Thursday, December 17, 2009

Bayer Contour USB meter big step forward for design

Bayer USA sent me one of their Contour USB blood glucose meters to review some time ago. For me the summary is easy: this is a great meter with slim design that's easy to use. I like it a lot. Read on for the details and lots of pictures.

LifeScan created a buzz when they released the OneTouch UltraMini a few years ago. Given their sizes, looking at the two meters together is a good way to get a quick comparison point. In the picture both meters have a strip inserted and are prompting for a blood sample. Note the Contour uses standard strips that need a 0.6 microliter drop of blood, by comparison the OneTouch needs 1.0 microliters. Both meters provide results in 5 seconds. The Contour meter is auto calibrated with each strip, while you have to calibrate the OneTouch meters each time you get a new batch of strips.

I'm comparing the readings with my WaveSense Jazz meter, and they are usually within about 10% of each other. So I believe the Contour USB accuracy is good. I need to use the meter over several A1C tests, to do a real comparison.


The color is really eye catching, and the text is very readable. Here's a picture of the Contour USB meter showing a low blood sugar reading of mine.


The designers have used this high resolution screen and color very effectively. When your BG is lower or higher than a range that you set, the result is displayed in an salmon color.

One the right hand side of the meter are three buttons, in the picture above they're between the column reading Reminder|Notes and the Bayer symbol. You can press the button to set a reminder for a later test, or to add some basic notes from a small selection list.

The next picture shows the meter immediately after you apply a blood sample. You're prompted to mark the reading as before or after a meal, or just to continue on to the results. While you're doing this, the result is being calculated. So this step makes the whole thing seem faster.


And don't worry, if your blood glucose is out of range the meter won't wait longer than 5 seconds (time to calculate result) for you to make a choice, it will just display the value.

In case you're wondering where the USB part of this meter is, here's a picture.


The meter has a rechargeable battery that gets powered up whenever you connect it to a standard USB port. They also provide a standalone charger you can plug into an standard outlet (which also works for charging an iPod).

One last picture. If you're testing in the dark, it's really easy to see the results on the screen. But you know how difficult it can be to get the strip into the meter and a sample on the strip. If you click the button at the top of the meter (not visible in my photos) twice, then the area to insert the strip lights up. Note I deliberately took this picture in low light conditions to show you the overall results.


Bayer arranged for me to talk with Rick Case, the project director, and Eric Nelson. These folks were leading the design team, which was completely within Bayer. We had an interesting discussion about product design and some technical issues.

Their target audience for this meter was people in their late teens or early 20s. (Which means that folks like Bennet and me can't get too excited about it!)

They wanted to get the product into the market, so initially it's only in black. But they're considering different meter colors and hope to have these available before too long.

If you use the GlucoFacts software that's provided on the meter itself, it doesn't actually remove the readings off the Contour USB. As the meter holds 2000 readings, you'll get almost a year's worth of readings if you're testing 6 times a day.

You can register at the Bayer site and download a different version of the GlucoFacts software that does take the readings off the meter. The built-in software doesn't allow you to manually enter new values, or A1C readings, but the installed version does. Both pieces of software are written in Java and run on Windows and Mac operating systems.

Because of speed to market, they purchased an off the shelf charger. When you use it, the meter is facing away from you, a minor annoyance. They plan to fix this in later models.

They are reading the sites of many diabetes bloggers, so they're taking note of suggestions and complaints for future versions of their products. One suggestion from me is to enable me to download the readings in some standard format (CSV), so I can look at them using other software. I hope the next version will also include an ability to upload readings to a central server like the MyGlucoHealthMeter.

For the first meter from this team, I think Bayer have done a superb job, and I'd recommend having a good look at this meter.

FYI: The User Guide(PDF) is available.

Final pictures:
A graph from the GlucoFacts software showing blood glucose readings over several days.


Summary of blood glucose readings with some statistics below it.


Summary of readings with a pie chart.

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Tuesday, April 29, 2008

OneTouch UltraLink meter

We finally have a replacement wireless meter for the Minimed Paradigm insulin pumps. The new model is the OneTouch UltraLink meter.

It uses existing OneTouch Ultra test strips, with 5 seconds before you have a reading. The meter lets you flag readings as before or after meal so you can get these averages. It stores up to 500 readings and runs on 2 AAA batteries. For more details read the 90-page user's manual (PDF).

The meter is now being shipped with new Medtronic Paradigm insulin pumps. Those of you who already have a Paradigm pump will have to wait a little longer.

According to the Medtronic FAQ page for this meter
... we plan on sending U.S. customers who own a MiniMed Paradigm 512, 712, 515, or 715 insulin pump a OneTouch® UltraLink™ Meter at no charge later this year.
Minimed gives you a way to find out when you'll get your meter.

This meter is only available to US customers. Outside the US, the replacement meter will be from Bayer. Currently there's no word on the release date for the Bayer wireless meter.

If you have, or want to use, the OneTouch diabetes management software you'll need the latest version (2.3.2). You'll also need to download the newest meter driver to your PC so the UltraLink can be recognized.

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Tuesday, August 21, 2007

Medtronic to change meters it will work with

Now this is an interesting development.

According to a Medtronic press release, Medtronic and Bayer will work together to distribute a new blood glucose meter for Medtronic patients outside the US. Originally I missed the fact that within the US, Medtronic has made a similar agreement with LifeScan. Thanks Kevin and Amy for pointing this out.

The new meter for those in Canada and Europe will be based on the Bayer Contour and will transmit results to Minimed insulin pumps and the Guardian REAL-time CGMS.

The new US meter will be based on the OneTouch platform. I wonder whether they'll use a version of the more stylish OneTouch UltraMini, the Ultra2 or something completely new because of the need to include the circuitry for wireless transmission.

And once again, I hope that one or more of these three companies (Medtronic, Bayer, or LifeScan) will finally decide to work towards a standard format for representing diabetes data.

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