| Device, cystometric, hydraulic / Cystometer, electrical recording | 11 | — |
| Electrode, ph, stomach / Gastrointestinal motility system, capsule | 10 | — |
| Magnetically maneuvered capsule endoscopy system / Colon capsule imaging system | 7 | — |
| Monitor, esophageal motility, and tube / Monitor, esophageal motility, anorectal motility, and tube | 8 | — |