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    • 5. 发明授权
    • Drug delivery cartridge with protective cover
    • 带防护罩的药物输送筒
    • US4850978A
    • 1989-07-25
    • US114814
    • 1987-10-29
    • Thomas E. DudarBrian D. Zdeb
    • Thomas E. DudarBrian D. Zdeb
    • A61M5/14A61M37/00A61M39/00
    • A61M5/1409
    • A cartridge 444, 644, 744 is adapted for mounting upon a receptacle 442, 642 in a parenterial fluid administration set 420 for delivering a drug or other beneficial agent to a patient. The cartridge 444, 644, 744 includes a beneficial agent-containing chamber 606 slidable from a first, pre-use position to a second, post-use position. The cartridge includes a hollow tube 496 in which the chamber 606 is at least partially mounted. At least one cannula 500 is mounted to the hollow tube and extends opposite the chamber. A protective cover or cap 530 maintains a chamber protective position that prevents inadvertent movement of the chamber that would accidentally engage the cartridge chamber with a flow path member, such as the cannula. The cover is removed in order to engage the chamber. After delivery of the agent to the patient, the cartridge is removed from the receptacle 442,642 and the cover 530 is selectively moved to a cannula protective position in which the cover 530 is securely mounted about the second, opposite end of the hollow tube, covering the cannula 500.
    • 药筒444,644,744适于安装在肠胃外流体给药组420中的容器442,642上,用于将药物或其它有益药物递送给患者。 盒444,644,744包括可从第一使用前位置向第二使用后位置滑动的有益剂容纳室606。 盒包括中空管496,其中室606至少部分地安装在其中。 至少一个插管500安装到中空管并且与腔相对延伸。 保护盖或盖530保持室保护位置,防止腔室意外地与诸如插管的流路构件接合盒室的意外移动。 盖子被移除以便接合室。 在将药剂递送到患者之后,将药筒从容器442,642中取出,并且将盖530选择性地移动到插管保护位置,在套管保护位置中,盖530围绕中空管的第二相对端牢固地安装, 套管500。
    • 10. 发明授权
    • Retractable syringe
    • 伸缩式注射器
    • US5820605A
    • 1998-10-13
    • US395551
    • 1995-02-28
    • Brian D. ZdebJerry Goldberg
    • Brian D. ZdebJerry Goldberg
    • A61M5/31A61M5/315A61M5/32A61M5/34A61M5/50A61M5/00
    • A61M5/322A61M5/3202A61M2005/3104A61M2005/31516A61M2005/3206A61M5/3213A61M5/347A61M5/502
    • A retractable syringe includes a barrel, one end of which comprises a mounting collar. A needle carrier is releasably mounted within the collar and releaseably supports a needle cartridge. A hypodermic needle is mounted within the cartridge. A sheath attaches at one end of the cartridge and at the other end of the collar. A plunger is telescoped into the barrel and includes a piston sealingly engaging the barrel. The piston includes a latch for engaging the carrier and releasing it from the collar. The piston and carrier also include an anti-remount mechanism preventing the carrier from being reengaged into the collar. To preform this, a separate tool is used to insert the carrier into the collar. The plunger further includes surfaces to displace fluid as the piston is forced toward the proximal end of the barrel to displace fluid to reduce squirt. A cap is also provided to initially seal off the proximal end of the barrel and after usage to form a seal by engaging teeth within the proximal end of the barrel.
    • 可伸缩注射器包括一个筒体,其一端包括安装套环。 针托架可释放地安装在套环内并可释放地支撑针筒。 皮下注射针安装在药筒内。 护套连接在药筒的一端并且在套环的另一端。 柱塞可伸缩到筒体中并且包括密封地接合桶的活塞。 活塞包括用于接合载体并将其从轴环释放的闩锁。 活塞和托架还包括防止托架重新接合到套环中的防重新安装机构。 为了预成型,使用单独的工具将载体插入到轴环中。 柱塞还包括当活塞被迫朝向筒的近端移动流体以减少喷射时移动流体的表面。 还提供盖以最初密封筒的近端并且在使用之后通过接合在筒的近端内的齿形成密封。