Browse hierarchy: [Neurology (NE)](/submissions/NE) → [Subpart B — Neurological Diagnostic Devices](/submissions/NE/subpart-b%E2%80%94neurological-diagnostic-devices) → [21 CFR 882.1825](/submissions/NE/subpart-b%E2%80%94neurological-diagnostic-devices/882.1825) → GZN — Rheoencephalograph

# GZN · Rheoencephalograph

_Neurology · 21 CFR 882.1825 · Class 3_

**Canonical URL:** https://fda.innolitics.com/submissions/NE/subpart-b%E2%80%94neurological-diagnostic-devices/GZN

## Overview

- **Product Code:** GZN
- **Device Name:** Rheoencephalograph
- **Regulation:** [21 CFR 882.1825](/submissions/NE/subpart-b%E2%80%94neurological-diagnostic-devices/882.1825)
- **Device Class:** 3
- **Review Panel:** [Neurology](/submissions/NE)

## Identification

A rheoencephalograph is a device used to estimate a patient's cerebral circulation (blood flow in the brain) by electrical impedance methods with direct electrical connections to the scalp or neck area.

## Classification Rationale

Class III (premarket approval).

## Recent Cleared Devices (0 of 0)

_No cleared devices on record._

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**Source:** [https://fda.innolitics.com/submissions/NE/subpart-b%E2%80%94neurological-diagnostic-devices/GZN](https://fda.innolitics.com/submissions/NE/subpart-b%E2%80%94neurological-diagnostic-devices/GZN)

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