| 摘要 |
An apparatus for holding a syringe and injecting fluid from the syringe. The apparatus includes a barrel having a bore extending therethrough for receiving a body portion of the syringe, a drive spring, a drive mechanism movable under the influence of the drive spring to advance the syringe from a retracted position within the barrel to an advanced position wherein a needle portion of the syringe extends outwardly of the barrel, and to compress a plunger portion of the syringe relative to the body portion of the syringe to inject the fluid through the needle portion, and a retraction plunger movable within the drive sled between an advanced position and a retracted position, to permit the needle of the syringe to retract back into the housing after the injection is complete.
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