# K974903: Gas Module II, Model 0998-00-0143

- Pathway: 510(k) (Traditional)
- Applicant: Datascope Corp.
- Decided: Mar 13, 1998 after 72 days
- Product code: CBS (Analyzer, Gas, Halothane, Gaseous-Phase (Anesthetic Conc.))
- Device class: 2
- Regulation: 21 CFR 868.1620
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
3 later devices descend from it; 1 cites it directly.
0 of 4 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Most influential descendants
- K062754: Gas Module SE, Model 0998-00-0481-02 (2006), 2 descendants of its own
- K180788: Gas Module 3 (2018), 0 descendants of its own
- K150030: Fukuda Denshi DynaScope Model DS-8000 Series Patient Monitor (2015), 0 descendants of its own

## Indications for use
The indications for use for the Gas Module II include monitoring of airway gases, during anesthesia and/or assisted respiration. The intended environment of use is the anesthesia department, including the Operating Room (OR) and post anesthesia care units (PACU), etc.

Source page: https://510kreport.com/device/K974903
Methodology: https://510kreport.com/methodology