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Regulatory Science Tools Catalog

The Regulatory Science Tools Catalog provides a peer-reviewed resource for use where standards and qualified Medical Device Development Tools (MDDTs) do not yet exist. These tools do not replace FDA-recognized standards or MDDTs. This catalog collates a variety of regulatory science tools that the FDA's Center for Devices and Radiological Health's (CDRH) Office of Science and Engineering Labs (OSEL) developed. If you are considering using a tool from this catalog in your marketing submissions, note that these tools have not been qualified as Medical Device Development Tools and the FDA has not evaluated the suitability of these tools within any specific context of use. You may request feedback or meetings for medical device submissions as part of the Q-Submission Program.


EES
This regulatory science tool is a lab method for building a 5G network testbed to assess data transmission of medical device functions using 5G connectivity.
MXR
This regulatory science tool (RST) is a method for assessing the image quality of a head mounted display using the display’s transverse chromatic aberration characteristics to align the light measuring device to the eye-point/ center of the eye-box.
Cardiovascualar
This regulatory science tool is a lab method for performing platelet and leukocyte count assays per the <a href="https://www.iso.org/standard/63448.html">ASTM F2888-19 standard</a>, as a part of in vitro thrombogenicity assessment of blood-contacting medical device materials.
Ophthalmology Program Image
This regulatory science tool (RST) is a lab method for evaluating the safety of critical time-dependent radiant power, spectral, and temporal characteristics for multiwavelength high-power laser pointers and handheld compact laser products
MID
This regulatory science tool is a method and phantom design for the evaluation of iodine-specific quantitative measurements, specifically the accurate estimation of iodine concentration within contrast-enhanced spectral CT.
Therapeutic Ultrasound
This regulatory science tool is a lab method that may be helpful while evaluating high intensity therapeutic ultrasound (HITU) devices.
Cardiovascualar
This regulatory science tool is a lab method tool used for simulating target clinical use patient conditions on the bench using a mock circulatory loop in conjunction with the ISO 14708-5 standard specifications for circulatory support devices.
Cardiovascualar
This regulatory science tool is a lab method in the form of a physical mock circulation loop (MCL) used for simulating peripheral radial pressure waveforms.
Materials Program Image
This regulatory science tool is a model for establishing analyte recovery in chemical characterization studies following liquid-liquid extraction.
MID
This regulatory science tool is a lab method that computes bone microstructure metrics to characterize bone morphology and skeletal geometry.
MXR
This regulatory science tool is a method for measuring the line spread function (LSF) and calculating the modulation transfer function (MTF) for head mounted displays (HMDs).
MXR
This regulatory science tool presents a method to measure the radially variant contrast on virtual reality head-mounted displays (VR HMDs) using circular concentric ring patterns, which can be implemented to characterize image quality, including Michelson contrast and effective resolution, on VR HMDs equipped with optical lenses.
AI ML
This regulatory science tool presents a method (web-based decision tree) that may help developers select appropriate metric and endpoint for Artificial Intelligence (AI) / Machine learning (ML) classification algorithms in medical imaging.
CM&S Program Image
This regulatory science tool presents a method for assessing credibility of patient-specific computational models implemented in medical device software. 
Biocompatibility and Toxicology
This regulatory science tool is a method that applies the ISO 10993-17 toxicological risk assessment approach to medical device extractables screening data to assess systemic toxicity, genotoxicity, carcinogenicity, or reproductive/developmental toxicity in the biocompatibility evaluation of a medical device.
Neurology
This RST contains a set of machine or deep learning algorithms which can be utilized in the development of relevant medical devices to assist in the prediction of traumatic brain injury (TBI) and stroke according to resting electroencephalography (EEG).
Cardiovascualar
The 3D human induced pluripotent stem cell-derived cardiomyocyte (hiPSC-CM) Cardiac Contractility Modulation (CCM) Tool, 3D hiPSC-CM CCM Tool, is a laboratory method that includes detailed characterization and protocols for evaluating contractile response in healthy 3D hiPSC-CM models. The core elements of this tool include the ability to perform in vitro CCM contractility assays, including contraction force and kinetics, in 3D hiPSC models for various known and unknown electrophysiology pulse waveform parameters and combinations.
Cardiovascualar
This RST outlines a strategy for estimating the presence of cyclic phase transformation to aid in the determination of appropriate load levels for Fatigue to Fracture testing of nitinol components. Specifically, it includes a flowchart (Figure 1 in Appendix) to estimate the low to high cycle fatigue transition using either computational or experimental methods. Based on the output of the analysis, the user can create a test plan for fatigue testing per ASTM F3211 which includes both expected low cycle fatigue fractures and runouts.
MXR
This tool allows for the creation of immersive 3D scenes using a web browser. WebXR allows for an instant deployment of any 3D scene and scripts and does not need to cater to a specific 3D engine or headset hardware