| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Biventricular assist device | Is a | False | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Ventricular assist device | Is a | False | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Cardiac pacemaker, device | Is a | False | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Defibrillator, device | Is a | True | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Resuscitator, device | Is a | True | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Continuing positive airway pressure unit, device | Is a | True | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Heart-lung machine, device | Is a | False | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Respirator, device | Is a | False | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Defibrillator paddle, device | Is a | True | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Hyperbaric chamber, device | Is a | True | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Aortic pulsation balloon | Is a | False | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Insertion of intra-aortic balloon counterpulsation | Direct device | False | Life support equipment, device | Inferred relationship | Existential restriction modifier | 1 | 
| Transluminal insertion of intraventricular pump | Direct device | False | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Replacement of artificial heart | Direct device | False | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of heart assist system with replacement | Direct device | False | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Implantation of heart assist system | Direct device | False | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Diaphragm pacing device | Is a | True | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Cardiac assist implant | Is a | True | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Insertion of intra-aortic balloon counterpulsation | Direct device | False | Life support equipment, device | Inferred relationship | Existential restriction modifier | 1 | 
| Cardiopulmonary bypass circuit | Is a | True | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Centrifugal circulatory assist pump, electric | Is a | True | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Infant resuscitation cabinet | Is a | True | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| Centrifugal circulatory assist pump, manual | Is a | True | Life support equipment, device | Inferred relationship | Existential restriction modifier |  | 
| External defibrillator electrode pad | Is a | True | Life support equipment, device | Inferred relationship | Existential restriction modifier |  |