| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Eustachian tube prosthesis | Is a | False | Tube | Inferred relationship | Some |  | 
| Test tube rack (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Cardiopulmonary stress exercise monitoring system | Is a | False | Tube | Inferred relationship | Some |  | 
| Cardiac embolectomy/thrombectomy suction system | Is a | False | Tube | Inferred relationship | Some |  | 
| Anaesthesia breathing tube holder | Is a | False | Tube | Inferred relationship | Some |  | 
| Nasogastric tube holder | Is a | False | Tube | Inferred relationship | Some |  | 
| Endotracheal tube holder | Is a | False | Tube | Inferred relationship | Some |  | 
| Tracheostomy tube holder | Is a | False | Tube | Inferred relationship | Some |  | 
| Ventilator breathing tube holder | Is a | False | Tube | Inferred relationship | Some |  | 
| Tracheostomy tube speech valve (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Hemodialysis system dialysate pyrogen-filtration set | Is a | False | Tube | Inferred relationship | Some |  | 
| Gastric band access port kit | Is a | False | Tube | Inferred relationship | Some |  | 
| Gastric band repair kit | Is a | False | Tube | Inferred relationship | Some |  | 
| Suction system filter, plume particulate (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Penrose drain, silicone (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Pneumatic trabeculoplasty system control unit (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Catheter mount, single-use | Is a | False | Tube | Inferred relationship | Some |  | 
| Mediastinal drain, antimicrobial (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Liver biopsy procedure kit | Is a | False | Tube | Inferred relationship | Some |  | 
| Surgical power tool irrigation-control device | Is a | False | Tube | Inferred relationship | Some |  | 
| Mediastinal drain (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Airway tube forceps, single-use | Is a | False | Tube | Inferred relationship | Some |  | 
| Suction cannula, single-use | Is a | False | Tube | Inferred relationship | Some |  | 
| Surgical suction system | Is a | False | Tube | Inferred relationship | Some |  | 
| Vitrectomy fluid/gas handling instrument (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Abortion suction system collection bottle (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Negative-pressure wound therapy system dressing set | Is a | False | Tube | Inferred relationship | Some |  | 
| Manual wound suction system (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Intermittent venous compression system pump | Is a | False | Tube | Inferred relationship | Some |  | 
| Sequential venous compression system pump | Is a | False | Tube | Inferred relationship | Some |  | 
| Suction cannula, reusable | Is a | False | Tube | Inferred relationship | Some |  | 
| Blood pressure transducer set | Is a | False | Tube | Inferred relationship | Some |  | 
| Closed-wound drainage reservoir suction bulb (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Negative-pressure wound therapy system, line-powered (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Radiation blood/fluid warmer irrigation set | Is a | False | Tube | Inferred relationship | Some |  | 
| Tracheostomy tube obturator (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Ureteral catheter holder (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Bound solute dialysis system pump/monitor | Is a | False | Tube | Inferred relationship | Some |  | 
| Bound solute dialysis system component set | Is a | False | Tube | Inferred relationship | Some |  | 
| Bound solute dialysis system | Is a | False | Tube | Inferred relationship | Some |  | 
| Pleural drainage system fluid collector (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Blood collection/fat content reduction device (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Intravascular heating/cooling system start kit | Is a | False | Tube | Inferred relationship | Some |  | 
| Vertebral bone biopsy procedure kit | Is a | False | Tube | Inferred relationship | Some |  | 
| Catheter mount, reusable | Is a | False | Tube | Inferred relationship | Some |  | 
| Nasal pancreatic drainage set | Is a | False | Tube | Inferred relationship | Some |  | 
| Olfactometry system (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Elastomeric infusion pump kit | Is a | False | Tube | Inferred relationship | Some |  | 
| Extremity-oxygenation hyperbaric chamber, powered (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Extremity-oxygenation hyperbaric chamber, non-powered | Is a | False | Tube | Inferred relationship | Some |  | 
| Penile pressure measurement kit | Is a | False | Tube | Inferred relationship | Some |  | 
| Cardioplegia cannula (physical object) | Is a | True | Tube | Inferred relationship | Some |  | 
