← Product Code [BZT](/submissions/AN/subpart-b%E2%80%94diagnostic-devices/BZT) · K893409

# YSI MODELS 4400 & 4700 ESOPHAGEAL STETHOSCOPE TEMP (K893409)

_Yellow Springs Instrument Co., Inc. · BZT · Jul 20, 1989 · Anesthesiology · SESE_

**Canonical URL:** https://fda.innolitics.com/submissions/AN/subpart-b%E2%80%94diagnostic-devices/BZT/K893409

## Device Facts

- **Applicant:** Yellow Springs Instrument Co., Inc.
- **Product Code:** [BZT](/submissions/AN/subpart-b%E2%80%94diagnostic-devices/BZT.md)
- **Decision Date:** Jul 20, 1989
- **Decision:** SESE
- **Submission Type:** Traditional
- **Regulation:** 21 CFR 868.1920
- **Device Class:** Class 2
- **Review Panel:** Anesthesiology

## Regulatory Identification

An esophageal stethoscope with electrical conductors is a device that is inserted into the esophagus to listen to a patient's heart and breath sounds and to monitor electrophysiological signals. The device may also incorporate a thermistor for temperature measurement.

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**Source:** [https://fda.innolitics.com/submissions/AN/subpart-b%E2%80%94diagnostic-devices/BZT/K893409](https://fda.innolitics.com/submissions/AN/subpart-b%E2%80%94diagnostic-devices/BZT/K893409)

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