Dana Lewis kickstarted the Open Artificial Pancreas System (previously) by trying to solve her own problems with monitoring her glucose levels, calculating insulin doses, and administering them around the clock -- an onerous task that her life depended on, which disrupted her sleep and challenged her to make reliable calculations regarding dangerous substances while her blood-sugar levels were troughing or spiking.
The Open Artificial Pancreas uses statistical machine-learning techniques to anticipate movements in blood sugar and introduces small, frequent doses of insulin to smooth out otherwise dangerous and debilitating fluctuations.
The project distributes plans, not hardware, thus sidestepping the need for regulatory approval.
The first models were large and unwieldy, based on Raspberry Pi processors; the latest use Intel Edisons and fit in an enclosure the size of a Tic Tac box.
They had built an algorithm based on the data to predict the future. But it was still basically just an open loop. She got a recommendation from the monitor and had to act. She had to decide "what level of action do I want to be woken up for?"
The next step came quickly.
"We thought, wouldn't it be nice if, on the insulin side, instead of having to wake up and push a button on my pump, it could automatically adjust the pump for me," Lewis said.
She wasn't sure she needed this - she'd solved the super-sleep problem, after all - but social media stepped in again. "We found somebody else who had figured out how to directly communicate with my insulin pump and actually send commands to it," Lewis said. "And he's like, 'You know, you could plug this into your system and actually send commands to your insulin pump.' And he, too, shared his code. That's what open source is: free sharing of code."
They closed the loop. Result: an artificial pancreas that monitors blood sugar and controls the insulin pump.
Open Artificial Pancreas System
Alabamian with diabetes built her own artificial pancreas, gives away plan for free [Lee Roop/AL]
(via Naked Capitalism)
Wired takes a long look at the rapid progress in oral health in the 20th century from this: In 1899, the British Army was recruiting troops to fight in the Boer War and recruiters were appalled at the health of the men who were turning up. They were stunted, malnourished and had appalling teeth. “It […]
The business end of KOKUYO Beetle Tips highlighter looks a bit like a rhinoceros beetle’s horns, hence the name. Three-way refers to the fun you’ll have with the highlighter when you make three different kinds of marks with it. Amazon sells a colorful 5-pack for . [via]
Apple's response to the Congressional committee investigating monopolistic behavior by tech giants contains a chapter on Right to Repair, whose greatest enemy is Apple -- the company led successful campaigns to kill 20 state level Right to Repair bills last year.
In the early days of the web, everyone wanted a .com domain for their site. As a result, all the good ones got snapped up. But .com no longer has the cachet it once did. In fact, many new businesses and individuals are opting for other top-level domain extensions. One of the most memorable is […]
When the SNES launched back in the early 1990s, it changed gaming forever. One of the innovations was a gamepad with four action buttons — something that has remained a constant on controllers ever since. The 8BitDo SN30 Bluetooth Gamepad brings that iconic design up to date, with Bluetooth connectivity and support for multiple platforms. […]
After a long day at work, cooking a meal from scratch can seem like too much trouble. Unfortunately, the alternative is usually something unhealthy. Enter the Mellow Sous Vide Precision Cooker. This compact water bath uses cutting-edge technology to cook meat and veggies at the perfect temperature for exactly the right amount of time. It […]