Now, a camera that can see through human body
A team of scientists has come up with a camera that can see through the human body. The camera is designed to help doctors track medical tools known as endoscopes that are used to investigate a range of internal conditions. The new device is able to detect sources of light inside the body, such as the illuminated tip of the endoscope’s long flexible tube.
Until now, it has not been possible to track where an endoscope is located in the body in order to guide it to the right place without using X-rays or other expensive methods. Light from the endoscope can pass through the body, but it usually scatters or bounces off tissues and organs rather than travelling straight through. This makes it nearly impossible to get a clear picture of where the endoscope is. The new camera takes advantage of advanced technology that can detect individual particles of light, called photons.
Experts have integrated thousands of single photon detectors onto a silicon chip, similar to that found in a digital camera. The technology is so sensitive that it can detect the tiny traces of light that pass through the body’s tissue from the light of the endoscope. It can also …read more