| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Laryngeal airway | Is a | True | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Intubation laryngoscope | Is a | True | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Nasopharyngeal airway, reusable | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Nasopharyngeal airway, single-use | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Esophageal-obturating/tracheal airway, reusable | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Esophageal-obturating/tracheal airway, single-use | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Oropharyngeal airway, reusable | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Oropharyngeal airway, single-use | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Airway needle | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Catheter mount, single-use | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Intubation teeth protector | Is a | True | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Bronchoscopy tube | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Cricothyrotomy kit, single-use | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Esophageal-obturating airway, reusable | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Esophageal-obturating airway, single-use | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Catheter mount, reusable | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Exhaled-gas esophageal intubation detector, adult | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Exhaled-gas esophageal intubation detector, pediatric | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Suction esophageal intubation detector, adult | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Suction esophageal intubation detector, pediatric | Is a | True | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Laryngeal airway cleaning brush | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Laryngeal airway introducer | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Laryngeal airway cuff deflator | Is a | False | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| External negative-pressure airway patency collar | Is a | True | Artificial airway device | Inferred relationship | Existential restriction modifier |  | 
| Artificial airway cuff inflation tubing | Is a | True | Artificial airway device | Inferred relationship | Existential restriction modifier |  |