| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Needle guide, device | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Anterograde guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Retrograde guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Stereotactic guidance device | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Peripheral angioplasty balloon catheter | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Intravascular guiding catheter | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Intravascular occluding catheter | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Cardiac catheterization kit | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Rigid endoscope working guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Stone/foreign-body extraction set | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Resectoscope | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Patient positioning sensor | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Coronary artery guide catheter | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Peripheral/coronary vascular infusion catheter | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Peripheral vascular ultrasound catheter, steerable | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Peripheral vascular ultrasound catheter, non-steerable | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Bone nail dummy | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Orthopedic implant aiming/guiding block | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Fallopian tube catheterization kit | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Varicose vein lasing procedure kit | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Cutting/scoring coronary angioplasty balloon catheter | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Orthopedic implant calibration pin | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Assisted reproduction needle, reprocessed | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Bone-nailing spacer | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Infrared tissue coagulation system light guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Orthopedic implant aiming arm | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Assisted reproduction needle, single-use | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Dental implant template retention pin | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Endotherapy overtube, reusable | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Endotherapy overtube, single-use | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Biliary stone retrieval balloon catheter | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Peripheral vascular guidewire-placement catheter | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Nasal pancreatic drainage set | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Ureteral stent-placement set | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Ligament reconstruction instrument set | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Atrial cardioversion system catheter | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Femoral artery clip-closure kit | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Basic coronary angioplasty balloon catheter | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Surgical instrument sleeve, reusable | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Sinus guide catheter | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Dental guided surgery reference plate | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Imaging coronary angioplasty balloon catheter | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Carotid artery emboli protection system | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Surgical instrument sleeve, single-use | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Electromagnetic device tracking system | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Suturing guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Sternum saw blade guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Orthopedic reamer guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Dental guided surgery reference pin | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Non-implantable needle guide, single-use | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Intravascular hemodynamic monitoring system | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Intracranial vascular implant post-dilation balloon catheter | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Mobile extracorporeal gas exchange system catheter kit | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Pleural catheter insertion set | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Implantable arteriovenous fistula needle guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Sacroiliac joint transarticular fixation/arthrodesis implantation kit | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Vascular introducer kit | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Tibial resection laser guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Orthopedic prosthesis implantation instrument, single-use | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Enteral tube tracking system | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous biliary biopsy procedure kit | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Breast brachytherapy system applicator, remote-afterloading | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Interventional radiology percutaneous-access procedure kit | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Multichannel endotherapy guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Vascular filter catheter | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Ureteropelvic filter catheter | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Surgical instrument battery insertion guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Laser lithotripsy fiber/suction guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Non-implantable needle guide, reusable | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Laparoscopic surgical adhesive/sealant catheter | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Osteotomy guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Pacing lead implantation adaptor | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Endotracheal tube guide, single-use | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Surgical drill guide, single-use | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Pacing/defibrillation lead extraction extender | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Guide wire | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Surgical drill guide, reusable | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Endotracheal tube guide, reusable | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Urethral self-catheterization guide, single-use | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Urethral self-catheterization guide, reusable | Is a | False | Guide | Inferred relationship | Existential restriction modifier |  | 
| Cannulated surgical drill guiding pin | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Open-surgery ligator guide sheath | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Flexible laparoscope protective guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Retinal prosthesis implant guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Skin marker guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Multichannel gastrointestinal endoscopic guide, non-steerable | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Tracheostomy tube guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  | 
| Reverse shoulder arthroplasty drill guide | Is a | True | Guide | Inferred relationship | Existential restriction modifier |  |