| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Vascular catheter | Is a | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Catheter tip, device | Is a | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Cannula, device | Is a | True | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Catheter, device | Is a | True | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Tube, device | Is a | True | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Decompression of sigmoid colon using flatus tube | Direct device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Intranasal intubation of lacrimal apparatus for tear drainage | Direct device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Intubation of intestine for decompression | Direct device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Intubation of small intestine | Direct device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Intubation | Direct device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Lacrimal apparatus intubation for dilation | Direct device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Intubation of larynx | Direct device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Insertion of Miller-Abbott tube for intestinal decompression | Direct device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Ventriculocisternal intubation | Direct device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Intubation AND aspiration | Direct device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Intubation of nasolacrimal duct with irrigation | Direct device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Intubation of lacrimal drainage structure | Direct device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Cystoscopic ureteric intubation procedure | Direct device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier | 1 | 
| Removal of thrombus from arteriovenous shunt or cannula | Indirect device | False | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier | 1 | 
| Removal of thrombus from arteriovenous shunt or cannula | Indirect device | True | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier | 1 | 
| Cystoscopic ureteric intubation procedure | Direct device | True | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier | 1 | 
| Infusion line swab | Specimen source identity | True | Cannula/tube/catheter, device | Inferred relationship | Existential restriction modifier | 1 |