| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Tracheostomy tube cannula, reusable | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Intermittent urethral drainage catheter, antimicrobial | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Temperature-monitoring indwelling urethral drainage catheter | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Flexible endotherapy cannula, reusable | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Flexible endotherapy cannula, single-use | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Rigid endotherapy cannula, reusable | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmic irrigation/aspiration cannula, single-use | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Vertebral bone biopsy procedure kit | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Catheter mount, reusable | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Suprapubic cannula/trocar, reusable | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Negative-pressure wound therapy system canister | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Negative-pressure wound therapy system drape | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Endotracheal secretion monitoring system | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Pipetting system | Is a | True | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Sinus irrigation catheter | Is a | True | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Urethral/ureteral catheter connector, non-sterile | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Gastric calibration tube, sterile | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Universal foot-controlled ultrasonic surgical system conducting unit, reusable | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Universal hand-controlled ultrasonic surgical system conducting unit, reusable | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Negative-pressure wound therapy tubing set | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Single-administration urethral drainage catheter | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Ultrasonic lithotripsy system probe, reusable | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Arthroscopic access cannula kit | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Pleuroperitoneal shunt | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Gastrostomy aspiration system stomach tube | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Gastrostomy aspiration system gravity set | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Hypodermic needle, single-use, non-sterile | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Hypodermic needle, single-use, sterile | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Vitrectomy system micro-cutting unit | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Interventional radiology percutaneous-access procedure kit | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Ultrasonic/electromagnetic-guided needle kit | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Ureteropelvic filter catheter | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Ultrasonic lithotripsy system probe, single-use | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Lice vacuuming replacement kit | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Negative-pressure wound therapy system pump, mechanical | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Aspiration nerve-locating probe | Is a | True | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Cervical aspiration catheter | Is a | True | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Fetal bladder shunt | Is a | False | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Pleural drainage valve | Is a | True | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Paranasal sinus irrigation/aspiration cannula | Is a | True | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Tracheostomy tube cannula | Is a | True | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Rigid endotherapy cannula | Is a | True | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Flexible endotherapy cannula | Is a | True | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  | 
| Sclerotherapy dual injection and aspiration catheter | Is a | True | Body aspiration/drainage device | Inferred relationship | Existential restriction modifier |  |