Ultrasound is a sound wave with frequencies higher than the upper audible limit of human hearing. This limit varies from person to person and is approximately 20 kilohertz (20,000 hertz) in healthy, young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz. Medical Sonography (Ultrasonography) is an ultrasound-based diagnostic medical imaging technique used to visualize muscles, tendons, and many internal organs, to capture their size, structure and any pathological lesions with real time tomographic images. Conventional ultrasound displays the images in thin, flat sections of the body. Advancements in ultrasound technology include three-dimensional (3-D) ultrasound that formats the sound wave data into 3-D images.
How Does It Function?
Just about everyone feels pain from time to time. When we feel pain, sensory receptors in our skin send a signal via nerve fibres to the spinal cord and brainstem and then onto the brain where the sensation of pain is registered, the information is processed and the pain is perceived. Usually the signal stops when the cause of the pain is resolved i.e. your body repairs the wound on your finger or your torn muscle. But with chronic pain, the nerve signals keep firing even after you’ve healed. It can interfere with your daily life, keeping you from doing things you want and need to do. But a technique called neuromodulation gives you the independence to control when and where you need pain control.
Diabetes prevalence is rapidly increasing in the world. The number of people with diabetes has risen from 108 million in 1980 to 422 million in 2014. Considering the size of the problem, you must all have seen or maybe used a glucose monitor. So, how does it work?
Blood glucose level is kept in check in the body by a hormone called insulin, produced by the pancreas. Unstable insulin levels in blood may cause excess glucose to be converted to fat and be deposited on your blood vessels as plaque. This may cause various complications such as cardio-vascular disease, nerve damage, kidney damage, eye damage among a lot of other complications.
Most often, people use Fitness trackers for keeping track of their fitness activity, set achievable goals and to motivate themselves. Fitness trackers are mostly wearable electronics that measure/track your activity such as steps taken, distance walked, calorie consumption and even heart rate in some cases. Most fitness trackers have an accelerometer that helps in tracking our activity. Some fitness trackers may also have altimeter, music player and many other features. So, how does the fitness tracker do it?
3-D printing in orthopedics is gaining momentum in the production of customized implants, medical devices, and orthotics from diverse materials. 3-D printing technology reduces surgery times, saves money, leads to better stability of the implant in the long run, and improves the clinical outcomes of surgical procedures. 3-D printing applications in orthopedics include:
As we look back on the medtech developments of 2015 there’s definitely a sense that we’re living through revolutionary times. Nearly every day exciting and fascinating technologies are being unveiled by small and large companies, universities, and even tiny independent groups. Empowered by high-powered computers, 3D printers, and other technologies, researchers, scientists, and engineers are coming up with novel solutions to age-old medical problems. Everything from treating gunshot wounds to how fetuses inside the womb are monitored is going through change thanks to technologies developed by thousands of independent minds around the world.