Syringe having a removable cover for use as a plunger rod in rotational engagement

摘要

A syringe assembly includes a syringe barrel defining a chamber, a stopper disposed within the chamber, and a plunger assembly. The plunger assembly includes an elongated plunger rod, a housing, and a handle portion connecting the plunger rod and housing. The plunger assembly transitions from a first position disposed about the syringe barrel, to a second position with the plunger rod engaged with the stopper. Transition of the plunger assembly includes rotational engagement of the plunger rod and stopper.

主权项

1. A syringe assembly, comprising:
a syringe barrel having a first end, a second end, and a sidewall extending therebetween having an exterior surface and an interior surface defining a chamber therein; a stopper disposed within the chamber; and a plunger assembly comprising an elongated plunger rod, a housing, and a handle portion connecting the elongated plunger rod and the housing, wherein the plunger assembly is adapted to transition from a first position in which the plunger assembly is disposed about the exterior surface of the syringe barrel, to a second position in which the plunger rod is engaged with the stopper, wherein transition of the plunger assembly from the first position to the second position comprises rotational engagement of the plunger rod with a portion of the stopper, and wherein the plunger assembly is proximally advanced over the syringe barrel prior to the rotational engagement of the plunger rod and the stopper.