What is Biocompatibility testing for Medical Device?
Biocompatibility of Medical Device refers to the synergy of the device with the skin surface. Based on the level of interaction between the Medical Device and Skin Surface the tests are divided into several categories. Generally, based on the level of invasiveness Medical devices are classified as Class I, Class II, and Class III. Medical Devices interact with intact skin or broken & damaged skin. Based on the interaction tendency and invasiveness ISO 10993-1 outlines guidelines to evaluate medical devices to ensure patient safety.
Testing for a Class II (Devices coming in contact with Intact Skin) Medical Device
Cytotoxicity
The test ensures that there is no leachable toxicity released from the device. The tests are conducted under controlled conditions on mice or similar small lab organisms to check the device's cytotoxicity.
Sensitivity
Every device is developed ignoring moderate risks. With the biocompatibility tests for sensitivity, we ensure that there are risks that pose an issue of sensitivity for the patients. To evaluate sensitivity an extract is taken from the device and tested on human skin for 24-48 hours.
Irritation
Everybody reacts in a different manner to a specific effect of a Medical Device. It's important to evaluate that the device does not cause any major irritation or pain effects on the skin surface. The device is clinically evaluated under the careful guidance of authorized doctors to ensure the device is safe and specific instructions can be formulated for use in specific conditions.
Why is biocompatibility testing important?
Biocompatibility testing ensures that the device is completely safe to use. In the case of devices that are highly invasive, it's completely prohibited to sell a device that is not biocompatible.
To understand this better, consider the case of Allergan breast implants
Natrelle BIO CELL textured breast implants were recalled as they presented a significant risk of anaplastic large cell lymphoma (BIA-ALCL). The biocompatibility issues and seriousness of the impact these caused lead to havoc. FDA prohibited the distribution and sales of these devices and ordered a recall of around 246,381 devices.
Not performing a Biocompatibility test or cutting corners around the safety of the medical device can lead to fatal consequences for the patient and long legal repercussions for the manufacturers and sellers.
It is important for manufacturers to comply with international guidelines on safety and biocompatibility to limit recalls and maximize safety for the end-users.
Schedule a consultation with Johari Digital Healthcare Ltd to explore regulatory compliant Medical Device Manufacturing with Johari Digital Healthcare Ltd.












