| 摘要 |
An anesthesia device comprising, a syringe having a barrel defining a chamber, a hollow needle at a distal end of the syringe, and a plunger for pumping fluid from the chamber through the needle. The device has a holding member having a wall with an inner diameter slightly larger than the outer diameter of the syringe barrel, an open proximal end, and an opening at a distal end of the holding member, with the wall defining a cavity to receive the syringe barrel. The device has an elongated cannula having a lumen, and a plurality of apertures in a distal portion of the cannula communicating with the lumen. The device has a hollow adapter secured to a proximal end of the cannula. The adapter receives a distal portion of the syringe with the needle received in the cannula lumen, and the holding member receives the syringe and attached cannula with the syringe barrel received in the holding member cavity, and with the cannula extending distally from the holding member opening. Alternatively, the holding member receives the syringe while the cannula is unattached to the syringe with the syringe barrel received in the holding member cavity, and with the syringe needle extending distally from the holding member opening.
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