# K023816: Canon Full Auto Tonometer TX-F

- Pathway: 510(k) (Traditional)
- Applicant: Canon, Inc.-Utsunomiya Optical Products Operation
- Decided: Nov 26, 2002 after 11 days
- Product code: HKX (Tonometer, Ac-Powered)
- Device class: 2
- Regulation: 21 CFR 886.1930
- 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 K943939 (1995). 2 ancestors in all.
5 later devices descend from it; 2 cite it directly.
0 of 8 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K963079: Canon TX-10 Tonometer, Canon USA, Inc. (1997) Summary page 1.

## Most influential descendants
- K111710: Full Auto Tonometer Model TX-20 (2011), 3 descendants of its own
- K180820: Tono Vue Non-Contact Tonometer (2018), 2 descendants of its own
- K253039: Auto Kerato-Refracto Tonometer TRK-3 Omnia (2025), 0 descendants of its own
- K223739: VS Tabletop Tonometer (2023), 0 descendants of its own
- K073087: Non-Contact Tonometer, Model FT-1000 (2008), 0 descendants of its own

## Indications for use
The Canon FULL AUTO TONOMETER TX-F is intended to be used for the measurement of intraocular pressure of the human eye.

Source page: https://510kreport.com/device/K023816
Methodology: https://510kreport.com/methodology