An important source of vascularized organs and tissues for transplantation are heparinized donor organs ( HDN ) . The constantly growing number of downloads organ and the potential ease with which you can obtain from HDN marrow cells necessitated the need to develop effective methods for retrieving and securing them KKM , in terms of their use for transplantation . Up to now, the method of collecting bone marrow from organ donors who did not receive anticoagulant before harvesting bone marrow , were time-consuming, technically complicated and what that entails expensive.