Patent ID: 8622952
Filing Date: 2014-01-07
Classification: A61M

Abstract:
1. An instrument for minimizing pain during administration by injection of a liquid, such as, an anesthetic comprising a main body having a forward end, a lightpipe mounted in said body freely for vibration and projecting out of said forward end of said body, a single use tip composed of a tip sleeve removably mounted on the forward end of said main body by a first type of motion and removable from said main body by initiating a second and different type of motion, and a tip member having a shape to vibrate a defined preselected injection site on a human or animal, said tip member being removably and rigidly mountable on the lightpipe, said tip member and tip sleeve being covered by an elastic overmold to hold said tip member and tip sleeve together but in a spaced apart juxtaposition that enables said tip member to vibrate freely relative to said tip sleeve while enabling light from said lightpipe to pass through and illuminate an injection site, a vibration unit mounted in the main body and coupled to said lightpipe to impart vibrations via said lightpipe to said tip member, wherein said body includes a forwardly projecting element and said tip member defines a configuration to coact with said projecting element such that the removable demounting of the single use tip will rupture the overmold and render the single use tip unfit for further use.