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    • 6. 发明申请
    • MEDICATION CARTRIDGE PISTON
    • 药品盒活塞
    • US20090312716A1
    • 2009-12-17
    • US12307788
    • 2007-06-27
    • Ari Tao AdlerJames J. Collins, JR.Jose Colucci, JR.Jared Alden Judson
    • Ari Tao AdlerJames J. Collins, JR.Jose Colucci, JR.Jared Alden Judson
    • A61M5/315
    • A61M5/31513A61J1/065A61M5/31515A61M2005/31516
    • A medication cartridge piston of a cartridge for an injection device. In one form, the piston includes a body (32) formed of a first material and including an interior hollow with a rearward facing mouth allowing for insertion of a drive member of the injection device. The body includes a first portion and a second portion disposed rearwared of the first portion, a sealing gland (34) secured to the body and formed of a material that is less rigid than the first material, the sealing gland ringing at least an axial segment of the second portion and having at least one exterior periphery region for sealingly engaging an interior surface of the cartridge barrel, and the body first portion including a thrust surface (4S) within the interior hollow for direct abutment by the drive member, at least a portion of the thrust surface disposed forward of a forward edge of a forwardmost sealing gland exterior periphery region of the at least one exterior periphery region. This piston can be operatively pulled by the drive member in a forward direction within the cartridge barrel to dispense medication from the cartridge. In an alternate embodiment, a piston is provided which is adapted for use with different drive members of injection devices.
    • 用于注射装置的药筒的药筒活塞。 在一种形式中,活塞包括由第一材料形成并包括具有向后的嘴的内部空腔的主体(32),其允许插入注射装置的驱动构件。 本体包括第一部分和第二部分,该第一部分和第二部分设置在第一部分的后部,密封压盖(34)固定到主体并且由比第一材料刚性小的材料形成,密封压盖至少振动至少一个轴向部分 并且具有用于密封地接合盒筒的内表面的至少一个外周边区域,并且主体第一部分包括内部空心内的推力表面(4S),用于由驱动构件直接邻接,至少一个 推力表面的一部分设置在至少一个外周边区域的最前面的密封压盖外周边区域的前边缘的前方。 该活塞可以由驱动构件在筒筒内沿向前方向可操作地拉动,以从药筒分配药物。 在替代实施例中,提供适于与注射装置的不同驱动构件一起使用的活塞。
    • 10. 发明授权
    • Access assembly with ribbed seal
    • 进口组件带肋密封
    • US08292854B2
    • 2012-10-23
    • US13030266
    • 2011-02-18
    • Oivind BrockmeierJared Alden JudsonKenneth Allen Focht
    • Oivind BrockmeierJared Alden JudsonKenneth Allen Focht
    • A61M5/178
    • A61B17/3498A61B17/3421A61B2017/3464
    • A ribbed seal for use in endoscopic surgery is intended to be incorporated into a cannula assembly to limit the escape of insufflation gasses from a body cavity by forming a fluid-tight seal around an instrument inserted through the cannula assembly. The ribbed seal includes a relatively flat, disk shaped elastomeric overmold portion having a central aperture sized slightly smaller than the instrument such that the aperture must expand to accommodate the instrument. Molded together with the elastomeric overmold is an array of slender ribs disposed about the aperture. The ribs are designed to be relatively flexible under lateral loads. This allows the seal to bend easily as the surgical instrument is inserted through the aperture thereby maintaining a low insertion and glide force. On the other hand, the ribs are designed to be relatively rigid when loaded axially. This rigidity provides robust radial support for the instrument inserted through the center of the array of ribs. The seal performs a centering function for the instrument due to its combined elasticity and stiffness. Finally, the seal also allows for an instrument to be removed easily while maintaining the required atmospheric integrity.
    • 用于内窥镜手术的肋状密封件旨在并入插管组件中,以通过在插入穿过套管组件的仪器周围形成流体密封来限制吹入气体从体腔逸出。 肋状密封件包括相对平坦的盘形弹性体包覆模制部分,其具有尺寸略小于仪器的中心孔,使得孔必须膨胀以适应仪器。 与弹性体包覆模制一起模制的是围绕孔设置的细长肋条的阵列。 肋设计成在横向载荷下相对柔韧。 当外科手术器械通过孔插入时,这使得密封件容易弯曲,从而保持低插入和滑动力。 另一方面,肋被设计成在轴向加载时相对刚性。 这种刚度为通过肋阵列的中心插入的仪器提供了坚固的径向支撑。 密封件由于其组合的弹性和刚度而对仪器执行定心功能。 最后,密封件还允许在保持所需大气完整性的同时轻松移除仪器。