Some 30,000 years ago, prehistoric man wielded animal bones as needles to suture otherwise lethal wounds. This tactic has been used, and improved upon, over time and remains the basis of surgical procedures conducted today. Even with radical new surgical techniques, which rely on metallic and polymeric staples or chemical adhesives to seal incisions, infection and permanent scarring remain major concerns.
Every year, an estimated half-million Americans undergo surgery to have a stent prop open a...
A robotic arm that can bend, stretch and squeeze through cluttered environments has been created...
A smartphone app created by students at Rice Univ. may someday serve as the ultimate remote to help control the flow of blood through human hearts. The Flowtastic team of Rice senior engineering students created a combined software-hardware interface that works with an Android app to monitor and even control a high-tech pump that resides in the aorta and regulates the flow of blood.
Scientists at the Univ. of Sheffield have succeeded in using a 3-D printed guide to help nerves damaged in traumatic incidents repair themselves. The team used the device to repair nerve damage in animal models and say the method could help treat many types of traumatic injury.
The large majority of the 50 million people around the world who suffer from epilepsy can be treated by anticonvulsant drugs.
After undergoing surgery to remove diseased sections of the colon, up to 30% of patients experience leakage from their sutures, which can cause life-threatening complications. Many efforts are under way to create new tissue glues that can help seal surgical incisions and prevent such complications; now, a new study reveals that the effectiveness of such glues hinges on the state of the tissue in which they are being used.
Lori Simons took the bright orange pill at 3 a.m. Eight hours later, doctors sliced into her brain, looking for signs that the drug was working. She is taking part in one of the most unusual cancer experiments in the nation. With special permission from the Food and Drug Administration and multiple drug companies, an Arizona hospital is testing medicines very early in development and never tried on brain tumors before.
Researchers at Oregon State Univ. have developed a new way to selectively insert compounds into cancer cells—a system that will help surgeons identify malignant tissues and then, in combination with phototherapy, kill any remaining cancer cells after a tumor is removed. It’s about as simple as, “If it glows, cut it out.” And if a few malignant cells remain, they’ll soon die.
Recovery of feeling can gradually improve for years after a hand transplant, suggests a small study that points to changes in the brain, not just the new hand, as a reason. Research presented at a meeting of the Society for Neuroscience sheds light on how the brain processes the sense of touch, and adapts when it goes awry. The work could offer clues to rehabilitation after stroke, brain injury, maybe one day even spinal cord injury.
Millions of people with stents that prop open clogged heart arteries may need anti-clotting drugs much longer than the one year doctors recommend now. A large study found that continuing for another 18 months lowers the risk of heart attacks, clots and other problems. Even quitting after 30 months made a heart attack more likely, raising a question of when it's ever safe to stop.
A Rice Univ. team led by bioengineer Jeffrey Jacot and chemical engineer and chemist Matteo Pasquali have created new pediatric heart-defect patches infused with conductive single-walled carbon nanotubes that allow electrical signals to pass unhindered. The nanotubes overcome a limitation of current patches in which pore walls hinder the transfer of electrical signals between cardiomyocytes, the heart muscle’s beating cells.
Laparoscopic Surgery was introduced with a goal to reduce morbidities associated with open surgical techniques. Twenty years later, although it has brought much better outcomes across a number of indicators, it still has some significant patient morbidities and mortality risks associated with it. Port site hernia is one such example. No ubiquitous global device-based standard of care developed has been accepted to deal with this issue. neoSurgical’s neoClose brings a simple, accurate technology/device-based solution that can be deployed in less than 30 sec.
Milliken and Company’s ASSIST Silver is a low-adherent antimicrobial dressing used primarily in burn care for the management of skin grafts. The dressing incorporates three primary features: Active Fluid Management (AFM) technology, an ionic silver antimicrobial and a low-adherent layer.
Globally, 22 million infants aren’t receiving basic vaccines and 1.5 million children will die each year from vaccine-preventable diseases before they reach age five. This challenge is further complicated by the fact that most vaccines must be refrigerated, and more than a billion people globally don’t have reliable access to electricity. Vaccination rates are lowest in remote and rural locations. As part of Intellectual Ventures’ Global Good program, Intellectual Venture Labs (IVL) approached Stratos Product Development for help in developing an insulated container to strengthen and extend vaccination services in developing countries.
