# K072843: YG-125T and YG-135T Nasal Adapter

- Pathway: 510(k) (Special)
- Applicant: Nihon Kohden America, Inc.
- Decided: Nov 29, 2007 after 56 days
- Product code: CCK (Analyzer, Gas, Carbon-Dioxide, Gaseous-Phase)
- Device class: 2
- Regulation: 21 CFR 868.1400
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 4 generations back to K915494 (1993). 4 ancestors in all.
No later device cites it as a predicate yet.
0 of 5 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K040875: Cap-One, Model TG-920P, Nihon Kohden America, Inc. (2004) Summary page 1.

## Indications for use
The Nihon Kohden TG-920P CO 2 Sensor Kit is intended for medical purposes to measure the concentration of carbon dioxide in a gas mixture to aid in determining the patient's ventilatory status. Along with other methods indicated by the physician for medical diagnosis, this device is intended as an indicator of patient carbon dioxide concentration during expiration.

Source page: https://510kreport.com/device/K072843
Methodology: https://510kreport.com/methodology