| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Guiding catheter, device | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Implantable venous catheter, device | Is a | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Single lumen catheter | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Double lumen catheter | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Fluid perfused catheter | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Nervous system catheter | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Masterson catheter | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Rolon catheter | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Sterile urethral catheters | Is a | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Suprapubic belt | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Suprapubic catheter product | Is a | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Catheter valve | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Catheter accessories | Is a | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Self-retaining catheter | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Intracranial pressure catheter | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Proximal intracranial catheter | Is a | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Peritoneal dialysis catheter | Is a | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Balloon septostomy catheter | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Umbrella catheter, device | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Urinary catheter, device | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Transluminal extraction catheter, device | Is a | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Intra-aortic balloon catheter, device | Is a | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Peritoneal catheter, device | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Nasal oxygen catheter, device | Is a | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Angioplasty balloon catheter, device | Is a | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Central venous catheter, device | Is a | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Nasopharyngeal catheter, device | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Pacemaker catheter, device | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Suction catheter, device | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Coronary perfusion catheter, device | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Fogarty catheter, device | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Peripheral intravenous catheter, device | Is a | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Arteriovenous shunt catheter, device | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Feeding catheter, device | Is a | True | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Manipulation of catheter | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Replacement of catheter | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier | 1 | 
| Occlusion of catheter | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of catheter | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of nasal sinus | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier | 1 | 
| Intubation of esophagus for ph manometry | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Insertion of subclavian feeding line | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous insertion of ureteric stent | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of grommet - procedure | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of peritoneal dialysis catheter | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Checking position of urinary catheter | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier | 1 | 
| Removal of shunt from intracranial subdural space | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of subdural-peritoneal shunt | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of subdural-pleural shunt | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Change of distal catheter site of ventricular shunt | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Removal of ventriculoperitoneal shunt | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Renewal of intracranial pressure transducer | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of tracheoesophageal catheter | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Direct insertion of right atrial catheter | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Direct insertion of left atrial catheter | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Open insertion of right ventricular catheter | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Axillary artery cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Brachial artery cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Radial artery cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Ulnar artery cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Femoral artery cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Posterior tibial artery cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Dorsalis pedis artery cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Insertion of peripheral venous cannula into peripheral vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Insertion of peripheral venous cannula into dorsal vein of hand | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Insertion of peripheral venous cannula into superficial forearm vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Insertion of peripheral venous cannula into antecubital vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Insertion of peripheral venous cannula into dorsal vein of foot | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Insertion of peripheral venous cannula into saphenous vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Insertion of peripheral venous cannula into scalp vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Central venous cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Central venous cannula insertion via internal jugular vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Central venous cannula insertion via external jugular vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Central venous cannula insertion via subclavian vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Central venous cannula insertion via axillary vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Central venous cannula insertion via antecubital fossa vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Central venous cannula insertion via umbilical vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Central venous cannula insertion via femoral vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Central venous cannula insertion via long saphenous vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Pulmonary artery catheter insertion via jugular vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Pulmonary artery catheter insertion via subclavian vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Pulmonary artery catheter insertion via femoral vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Portal venous system cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Portal vein cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Splenic vein cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Pancreatic vein cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Superior mesenteric vein cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Inferior mesenteric vein cannula insertion | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous adjustment of ureteric stent | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous replacement of ureteric stent | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of fallopian tube | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier | 1 | 
| Cardiac catheter without angiogram | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Cardiac catheter pressure measurement | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Thrombectomy with catheter of aortoiliac artery by leg incision | Using | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Thrombectomy with catheter of vena cava by abdominal and leg incision | Using | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Catheter procedure | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Nephroscopic ureteric stent procedure | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Insertion of catheter into esophagus, permanent tube type | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Cerebrospinal fluid shunt removal | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Cystoscopic indwelling catheterization of ureter | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Injection of contrast media for radiography by catheter, supraselective | Using | False | Catheter, device | Inferred relationship | Existential restriction modifier |  | 
| Central venous cannula insertion via jugular vein | Direct device | False | Catheter, device | Inferred relationship | Existential restriction modifier |  |