With the help of camera-guided endoscopes,clinicians catch a look inside the body's cavities to diagnose and treat many different conditions. In the United States alone, up to 20 million endoscopies are performed on patients every year. But even for the most seasoned endoscope users, and the instruments can prove very challenging to utilize effectively; this is due to the fact that blood and other bodily fluids fairly commonly obscure the camera lens in the midst of critical procedures.
Source: phys.org