Showing posts with label technology. Show all posts
Showing posts with label technology. Show all posts

Friday, April 20, 2007

Can rocket science build a better brain surgeon?

Doctors and scientists at the University of Calgary have developed a surgical robot that's MRI compatible. That means that a brain surgeon sitting at a computer screen can remotely perform surgery on a patient while getting detailed MRI images of the surgery. Pretty neat!

"Many of our microsurgical techniques evolved in the 1960s, and have pushed surgeons to the limits of their precision, accuracy, dexterity and stamina," says Dr. Sutherland, professor of neurosurgery, University of Calgary Faculty of Medicine and the Calgary Health Region. "NeuroArm dramatically enhances the spatial resolution at which surgeons operate, and shifts surgery from the organ towards the cell level."

Designed to be controlled by a surgeon from a computer workstation, neuroArm operates in conjunction with real-time MR imaging, providing surgeons unprecedented detail and control, enabling them to manipulate tools at a microscopic scale. Advanced surgical testing of neuroArm is currently underway, followed by the first patient, anticipated for this summer.


The neuroArm should significantly improve brain surgery by allowing neurologists to do things they can only dream about today.

"The best surgeons in the world can work within an eighth of an inch. NeuroArm makes it possible for surgeons to work accurately within the width of a hair," Doc Seaman says. "This will put us on the world stage and will help attract more top people in medicine and surgery, which will benefit the university and the community as a whole."


And it really is rocket science.

A global search for robotics expertise led Sutherland to MDA, a perfect fit for neuroArm because of the company's background in creating specialized space robots, used aboard NASA space shuttles and the International Space Station.

"NeuroArm is a great fit for us, allowing us to apply our world-renowned space solutions to medical applications that will benefit patients here on Earth," says Bruce Mack, vice-president of development programs of MDA's Brampton operations. "The combination of our remote operation and sensory information expertise, coupled with our manipulation technologies, will enable improved decision making and performance in the operating theatre."

Developing neuroArm required an international collaboration of health professionals, physicists, electrical, software, optical and mechanical engineers to build a robot capable of operating safely in a surgical suite and within the strong magnetic field of the intraoperative MRI environment.


A collaboration between brain surgeons and rocket scientists: there has to be a joke in there somewhere.

Thursday, March 29, 2007

New Hard Drives on the Horizon

I think a lot of new technologies are mostly hype. And some very usefull new technologies take a while to catch on. But every once in a while a new technology (or in this case, an "it's about time" incremental advancement) comes along where I have to say "I wish I had that NOW!"--or more often "I wish I could afford that NOW!"

Soon all laptop hard drives will be based on flash drive technology. They'll be faster, quieter, cooler, and more impact resistant than standard hard drives. Plus they'll be more reliable than current flash drives.

But the new solid-state flash drives use a different form of flash memory, industry analyst Rob Enderle explained to LiveScience.

“Their speed used to be 20 percent faster than magnetic media, but now it’s two to four times faster,” said Enderle, head of the Enderle Group in San Jose, CA. Meanwhile, each flash memory cell can only change state so many times before wearing out, but the new drives make sure that the same cells aren’t used over and over, with repetitive actions being relegated to RAM, he added.

...

Additionally, SSDs don’t make any noise, emit little heat, and consume on average about half the wattage that mechanical drives consume.

...

Samsung claims that its SSDs can survive shocks about six times more powerful than hard drives can survive, and about 20 times more vibration. SanDisk calculates that the average life span of its SSDs is two million hours, or six times more than a mechanical hard drive. Meanwhile, hard drive failure is the cause of 25 to 45 percent of all laptop deaths, Gartner estimates.


I suspect that that's not quite hype-free, but it's obviously leaps and bounds better than my crappy system.