Model note · Colonoscope
EVIS EXERA III CF-HQ190L colonovideoscope
The CF-HQ190L is a reusable flexible video colonoscope from the Olympus EVIS EXERA III 190 series, used in endoscopy units for examination and treatment of the lower digestive tract from the anus to the ileocaecal valve. It is distinctive for its Dual Focus optics, which switch between a normal and a near focus range at the press of a button, and for built in ScopeGuide coils that show the scope's shape in 3D so loops can be spotted during insertion.
The model
Maker, model and type.
- Maker
- Olympus Medical Systems Corp.
- Model
- CF-HQ190L colonovideoscope
- Device type
- Colonoscope
- Main document
- Open the public document
Key specifications
What the public record says.
| Item | Value | Source |
|---|---|---|
| Field of view | 170 degrees in normal focus, 160 degrees in near focus | Source |
| Depth of field | Normal 5 to 100 mm, near 2 to 6 mm; forward viewing | Source |
| Distal end outer diameter | 13.2 mm | Source |
| Insertion tube outer diameter | 12.8 mm | Source |
| Working length | 1680 mm (L version); total length 2005 mm | Source |
| Instrument channel inner diameter | 3.7 mm; minimum visible distance 4.0 mm from the distal end in normal focus | Source |
| Angulation range | Up 180, down 180, right 160, left 160 degrees | Source |
| Compatible system | CV-190 video system centre and CLV-190 xenon light source | Source |
| FDA clearance | 510(k) K131780 (special 510(k), decision 29 August 2013), predicate K112680; class II, product codes FDF, FDS, NWB | Source |
| Sterility and reuse | Reusable, supplied non-sterile; high-level disinfection or ethylene oxide before use | Source |
Recalls
Known FDA recalls.
- Z-0329-20242023-09-25
Channel air drying after repair was not validated and a small share of repaired scopes went back to customers with wet channels.
FDA record - Z-0415-20242023-10-16
Improperly repaired light guide connector missing adhesive on the suction channel mouthpiece.
FDA record - Z-1207-20242024-01-11
Repaired colonovideoscopes assembled without a protective adhesive.
FDA record
Safety
Safety warnings from the record.
- Routine reprocessing of a scope that has failed the leak test can drive fluid inside and cause further damage. Use the Olympus leaking scope procedure instead. Source
- Switching off the maintenance unit or light source while a leaking scope is still under water can let water into internal spaces. Source
- Water left in channels after repair can support contamination and lead to patient infection. Source
- The scope is supplied non-sterile and must be high-level disinfected or sterilised before use. Source
Sources
Where this note comes from.
- Olympus CF-HQ190L/I brochure (OAIGI0312BRO8796)
- FDA 510(k) summary K131780, EVIS EXERA III Video System
- AccessGUDID record, CF-HQ190L
- Olympus guidelines for returning endoscopes and reprocessing damaged scopes (2014)
- openFDA recall records for CF-HQ190L
- openFDA MAUDE problem counts, model CF-HQ190L
Not covered: The CF-HQ190L operation and reprocessing manuals are not freely downloadable, so model specific inspection steps, leak tester settings and processor messages could not be confirmed; no public error code list exists for the scope itself.
BMEssentia knowledge drafted from public information, reviewed by Hasan Khaled Ismail on 2026-10-24. Always follow the manufacturer's instructions for use and service manual.
Colonoscope