surgical instruments proctoscope in white background. using for examine the insides of the rectum and the anus. selective focus

anal anus background cavity center dissection equipment exam examination examine focus handle hemorrhoid hollow hospital insert inside inspection instrument instruments isolated kelly medical parts procedure proctologist proctoscope proctoscopy protoscope rectal rectoscope rectum reusable reuse scope selective sigmoidoscope speculum split stainless steel sterile surgery surgical tip tool treatment tube visual white