# K161764: SLIT LAMP, Model: YF-100

- Pathway: 510(k) (Traditional)
- Applicant: Chongqing Yeasn Science-Technology Co., Ltd.
- Decided: Feb 16, 2017 after 234 days
- Product code: HJO (Biomicroscope, Slit-Lamp, Ac-Powered)
- Device class: 2
- Regulation: 21 CFR 886.1850
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 2 generations back to K900476 (1990). 5 ancestors in all.
No later device cites it as a predicate yet.
0 of 6 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K082031: Appasamy Slit Lamp, A1A-11 and A1A-12 Series, Appasamy Associates (2008) Summary page 5.

## Indications for use
The SLIT LAMP is an AC-powered slit lamp biomicroscope that is intended for use in examining the anterior eye segment, from the corneal epithelium to the posterior capsule. It is used to aid in the diagnosis of diseases or trauma, which affect the structural properties of the anterior segment of the eye.

Source page: https://510kreport.com/device/K161764
Methodology: https://510kreport.com/methodology