| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Biliary T-tube | Is a | True | T-tube, device | Inferred relationship | Existential restriction modifier |  | 
| Insertion of T tube into pancreatic duct | Direct device | True | T-tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of bile duct T-tube | Direct device | False | T-tube, device | Inferred relationship | Existential restriction modifier |  | 
| Renewal of bile duct T-tube | Direct device | False | T-tube, device | Inferred relationship | Existential restriction modifier |  | 
| Repositioning of bile duct T-tube | Direct device | False | T-tube, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of T-tube from bile duct | Direct device | False | T-tube, device | Inferred relationship | Existential restriction modifier |  | 
| Reinsertion of transhepatic T-tube | Direct device | False | T-tube, device | Inferred relationship | Existential restriction modifier |  | 
| Myringotomy and insertion of T tube | Direct device | False | T-tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous choledochoscopy via T-tube track | Using access device | False | T-tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| T-tube clamping | Indirect device | False | T-tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| T-tube maintenance | Direct device | False | T-tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Myringotomy and insertion of T tube | Direct device | False | T-tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| T-tube maintenance | Direct device | True | T-tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| T-tube clamping | Indirect device | True | T-tube, device | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous choledochoscopy via T-tube track | Using access device | True | T-tube, device | Inferred relationship | Existential restriction modifier | 1 |