US Patent 8678229 Protective sleeve system for vials

A protective sleeve system featuring a housing having an inner cavity adapted to hold a vial. The top of the housing is at an angle with respect to the side wall forming a crater. An aperture is disposed at the narrowest part of the crater providing access to the inner cavity of the housing. Two windows are disposed in the side wall of the housing and positioned opposite each other. A drainage hole is disposed in the bottom surface of the housing and is fluidly connected to the inner cavity of the housing.