injection
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Syringe 'watch' puts a life-saving allergy shot on your wrist
If you're prone to serious allergic reactions, carrying an epinephrine shot (such as an EpiPen) could be vital. Those shots are often bulky, though, and there's a real chance you could lose yours right before you need it. Students at Rice University have a (relatively) simple solution: put the shot on your wrist. They've developed a wearable, the EpiWear, that hides a foldable epinephrine syringe in a device not much larger than a watch. If you're in an emergency, you just need to unfold it, flick a safety lever and push a button when you're ready to inject the medicine into your thigh.
Hydrogel injections could increase wounded soldier survival rates
If a team of researchers from MIT and Texas A&M University have their way, wounded soldiers will have soon have a better chance of survival. The project is a biodegradable gelatin that once injected, helps with blood coagulation, cutting down on blood loss internally. In some trials, the hydrogel decreased the time it took for the blood to clot by 77 percent after it maneuvered into position. The medical solution is still in the testing phase, but once its perfected, researchers hope to see soldiers add preloaded syringes packed with the material to their gear arsenals. [Image credit: Behrouz Mehri/AFP/Getty Images]
Robopsy is a low-cost, disposable patient-mounted medical robot
In a less gelatin-centric demo, the Harvard-based team behind the Robotically Steerable Probe showed off some Robopsy devices during our visit to the school, rings that can help medical imaging technology like CT, ultrasound and MR physically pinpoint precise locations on patients. The devices, which can hold up to ten needles, are lightweight, mounting directly on patients via adhesives or straps. The medical robots are made largely of inexpensive injection molded plastic parts, making them disposable after they've been used on a patient, popping the motors and other control electronics onto another device. In all, the team says Robopsy rings are "orders of magnitude" cheaper and lighter than other medical robotic devices. Check out a video of the one of the Robopsy devices running after the break.%Gallery-161787%
Robotically Steerable Probe aims at minimally invasive surgery, moves through gelatin like a champ
Who doesn't prefer to have the word "surgery" preceded by the phrase "minimally invasive?" During our trip to the Harvard research labs today, we were given a demo of the Robotically Steerable Thermal Ablation Probe, a device designed to help minimize the number of injections required when treating something like a tumor. The machine is guided by a x-ray image onto which a doctor can choose a number of destinations. Rather than being forced to re-inject the patient, the outer cannula moves up and down to locate the position, with a thinner curved stylet extends from within it, reaching the designated area. In order to hit subsequent spots, the stylet retracts back into the cannula, which adjusts its up and down position, extending once again to reach the area. Applications for the technology extend beyond just injection, including the possibility of extracting tissue samples from a patient. You can check out a demo of the device doing its work after the break. But don't worry, it's just gelatine.
MIT's needleless injections help you get drugs faster, doesn't even hurt (video)
Afraid of needles? You may not have to be if a team of MIT scientists get their way. Researchers in the Department of Mechanical Engineering are developing a jet-injection device (similar to this one) that allows professionals to pump you full of meds without poking you with a needle. The key to puncture free pharmaceuticals is pressure -- the device uses a Lorenz Force actuator to push medicine out of an opening about the diameter of a mosquito's proboscis. The nozzle pulls liquids out just as fast and efficiently as it administers them, researchers say, and can even deliver powder-based drugs as if they were a liquid, thanks to a bit of supersonic trickery. This tech could be a boon to healthcare workers who get pricked on the job or patients who get daily insulin shots. Promises of painless inoculations piquing your interest? Hit the video after the break to see how its done.
DevJuice: Injection for Xcode
Are you one of the many devs who miss Xcode's "Fix and Continue" feature? Apple removed "Fix and Continue" in Xcode 4. This option allowed you to patch your binary with updated code, as you ran and debugged it. Well, there's good news. Developer John Holdsworth has released Injection for Xcode. It's an OS X application that lets you inject those same code changes into running applications for development and debugging. It works with both OS X and iOS apps, including those running on devices. It works by allowing your classes to be recompiled selectively as class categories. These are loaded at run time via bundles, and override your originally compiled code. So you can modify, enhance, and adapt your code during run time and tweak elements on the go. Holdsworth has been working with this feature for quite a long time. He writes: In London there were two banks which embraced NeXT for developing front office trading systems in an age before even windows 3.1. The hardware was only just up to it however and build times where at three quarters of an hour so we started using this means of patching the app using bundles rather having to relink the whole thing. I asked him to fill in some of his background about working with Apple and NeXT technology. He responded: I first encountered NeXT in 1989 at IRCAM the computer/music research institute in Paris where I fell in love with Objective-C. It's great to see things coming full circle with all this memory managed stuff, and C++, such a half baked language falling away. How ironic that it should be a mobile device which paved the way. If you ask me the closest we've been to Object-Oriented Nirvana is Smalltalk, and Objective-C is pretty close to that. Steve visited one day spinning the reality distortion field about the new "autorelease" mechanism. Quite the mystic. My only other claim to fame was when the Apple purchase of NeXT came through I sent him an email enthusing greatly and got a reply saying "Thanks John, a Merry Christmas to you and your family." Been a disciple ever since. Shame I didn't buy the stock. Unfortunately, Apple has been a bit squirrelly about letting Injection into the OS. Holdsworth first hoped to start selling Injection on the Mac App Store back in February. Apple has been sitting on the app for months, failing to give it a thumbs up or down. Do you want to help out? Drop Apple a note at appreview@apple.com and ask them to expedite approval on Injection for Xcode (App number #id498448895). Until then, Injection for Xcode is available on Holdsworth's personal site. It offers a two-week trial period and costs US$9.99 (individual license) or $25.00 (corporate) after that. Licenses are issued per-machine. To purchase, the app guides you through PayPal (via a web view) after the trial period.
Vaccine-delivery patch uses microneedles to do its dirty work, looks good in testing
This dissolving microneedle patch has been in development for well over a year now, but Mark Prausnitz -- a professor in the Georgia Tech School of Chemical and Biomolecular Engineering -- along with a number of other GT and Emory University colleagues, have just now wrapped up a lab trial that brings it that much closer to market. As the story goes, this vaccine-delivery patch, which is based on hundreds of microscopic needles that dissolve into the skin, was recently seen as reliable in a round of mice tests, and the powers that be have also concluded that these patches would cost "cost about the same as conventional needle-and-syringe techniques, and may lower the overall cost of immunization programs by reducing personnel costs and waste disposal requirements." Oh, and did we mention that you could apply 'em on your own with little to no pain? FDA approval, we're waitin' on ya.
Bloodbot draws blood, inspires fear
We've seen our fair share of scary robots in these parts, and we're not going to mince words here: there is no way we are going anywhere near one that's armed with a hypodermic needle -- and we sure as hell aren't going to sit still and let it draw blood! Currently being developed by a team at Imperial College in London, the Bloodbot is designed to probe your arm for the presence of a vein, stick you with the needle, puncture the vein, and then stop short of rupture. The system, which has thus far only been tested on one patient (sounds like we're not the only ones with reservations regarding the device) has been accurate about 78 percent of the time, meaning it only resulted in screaming fits 22 percent of the time -- unlike your friendly neighborhood nurse or medical technician, who is accurate nearly 100 percent of the time (and still inspires the occasional fit, but that's another story). [Via Switched]
