Systems, devices and methods are described for mounting medical equipment on IV poles, bed rails and other supporting structures in medical facilities including operating rooms and critical care sections. A system including a mounting hanger and corresponding equipment housing is disclosed that allows quick mounting and dismounting of equipment from a supporting structure. The novel structural design of mounting hanger including a symmetrical t-slot feature and a plunger lock allows a piece of equipment to be mounted on a supporting structure in multiple orientations as per the requirement which allows a user to optimize the placement of equipment in the medical environment.