# K964173: C-Mount Objective Lens F = 17 MM, Steam-Sterilizable: Model 85 261.172, C-Mount Objective Lens F = 21 MM, Steam-Steriliz

- Pathway: 510(k) (Traditional)
- Applicant: Richard Wolf Medical Instruments Corp.
- Decided: Dec 13, 1996 after 56 days
- Product code: FET (Endoscopic Video Imaging System/Component, Gastroenterology-Urology)
- Device class: 2
- Regulation: 21 CFR 876.1500
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
11 later devices descend from it; 2 cite it directly.
0 of 12 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. The FDA summary names its predicate without a number.
- (no number) RIWO lenses f = 15 mm, 30 mm, 60 mm, Model no. 5400/15, 5400/30, 5400/60: named in the summary without a submission number
- (no number) C-mount lenses f = 25 mm, 38 mm, Model no. 20230041, 20230043: named in the summary without a submission number
- (no number) Coupler 28 mm, 35 mm, Model no. 88-9714, 88-9715: named in the summary without a submission number

## Most influential descendants
- K023659: 1-CCD Endocam 5520 System (2003), 10 descendants of its own
- K080977: 3 CCD Endocam 5550 (2008), 7 descendants of its own
- K130423: The Richard Wolf Endocam Logic HD Camera System 5525 (2013), 6 descendants of its own
- K180583: Logic 4K Camera Controller, Logic 4K Camera Head (2018), 4 descendants of its own
- K200617: Logic HD Camera Controller, Logic HD Lite Camera Controller, Logic 4K Camera Contoller, Adapter for Controller 5525 (2020), 2 descendants of its own

## Indications for use
The C-Mount objective lenses serve to connect endoscope to video cameras. The lenses with clamping mechanism are used for video-controlled diagnostics and therapy and allow quick adaptation and fixation of the standard telescopes with eyepiece. The focus ring serves to focus an endoscopic image on the monitor.

Source page: https://510kreport.com/device/K964173
Methodology: https://510kreport.com/methodology