Implants & Prosthetics

A team of researchers at Chalmers University of Technology in Gothenburg, Sweden, say that they have created the world’s first implantable robotic arm controlled by thoughts. Prosthetic leg technology has advanced rapidly in the past decade, but prosthetic arm advances have been much slower. Since...

Recently, researchers at Johns Hopkins Medicine, Baltimore, MD, surgically implanted a pacemaker-like device into the brain of a patient in the early stages of Alzheimer's disease, the first such operation in the United States. The device, which provides deep brain stimulation and has been used in...

Scientists at the Georgia Institute of Technology, Atlanta; the University of Alabama, Tuscaloosa; and Vanderbilt University, Nashville, TN, announced a four-year joint project to develop a below-knee prosthesis capable of actively powering the ankle joint powered by a gas- or liquid-based...

Bioengineers at Tufts University School of Engineering, Medford, MA, have demonstrated that silk-based implantable optics can enhance tissue imaging, administer heat, deliver and monitor drugs. In addition, the devices are biodegradable and biocompatible, harmlessly dissolving at predetermined rates and...

Breast cancer is a terrible affliction that affects approximately one in eight women in the US. In 2012, nearly a quarter- million cases of invasive breast cancer will be diagnosed among women. Due to the progress of medicine and associated treatment, the death rate associated with breast...

A new study shows that many implantable cardioverter defibrillators (ICDs), which are designed to detect and correct dangerous heart rhythms, are programmed to too low a setting, delivering painful shocks for heart rhythms that aren’t dangerous. Making a simple change in the way physicians set...

Engineers at the University of Michigan, Ann Arbor, tested an energy-harvesting device that uses piezoelectricity — an electrical charge generated from motion — to convert energy from a beating heart to provide enough electricity to power a pacemaker. As reported in a study presented at the American Heart...

For decades, overtightening was blamed for causing surgical screws and plates used in bone repair to irreversibly fuse together, making subsequent removal difficult for the surgeon and traumatic for the patient. But a new study from the University of Dayton Research Institute, Dayton, OH, explains...

Disease and damage to the cornea can cause blindness. While corneal transplants could save sight, donor corneas may be hard to come by, and may not be tolerated. A safe artificial cornea could be a solution to saving the vision of those affected. In cooperation with the Aachen Centre of Technology...

Researchers at the University of Illinois (UI), Champaign, in collaboration with Tufts and Northwestern universities, have created a new class of electronic devices: biocompatible and biodegradable electronics for medical implants that can dissolve completely in water or in body fluids. “We refer to this type of...

Biomechanical engineers at the University of Iowa, Iowa City, determined that thigh size in obese people is a reason their hip implants are more likely to fail. In a study, the team simulated hip dislocations as they occur in humans and determined that increased thigh girth creates hip instability in...

A team of engineers at Stanford University, Stanford, CA, has demonstrated that a tiny, implantable cardiac device can get its power from radio waves transmitted from a small power device on the surface of the body. The implanted device could fit on the head of pin. In their paper, published in the journal...

Scientists at the University of Glasgow, Scotland, have found a way to use the regenerative power of stem cells to improve orthopedic implant surgery. They are collaborating with surgeons at Glasgow’s Southern General Hospital to develop a new type of orthopedic implant that could be stronger and more...