Uncontrolled bleeding due to pelvic fractures contributes to trauma-related morbidity and mortality. Three main strategies that have been outlined to combat this condition which include reduction of pelvic volume that lead to tamponade-like effect, arresting haemorrhage through angioembolization of the major vessels, and stabilization of the pelvic bone with external fixation need to be initiated early. A prehospital device that allow these strategies will aid significantly in the management of the patient. At present most devices used to treat pelvic fractures in the pre-hospital setting do have its’ own advantages but also have some limitations. A characteristic ‘wish-list’ of a good pelvic and lower limb immobilization device was created and the research team from UKM takes the challenge to design and produce a device that concurs to it. A two phase development project that incorporate anthropometric, biomechanical, cadaveric and radiological study was carried out over a period of seven years. Finally, BRIMTM immobilizer, a new pelvic and lower limb immobilization device that is user friendly, tough, cost effective, radiolucent, light and reusable that answers most of the requirement of a good device was invented.