Browse hierarchy: [Hematology (HE)](/submissions/HE) → [Subpart F — Automated and Semi-Automated Hematology Devices](/submissions/HE/subpart-f%E2%80%94automated-and-semi-automated-hematology-devices) → [21 CFR 864.5220](/submissions/HE/subpart-f%E2%80%94automated-and-semi-automated-hematology-devices/864.5220) → LIZ — Assay, T Lymphocyte Surface Marker

# LIZ · Assay, T Lymphocyte Surface Marker

_Hematology · 21 CFR 864.5220 · Class 2_

**Canonical URL:** https://fda.innolitics.com/submissions/HE/subpart-f%E2%80%94automated-and-semi-automated-hematology-devices/LIZ

## Overview

- **Product Code:** LIZ
- **Device Name:** Assay, T Lymphocyte Surface Marker
- **Regulation:** [21 CFR 864.5220](/submissions/HE/subpart-f%E2%80%94automated-and-semi-automated-hematology-devices/864.5220)
- **Device Class:** 2
- **Review Panel:** [Hematology](/submissions/HE)
- **3rd-party reviewable:** yes

## Identification

An automated differential cell counter is a device used to identify one or more of the formed elements of the blood. The device may also have the capability to flag, count, or classify immature or abnormal hematopoietic cells of the blood, bone marrow, or other body fluids. These devices may combine an electronic particle counting method, optical method, or a flow cytometric method utilizing monoclonal CD (cluster designation) markers. The device includes accessory CD markers.

## Classification Rationale

Class II (special controls). The special control for this device is the FDA document entitled “Class II Special Controls Guidance Document: Premarket Notifications for Automated Differential Cell Counters for Immature or Abnormal Blood Cells; Final Guidance for Industry and FDA.”

## Special Controls

*Classification.* Class II (special controls). The special control for this device is the FDA document entitled “Class II Special Controls Guidance Document: Premarket Notifications for Automated Differential Cell Counters for Immature or Abnormal Blood Cells; Final Guidance for Industry and FDA.”

## Recent Cleared Devices (7 of 7)

| Record | Device Name | Applicant | Decision Date | Decision |
| --- | --- | --- | --- | --- |
| [K914847](https://fda.innolitics.com/submissions/HE/subpart-f%E2%80%94automated-and-semi-automated-hematology-devices/LIZ/K914847.md) | CD8 MONOCLONAL ANTIBODIES | Gen Trak, Inc. | Jun 19, 1992 | SESE |
| [K860830](https://fda.innolitics.com/submissions/HE/subpart-f%E2%80%94automated-and-semi-automated-hematology-devices/LIZ/K860830.md) | TECHNICON H.1 SYSTEM, T LYMPHOCYTES METHOD | Technicon Instruments Corp. | Sep 8, 1986 | SN |
| [K843062](https://fda.innolitics.com/submissions/HE/subpart-f%E2%80%94automated-and-semi-automated-hematology-devices/LIZ/K843062.md) | TBM-REAGENT FOR T,B CELL & MONOCYTES | Bd Becton Dickinson Vacutainer Systems Preanalytic | Apr 3, 1985 | SESE |
| [K842218](https://fda.innolitics.com/submissions/HE/subpart-f%E2%80%94automated-and-semi-automated-hematology-devices/LIZ/K842218.md) | ANTI-LEU-4 FITC LYSIN C BUFFER | Bd Becton Dickinson Vacutainer Systems Preanalytic | Dec 27, 1984 | SESE |
| [K833929](https://fda.innolitics.com/submissions/HE/subpart-f%E2%80%94automated-and-semi-automated-hematology-devices/LIZ/K833929.md) | WHITE BLOOD CELLS HUMAN TAND B | Control Diagnostics | Feb 3, 1984 | SESE |
| [K831053](https://fda.innolitics.com/submissions/HE/subpart-f%E2%80%94automated-and-semi-automated-hematology-devices/LIZ/K831053.md) | QUANTIGEN T & B CELL ASSAY | Bio-Rad | Aug 8, 1983 | SESE |
| [K820643](https://fda.innolitics.com/submissions/HE/subpart-f%E2%80%94automated-and-semi-automated-hematology-devices/LIZ/K820643.md) | ORTHO SPECTRUM III & ORTHO-MUNE OK | Ortho Diagnostic Systems, Inc. | Jul 14, 1982 | SESE |

## Top Applicants

- Bd Becton Dickinson Vacutainer Systems Preanalytic — 2 clearances
- Bio-Rad — 1 clearance
- Control Diagnostics — 1 clearance
- Gen Trak, Inc. — 1 clearance
- Ortho Diagnostic Systems, Inc. — 1 clearance

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**Source:** [https://fda.innolitics.com/submissions/HE/subpart-f%E2%80%94automated-and-semi-automated-hematology-devices/LIZ](https://fda.innolitics.com/submissions/HE/subpart-f%E2%80%94automated-and-semi-automated-hematology-devices/LIZ)

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