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公开(公告)号：US5478316A
公开(公告)日：1995-12-26
申请号：US191263
申请日：1994-02-02
CPC分类号： A61M5/2033 , F16F1/10 , A61M2005/206 , A61M2005/208 , A61M5/24 , A61M5/3204 , A61M5/326
摘要： A device for automatically injecting a material into the body is disclosed. The device includes a drive assembly and a syringe assembly which is mounted to the drive assembly. The drive assembly includes a drive rod, a driver releasably coupled to the drive rod, and a constant force spring which urges the drive rod towards the syringe assembly. The spring first urges the coupled drive rod and driver along the axis of the device, causing the skin to be penetrated by the needle of the syringe assembly. The drive rod is then decoupled from the driver. The spring continues to urge the drive rod in the axial direction, whereby the drive rod engages a piston in the syringe assembly and causes the displacement of the material therein.
摘要翻译： 公开了一种用于将材料自动注入体内的装置。 该装置包括驱动组件和安装到驱动组件上的注射器组件。 驱动组件包括驱动杆，可释放地联接到驱动杆的驱动器以及将驱动杆朝向注射器组件推动的恒力弹簧。 弹簧首先沿着装置的轴线推动联接的驱动杆和驱动器，使得皮肤被注射器组件的针穿透。 驱动杆然后与驱动器分离。 弹簧继续沿轴向推动驱动杆，由此驱动杆接合注射器组件中的活塞并引起材料在其中的移位。
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公开(公告)号：US5667495A
公开(公告)日：1997-09-16
申请号：US426519
申请日：1995-04-21
CPC分类号： A61M5/315 , A61M2005/3139 , A61M5/31505
摘要： A backstop device to prevent inadvertent withdrawal of a stopper from the open distal end of a syringe barrel. The backstop, mounted to a syringe flange, includes a pair of spaced apart plates located on either side of the flange. Both plates include respective apertures accessible through lead openings formed through the plates. The bottom aperture is formed for snug contact with the syringe barrel, while the upper aperture includes a ridge engageable with the interior of the syringe barrel adjacent the open distal end. The top aperture and ridge together present a smaller passageway than the diameter of the stopper, preventing inadvertent removal thereof. The backstop can be placed on the syringe regardless of the presence or absence of the plunger.
摘要翻译： 一种止回装置，用于防止塞子从注射器筒的敞开的远端无意中抽出。 安装在注射器法兰上的止回阀包括位于法兰两侧的一对隔开的板。 两个板包括通过穿过板形成的引线开口可接近的各个孔。 底孔被形成为与注射器筒紧密接触，而上孔包括可与注射器筒内部相邻的开口远端接合的脊。 顶部孔和脊一起形成比塞子的直径小的通道，防止其意外地移除。 无论柱塞的存在或不存在，都可以将止回阀放在注射器上。
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公开(公告)号：US06648859B2
公开(公告)日：2003-11-18
申请号：US09932043
申请日：2001-08-17
IPC分类号： A61M500
CPC分类号： A61M5/24 , A61M5/31551 , A61M5/31561 , A61M5/31585 , A61M5/31593 , A61M5/50 , A61M2005/2407 , A61M2005/2437 , A61M2005/2488 , A61M2005/2492 , A61M2205/60 , A61M2205/6036 , A61M2205/6045
摘要： This invention relates to a drug cartridge assembly for use with a reusable body assembly of a medication delivery pen. The drug cartridge is disposable and is in the form of a single integral unit having a generally tubular barrel. Medication is pre-filled into the drug cartridge and is retained therein by an elastomeric stopper or plunger. The plunger is in sliding fluid-tight engagement with a tubular wall of the barrel. A proximal end of the tubular barrel is configured for interconnecting the drug cartridge with a pen body assembly and a distal end of the tubular barrel is configured to securely but releasably engage a needle cannula assembly.
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公开(公告)号：US5250037A
公开(公告)日：1993-10-05
申请号：US992958
申请日：1992-12-18
申请人： Ralf V. Bitdinger
发明人： Ralf V. Bitdinger
CPC分类号： A61M5/288 , A61M5/3202
摘要： A hypodermic syringe has a syringe barrel with a distal end and a passage therethrough communicating with a fluid-receiving chamber in the syringe barrel. A barrier extends across the passage to isolate the fluid in the chamber. A needle cannula is mounted to a needle hub slidingly engaged at the distal end of the syringe barrel. The needle cannula includes a proximally facing point for piercing the barrier in the passage to the chamber of the syringe barrel. A needle shield is mounted to the distal end of the syringe barrel, and cam means are provided for cam-guided rotational movement between the needle shield and the syringe barrel. The cam shape causes the needle shield and the needle cannula to move proximally for initially piercing the barrier and then to move distally to enable separation of the needle shield.
摘要翻译： 皮下注射器具有注射器筒，其具有远端和与注射器筒中的流体接收室连通的通道。 屏障延伸穿过通道以隔离腔室中的流体。 针套管安装到滑动地接合在注射器筒的远端处的针座上。 针套管包括用于在通向注射器筒的腔室的通道中刺穿阻挡件的向近侧面的点。 针护罩安装到注射器筒的远端，并且提供凸轮装置用于针护罩和注射器筒之间的凸轮引导的旋转运动。 凸轮形状导致针护罩和针插管向近侧移动以最初刺穿屏障，然后向远侧移动以使针护罩分离。
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