# K913396: Cannula Style Thermocouples

- Pathway: 510(k) (Traditional)
- Applicant: Pro-Tech, Inc.
- Decided: May 22, 1992 after 297 days
- Product code: BZG (Spirometer, Diagnostic)
- Device class: 2
- Regulation: 21 CFR 868.1840
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
109 later devices descend from it; 3 cite it directly.
0 of 110 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.

## Most influential descendants
- K982293: Pressure Transducer Airflow Sensor (1998), 106 descendants of its own
- K020607: Sleepflo, Model 101501 (2002), 99 descendants of its own
- K030379: Aplab, Model 801D0030 (2003), 98 descendants of its own
- K041904: Compass F10 System (2004), 54 descendants of its own
- K073682: Embletta Gold (2008), 41 descendants of its own

Source page: https://510kreport.com/device/K913396
Methodology: https://510kreport.com/methodology