The invention discloses an internal rectal optical, optoacoustic and ultrasonic multimode imaging
endoscope which comprises a sleeve, an optoacoustic
signal activating component, an ultrasonic
signal activating and collecting component, an
optical imaging component and an image reconstructing and displaying component. A device comprises a compact internal rectal optical, optoacoustic and ultrasonic multimode imaging
endoscope, three kinds of imaging can be performed simultaneously, multi-parameter
physical information and multi-scale structural images in recta can be acquired. The invention further provides a configuration scheme of the whole device and a method for utilizing the device for imaging. Three imaging techniques are highly integrated into one set of instrument, each
imaging technique is optimized, and combination of three rectal
endoscopic imaging methods of
optical imaging,
optoacoustic imaging and
ultrasonic imaging is realized. The integrated
endoscope combines specific advantages of three imaging
modes, rectal physical images with multi-parameter information and multi-scale structural characteristics can be acquired, and application requirements of a rectal endoscope on
medicine can be met better.