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    • 2. 发明授权
    • Syringe and locking device and method of assembling same
    • 注射器和锁定装置及其组装方法
    • US4592746A
    • 1986-06-03
    • US743126
    • 1985-06-10
    • Richard A. BurkholderRichard W. GilsonClarence L. Walker
    • Richard A. BurkholderRichard W. GilsonClarence L. Walker
    • A61M5/315
    • A61M5/315A61M5/31505
    • A device for selectively locking a syringe plunger against longitudinal movement with respect to the syringe barrel includes two interlocking device parts. Each device part has a generally flat body with a generally semi-circular inner perimeter and first and second ends. A ridge extends along the inner perimeter of each half for engaging the syringe plunger when the plunger is rotated to a predetermined angular position. Each interlocking part has mating structures at each end for mating with the other device part and has a flange for retaining the assembled locking device on the syringe barrel. The syringe and locking device are assembled by inserting the plunger in the syringe barrel and then snapping the two device parts together around the proximal end of the syringe barrel.
    • 用于选择性地锁定注射器柱塞以防止相对于注射器筒的纵向移动的装置包括两个互锁装置部件。 每个装置部分具有大致平坦的主体,其具有大致半圆形的内周边和第一和第二端。 当柱塞旋转到预定的角位置时,脊沿着每个半部的内周延伸,用于接合针筒柱塞。 每个互锁部件在每个端部具有配合结构,用于与另一个装置部件配合,并具有用于将组装的锁定装置保持在注射器筒上的凸缘。 注射器和锁定装置通过将柱塞插入注射器筒中而组装,然后将两个装置部件一起围绕注射器筒的近端卡扣。