Dan Fowler, Principal Scientist

Recent Posts

Poor Extraction Methods Can Impact Study Results

Posted by Dan Fowler, Principal Scientist on October 09, 2018

When planning a cleaning validation study for your medical device, a validated extraction method is one requirement.

The purpose of an extraction process is to recover any residual soils from the medical device or testing substrate and then quantify those residuals for specific test markers such as protein, hemoglobin or carbohydrates.

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Topics: Medical Device, Technical Expertise, Reprocessing, Regulatory Expertise

Cleaning Validations and Process Robustness: How to Build a Study Design

Posted by Dan Fowler, Principal Scientist on August 14, 2018

The process of cleaning medical devices, either in healthcare settings or at a third-party manufacturer, includes many operational steps and variables. To prove the robustness of process design and to validate that normal process variables do not impact a product’s acceptance criteria, a cleaning validation is executed.

To comply with the 2015 FDA Guidance on reprocessing of medical devices, the validation design for your product should prove the following:

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Topics: Medical Device, Technical Expertise, Microbiology, Reprocessing, Regulatory Expertise

Important to Address the Stacked Effects of Soil Accumulation on Medical Devices

Posted by Dan Fowler, Principal Scientist on July 03, 2018

After each use of a medical device, soil may accumulate at a microscopic or macroscopic level that could potentially impede the terminal disinfection or sterilization process.

Over the course of a medical device’s life cycle, it may be used from one to many hundreds of times. For a reusable or third-party reprocessed product, it may be contaminated, cleaned and disinfected/sterilized multiple times throughout its clinical use.

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Topics: Medical Device, Regulatory, Technical Expertise, Reprocessing, Validation Study