Embedded Flash Data Storage for Medical Devices

Embedded industrial data storage flash devices have been used in many medical device applications due to their high reliability, modular form factors and long life cycles without BOM change.

For many medical devices, a relatively simple memory device like NOR flash and serial flash can meet all the needs of a design. An example would be a test device which measures something and displays the measurement on a LCD screen.

There is no need for a large amount of storage to run the relatively small code. A low capacity and cost memory solution will suffice.

However, in medical devices which require logging data such as heart rate monitors or are designed with an operating system and application, generally 128Mbytes or more of flash data storage is required.

For systems requiring flash data storage memory, first and foremost is the need for reliability. An industrial grade part has the highest reliability SLC NAND memory as well as the best controller and firmware design to ensure a long field life without concern.

Another advantage to flash data storage in medical systems are the modular form factors which are available to the designer. A design made with a connector for CF, SD or other card/module product can be populated at time of manufacture to meet a specific customer deliverable.

Industrial Compact Flash, Industrial SD Cards and Industrial microSD cards have all been used to meet the requirements of reliable medical device designs.

Finally, since many medical devices need to go through an approval cycle and require requalification if there is a change in the Bill-Of-Material (BOM), it is important to have as long a life as possible in the data storage device.

Industrial Grade Flash Storage Devices have long life cycles of >5 years from initial launch to migration to a new BOM. They eliminate the need of multiple qualifications during the life of a medical device.

As an added service, Cactus can also extend the life of a product additional months or years by stocking and bonding material for a Medical device OEM.

Please contact us if you would like to discuss your specific Medical OEM design requirements and the Cactus flash memory solutions.