Medical robots (a frequent topic here) are popping up everywhere, whether they're being used in surgeries, assisting paralyzed people, or monitoring remote patients. The latest one helps cardiologists in a type of surgery called percutaneous coronary intervention (PCI), which uses stents and balloon catheters to restore blood flow to blocked arteries.
The FDA has approved Corindus Vascular Robotics' CorPath 200 for PCI surgery. Like other robotic assistants, the CorPath 200 gives surgeons very precise control over fine-tuned tasks, such as manipulating coronary guidewires and stents. It lets them move surgical devices and tools in increments as small as 1mm in blood vessels only 3mm or 4mm in diameter.
A robotic system helps cardiologists with PCI surgery, a procedure that restores blood flow to blocked arteries. (Source: Corindus Vascular Robotics)
The system also helps interventional cardiologists remain at a safe distance from the radiation produced by the X-ray guidance systems they use to perform these procedures. To protect themselves, cardiologists have worn restrictive lead aprons weighing up to 40 pounds, but the physical stress of wearing them can lead to back pain, fatigue, and orthopedic injuries. It's also not clear from the research that's been done whether this protection is adequate over a career that involves repeated exposures.
The CorPath 200 lets surgeons control placement of coronary guidewires, stents, and balloon catheters from a lead-lined cockpit. The surgeon is seated in front of monitors that show the angiography screen. This setup may reduce physical fatigue and head, neck, and back strain. (Watch a video demonstrating the robot here.)
As the basis for submitting its application to the FDA, Corindus conducted a multi-center study, the CorPath PRECISE Trial. The company says this study resulted in an overall procedure success rate of 97.6 percent. Also, in 98.8 percent of patients, PCI surgery could be completed without converting to manual PCI and without device-related complications. The study also found the system reduced radiation exposure by 95 percent.
Corindus says that it expects to use the system's open platform technology and intellectual property to address other types of vascular surgery, including peripheral, neuro, and structural heart applications.
I'm not quite sure what you're asking. The robot surgical tools are the same ones surgeons use, but much smaller and more finely tuned, so they are more accurate. They can be smaller partly because the surgeons are controlling them through a robot intermediary. They are also accompanied by video cams that give the surgeons closeups of what they're working on. So they are really extensions of the surgeon.
Do you see a time, Ann, when technical people -- who may understand the technology better than a surgeon -- are at the controls of this technology? Or, will we see a form of surgical practice that specializes on the use technology?
Rob, in all so-called surgical robots, it's always the surgeons' hands that manipulate the tools. Technically, it should be called robotic-assisted surgery.
Beth, I think the answer is yes. Meaning, a combination of several factors. For one thing, the story I wrote on the open source Raven II surgical robot http://www.designnews.com/document.asp?doc_id=239419 and NASA's use of the daVinci surgical robot http://www.designnews.com/document.asp?doc_id=237609 made it clear that surgical robotics technology is being applied to a variety of applications. Next, the open source Robotic Operating System (ROS), which Raven II is based on, and open source robotics in general, are taking off, broadening the types of surgery robotic assistance is being aimed at. And patients, as well as surgeons, are also becoming more accustomed to the idea and the practice.
Impressive robot, Ann. Sounds like the robots movements are finer than a surgeon's hands. Is it still the surgeon who manipulates the robot? It would be interesting to see in coming year whether technicians will control medical robots, thus replacing surgeons -- a new version of the machine versus the human body.
Cool development, Ann. It does seem like you (and others) have been writing a ton about medical-related robotics technology lately. Have we turned the tide on some particular piece of technology or perhaps a cultural shift that signals this segment is more ready to embrace this kind of technology?
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