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Penn doctors perform the first robot-assisted spinal surgery
Surgical robots are capable of feats that even the most skilled doctors can't manage, and the University of Pennsylvania just offered a textbook example. The school has confirmed that it performed the first-ever robot-assisted spinal surgery, using Da Vinci's robotic arms to remove a rare tumor where patient Noah Pernikoff's spine met his skull. The two-day operation, which took place in August 2017, started with neurosurgeons preparing the spine using ultrasonic cuts, and then brought in the robot to clear a path for removing the tumor through Pernikoff's mouth (you can see a slightly graphic illustration below). The team then used some of Pernikoff's own bone to reconstruct the spinal column section they'd removed.
DARPA has laid the groundwork for thought-powered prosthetics
New research from the government's mad science wing, DARPA, could make life an awful lot easier for people who use prosthetic limbs. You see, DAPRA has devised what it calls the "Atomic Magnetometer for Biological Imaging in Earth's Native Terrain." Or, "AMBIIENT" if you're into the whole brevity thing.
New neural interface restores severed spinal connections without wires
People suffering from spinal cord injuries could soon have another treatment option at their disposal -- one that doesn't involve strapping themselves into a mechanical exosuit. Rather than hardwiring an electronic bridge into a patient's back, a new neural interface bypasses the damaged spine's air gap and transmits motor signals from the brain to the legs wirelessly.
ICYMI: Robots want us to rely on them for daily tasks
try{document.getElementById("aol-cms-player-2").style.display="none";}catch(e){}Today on In Case You Missed It: The latest servant robot to join the Pepper and Buddy crew is Big-I, a Kickstarter bot that uses 3D vision, motion tracking and facial recognition to help out the humans in their household. We say it looks like a rolling trashcan with a disturbingly large eye, but for those looking for an IoT hub that's more mobile than Alexa, it could certainly work.
Graphene key to promising treatment for spinal cord injuries
Graphene seems to have almost limitless potential, from making better batteries to night-vision windshields and microscopic sensors. And now, a team at Rice University has shown the material could be key to a promising new treatment for severe spinal cord injuries.
Flexible spinal cord implants will let paralyzed people walk
Doctors dream of helping the paralzyed walk through implants that stimulate their spinal cords, but current technology makes that impossible; these stiff, unnatural gadgets usually end up damaging or inflaming nervous tissue over time. Swiss researchers may have just solved this problem once and for all, though. Their bendy e-Dura implant combines flexible electrodes (made of platinum and silicon microbeads), cracked gold electronic tracks and fluidic microchannels to deliver both electrical impulses and chemicals while mimicking the spine's movements and avoiding friction. Paralyzed rats in lab tests could both walk again after a few weeks and keep wearing their implants after two months.
Mind-operated robot arm helps paralyzed woman have her cup o' joe (video)
Researchers at the Braingate2 consortium have made a breakthrough that allows people with spinal cord or stroke injuries to control robotic limbs with their minds. The original project allowed subjects with motor cortex-implanted chips to move cursors on a screen with their minds, but they can now command DEKA and DLR mechanical arms to grasp foam balls and sip coffee. Researchers noted that dropped objects and missed drinks were frequent, but improved brain sensors and more practice by subjects should help. To see the power of the mind move perhaps not mountains, but good ol' java, jump to the video below.
FCC grants radio spectrum to muscle-stimulating wireless devices for paralysis patients
The medical community is all smiles today, because the FCC has decided to allocate a chunk of radio spectrum for potentially life-altering wireless devices. Designed for stroke patients and those suffering from brain or spinal cord injuries, these so-called medical micropower networks (MMN) use a set of implanted electrodes and a wearable wireless controller to stimulate the muscles of a paralyzed user. In a statement issued last week, the FCC announced that these devices have been approved for use within the 413 to 457MHz range, as requested in a petition from the Alfred Mann Foundation, which has already constructed several prototype MMN systems. The organization's CEO, David Hankin, immediately lauded the ruling, adding that the Foundation now plans to launch trials of MMN systems on humans, in the hopes of receiving clearance from the FDA. "The FCC's decision removes the most significant roadblock to helping people," Hankin said. "The frequency that has been approved for use is the most efficient for penetrating tissue with radio waves and without which the new generation of our implantable neurostimulator technology would be impossible to advance." The significance of the occasion wasn't lost on FCC chairman Julius Genachowski, either. "These broadband-enabled technologies are life-changing, impacting individuals, families, and communities in ways we can only begin to imagine," Genachowski said in a prepared statement. His sentiments were echoed in remarks from fellow commissioner Mignon Clyburn, who heralded the decision as "one of the most important the commission has adopted during my tenure," citing its potential to "greatly improve the lives of those who are faced with some of today's most difficult medical challenges."
Researchers create spinal cord connectors from human stem cells, heralding breakthrough
It's taken many years and more than a bit of brainpower, but researchers at the University of Central Florida have finally found a way to create neuromuscular connectors between muscle and spinal cord cells, using only stem cells. Led by bioengineer James Hickman, the team pulled off the feat with help from Brown University Professor Emeritus Herman Vandenburgh, who collected muscle stem cell samples from adult volunteers. After close examination, they then discovered that under the right conditions, these samples could be combined with spinal cord cells to form connectors, or neuromuscular junctions, which the brain uses to control the body's muscles. UCF's engineers say the technique, described in the December issue of the journal Biomaterials, marks a major breakthrough for the development of "human-on-a-chip" models -- systems that simulate organ functions and have the potential to drastically accelerate medical research and drug development. These junctions could also pay dividends for research on Lou Gehrig's disease or spinal cord injuries, though it remains unclear whether we can expect to see these benefits anytime soon.
Paralyzed man can stand and walk again, thanks to spinal implant
Here's an amazing story to end your week on a high note: a 25-year-old paraplegic is now walking again, thanks to a groundbreaking procedure developed by neuroscientists at the University of Louisville, UCLA and Cal Tech. The Oregon man, Rob Summers, was paralyzed below the chest in 2006, after getting hit by a speeding car. This week, however, doctors announced that Summers can now stand up on his own and remain standing for up to four minutes. With the help of a special harness, he can even take steps on a treadmill and can move his lower extremities for the first time in years. It was all made possible by a spinal implant that emits small pulses of electricity, designed to replicate signals that the brain usually sends to coordinate movement. Prior to receiving the implant in 2009, Summers underwent two years of training on a treadmill, with a harness supporting his weight and researchers moving his legs. This week's breakthrough comes after 30 years of research, though scientists acknowledge that this brand of epidural stimulation still needs to be tested on a broader sample of subjects before any definitive conclusions can be drawn. Summers, meanwhile, seems understandably elated. "This procedure has completely changed my life," the former baseball player said. "To be able to pick up my foot and step down again was unbelievable, but beyond all of that my sense of well-being has changed." We can only imagine.
Electronic neural bridge helps paralyzed mice walk again, human application might prove tricky
It's only been a week since we heard about age reversal in mice, yet already we've got another big advancement in rodent medical care: a solution for ameliorating the devastating effects of spinal cord injuries. A UCLA research team has shown off a new system that can restore walking motion to a mouse's hind legs, but not only that, it also grants control to the little fella by responding to its front legs' actions. Electromyography sensors detect when a mouse starts to walk up front, triggering electronic signals to be sent to the functional lower portion of its spine, which in turn starts up the rear muscles for a steady walking gait. It's only been tested on a treadmill so far, but the result seems to be a seamless restoration of walking capacity in rodents that doesn't require any outside assistance. The same will be pretty hard to replicate in humans, bipeds that they are, but that's why it's called research and not reobvious.
