Syringe and needle for preventing inadvertent drug injection

摘要

A spinal syringe and needle for preventing the inadvertent injection of an intravenous drug spinally includes a needle engagement extension on the spinal needle defining an opening of a first diameter, a syringe engagement extension on the spinal syringe defining an opening of a second diameter, the syringe engagement extension engageable with the needle engagement extension to operatively connect the needle to the syringe. The first and second diameters are dimensioned such that a surface of the syringe engagement extension is in frictional engagement with a surface of the needle engagement extension, the first diameter is substantially the same as the diameter of an opening defined by the engagement extension of a typical syringe and the second diameter is substantially the same as the diameter of an opening defined by the engagement extension of a typical needle. A system and method for preventing the inadvertent injection of an intravenous drug spinally and a spinal drug intravenously includes a spinal needle and a spinal syringe for holding and dispensing the drug to be injected spinally, the spinal syringe operatively connectable to the spinal needle. An intravenous syringe is provided for holding and dispensing the drug to be injected intravenously, the intravenous syringe operatively connectable to the intravenous needle. The intravenous needle cannot be operatively connected to the spinal syringe and the spinal needle cannot be operatively connected with the intravenous syringe thereby preventing the inadvertent injection of the drug in each syringe through an incorrect needle.