# K901885: Partner Volume Monitor

- Pathway: 510(k) (Traditional)
- Applicant: Bird Products Corp.
- Decided: Sep 27, 1990 after 154 days
- Product code: BZK (Spirometer, Monitoring (W/Wo Alarm))
- Device class: 2
- Regulation: 21 CFR 868.1850
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
137 later devices descend from it; 2 cite it directly.
41 of 138 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
- K993449: Bird V.I.P. Gold/Sterling (1999), 134 descendants of its own
- K013642: AVEA (2002), 133 descendants of its own
- K032451: Bird Tbird Vela Ventilator (2004), 114 descendants of its own
- K052554: Modification to: Ivent 201 Portable Ventilator (2005), 112 descendants of its own
- K053270: IVENT 201 (2006), 87 descendants of its own

Source page: https://510kreport.com/device/K901885
Methodology: https://510kreport.com/methodology