10 medical apparatus and instruments for organ perfusion and reperfusion; medical devices for preserving human organs awaiting transplantation; portable medical devices for preserving human organs awaiting transplantation; medical devices for assessing viability of human organs awaiting transplantation; portable medical devices for assessing viability of human organs awaiting transplantation; medical devices for resuscitating human organs for organ transplantation; portable medical devices for resuscitating human organs for organ transplantation; medical apparatus and instruments for use in organ transplant; medical apparatus and instruments for resuscitation, preservation, and assessment of explanted organs; medical apparatus and instruments for resuscitation, preservation, and assessment of explanted organs, namely, hearts, lungs, livers and kidneys; heart monitors; medical ventilators; medical respirators for artificial respiration; respirators in the nature of apparatus for artificial respiration; respirators for artificial respiration; resuscitators; magnetic connectors for use in artificial heart, lung, liver, and kidney support and use with medical respirators for medical purposes; pumps for medical purposes, namely, blood pump system for use in artificial heart, lung, liver, and kidney support; pumps for medical purposes, namely, pumps for controllably circulating fluids and solutions through explanted organs, and pumps for use in perfusion circuits; perfusion pumps in the nature of a blood pump for use in explanted organs in the nature of hearts, lungs, livers, and kidneys; medical apparatus in the nature of valves for pumps used in the field of organ perfusion, reperfusion, preservation and transplantation; surgical and medical apparatus and instruments for assessment and transplant of organs; surgical and medical apparatus and instruments for perfusion and reperfusion of organs with fluid for the purpose of preservation, maintenance, assessment and resuscitation; portable organ preservation and transportation systems comprising an organ chamber in the nature of a medical device for storage, preservation, and perfusion of organs, perfusion circuit in the nature of medical apparatus for perfusion, and medical apparatus for organ temperature control, blood oxygenation, and blood flow; organ chambers in the nature of a medical device for storage, preservation, and perfusion of organs and perfusion circuits in the nature of medical apparatus for perfusion for use in portable organ preservation systems