# K923930: Electrocardiograph Transmitter

- Pathway: 510(k) (Traditional)
- Applicant: Tz Medical, Inc.
- Decided: Oct 21, 1992 after 77 days
- Product code: DXH (Transmitters And Receivers, Electrocardiograph, Telephone)
- Device class: 2
- Regulation: 21 CFR 870.2920
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
81 later devices descend from it; 5 cite it directly.
0 of 82 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
- K981394: Braemar ER700 Series Ambulatory Ecg Event Monitor Models ER710,ER720 (1998), 51 descendants of its own
- K042022: E-Tac EX-1000 Electrocardiographic Event Recorder (2004), 42 descendants of its own
- K090696: Nuvant Cardiac Event Monitoring System; Nuvant Mobile Cardiac Telemetry System (2009), 40 descendants of its own
- K091971: Avivo Mobile Patient Management System, Nuvant Mobile Cardiac Telemetry (MCT) System (2009), 38 descendants of its own
- K111917: Nuvant, Mobile Cardiac Telemetry (2011), 30 descendants of its own

Source page: https://510kreport.com/device/K923930
Methodology: https://510kreport.com/methodology