46 ,  A61M5/5086 ,  A61M2005/31516 ,  A61M2205/3368 ,  A61M2205/6081 ,  Y10S977/778

    摘要： A jet injector having cartridge and power pack assemblies is disclosed. In one embodiment, the cartridge assembly includes a tube containing the medicament with a plunger at one end and a stopper at the other end. The plunger is movable within the tube lumen to force the stopper against a needle, thereby creating a fluid pathway through the stopper. In another embodiment, only the plunger is movable within the tube lumen and the stopper, which can be integral to the rest of the cartridge assembly or a separate component, already has a pathway for ejection of the medicament. The present invention also relates to an energy mechanism for the power pack assembly that is a gas spring containing a charging material existing in liquid and gaseous phase equilibrium within the gas spring to maintain a substantially constant pressure prior to activation.

    摘要翻译： 公开了一种具有盒和动力组件的喷射器。 在一个实施例中，盒组件包括容纳药物的管，其一端具有柱塞，另一端具有止动件。 柱塞可在管腔内移动以迫使塞子抵靠针头，从而产生通过塞子的流体通路。 在另一个实施例中，只有柱塞可在管腔内移动，并且止动器可以与盒组件的其余部分或单独的部件成一体，已经具有用于喷射药物的路径。 本发明还涉及一种用于动力单元组件的能量机构，其是气体弹簧，其包含在气体弹簧内存在液体和气相平衡的充电材料，以在激活之前保持基本恒定的压力。