| Portable sequential venous compression system (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Negative-pressure wound therapy system, battery-powered, reusable | Is a | False | Tube | Inferred relationship | Some |  | 
| Penrose drain, Hevea-latex (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Automatic pneumatic pulmonary resuscitator, single-use | Is a | False | Tube | Inferred relationship | Some |  | 
| Apheresis kit | Is a | False | Tube | Inferred relationship | Some |  | 
| Hemodialysis treatment kit | Is a | False | Tube | Inferred relationship | Some |  | 
| Haemodialysis system, institutional | Is a | False | Tube | Inferred relationship | Some |  | 
| Haemodialysis system, institutional/home-use | Is a | False | Tube | Inferred relationship | Some |  | 
| Negative-pressure wound therapy system, battery-powered, single-use | Is a | False | Tube | Inferred relationship | Some |  | 
| Airborne device disinfectant diffuser (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Paragastric bladder tubing cap kit | Is a | False | Tube | Inferred relationship | Some |  | 
| Paragastric bladder access port kit | Is a | False | Tube | Inferred relationship | Some |  | 
| Breathing circuit tube (physical object) | Is a | True | Tube | Inferred relationship | Some |  | 
| Bronchoscopic aspiration tube, flexible (physical object) | Is a | True | Tube | Inferred relationship | Some |  | 
| Orthodontic tube | Is a | True | Tube | Inferred relationship | Some |  | 
| Laryngectomy tube (physical object) | Is a | False | Tube | Inferred relationship | Some |  | 
| Tympanostomy tube | Is a | False | Tube | Inferred relationship | Some |  | 
| Tympanostomy tube, semi-permeable membrane | Is a | True | Tube | Inferred relationship | Some |  | 
| X-ray system tube | Is a | True | Tube | Inferred relationship | Some |  | 
| Capillary blood collection tube, no-additive (physical object) | Is a | True | Tube | Inferred relationship | Some |  | 
| Bronchoscopic aspiration tube, rigid (physical object) | Is a | True | Tube | Inferred relationship | Some |  | 
| Bronchoscopy tube | Is a | True | Tube | Inferred relationship | Some |  | 
| Surgical plume evacuation system tube | Is a | True | Tube | Inferred relationship | Some |  | 
| Transcutaneous air-conduction hearing aid tube | Is a | True | Tube | Inferred relationship | Some |  | 
| Assisted reproduction centrifuge tube | Is a | False | Tube | Inferred relationship | Some |  | 
| Assisted reproduction cryotube | Is a | True | Tube | Inferred relationship | Some |  | 
| Intra-abdominal pressure measurement set, mechanical | Is a | False | Tube | Inferred relationship | Some |  | 
| Burette intravenous administration set | Is a | False | Tube | Inferred relationship | Some |  | 
| Heat-exchanging intravenous administration set | Is a | False | Tube | Inferred relationship | Some |  | 
| Non-absorbing intravenous administration set | Is a | False | Tube | Inferred relationship | Some |  | 
| Noncoring needle intravenous administration set | Is a | False | Tube | Inferred relationship | Some |  | 
| Electric infusion pump administration set | Is a | False | Tube | Inferred relationship | Some |  | 
| In-line arterial blood sampling set | Is a | False | Tube | Inferred relationship | Some |  | 
| Patient-controlled analgesia electric infusion pump administration set | Is a | False | Tube | Inferred relationship | Some |  | 
| Negative-pressure manometer | Is a | False | Tube | Inferred relationship | Some |  | 
| Percutaneous medicine administration kit, non-medicated, single-use | Is a | False | Tube | Inferred relationship | Some |  | 
| Pleural catheter | Is a | True | Tube | Inferred relationship | Some |  | 
| Pleural/peritoneal catheter insertion set | Is a | False | Tube | Inferred relationship | Some |  | 
| Mechanical infusion pump administration set | Is a | False | Tube | Inferred relationship | Some |  | 
| Universal tube holder, sterile | Is a | False | Tube | Inferred relationship | Some |  | 
| Basic crimper | Is a | False | Tube | Inferred relationship | Some |  | 
| Low-pressure tubing connector | Is a | False | Tube | Inferred relationship | Some |  | 
| Basic roller pump | Is a | False | Tube | Inferred relationship | Some |  | 
| Blood centrifugation system containment kit | Is a | False | Tube | Inferred relationship | Some |  | 
| Cardiac ablation system irrigation tubing set | Is a | False | Tube | Inferred relationship | Some |  | 
| Centrifuge bucket/tube holder | Is a | False | Tube | Inferred relationship | Some |  | 
| Centrifuge bucket/tube holder adaptor | Is a | False | Tube | Inferred relationship | Some |  | 
| Colonic irrigation nozzle, non-sterile, single-use | Is a | False | Tube | Inferred relationship | Some |  | 
| Colonic lavage unit | Is a | False | Tube | Inferred relationship | Some |  |