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    • 5. 发明授权
    • Needle assisted jet injector
    • 针辅助喷射器
    • US06565553B2
    • 2003-05-20
    • US10062652
    • 2002-01-31
    • Peter L. SadowskiDavid M. DeBoerClaude L. BermanPaul R. Lesch, Jr.
    • Peter L. SadowskiDavid M. DeBoerClaude L. BermanPaul R. Lesch, Jr.
    • A61M3100
    • A61M5/326A61M5/002A61M5/20A61M5/24A61M5/2425A61M5/2466A61M5/282A61M5/288A61M5/30A61M5/3202A61M5/3232A61M5/3243A61M5/3286A61M5/349A61M2005/3247A61M2205/583
    • 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.
    • 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。
    • 6. 发明申请
    • HAZARDOUS AGENT INJECTION SYSTEM
    • 危险代理注射系统
    • US20130030367A1
    • 2013-01-31
    • US13607659
    • 2012-09-07
    • Paul WottonPeter L. SadowskiJohn William Hayes
    • Paul WottonPeter L. SadowskiJohn William Hayes
    • A61M5/20
    • A61M5/30A61K9/0019A61K9/0087A61K31/519A61K31/568A61M5/178A61M5/2033A61M5/3202A61M5/326A61M2005/2013A61M2005/2073A61M2005/3247
    • A hazardous agent injection system including from about 0.02 ml to about 4.0 ml of methotrexate at a concentration of from about 7.5 mg/ml to about 150 mg/ml; a needle-assisted jet injector including a container configured to contain the methotrexate; a injection outlet member associated with the container; an injection-assisting needle coupled to the injection outlet member; a firing mechanism associated with the container; an energy source associated with the firing mechanism; and a trigger mechanism associated with the firing mechanism, wherein the needle-assisted jet injector is configured to eject the methotrexate from the injection outlet member such that the Cmax, Tmax and bioavailability of the needle-assisted jet injected methotrexate falls between about 80% and about 125% of the Cmax, Tmax and bioavailability of methotrexate delivered by a hand-powered syringe.
    • 一种危险剂注射系统,包括约0.02ml至约4.0ml浓度为约7.5mg / ml至约150mg / ml的甲氨蝶呤; 一种针辅助喷射喷射器,其包括容纳甲氨蝶呤的容器; 与所述容器相关联的注射出口构件; 注射辅助针,其联接到所述注射出口构件; 与容器相关联的击发机构; 与发射机构相关联的能量源; 以及与所述击发机构相关联的触发机构,其中所述针辅助喷射器被配置为从所述注射出口构件喷射所述甲氨蝶呤,使得针刺喷射的甲氨蝶呤的C max,T max和生物利用度落在约80%和 用手动注射器输送的甲氨蝶呤的Cmax,Tmax和生物利用度的约125%。