Injuries, birth defects (such as cleft palates) or surgery to remove a tumor can create gaps in bone that are too large to heal naturally. And when they occur in the head, face or jaw, these bone defects can dramatically alter a person’s appearance. Researchers have developed a “self-fitting” material that expands with warm salt water to precisely fill bone defects, and also acts as a scaffold for new bone growth.
Lawrence Livermore National Laboratory recently received $5.6 million from DARPA to develop an implantable neural interface with the ability to record and stimulate neurons within the brain for treating neuropsychiatric disorders. The technology will help doctors to better understand and treat post-traumatic stress disorder (PTSD), traumatic brain injury (TBI), chronic pain and other conditions.
Imagine watching a procedure performed live through the eyes of the surgeon. That’s exactly what surgical leaders in the U.S. were able to do while overseeing surgeons training in Paraguay and Brazil with the help of UCLA doctors and Google Glass. UCLA surgeon Dr. David Chen and surgical resident Dr. Justin Wagner have made it their mission to teach hernia surgery around the world and are harnessing the latest technologies to help.
Artificial joints have a limited lifespan. After a few years, many hip and knee joints have to be replaced. More problematic are intervertebral disc implants, which cannot easily be replaced after they “expire” and are usually reinforced, which restrict a patient’s movement. Researchers in Switzlernad have now succeeded in coating mobile intervertebral disc implants so that they show no wear and will now last for a lifetime.
Every year, more than 1 million people in the U.S. have little mesh tubes called stents inserted into their blood vessels to prop them open. The procedure has saved many lives, but it still has potentially deadly downsides. Now scientists are reporting that coating stents with vitamin C could lower the implants’ risks even further.
Scientists have recently combined optical coherence tomography (OCT) with other instruments to help doctors provide safer, less painful, and more effective care for women in labor and people with diabetic retinopathy and glaucoma. Their work, to be showcased at CLEO in San Jose, Calif., in June 2014, will enable precision-guided epidural needles and blood flow measurements without contrast agents.
Photodynamic therapy (PDT) is an effective treatment for easily accessible tumors such as oral and skin cancer. But the procedure, which uses lasers to activate special drugs called photosensitizing agents, isn’t adept at fighting cancer deep inside the body. That could change because of a new technology that could bring PDT into areas of the body which were previously inaccessible.
Researchers from The Univ. of Texas at Dallas and the Univ. of Tokyo have created electronic devices that become soft when implanted inside the body and can deploy to grip 3-D objects, such as large tissues, nerves and blood vessels. These biologically adaptive, flexible transistors might one day help doctors learn more about what is happening inside the body, and stimulate the body for treatments.
Researchers have recently developed a unique technology to help physicians perform ultrasound-guided procedures involving needle placement. The new imaging technology, created by Clear Guide Medical, allows physicians to plan needle entry and a precise line to the target before the needle ever enters the patient’s organ or tissue. The result is more efficient, less damaging, and less stressful needle-placement procedures for patients.
In the hands of some Rice Univ. senior engineering students, a fishing rod is more than what it seems. For them, it’s a way to help destroy blood clots that threaten lives. Branding themselves as “Team Evacuator,” five students have been testing a device to break up blood clots that form in the bladders of adult patients and currently have to be removed by suction through a catheter in the urethra.
Univ. of Texas at Arlington and Texas Health Arlington Memorial Hospital are investigating whether bone grown from the body’s own stem cells can replace traditional types of bone grafting. The process, which has been successful in previous lab experiments, uses biodegradable polymer scaffolding material and bone morphogenetic protein, or BMP, which was inserted into the abdomen of mice to attract stem cells that in turn produced bone.
A new organ has been developed at George Washington Univ. to help return blood flow from veins lacking functional valves. A rhythmically contracting cuff made of cardiac muscle cells surrounds the vein acting as a 'mini heart' to aid blood flow through venous segments. The cuff can be made of a patient’s own adult stem cells, eliminating the chance of implant rejection.
Adopted a common technique used in biochemistry, called agarose gel electrophoresis, researchers have investigated the damage to DNA that might have been caused by use of an atmospheric pressure plasma jet. This qualitative and quantitative study could ultimately lead to plasma-based tools for cancer therapy or hospital hygiene and other purposes.
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