Cytotoxicity testing according to ISO 10993-5 in the laboratory

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You would like to perform cytotoxicity testing on your medical devices according to ISO 10993-5

Ensuring the biological safety of your medical devices is an essential regulatory requirement.

Cytotoxicity assessment is the first key step in demonstrating biocompatibility and eliminating any risk of cellular toxicity to the patient.

At the FILAB laboratory, we support you in conducting your in vitro cytotoxicity tests (elution, direct or indirect contact) in accordance with ISO 10993-5.

Principle of cytotoxicity testing according to ISO 10993-5

The test is based on observing the response of living cells exposed to the material or its extracts.

Several approaches can be used:

ISO 10993-5

Extraction test

The device or material is placed in an extraction medium to recover any substances that may be released. This extract is then brought into contact with a cell culture.

Test by direct contact

The material is placed directly onto the cell layer in order to observe the impact on cell viability and morphology.

Diffusion test

An intermediate (such as agar) is used to observe the diffusion of any cytotoxic substances into the cells.

The evaluation is then based on several criteria:

Analytical methods used

Depending on the nature of the device and the biological evaluation strategy, several methods can be implemented:

  • Cell viability assay (MTT, XTT, NRU…)
  • Microscopic observation of cells
  • Measurement of cellular metabolic activity
  • Quantitative assessment of cytotoxicity

These assays provide a qualitative and quantitative evaluation of cellular toxicity.

The FILAB laboratory performs cytotoxicity testing according to ISO 10993-5

Why choose FILAB for cytotoxicity testing of your medical devices according to ISO 10993-5

With the support of a partner laboratory, FILAB assists you in performing cytotoxicity tests on your medical devices according to ISO 10993-5, in addition to chemical characterization tests (ISO 10993-18).

In France, within the medical device sector, FILAB is one of the few laboratories to offer you a complete 5,200 m² analytical facility for physicochemical analyses as part of the biological evaluation of your medical devices.

Our human size, our permanent investments and our knowledge of the medical devices sector guarantee to our customers a reliability of the results, a fast treatment of the requests and a tailor-made support of their needs.

Our other analytical services

Our FAQ

What materials and devices are covered by the tests according to ISO 10993-5?

Cytotoxicity testing can be applied to a wide range of products, including:

  • implantable medical devices
  • devices that come into contact with the skin or mucous membranes
  • medical instruments
  • polymer materials
  • coatings or surface treatments
  • adhesives, glues, or inks used in the device

These tests can be performed at various stages of product development: R&D, validation, or quality control.

What is a cytotoxicity testing?

A cytotoxicity test evaluates the potential effect of a material or device on living cells. It determines whether substances released by a product can cause cell damage, reduced viability, or inhibition of cell growth.

These tests are performed in vitro on cell cultures as part of the biological evaluation of medical devices defined by ISO 10993.

What is the purpose of the ISO 10993-5 standard?

ISO 10993-5 defines the test methods for evaluating the cytotoxicity of medical devices.

It specifies, in particular:

  • methods for cell exposure
  • criteria for evaluating toxicity
    experimental
  • conditions to be met

The objective is to ensure a standardized and reproducible evaluation of cell toxicity.

Which medical devices require cytotoxicity testing?

Cytotoxicity testing is generally required for most medical devices, especially those that come into contact with the human body:

  • implantable devices
  • devices that come into contact with the skin or mucous membranes
  • surgical instruments
  • materials or components of medical devices

The requirements depend on the type of contact, the duration of exposure, and the nature of the material.

When should a cytotoxicity test be performed?

Cytotoxicity testing can be performed at several stages of a medical device's lifecycle:

  • during product development (R&D)
  • during material or process modifications
  • as part of a regulatory assessment
  • during quality control

They often constitute the first step in biological evaluation.

How to get a quote from FILAB?

To obtain a quote, you can contact our team via our contact form, by phone, or by email.

Simply tell us your requirements (type of material, desired analysis, applicable standards, urgency, quantity of samples, etc.). We will then send you a personalized technical and pricing proposal within 24-48 hours.

What is the typical duration of the analysis?

Turnaround times vary depending on the nature of the analysis and the complexity of the expert assessment project.

However, FILAB is committed to providing fast turnaround times tailored to your industrial constraints and urgent needs.

The filab advantages
A highly qualified team
A highly qualified team
Responsiveness in responding to and processing requests
Responsiveness in responding to and processing requests
A COFRAC ISO 17025 accredited laboratory
A COFRAC ISO 17025 accredited laboratory
(Staves available on www.cofrac.com - Accreditation number: 1-1793)
A complete analytical facility of 5,200m²
A complete analytical facility of 5,200m²
Tailor-made support
Tailor-made support
Video debriefing available with the expert
Video debriefing available with the expert
Anaïs DECAUX Customer Support Manager
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