Software in Medical Devices, a blog by MD101 Consulting

In the last article, we saw the concerns about the reliability of wireless connections and how to handle them.
Today, we are going to have a look at something quite important for mobile platforms: usability and humans factors engineering (HFE).

Today I begin a new series of articles about developing (or more broadly designing) a smartphone App that is a medical device.

The very first question is:

Is your App a medical device and does it need to be CE Marked or FDA cleared ?

To continue the topic about FDA draft guidances related to software and information systems, the FDA put in its top list the release of the Guidance of Mobile Medical Apps.

Guidance of Mobile Medical Apps is in the "A-list" of FDA and should be released by the end of 2013.

In hot topics, we have also a warning letter sent by the FDA to Biosense Technologies. The mobile App named uChek Urine Analyzer and developed by Biosense Technologies, falls into the category of medical devices, says FDA. Biosense claims on its website that the App turns the smartphone into a medical lab.

With such claim, it's not surprising that the FDA wants Biosense to submit a 510k!

We've seen in the two previous posts several solutions on how to treat legacy software according to IEC 62304.
But there is nothing equivalent to this discussion in IEC 62304. The standard is silent about these situations.

In the last two posts, we've seen what a software unit is, and when to do software detailed design, according to IEC 62304 and FDA Guidances.

This article is the last of three articles which deal with the concept of "inflation" of medical devices. The first one was on inflation of standards, the second about inflation of regulations. This one, the most interesting to my eyes, is about multiplication of apps on mobile devices, especially smartphones and tablets.
More that 6000 apps are classified in the "heath", "heathcare" or "medical" categories of the Apple or Android appstores. Many of these apps are classified as medical devices and are in the scope of regulations like FDA and CE Mark. Note that some apps may be regulated the FDA but not the CE Mark or vice-versa.

Don't worry, I'm not going to talk about money and quantitative easing! I let people with better knowledge in economics (that makes a lot of people!) do that.
When I talk about inflation, I mean the inflation of software medical devices in their number and variety, which creates a collateral inflation in the number of regulations, guidances, standards, and the like.
This post is the first of a series of three. In this first post, I focus on the inflation of standards. The next one will be on the inflation of regulations and the last one on the inflation of medical devices.

The boom of mobile apps on smart phones clearly impacts the medical devices industry. Doctors are eager to have the last software gadget (the app) on their hardware gadget (the smartphone, the tablet). As a result, many apps on Apple Store and Android Store fall into the scope of medical devices: terminal to remotely display medical images, apps to compute doses of medicines, an so on ... The list is long.

And gess what? These apps shall be certified before being put in the Apple-Android stores. The FDA is clear about these "mobile medical apps" in a draft guidance published in july 2011: "For the subset of mobile medical apps that are subject to regulatory oversight, manufacturers must meet the requirements associated with the applicable device classification." see the Draft Guidance. For the CE mark, the rule is the same, mobile medical apps fall into the category of active medical devices.

The big family of medical devices is getting more and more children. Welcome to the baby smartphone apps!