# K942211: VMAX229 Series Pulmonary/Metabolic Systems

- Pathway: 510(k) (Traditional)
- Applicant: Sensor Medics Corp.
- Decided: Nov 22, 1994 after 201 days
- Product code: BTY (Calculator, Predicted Values, Pulmonary Function)
- Device class: 2
- Regulation: 21 CFR 868.1890
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
14 later devices descend from it; 6 cite it directly.
0 of 15 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K052328: Zan Lung-Function Lab (2005), 4 descendants of its own
- K133051: Pulmone Minibox PFT TM (2014), 3 descendants of its own
- K120635: Easyone Pro Respiratory Testing Device (2012), 3 descendants of its own
- K091428: Easyone Pro Respiratory Analysis System (2010), 3 descendants of its own
- K161534: EasyOne Pro Respiratory Analysis System (2017), 2 descendants of its own

Source page: https://510kreport.com/device/K942211
Methodology: https://510kreport.com/methodology