← Product Code [DIF](/submissions/TX/subpart-d%E2%80%94clinical-toxicology-test-systems/DIF) · K041561

# LIQUICHEK WHOLE BLOOD VOLATILES CONTROL (K041561)

_Bio-Rad · DIF · Jul 6, 2004 · Clinical Toxicology · SESE_

**Canonical URL:** https://fda.innolitics.com/submissions/CH/subpart-d%E2%80%94clinical-toxicology-test-systems/DIF/K041561

## Device Facts

- **Applicant:** Bio-Rad
- **Product Code:** [DIF](/submissions/TX/subpart-d%E2%80%94clinical-toxicology-test-systems/DIF.md)
- **Decision Date:** Jul 6, 2004
- **Decision:** SESE
- **Submission Type:** Traditional
- **Regulation:** 21 CFR 862.3280
- **Device Class:** Class 1
- **Review Panel:** Clinical Toxicology

## Indications for Use

The Liquichek Whole Blood Volatiles Control is intended for use as a quality control material to monitor the precision of laboratory testing procedures for the analytes listed in the package insert.

## Device Story

Liquichek Whole Blood Volatiles Control is a liquid, human blood-based quality control material; used in clinical laboratories to monitor precision of toxicology testing procedures. Device contains specific analytes: Acetone, Ethanol, Isopropanol, Lead, and Methanol. Laboratory personnel use the control to verify performance of analytical test systems. By comparing measured values against expected ranges, clinicians ensure accuracy and reliability of patient test results. Product is stored at 2°C to 8°C; stable for 5 days after opening.

## Clinical Evidence

No clinical data. Bench testing only; stability studies performed to validate shelf life (2 years at 2-8°C) and open-vial stability (5 days at 2-8°C).

## Technological Characteristics

Human blood-based matrix; liquid form; contains broad-spectrum anti-microbial cocktail (<0.1% concentration); no sodium azide. Analytes: Acetone, Ethanol, Isopropanol, Lead, Methanol. Storage: 2°C to 8°C.

## Regulatory Identification

A clinical toxicology control material is a device intended to provide an estimation of the precision of a device test system and to detect and monitor systematic deviations from accuracy resulting from reagent or instrument defects. This generic type of device includes various single, and multi-analyte control materials.

## Predicate Devices

- Whole Blood Tox Control (K821975A)

## Submission Summary (Full Text)

> This content was OCRed from public FDA records by [Innolitics](https://innolitics.com). If you use, quote, summarize, crawl, or train on this content, cite Innolitics at https://innolitics.com.
>
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# 510(k) SUBSTANTIAL EQUIVALENCE DETERMINATION DECISION SUMMARY DEVICE ONLY TEMPLATE

A. 510(k) Number: K041561

B. Purpose For Submission:

Premarket Notification 510(k) of intention to manufacture and market the Bio-Rad Laboratories Liquichek Whole Blood Volatiles Control.

C. Analyte:

Contains the following analytes: Acetone, Ethanol, Isopropanol, Lead, and Methanol.

D. Type of Test: Validation control material.

E. Applicant: Bio-Rad Laboratories.

F. Proprietary and Established Names:

Bio-Rad Laboratories Liquichek Whole Blood Volatiles Control.

G. Regulatory Information:

1. Regulation section: 21 CFR §862.3280, Clinical toxicology control material.
2. Classification: Class I
3. Product Code: DIF
4. Panel: 91

H. Intended Use:

1. Intended use(s):

The Liquichek Whole Blood Volatiles Control is intended for use as a quality control material to monitor the precision of laboratory testing procedures for the analytes listed in the package insert.

2. Indication(s) for use:

The Liquichek Whole Blood Volatiles Control is intended for use as a quality control material to monitor the precision of laboratory testing procedures for the analytes listed in the package insert.

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3. Special condition for use statement(s): For Prescription Use.
4. Special instrument Requirements:

The intended instruments are stated in the package insert. Values are listed for the intended analyzers.

I. Device Description:

The product is prepared from human blood with chemicals and preservatives added. The control is provided in liquid form for convenience.

J. Substantial Equivalence Information:

1. Predicate device name(s):

Bio-Rad Laboratories Whole Blood Tox Control.

