| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Rigid introducer | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Intravascular microflow catheter | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Cardiac catheterization kit | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Varicose vein lasing procedure kit | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Intrauterine device, drug-eluting | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Intrauterine device, metal-covered | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Non-vascular guidewire | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Endotherapy stent-placement system | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Anesthesia conduction catheterization kit | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Femoral artery clip-closure kit | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Intraocular lens-insertion cartridge | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Keratome blade, reusable | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Keratome blade, reprocessed | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Keratome blade, single-use | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Orbital sphere implant introducer | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Tissue extraction bag introducer | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Cardiovascular device introducer, non-steerable | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Cardiovascular device introducer, steerable | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Keratome, battery-powered | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Keratome, line-powered | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Keratome, water jet | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Cardiac ablation system applicator introducer/sizer | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Cardiac ablation system oblique introducer | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Catheter tunneller, single-use | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Venous adhesive occlusion system | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Laryngeal airway introducer | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Endotracheal tube stabilization rod | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Ossicular prosthesis introducer handpiece | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Ossicular prosthesis introducer tip | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Insulin infusion cannula introducer | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Capsular tension ring inserter | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Penile prosthesis implantation kit | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Penile prosthesis implantation instrument | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Pacing/defibrillation lead tunneler | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Breast implant delivery funnel | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Endotracheal tube introducer, reusable | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Rigid endoscope sheath | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Breast implant fill tube plug introducer | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Catheter-introduction trocar | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Endotherapy overtube, single-use | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Catheter-introduction needle | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Endotracheal tube introducer, single-use | Is a | False | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Catheter introducer | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Cochlear electrode array introducer | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Nasal implant introducer | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Tracheoesophageal device introducer | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Video capsule endoscopy system capsule introducer | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Urethral catheter introduction sheath | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Endotracheal tube introducer | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Vitreous body prosthesis inserter | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Epicardial pacing lead inserter | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  | 
| Spinal introduction needle | Is a | True | Introducer | Inferred relationship | Existential restriction modifier |  |