2results about How to "Realize scanning imaging" patented technology

The present invention discloses a photoacoustic-white light common field endoscope device with optical path multiplexing and an imaging method. The device includes a handheld endoscope probe, a laser / optical illumination system, and a control and data acquisition reconstruction system; the handheld endoscope probe includes a photoacoustic-white light optical path multiplexing component, a laser coupling scanning component, and a photoacoustic white light detection component; the laser coupling scanning component realizes the focusing and scanning of the laser, and the photoacoustic-white light optical path multiplexing component generates a photoacoustic signal and a white light reflection signal; the photoacoustic signal is received by the photoacoustic detection component, and the white light emission signal is received by the white light detection component. The photoacoustic excitation optical path and the white light imaging optical path of the present invention share the same path, so that the photoacoustic imaging and the white light imaging realize common field imaging with the imaging center coincident. Therefore, the present invention can simultaneously obtain the optical imaging of the surface light reflection information and the photoacoustic imaging of the deep light absorption information, and realize the dual-modal common field imaging detection of white light guided-photoacoustic microscopy.

This invention discloses an ultrasonic probe and ultrasonic diagnostic device, including a handle, a shaft, and a head end. The shaft is located between the handle and the head end, positioning the head end at a predetermined distance away from the handle. The device also includes: a drive mechanism located within the handle for outputting driving force; a bevel gear transmission mechanism located within the head end and connected to the drive mechanism; and an ultrasonic transducer located within the head end and connected to the bevel gear transmission mechanism, so that when the drive mechanism is operating, the bevel gear transmission mechanism drives the ultrasonic transducer to oscillate. The drive mechanism drives the ultrasonic transducer to oscillate via the bevel gear transmission mechanism. The bevel gear transmission mechanism achieves motion transmission through the meshing of the driving and driven bevel gears, resulting in high transmission accuracy, small transmission backlash, and stable transmission. Therefore, the ultrasonic transducer exhibits high motion accuracy, ensuring the image quality obtained by the ultrasonic transducer.