Hacking Headaches: Keeping A Neurostimulator Working

We’ve heard a ton of stories over the years about abandoned technology — useful widgets, often cloud-based, that attracted an early and enthusiastic following, only to have the company behind the tech go bankrupt or decide to end operations for business reasons, which effectively bricks hundreds or perhaps millions of otherwise still-usable devices. Now imagine that happening to your brain.

[Markus Möllmann-Bohle] doesn’t have to imagine it, because he’s living it. [Markus] suffers from chronic cluster headaches, an often debilitating condition that leaves a person with intractable pain. Having lived with these headaches since 1987, and treating them with medications with varying degrees of success, [Markus] was finally delivered from his personal hell by a sphenopalatine ganglion (SPG) neuromodulator. The device consists of an unpowered stimulator implanted under the cheekbone that’s wired into the SPG, a bundle of nerves that supply the sinuses, nasal mucosa, tear glands, and many other structures in the face.

To reverse a cluster headache, [Markus] applies an external transmitter to the side of his face, which powers the implant and directs it to stimulate the SPG with low-frequency impulses, which interferes with a reflex loop that causes the symptoms associated with a cluster headache. [Markus] has been using the implant for years, but now its manufacturer has rolled up operations, leaving him with a transmitter in need of maintenance and the possibility of facing his debilitating headaches once again.

The video below shows [Markus]’s workaround, which essentially amounts to opening up the device and swapping in a new LiPo battery pack. [Markus], an electrical engineer by training, admits it’s not exactly a major hack, but it’s keeping him going for now. But he’s clearly worried because eventually, something will happen to that transmitter that’s beyond his skills to repair.

There’s cause for hope, though, as the intellectual property of the original implant company has been purchased by an outfit called Realeve, with the intention to continue support. That would be a lifesaver for [Markus] and everyone relying on this technology to live a normal life, so here’s hoping there’s no need for future hacking heroics. But as the video below details, there is a lot of neurotechnology out there, and the potential for having that bricked by a corporate decision has to be terrifying to the people who depend on them. Continue reading “Hacking Headaches: Keeping A Neurostimulator Working”

PC Classics, Right In Your Browser With EmuOS

[Emupedia]’s work to preserve computer history by way of making classic and abandoned games and software as accessible as possible is being done in a handy way: right in your browser with EmuOS.

A few moments of BIOS startup kicks off EmuOS right in a browser window.

Doing things this way has powerful “Just Works” energy. Visit that link in a modern browser and in no time at all you’ll be looking at a Windows 95 (or Windows 98, or Windows ME) desktop, filled with a ton of shortcuts to pre-installed and ready-to-run classic software. Heck, you can even keep it simple and be playing the original Microsoft Solitaire in no time flat. There is also a whole ton of DOS software waiting to be fired up, just double-click the DOSBox icon, and browse a huge list. The project is still in development, so not everything works, but the stuff that does is awfully slick.

Here’s some additional background that goes into more detail about the project and its capabilities, but if you’d prefer to just click around to explore, here’s the main link again (and here’s a list of mirrors.)

If OS emulation is your thing, don’t miss emulating the IBM PC on an ESP32 microcontroller. And if you’re more into lesser-known vintage operating systems, how about re-inventing PalmOS to run on x86 architecture?

Hackaday Links Column Banner

Hackaday Links: December 18, 2022

By now everyone has probably seen the devastation wrought by the structural failure of what was once the world’s largest free-standing cylindrical aquarium. The scale of the tank, which until about 5:50 AM Berlin time on Friday graced the lobby of the Raddison Blu hotel, was amazing — 16 meters tall, 12 meters in diameter, holding a million liters of saltwater and some 1,500 tropical fish. The tank sat atop a bar in the hotel lobby and was so big that it even had an elevator passing up through the middle of it.

But for some reason, the tank failed catastrophically, emptying its contents into the hotel lobby and spilling the hapless fish out into the freezing streets of Berlin. No humans were killed by the flood, which is miraculous when you consider the forces that were unleashed here. Given the level of destruction, the displaced hotel guests, and the fact that a €13 million structure just up and failed, we’re pretty sure there will be a thorough analysis of the incident. We’re pretty interested in why structures fail, so we’ll be looking forward to finding out the story here.

Continue reading “Hackaday Links: December 18, 2022”