Abstract: A method and an apparatus for applying an anesthetic that includes a receptacle having an upper end, a substantially hollow interior, a lower end having a tube or nozzle extending therefrom, and an attachment for attaching to the barrel of a syringe or vice versa. The receptacle receives a container or canister containing an endothermic gas or vapor (propellant) that rapidly absorbs heat when released to the atmosphere. A depressible actuating member or trigger propels the gas or vapor through an outlet nozzle that is oriented to project a stream of gas or vapor along a delivery axis that intersects a delivery axis of the needle, therefore, the gas or vapor can be successively delivered to an injection site with minimal repositioning of the housing.

Abstract: A medical procedure accessory components holding unit and methods of using thereof. The accessory holder is designed to hold and store one or more components or medical devices that could be used in a medical procedure, particularly medical devices, for applying an anesthetic. The accessory holder may include four (4) medical device storage or use modules: a syringe disposal device module, a dispensing tool module, a canister module, and a syringe attachment module.