2. Predicate K number(s): (K821975A)
3. Comparison with Predicate:

Liquichek Whole Blood Volatiles Control claims substantial equivalence to Whole Blood Tox Control currently in commercial distribution (K821975A). The table below lists the similarities and differences between the Predicate and Proposed device.

|  Characteristics | Bio-Rad Laboratories Liquichek Whole Blood Volatiles Control (New Device) | Bio-Rad Laboratories Whole Blood Tox Control (Predicate Device K821975A)  |
| --- | --- | --- |
|  Similarities  |   |   |
|  Intended Use | Liquichek Whole Blood Volatiles Control is intended for use as a quality control material to monitor the precision of laboratory testing procedures for the analytes listed in the package insert. | Use Whole Blood Tox quality control material, to monitor the precision of whole blood toxicology test procedures.  |
|  Form | Liquid | Liquid  |
|  Matrix | Whole Blood | Whole Blood  |
|  Preservatives | Contains preservatives | Contains preservatives  |
|  Storage (Unopened) | 2 °C to 8 °C
Until expiration date. | 2 °C to 8 °C
Until expiration date.  |
|  Open Vial | 5 days at 2 °C to 8 °C | 5 days at 2 °C to 8 °C  |

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|  Characteristics | Bio-Rad Laboratories
Liquichek Whole Blood
Volatiles Control (New Device) | Bio-Rad Laboratories
Whole Blood Tox Control
(Predicate Device K821975A)  |
| --- | --- | --- |
|  Differences  |   |   |
|  **Analytes** | Contains the following analytes:
• Acetone
• Ethanol
• Isopropanol
• Lead
• Methanol

Does not contain:
• Phenylalanine | Contains the following analytes:
• Ethanol
• Isopropanol
• Lead
• Methanol
• Phenylalanine

Does not contain:
• Acetone  |

K. Standard/Guidance Document Referenced (if applicable):

None referenced.

L. Test Principle: Not Applicable

M. Performance Characteristics (if/when applicable):

1. Analytical performance:

a. Precision/Reproducibility:

The mean values printed in the package insert were derived from replicate analyses and are specific for this lot of product. The tests listed were performed by the reagent manufacturer and/or independent laboratories using manufacturer supported reagents and a representative sampling of this lot of control. Individual laboratory means should fall within the corresponding acceptable range; however, laboratory means may vary from the listed values during the life of this control. Variations over time and between laboratories may be caused by differences in laboratory technique, instrumentation and reagents, or by manufacturer test method modifications. It is recommended that each laboratory establish its own means and acceptable ranges and use those provided only as guides.

b. Linearity/assay reportable range:

Not applicable

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c. Traceability (controls, calibrators, or method):

No information was provided about traceability.

The mean values printed in the package insert were derived from replicate analyses and are specific for this lot of product. The tests listed were performed by the reagent manufacturer and/or independent laboratories using manufacturer supported reagents and a representative sampling of this lot of control.

Stability studies have been performed to determine the open vial stability and shelf life for the Liquichek Whole Blood Volatile Control. Product claims are as follows:

1.1 Open Vial Stability: 5 days at 2 to 8 °C.
1.2 Shelf Life: 2 years at 2 to 8 °C.

Real time studies will be ongoing to support the shelf life of this product. All supporting data is retained on file at Bio-Rad Laboratories.

d. Detection limit:

Not applicable

e. Analytical specificity:

Not applicable

f. Assay cut-off:

Not applicable

2. Comparison studies:

a. Method comparison with predicate device:

Not applicable

b. Matrix comparison:

Not applicable

3. Clinical studies:

a. Clinical sensitivity:

Not applicable

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b. Clinical specificity:
Not applicable

c. Other clinical supportive data (when a and b are not applicable):
Not applicable

4. Clinical cut-off:
Not applicable

5. Expected values/Reference range:
Not applicable

N. Conclusion:
The submitted material in this premarket notification is complete and supports a substantial equivalence decision.

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**Source:** [https://fda.innolitics.com/submissions/CH/subpart-d%E2%80%94clinical-toxicology-test-systems/DIF/K041561](https://fda.innolitics.com/submissions/CH/subpart-d%E2%80%94clinical-toxicology-test-systems/DIF/K041561)

**Published by [Innolitics](https://innolitics.com)** — a medical-device software consultancy. We help companies design, build, and clear FDA-regulated software and AI/ML devices. If you're preparing [a 510(k)](https://innolitics.com/services/510ks/), [a De Novo](https://innolitics.com/services/regulatory/), [a SaMD](https://innolitics.com/services/end-to-end-samd/), [an AI/ML medical device](https://innolitics.com/services/medical-imaging-ai-development/), or [an FDA regulatory strategy](https://innolitics.com/services/regulatory/), [get in touch](https://innolitics.com/contact).

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