| 摘要 |
A dosage control syringe (10) includes a barrel (12), a plunger (14), an adjustable lock member (30) supported along a guide, such as a track (28), which is disposed along or outside an outer wall (12b) of the syringe barrel (12), and a stop member (38) coupled to the plunger (14) or the lock member (30). The stop member (38) is generally aligned between the adjustable lock member (30) and a portion of the plunger (14) so as to limit or preclude further movement of the plunger (14) upon engagement of the stop member (38) with both the lock member (30) and the plunger (14). The plunger (14) is stopped by the lock member (30), via the stop member (38), when the plunger (14) has traveled a predetermined distance set by the lock member (30), the distance corresponding to a desired dosage of fluid from the syringe. |
