# K972086: Alexander Manufacturing CO. Rechargeable Battery Part Number MS311

- Pathway: 510(k) (Traditional)
- Applicant: Alexander Mfg. Co.
- Decided: Aug 12, 1997 after 69 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.
No later device cites it as a predicate yet.
0 of 1 device 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.

## Indications for use
Replacement battery for OHMEDA (Ohio Medical Products) 690-1000-311 Volume Monitor 5400, 5410, 5420, 6800, 510(k) Number K862687. This battery is shipped only to customers who request a replacement battery for a particular device or to replace a competitor's replacement battery. The biomedical equipment technician therefore knows the intended use is as a replacement battery.

Source page: https://510kreport.com/device/K972086
Methodology: https://510kreport.com/methodology